iMac Pro Teardown

Geschrieben von: Jeff Suovanen
Veröffentlicht: 02/01/18
  • Kommentare: 157

iMac Pro Teardown

Veröffentlicht: 02/01/18

Teardown

Einleitung

Wir haben 4.999 US-Dollar gezahlt, um die heiße neue Magic Mouse und das Magic Keyboard in Space Gray in die Finger zu bekommen – und Apple war so großzügig, einen brandneuen iMac Pro ohne Aufpreis dazuzugeben!

Nehmen wir es also auseinander und sehen, was es zum Ticken bringt.

Folge uns auf Facebook, Instagram und [https:/ /twitter.com/ifixit|Twitter|new_window=true] für die neuesten Teardown-News.

  1. mrrcdKjtQNxLna4u
    mrrcdKjtQNxLna4u
    TEPHYiaofkYOIAMh

    • Unser Teardown iMac Pro verfügt über diese „Einstiegsniveau“-Spezifikationen:

    • 8-Core, 3,2 GHz Intel Xeon W Prozessor mit Turbo Boost bis zu 4,2 GHz

    • 32 GB (4 × 8 GB) 2.666 MHz DDR4 ECC

    • AMD Radeon Pro Vega 56 GPU mit 8 GB HBM2 Speicher

    • 27-Zoll-Display mit einer Auflösung von 5120 × 2880 und Unterstützung für eine Milliarde Farben (P3-Farbraum)

    • 1 TB SSD

    • High-End-Konfigurationen mit bis zu 18 Prozessorkernen sind verfügbar – wenn du also 13.000 $ oder mehr ausgeben möchtest.

    • Wir sind bereit, diese Einheit im Namen der Wissenschaft zu opfern ... aber wir hoffen, dass es nicht so weit kommen wird. Drückt die Daumen, dass es in einem Stück wieder zusammen geht!

  2. LuR6WOLZ6hsAftBU
    LuR6WOLZ6hsAftBU
    KQ2li2PPb5YR1lex

    • Wir können unsere Aufregung kaum zurückhalten, als wir das großartige Zubehör in Space Grey auspacken – Magic Mouse, Magic Keyboard und *keuch*

    • … ein schwarzes Lightning-zu-USB-Kabel.

    • Wir werden zurück sein, um den Teardown fortzusetzen, nachdem wir uns von dem Schock erholt und aus dem Fenster nach Anzeichen von geflügelten Huftieren geschaut haben.

    • Seltsamerweise gibt es immer noch absolut keine Vorkehrungen – Dongle oder andere – für die Verwendung der Lightning EarPods, die du mit deinem iPhone 7, 8 oder X auf deine iMac Pro erhalten. Erscheint es seltsam, dass diese inkompatiblen Produkte ausgerechnet von Apple stammen?

    • Lass uns die schicke Stoffverpackung des iMac Pro abziehen und die Anschlusssituation überprüfen ... nur um sicherzugehen.

    Every iPhone has an adapter for that headphone jack right there on the back where it always was.

    Devin -

    Not so, Devin. That adaptor is to plug regular headphones into an iPhone, not Lighting EarPods into a Mac, for example.

    steve strike -

    Don’t be the person using plug in, free EarPods on a $5000+ computer.

    Frank Reedy -

  3. piLQbOgJnQtAlOqB
    piLQbOgJnQtAlOqB
    LVKreSAxVFnrMloo
    XkE6PdFhhWRqxuln

    Hmm. Must be DDR6.

    George A. -

    George it’s been stated: “Apple is using standard 288-pin DDR4 ECC RAM sticks”

    Dan -

    Humor is appreciated, but sometimes not recognized…

    Another Guest -

    Dan and George, I’m almost certain it’s DDR7. Apple would never be caught with something as outdated as DDR6 in a high-end machine like this.

    Ben Lambert -

    If anyone happens to look back at these comments in about 2040 when DDR6/7 SDRAM is a brand-new thing, you guys are going to have them very confused.

    Jeff Suovanen -

    Curious about the 3.5mm jack, does it have optical support? Or can it be replaced with one that does? :)

    Derek Halman -

  4. vytAqrMLlRrCsPtY
    vytAqrMLlRrCsPtY
    otHDCYhINybat1IS
    tVjjCFAnJ5Sddp6y

    • Wir wetten, dass der Öffnungsvorgang der gleiche sein wird wie beim iMac 5K – das heißt, wenn du einen Pizzaschneider verwenden kannst, kannst du einen iMac Pro öffnen.

    • Mit all dem Glas aus dem Weg haben wir eine perfekte Sicht auf das makellose Innere des iMac Pro. Sag mal, wäre das nicht ein schönes Wallpaper für jemanden?

    “Say, wouldn't this make a lovely wallpaper for someone?” - so where is the 5120x2880 image that is just what is behind the glass? You know we want it!

    Steve R -

    It’s on my iMac Pro. Right after this guide was published, I spent a lot of time carefully sizing the image and cropping it to make it “just right” — and it’s awesome. The iFixit team is welcome to contact me and I’ll gladly provide them a copy to redistribute (since I’m not the copyright holder on the image).

    Sissy Princess -

  5. RvAs2AKvBBSuCrvi
    RvAs2AKvBBSuCrvi
    hLL2LsOhyMMGcOCH
    XdMjjvoyFJp6lPMB

    • Die erste Komponente ist der riesige Dual-Lüfter-Kühler.

    • Es sieht so aus, als hätte Apple die Desktop-Festplatte in voller Größe des 5K geopfert (nicht, dass du das in einem Profi-Computer haben wollen würdest), um hier etwas Platz zu schaffen.

    • Ebenfalls den Kühlgöttern geopfert: die externe RAM-Zugriffsklappe. Sehr traurig.

    • Dafür bekommen wir einen großen hinteren Luftauslass und eine um 80 % gesteigerte Kühlleistung.

    Compared to a Tower-Workstation the cooling solution is tiny for a 120-140 W TDP Xeon and a 175W Vega 56 PRO ?!

    Animarkzero ‍ ‎‎ -

    One of the challenges here is that the very very tiny and supremely delicate wire connectors are super easy to damage. Terrible design. Not something I would ever try again.

    heywardjr -

    You completely skipped how to remove the super small iSight camera connector from the main board. I have never even seen one of these before and have no clue how to remove, still looking on internet.

    Stephen Mull -

    This is the teardown not a repair guide

    Duck -

  6. 1phY3vyjc5oHObME
    1phY3vyjc5oHObME
    UhtP1CH12GW14n3U
    PqkmSw2JwOqgKTWr

    • AirPort-Kartenfunktionen sind auf der Hauptplatine verbaut – aus unbekannten Gründen hat Apple die Modularität des 5K-Modells aufgegeben. Aber wir haben diesen ungewöhnlichen neuen Halteclip für die Koaxialkabel erkannt.

    • Das Netzteil wird nicht über einen, nicht zwei, sondern über vier glänzende Klemmen, die mit Torx-Schrauben gesichert sind, mit der Hauptplatine verbunden.

    • Dieses Design ist viel näher an dem, was wir auf dem Mac Pro 2013 gesehen haben, als die Plastikstecker, die wir gewohnt sind, aus dem iMac 5K herauszureißen.

    • Es macht auch den Zugriff auf Komponenten auf der Hauptplatine (abgesehen vom RAM natürlich) viel, viel einfacher. Wenn das Netzteil wieder in der hinteren Schale steckt, können wir die Platine sofort entfernen. Lass uns das tun!

    At least the coax connectors won’t pop off ;-} Not that they tended to do so this is over kill.

    Dan -

    @sam - Could use a second image showing the other two PS connections to the logic board.

    Dan -

    Those other two are easy to slide out.

    heywardjr -

    There are quite a few screws to remove to get the motherboard out. Getting the board out means tilting it to the right as you gentlybslide it out. It tough as the usb and thunderbolt ports are right there. I ended up damaging the ethernet port doing this piece. Would never do this again! I highly recommend not doing this upgrade yourself. I had to take the unit back to the reseller and get it repaired under the $129 extra I paid for accidental damage. This operation completely voids the Apple warranty according to the reseller because you remove the motherboard they will know because of the non Apple ram.

    heywardjr -

  7. PeDBQFIl6UyAEpwX
    PeDBQFIl6UyAEpwX
    iT4xpHhMZtOgNyhQ
    qWmhUWsHNmBEVbuY

    • Wenn die Platine entfernt ist, ist die erste Aufgabe, den Arbeitsspeicher zu inspizieren.

    • Man kann es nicht anders sagen: Der Weg hierher war ein großes Unterfangen im Vergleich zu der kinderleichten RAM-Zugriffsklappe auf der Rückseite aller vorherigen 27-Zoll-iMacs.

    • Trotzdem haben wir eine gute Nachricht: Dies sind standardmäßige 288-Pin-DDR4-ECC-RAM-Sticks mit Standard-Chips an Bord:

    • SKhynix H5AN8G8NAFR-VKC 2.666 MHz DDR4

    • Wir verlieren keine Zeit und testen ein kleines Upgrade: Wie klingen vier 32-GB-Module auf "maximum" insgesamt 128 GB?

    • Nachdem wir alles schnell wieder zusammengebaut haben, freuen wir uns, berichten zu können, dass das Ergebnis episch ist. Wenn du es zu Hause ausprobieren möchtest, hol dir ein Memory Maxxer RAM-Upgrade-Kit.

    Any idea what the far right RAM module black label (shield) is for? It doesn’t look like it offers much as its not tied to chassis ground.

    Dan -

    Heatpipes are on TOP! of thermal block? Half the pipe is cooling the air instead of the processor?!

    Are Apple Engineers mildly stupid or did they have other problems or was this the cheapest solution?

    If you take a look at any good custom CPU-cooler the heat-pipes are touching the Heatspreader directly for a reason.

    Animarkzero ‍ ‎‎ -

    @Animarkzero Noctua uses the same arrangement in its high-end air coolers - heat pipes on top of thermal block.

    Anton Akusok -

  8. KcxN5pQI5ggQkOQR
    KcxN5pQI5ggQkOQR
    pFV2HtmuVUyMLhRi
    XwHocaMVxBVJANv4

    • Zurück zum Zerlegen desTeils: Als nächstes kommen diese Doppel-SSDs.

    • Unter ein paar Aufklebern finden wir einige Torx-Schrauben. Los geht's!

    • Jedes Blade trägt die Bezeichnung Apple EMC 3197, Modell 656-0061A.

    • Wenn wir die Abschirmungen abnehmen, stoßen wir auf einige Chips:

    • SanDisk SDRQF8DC8-128G (vier pro Karte, zwei oben und zwei unten, für insgesamt 512 GB × 2 = 1024 GB)

    • Apple 338S00285 Power-Management-IC (wahrscheinlich)

    • Im Gegensatz zu einer Standard-SSD, die die Controller-Logik an Bord hat, haben diese Raw-Flash-Module nur einen Schnittstellenpuffer – der PCIe/NVMe-Controller liegt woanders. Mehr dazu gleich.

    Of course, since there is no SSD controller (see below), you can’t really call these “NVMe SSSDs”. They are flash storage devices, but they only form an “SSD” when connected to the controller, which is part of the T2. And that PCIe bus (assuming it is PCIe), is carrying data between the flash chips and the SSD controller, which means it is definitely not NVMe.

    Looks like this is a new and unique Apple-designed flash memory storage system.

    But one where upgrades could theoretically cost a bit less than normal, since replacement flash boards won’t require SSD controllers (assuming that custom Apple chip isn’t too horribly expensive to reverse engineer, of course).

    shamino -

    Yes, not a NVMe/PCIe SSD drive! Just the raw flash chips in a frame. The data width is kinda narrow as well…

    Still a very different design than the Function Key MacBook 13” SSD https://d3nevzfk7ii3be.cloudfront.net/ig... It’s design appeared to be a wider PCIe bus (x8).

    So the question is how wide is the I/O here as that will be the limitation of how big the flash unit could be besides the limitation in the physical size. Why would Apple go with such a small footprint unit? At least make the space larger so in the future a larger unit could be put in. There’s doesn’t appear to be space to put a larger unit in

    Dan -

    Here’s an example of a similar device “Linus TechTips: DIY SSD made of SD Cards!”: https://www.youtube.com/watch?v=3frnBoqq...

    Here it’s using SD cards with a SATA controller. In the case of Apple they are using a PCIe interface via the T2

    Dan -

    To gain speed beyond what other NVMe/PCIe SSD’s can offer, Apple interleaves across the two flash modules. Think how RAM is interleaved https://en.wikipedia.org/wiki/Interleave... Apple is using the same technique here.

    Dan -

    Any idea if that flash is MLC or TLC?

    Anton Akusok -

  9. 6FUYDMViECDTgwBg
    6FUYDMViECDTgwBg
    dyIJjHxT2fwChaLN
    RGMMTBiWfieramQ3

    • Willst du wissen, was sich unter diesem riesigen Kühlkörper verbirgt? Wir auch. Nachdem wir noch ein paar Torx-Schrauben weg gewirbelt und die Befestigungsfedern beiseite geworfen haben, haben wir eine Antwort:

    • Eine GPU, die leider BGA-gelötet ist. Und auf der gegenüberliegenden Seite ein Xeon-Prozessor der Workstation-Klasse – nicht verlötet.

    • Es ist noch zu früh, um zu sagen, wie machbar ein CPU-Upgrade sein könnte – der Chip scheint von Intel speziell für Apple entwickelt worden zu sein. Aber Upgrades scheinen zumindest theoretisch möglich.

    • Es wäre schön, wenn deine 5.000-Dollar-Workstation von Zeit zu Zeit ein Upgrade erhalten könnte, anstatt einen vollständigen Ersatz ... oder?

    Need safety glasses to protect your eyes from the flung screws ;-} Don’t loose them!

    Dan -

    What socket type is the Xeon CPU? Does it have an integrated heat spreader?

    Jeremy Agostino -

  10. GgYCrN5TaLObwIqB
    GgYCrN5TaLObwIqB
    W3mK5hwyK4cIPVqC

    • Wir haben die Platine geleert, und es ist Zeit für einen Überblick über das Silizium:

    • Intel Xeon W-2140B (Skylake, 14 nm – wahrscheinlich ein untertakteter W-2145, um die Temperaturen unter Kontrolle zu halten), 3,2-GHz-CPU mit Turbo Boost bis zu 4,2 GHz, gepaart mit etwas, das durchaus ein Standard-LGA-2066-Sockel sein könnte

    • AMD S5J68 1747 GPEW0333S3 SS63HBN181747US40104 Radeon Pro Vega 56 GPU mit integriertem 8 GB HBM2-Speicher (im Lieferumfang enthalten)

    • Intel X723D733 E1 05780 (SR3PV?) - wahrscheinlich Plattform-Controller-Hub

    • AQUANTIA AQtionAQC107-B1-C PCIe-zu-Multi-Gigabit-Ethernet-Controller

    • Pericom Semiconductors PI3PCIE3412AZHE PCIE 3.0 Mux/Demux-Schalter

    • Apple/Universal Scientific Industrial (USI) 339S00428 00012021 Wi-Fi/Bluetooth-Modul

    • Genesys Logic GL3227A SD 4.0-Speicherkartencontroller und Texas Instruments LP8565A13 (wahrscheinlich LED-Hintergrundbeleuchtungstreiber)

    The Platform controller hub- if it’s the same one as other LGA2066 motherboards- I would be willing to try another LGA2066 processor if everything else checked out. Luckily I use PC which is fully upgradable.

    George A. -

    Someone can use the board to built a super laptop. It has everything on 2 pcb. It is not even that big.

    Vic Lau -

    ooh nice, is there a photo with the RAM and CPU populated?

    (okay maybe not the CPU, that one’s easy to photoshop in)

    srnblu -

    FoxCon assemblers are over doing the thermal paste on the GPU’s! Getting it all over the caps! I hope it’s not conductive paste!

    Dan -

    Dan- all GPUs have way more thermal compound than needed because they don’t have an integrated heat spreader like the xeon shown earlier. It helps to cool them and conductive thermal compound isn’t used.

    Calvin H -

    An interesting question here related to T2 and the SSDs is why they have the Pericom PCIe mux. It seems from the earlier section that the SSD assemblies are raw flash enclosures, or perhaps at most a custom Apple chip doing Toggle to Flash and PCIe out to the T2. One possibility is that the mux allows for one SSD slot to be unpopulated— if it is empty, the mux configues 2x the PCIe lanes to the T2 from the one populated slot. Another possibility is that mux can re-route the SSDs to the Intel PCH bypassing the T2 under some circumstances. It would be interesting to follow the traces and get the block diagram of the PCH, T2, Pericom mux, and SSDs.

    Mike Shapiro -

    Mike, The Pericom PCIe switch is more likely for the USB-C ports

    Dan -

    imac pro 不是万兆网卡么 千兆芯片什么鬼

    张良春 -

    原文为PCIe to multi-gigabit ethernet controller，更正为PCIe至多千兆位以太网控制器。感谢指正！

    Charles Wang -

    More specs on xeon W-2140B microprocessor:

    https://en.wikichip.org/wiki/intel/xeon_...

    irvbromberg -

    is the chipset c422?

    Aida Delmiro -

    The coin battery in this model is a BR2450A

    Dan -

  11. J4B6MABZ1BoRlsjL
    J4B6MABZ1BoRlsjL
    EyGv2MuT2aGgE2KN

    • Rückseite:

    • Cirrus Logic CS42L83 Audio/DAC

    • 3x Infineon (ehemals Primarion) PXE1110CDM und PXE1610CDN Mehrphasen-Digitalcontroller

    • 2x Intel JHL6540 Thunderbolt 3-Controller

    • International Rectifiers IR35217 Endstufenregler

    • Serieller CMOS-Flash-Speicher Macronix MCIC MX25L4006EZNI

    • NXP PCAL6524 I/O-Expander

    • 4x Texas Instruments TAS5764L Audioverstärker

    Should be Cirrus Logic CS42L83 audio/DAC

    Sean Davis -

    How about an explanation for what a `PXE1110CDM 1YUS7Q84 H1746 8F4 PMC005` is?

    michaelmiller -

    It is the “Digital DC-DC Multiphase Controller” solution from infineon.

    https://www.infineon.com/cms/en/product/...

    JJ Wu -

    What is the silkscreen marking on the 2 devices (speaker drivers) at the bottom left corner of the PCB?

    Bito Zapata -

  12. XBTmDOvQckxk2Ret
    XBTmDOvQckxk2Ret
    rfh6qOxsLWInTGKc

    • Zu guter Letzt haben wir in der Nähe der SSD-Steckplätze zwei benutzerdefinierte Apple-Chips:

    • Apple T2 339S00467 über SK Hynix H9HKNNNBRUMUVR-NLH LPDDR4 geschichtet

    • Apple 338S00268 – dieser Chip ist ein bisschen mysteriös. In unserer anfänglichen Aufregung dachten wir, es sei der gemunkelte A10 Fusion Coprozessor, der erstmals im iPhone 7 zu sehen war, aber die Gehäusegröße ist zu klein (ungefähr 7,4 mm auf jeder Seite). Beste Vermutung: Dies ist ein Power-Management-IC von Apple/Dialog Semi.

    • Als Nachfolger des 2016 vorgestellten T1-Chips des MacBook Pro mit Touch Bar übernimmt der T2 hier alle Funktionen der SMC, Bildsignalverarbeitung für die Kamera, Audiosteuerung und SSD-Controller sowie Secure Enclave und eine Hardwareverschlüsselung Motor. Puh!

    • Der Nachteil all dieser zusätzlichen Funktionalität und Sicherheit ist ein großes Problem, wenn dein iMac Pro jemals wiederhergestellt werden muss.

    I believe it to be an i/o bus.

    Antonio Corcella -

    Shouldn’t the T2 be what was rumored as A10 (iBridge)?

    MrUNIMOG -

  13. 1adCoVYIkENkKcWC
    1adCoVYIkENkKcWC
    vlfUtxl2NLo2SHNt
    R3IgSJ2VHcXNNLp5

    • Wenn das Logic Board aus dem Weg ist, können wir das 500-Watt-Netzteil herausziehen.

    • Hergestellt von AcBel Polytech Inc., akzeptiert 100-240 Volt Wechselstrom und enthält selbst etwas Silizium:

    • STMicroelectronics STD4N80K5 3 A N-Kanal-MOSFET

    • STMicroelectronics L6599A Hochspannungs-Resonanzcontroller

    • Strommodus-Controller NCP1336B von ON Semiconductor

    • Diodes Incorporated AP4310A dualer operationeller Verstärker mit Spannungsreferenz

    • ON Semiconductor NCP1631 2-Phasen-Leistungsfaktorregler

    • Diodes Incorporated https://www.diodes.com/part/view/AP2125 300 mA LDO-Regler

    The unit has two power feeds one is clearly marked as 12Volts Is the other also 12Volts?

    Dan -

    You guys should let people know not to touch the circuitry of the AC/DC PSU. There is danger in touching certain parts of the internals of PC AC/DC PSUs, even if the PSU has been left alone for a long time the capacitors could still be holding charge. Not only are you showing people how to access the PSU, but you aren’t letting them know to be extremely cautious about handling it.

    Steve -

    You’re right about the dangers, and as stated in the banner at the top, this isn’t meant to be used as a guide. There are no instructions here and hence no guidance on what to do or not do. iFixit teardowns are a first look at the hardware and construction highlights, nothing more.

    Jeff Suovanen -

  14. j2bqE1bKGXnkN1OG
    j2bqE1bKGXnkN1OG
    mcyi1oMXJsOPPXVG

    • Die Hülle dieses iMac sieht ein bisschen kahl aus, aber wir sind noch nicht fertig: Die "erweiterten Stereolautsprecher" sind als nächstes dran.

    • Frühe Berichte besagen, dass diese Lautsprecher dem Hype gerecht werden: Sie sind die am besten klingenden Lautsprecher, die du für einen Mac bekommen kannst.

    • … bis du, wie wir vermuten, es mit einem Homepod koppeln kannst - was das gesamte Erlebnis auf die nächste Stufe heben sollte. Wir werden es nicht sicher wissen, bis der Homepod irgendwann im Jahr 2018 endlich in die Regale kommt. (Ist es nur Zufall, dass er ein bisschen wie ein Mac Pro aussieht?)

  15. kGOIKNaZYGJHTVC4
    kGOIKNaZYGJHTVC4
    I21sjvUDla31GJEe
    2NTc3TyY53sHnWZF

    • Wir haben dieses Gehäuse nach Teilen durchforstet, und es ist nicht viel übrig geblieben – außer dem unverschämt beeindruckenden federbelasteten Scharnier-Mechanismus, der das Display trägt.

    • Wenn du dich für das VESA-Mount-Adapter-Kit von Apple entscheidest, kannst du dir einen seltenen Moment der von Apple genehmigten Demontage deines iMac Pro gönnen: Durch das Einsetzen einer Karte in die Rückseite wird die Feder gelöst und die Reihe von Torx-Schrauben enthüllt, die den Ständer sichern.

    • Dies ist wahrscheinlich das einzige Mal, dass Apple dir einen Schraubendreher verkauft und dir sagt, dass du es machen kannst.

    • Wenn du dies liest, besteht natürlich eine gute Chance, dass du bereits vollständig vorbereitetbist.

    The older 2011 iMac design foot is back!! Thank You Apple!!

    Now people can pack their systems in a much smaller hard case when they need to travel with it! Or change their mind between the foot and a VESA mount going either way!

    Dan -

    Can you use that adapter for an iMac 21.5” (2017) too?

    Alfred Hansen -

    Sorry Guy the hinge part is internal which would need to be replaced to the other version.

    Dan -

    I wonder if you can order this spring mechanism as a replacement part and put it into a normal 5k 27” iMac

    magnuskleditzsch -

    Knowing Apple I doubt it mechanically fits! We’ll need wait until we see the parts listing for the system

    FYI: The current foot/VESA mounts for the 21.5 or 27” Thin Mac’s are dedicated. They are not user interchangeable like the iMac Pro!

    Dan -

  16. fXBQyBJqKklKw1OL
    fXBQyBJqKklKw1OL
    NfRZiJuoBLwTQoYC
    3JuAKyMqHQlALTxT

    • Zeit, sich dieses Display genauer anzusehen. Es stellt sich heraus, dass es dasselbe Display-Panel verwendet, das wir im iMac 5K gefunden haben: LG Display-Modell LM270QQ1.

    • Allerdings wurden die Verkabelung und die Webcam-Hardware verschoben, sodass du die Displays nicht zwischen den Modellen austauschen kannst.

    • Wir lösen den langen Abschirmstreifen entlang der Unterseite ab, um die Chips freizulegen:

    • Texas Instruments NH245 8-Bit Bus-Transceiver mit doppelter Versorgung

    • Texas Instruments BUF16821 Programmierbarer Gamma-Spannungsgenerator und Vcom-Kalibrator

    • Parade Technologies DP665 LCD Timing-Controller

    • Texas Instruments TPS54320 Synchroner 3-A-Abwärts-SWIFT™-Wandler

    • Texas Instruments TPS65168 Hochauflösender, vollständig programmierbarer LCD-Vorspannungs-IC für Fernseher.

  17. 41qIqtkSya46wgvl

    • Das war's, Leute. Zeit, dieses Biest mit etwas frischer Wärmeleitpaste wieder zusammen zubauen und zu sehen, wie es sich als Gaming-Setup schlägt.

    • Nur für den Fall, dass du dich fragst: Ja, es ging wieder gut zusammen. Wir haben bald eine Schritt-für-Schritt-Upgrade-Anleitung für dich!

  18. 3lMaOEfLOR5BKZNf

    • iMac Pro reparierbarkeits-Score: 3 von 10 (10 ist am einfachsten zu reparieren)

    • Der Arbeitsspeicher und die CPU sind beide modular, was bedeutet, dass Reparaturen und Upgrades problemlos möglich sind – ungeachtet dessen, was Apple dir sagt.

    • Die Dual-SSDs sind modular, aber von Apple maßgeschneidert, was den Austausch erschwert.

    • Das Klebeband zum Öffnen des iMac zu durchschneiden ist nicht allzu schwer (mit den richtigen Werkzeugen), aber es muss dann ersetzt werden, um eine Reparatur abzuschließen.

    • Wichtige austauschbare Komponenten sind hinter der Hauptplatine vergraben und erfordern eine Menge Demontage für den Zugang.

    • Der Wegfall der Zugangsklappe zum externen RAM macht Upgrades im Vergleich zum 27" iMac 5K wesentlich komplizierter.

    • Die GPU ist BGA-gelötet – möglicherweise ein großer Nachteil auf einer „Profi“-Workstation. Es sind keine einfachen Grafik-Upgrades möglich, also wähle deine Konfiguration mit Bedacht aus.

Tinte & Feder

Jeff Suovanen

Mitglied seit: 06/08/13

407156 Reputation

101 Kommentare

OOH FIRST COMMENT! either way, Apples getting closer and closer to the point where a mac will literally be one single part that will not be modular in any way. Apple says they save the environment as much as possible while sweeping the fact that they make their machines as hard to fix as possible under the carpet.

Aiden -

Wow you got here first!

Padraic Hoselton -

Apple bounces back and forth between more and less modularity with most new architectures. Claiming that there is some obvious trend here is silly and baseless.

Mark -

This comment aged like fine wine with the launch of the M1-based iMacs.

Ethan Zuo -

Liquid cooling? SSD in RAID 0?

Peter Gamble -

It’s one SSD controller on two sticks of dumb NAND, no need for a RAID.

tipoo -

Liquid cooling requires a quite grand radiator/pump ! So NO this wont be possible in this very tightly packed overheated ALL-IN-ONE-MAC(PC)!

Animarkzero ‍ ‎‎ -

What does the SSD shows at “Apple - About This Mac - System Report - Hardware - Storage?

Peter Gamble -

The SSDs are hardware-encrypted by the T2. If the drive(s) are removed, the data is unreadable.

TheIronGiant -

The modules are just Raw Flash it’s not a real SSD

Dan -

@Peter Gamble, probably a special controller on those things, because they didn’t find a controller for the SSD’s on the logic board.

“Conspicuously absent here is any sign of an SSD controller. More on that in a minute. “

“ The successor to the T1 chip introduced in 2016's MacBook Pro with Touch Bar, the T2 is tasked here with all the functions of the SMC, image signal processing for the camera, audio control, and SSD controller, and Secure Enclave, and a hardware encryption engine. Whew! “

Meaning that the T1 is controlling how the SSD’s send and receive data and the SSD’s are designed to work with the T1. Mind you that the T1 is an arm based co processor (if I’m not mistaken). They’ll probably do some testing but I would bet that they are not being controlled by an AHCI spec.

Nathan Lanier -

No iMac Pros were harmed in the making of this teardown. :)

Gigabit87898 -

I will wait for Mac Pro to come out before I pull the trigger on any of these beasts.

Rae -

First teardown 2018! iFixit Lives!

George A. -

Each stick of NAND not having an SSD controller validates what I was thinking. Since the T2 houses the SSD controller, calling this a RAID isn't quite right, since each drive doesn't have a controller, it's just one controller looking in two places.

tipoo -

Think of it more like a bank of RAM. Each operation is bounced between the two modules (inter-leaved)

Dan -

The DIMMs (PC4-2666V-RD1-11) are not DDR4 ECC (Unbufferd) RAM, but DDR4 ECC-Registered ones.

M_Isobe -

Correct! I think George was joking.

Dan -

Beautiful Teardown.

Tim Asp -

I really want a iMac Pro but 21” Screen.

K Sec -

“It’s one SSD controller on two sticks of dumb NAND, no need for a RAID”.

Really? Do you mean that the iMac Pro has 2.8 GB/s read & 3.3 GB/s write without RAID 0? Why not use then a single SSD blade-stick instead if two?

Peter Gamble -

Think of it more like a bank of RAM. Each operation is bounced between the two modules (inter-leaved)

Dan -

Shouldn’t be much of a surprise that there’s no need for Raid 0 since standard iMac and MacBook Pro have similar Flash speeds also with a single SSD.

MrUNIMOG -

dgramatzki - The speed is much faster for both read & write on the iMac Pro’s SSD setup than what the MacBook Pro’s offer.

Dan -

Is the SSD encryption mandatory? Can it be turned off or disabled? Thanks.

Peter Gamble -

Is the SSD paired to logic board? If the logic board fails, can the data in SSD be recovered? Thanks.

Peter Gamble -

Is it possible to run Windows 10 via Bootcamp on it?

Hjalti á Lava -

Don’t see why not!

Liam Powell -

Hi!

Maybe instead of teardown the whole iMac it would be easier to cut holes in the back around RAM?

Jaromir Kopp -

I hope you’re kidding!

Dan -

Himm no A10 ARM CPU? Where the rumors false?

Skater Stimm -

No iPhone APU, but the T2 chip does have a micro-controller (SMC) and also deals with encryption both functions could be run on an ARM based solution.

Dan -

The T2 might have some similarities to the A10, just as the T1 had to the Apple Watch SiPs. Perhaps that’s where the rumors came from.

MrUNIMOG -

It is so beautiful …Just black, from motherboard to RAM,from fans to speaker

iliya -

Try to repair on a Black PCB….. nice eyestrain!

Animarkzero ‍ ‎‎ -

“With all that glass out of the way, we have a perfect view of the iMac Pro's pristine interior. Say, wouldn't this make a lovely wallpaper for someone?”

So do you have this pic in 5k? Or hopefully bigger to be able to crop it to 1:1.

ymppa -

2 things. First off, did you guys really not think to try and replace the CPU with a standard Xeon part? Second, has anyone documented the installation of the VESA mount?

Andrew spoelstra -

If you look at the VESA mount instructions that came with the Apple VESA mount for the iMac 27” 2011 its the exact same part! Apple was roasted on switching out to a fixed foot or fixed VESA mount. It took awhile!

But, I’m thinking if people really need it, one could upgrade their older 27” 2012 > 2017 models using the same parts this model has as it looks like the same mount points. Will need to double check to be sure,

Dan -

Really nothing is “Pro” in this design. Apple learned nothing. They want to continue to sell their super proprietary nonsense hardware. As a pro, you expect easy exchangeable, compatible components, like RAM, CPU, GPU, harddrives, and PCIe-slots, 2 x 16x, etc. In the highest available standards. The new Mac”Pro” just is the new regular iMac. I bet the upcoming MacPro will be a total disaster.

interference -

“Pro” is not a universal term. For some users, this Mac will be great. For others, not so much. What you want and need isn’t what everyone else wants and needs.

Dongboat -

The numbers tell us it’s a more powerful box than anything Apple has produced so far. So from that perspective it’s a Pro box.

As to being the kind of box a Pro would own that gets into what his/her needs are. This system will serve many pro level user.

It still may not meet the real heavy weight users and clearly it’s a closed system with limited upgradability. That’s where the Mac Pro will be the true expandable system.

I’m hoping we see the AMD ThreadRipper CPU in it! Heavy weight pro’s need lots of threads and PCIe lanes, which is were the ThreadRipper shines!

Dan -

@DAN Threadripper has a TDP of 180W !!

How in the world do you think this will end with the Mac Pro(sumer) if Apple is not willing to cool the Xeon W in the iMac Pro properly!

Animarkzero ‍ ‎‎ -

Glad you guys got it back together! I’d hate to lose a $5K machine for no good reason :/

Liam Powell -

It’s okay if it’s in the name of SCIENCE!

Kevin Stuckey -

I am curious about the SSD. I don’t like the idea of RAID-0 in a “pro” machine. Double the chance of failure, and a failure of one drive means loss of data on both. I am hoping it can be configured as two separate drives, so I can have half a TB for macOS, and half a TB for Bootcamp/Windows10/Autodesk bloatware like Revit. Curious how the inscription works in Bootcamp too. Does it require some special Windows driver for the T2 SSD controller? Mine arrived today, 2 days early, but I have no time to do more than open the brown box. Which was a mistake, because now I get to look at the picture on the inner box for three days before I can actually set it up. The agony. ;)

Also curious how soon someone with a maxed out machine breaks the screen, writes the whole thing off, and “upgrade CPU and SSD” parts are available second hand. I would assume you could even replace the MB this way to upgrade the GPU as well. It will be a niche market in a niche market, but it WILL be a market.

Gordon Price -

Please, let is know if you can configure it as two separate SSD.

Peter Gamble -

You could already open another box while writing this.. :D

Igor Leskovar -

It’s not a RAID’ed drive but something similar! Think of it like how RAM inter-leaving works this is who Apple is doing it. Inter-leaving the operations across the two SSD' sets.

As for RAID the type of RAID makes a big difference! As well as what the drives are. Here using SSD’s it’s a lot more reliable than a spinning disk HDD. So if this was a RAID 0 drive I wouldn’t have a problem with it. Then there is Apple’s new file system! Which offers a better write operation so data loss is less likely. We have some large RAID 0 drive sets (all SSD’s) and they are very dependable. Our HDD RAID sets are all RAID 5 and we sync them in pairs to make sure we don’t loose anything.

Frankly, the dependability of your power will be a bigger risk! I hope you have a good back-filling UPS for your new system.

Dan -

Mini U.2 PCIe NVME SSD?

Phy Belong -

Nope something new! Raw flash inter-leaved. The T2 chip manages the read/write to the modules. If you remember back in the original IBM PC day we press fitted DIP memory into sockets on the logic board. At one point we had stacked chips soldered onto each other! This is in the same approach Apple is using, just within Flash.

Dan -

Here’s a good image of these old stacked chips: https://eda360insider.files.wordpress.co...

Dan -

It is a bit sad to make a ‘PRO’ machine with an underclocked XEON to keep the temps in check.

Form over function rules at Apple

reuze -

Why do you say that?

Sure the server based chips run faster but at a cost, more power is needed and heat created. The Workstation class chips make sense.

The real question is when does it throttle (load wise). If it doesn’t then Apple has found the sweet spot for this design. So we’ll need to wait for the results from people testing it out.

Sure, I think a lot of people are waiting for the other shoe to drop, the specs of the new Mac Pro!

Dan -

Um, why? How would this be any different than if they had used an overclocked version of a slower chip? The speed is what it is, carefully balanced with other system hardware.

Mark -

“Think of it more like a bank of RAM. Each operation is bounced between the two modules (inter-leaved)”.

Then it is equivalent to RAID 0 in relation to data protection: if one SSD fails, all is lost. Or if the controller chip fails. Or if the main board fails in this case, since the SSD is paired with it. You cannot take the SSD out for troubleshooting or data recovery or booting in other Mac.

Peter Gamble -

This is no different than with a single-board SSD, not more points of failure than that. This isn’t hard drives where each HDD adds a spinning disk and doubles the risk of failure.

MrUNIMOG -

@dgramatzki

I see a big difference. If data is stripped between two SSD, it is like RAID 0 for data protection by definition.

Peter Gamble -

The data isn’t striped. As already alluded to, that implies to separate controllers on two separate drives. This is one controller accessing chips on two separate boards. As the previous poster pointed out, this would be no different that putting all the chips on a single board, just less flexible in terms of space. which is at a premium inside this enclosure.

Mark -

@mark

You said: "The data isn’t striped. As already alluded to, that implies to separate controllers on two separate drives. This is one controller accessing chips on two separate boards. As the previous poster pointed out, this would be no different that putting all the chips on a single board, just less flexible in terms of space. which is at a premium inside this enclosure”.

Data not stripped on SSD? Do you have a proof of that? How can it achieve 3.3GB/s write and 2.8GB/s read without RAID 0 ?

Anyway, even if data is not striped, do you mean that if one SSD fails, data can be recovered on the other? If not, it is like RAID 0 in relation to data protection.

Peter Gamble -

Interleaved flash is not the same as RAID!

There is no recovery with RAID 0, you’re thinking RAID 1 (mirroring). There is very little risk here, HDD’s are much more prone to failure than SSD’s. In any case you should have a current backup.

Dan -

Miss the “old” Mac Pro 2008-2012. Think what this mac could have been with updated hardware.

I think that Apple does not love companies and "pro". Definitively.

It's like Apple said << Long life to assembled PCs >>. OK. I will buy an assembled PC.

The Outsider -

All you complainers seem not to have heard that there’s a new Mac Pro coming out some time in the future, explicitly announced by Apple to be modular and upgradeable?

MrUNIMOG -

(i am replying to ‘dgramatzki’ … )

‘The Outsider’ is talking about a beautiful modular design of more than a decade ago…

Since then nothing really happened until that round one came in 2013…

Apple is now so briljant to reinvent a modular system …. again in …. 2018?

yes there is enough to complain…

reuze -

What iMac from a decade ago had a “beautiful, modular design”?

Mark -

Thanks so much for the breakdown. Was worth reading and looking at all of the images and comments..

rickgarcia -

Can’t imagine those two heat pipes having much cooling capacity. That thing is gonna overheat like a MAC mini.

Randy -

Can’t imagine a pair of heat pipes having enough cooling capacity. Just have a feeling this will overheat like a MAC mini. Why don’t they ever employ some kind of self contained liquid cooler?

Randy -

The old Mac pros had “self contained liquid cooler”.

https://everymac.com/images/other_images...

Christoffer Rasmussen -

Those liquid-cooled Power Mac G5 models were a nightmare. The design put the cooler right over the 1000W power supply. Then the liquid cooler started to leak. This shorted out the power supply, often killing the entire machine. Apple had a replacement program in place that if any sign of leakage was detected, they would replace the entire unit whether the customer wanted to or not. The best part was this was in the middle of the transition from PPC to Intel, so most of the customers’ pro applications were useless on the Intel Mac Pro. It was a total disaster. Liquid cooling is not a good idea in a computer case this small with a power supply this small.

Travis Funk -

As a holdout waiting for a replacement for my 2010 Mac Pro Tower I’m saddened that this all in one because I’ve have iMacs sitting in boxes because the screens were cooked along with some of the internals. My Tower has gone through 3 monitors over the years that I cheaply replaced.

wahakaa -

Uh, every one of those iMacs can be repaired. What site are you on again?

Mark -

Great teardown and review.

In summary:

- One can upgrade RAM later on - saving a lot of $$ up-front. I got mine w/ 64GB - which should suffice until then.

- GPU does not matter, this one is “good enough” to be considered Pro workstation. Nothing stops one from adding another GPU via Thunderbolt 3 to PCI-e making it actually quite upgradeable (prosumers of this type of device already have a ton of storage via Thunderbolt on their desk, adding another box w/ a GPU is not a big deal)

- CPU is actually upgradeable. Sure, someone’s yet to test this but I am 99.9999% certain this is the case, so down the line in 2-3 years, pop it open, add a new-er xeon in and voila.

All in all - awesome machine. It actually replaced my whole VMware LAB, as I can now run it all on this iMac, in Fusion.

Petar Smilajkov -

Just looking at the CPU speeds on the Apple site. As mentioned here, the 8 core is not the same part available to anyone from intel. It is slower. The 10 core is also slower. But the 14 and 18 core chips Apple use match the speed of what intel has on their site. The faster 8 and 10 as well as the same speed 14 and 18 all run at the same 140 Watt Total Design Power. Thus Apple may not be using the lower speed 8 and 10 core to save on heat. Apple likely has to deal with the 140W TDP of the 14 and 18.

Perhaps Apple are saving money by buying the 8/10 core chips from intel that don’t pass the first test?

Kemal NottaTurk -

It would seem that way, until you consider the cache sizes.

Apple has a much bigger L3 caches than Intel offers in their Xeon Ws.

Aweizd Zsakul -

Thanks guys, What a wonderful teardown of the iMac Pro 2018. The pictures and the read was spot on and surely worth the time spent. I appreciate now, knowing what I buy, before I put down the money, and my late 2011 27” iMac needs a new partner this year.

I have planned to upgrade the memory and the SSD, but it is for sure a much greater job than upgrading the 2011 iMac. Armed with the ifixit teardown it’s time to prepare the action.

Steen Ricks Olsen -

500W is far too little to host a full-fledged Xeon W and a Vega 56. I think Apple relies on thermal throttling and underclocking so performance doesn’t get “too high”. How will it ever support 18 FRICKIN’ CORES and a VEGA 64?!

Ethan Zuo -

Do you know what type of Wi-Fi/Bluetooth chipset iMac Pro using?

Chen Lei -

Hi, the display is definitely different than the Late 2014/2015 iMac. In that teardown, you posted an image of the model number/serial number sticker from the display. It would be much appreciated if you did the same for the iMac Pro.

Kris -

@knyc Sure thing! Here you go.

Jeff Suovanen -

Thank you Jeff, I don’t suppose you guys know where to find a spec sheet for this panel? I’m trying to understand the differences in the backlight technology between this one and the one from the 2014 model.

Kris -

Unfortunately no, I haven’t seen a spec sheet anywhere as yet. There are a few prior revisions listed on public sites like Panelook, but they don’t include the iMac Pro panel… so far.

Jeff Suovanen -

Hi

What's the specifications of the motherboard of the iMac

Ntuthuko Zimu -

In this configuration (motherboard to be vertical once re-assembled), would liquid metal thermal “paste” accumulate and drip down to other parts of the motherboard over time due to constant heat and gravity?

Benjamin Chen -

Would have been nice to see more info on the display, just googling LG LM270QQ1 brings up -SDA2, -SDB1, -SDC1, etc.

Jake Snyder -

See the first link in Step 16—the panel is labeled LM270QQ1 (SD)(D1).

Jeff Suovanen -

Technically, you could add multiple external GPUs for upgrades through the thunderbolt 3 ports

Lucas 9810 -

I think Time Machine renders all of these arguments about RAID 0 and interleaving flash modules moot. For ~$100 I can have a living copy of my data that can easily be recovered to another Mac, or simply browsed by another Mac or PC with little effort. I leave a 4TB drive hanging off of my iMac 5k at all times for very little cost to me. The backup drive and the iMac are on their own over-sized UPS. All of that cost me about an extra $250. Why are you all worried about data recovery when some simple backup discipline would solve all of those problems. If you’re really a “Pro” it seems to me that you should have multiple contingencies around data loss and in the unlikely event of flash failure, you’d be fine.

Travis Funk -

¡Excelente, solo recomendaría el uso de pulsera anti-estatica o guantes anti-estaticos, por lo demás muy buena guía, gracias!

David Molina -

Hola buen día, gracias David por tus comentarios estamos a la orden, saludos

Miguel -

make a guide for a screen replacement!!

Drake -

@dragonboy5499 Hopefully we’ll have a proper guide for that eventually, but for now, the iMac 5K Display Replacement Guide should get you by—other than a slightly different cable arrangement, the procedure is identical. Have fun! :)

Jeff Suovanen -

Does anyone know where iMac pro screens can be purchased??

Matthew Klein -

I’m confused: about the RAM you wrote: 288-pin DDR4 ECC RAM. But if i follow the link to the upgrade kitcthe ram modules are labeled 260pin. so what is correct?

thorsten.binnewies -

can I replace mount for vesa to imac 27 2017 ?

I have got Imac 27 2017 - but I want VESA to mount for this mac. Once i did fully resemble this machine -if i find stand from imac pro or previous imac -with supporting stand for vesa is it possible?

Oleg pikulev -

Will you post an instruction how to reattach the display after removing the glue stripe with the pizza cutter ?

Felix Stark -

Anyone know if the FaceTime HD 1080p Camera on the iMac Pro is available as a spare part?

Toying with the idea of installing it into an older iMac. (If it’s compatible.)

Muhammad Siddiq Chughtai -

Did you ever find one? Please respond https://www.reddit.com/r/mac/comments/st... here we need the help!

oneiphonedoctor -

I want to upgrade the CPU inside my iMac Pro but I don’t have enough courage to open it up lol.

Master Creeper -

I believe that t2 chip is nick named the death chip and will be soon removed and getting integrated with the cpu

Stephen Hall -

My webcam doesn’t work after a screen replacement! PLEASE HELP!

oneiphonedoctor -

i really enjoy reading your blog!

<a href="https://crack-patch.net/imageranger-pro-...>imageranger-pro-edition</a>

<a href="https://crack-patch.net/logic-pro-x-crac...>logic-pro-x</a>

Dean Thomas -