eMac Motherboard Assembly Replacement

Geschrieben von: Chris Green

Kommentare: 2

Schwierigkeitsgrad

Moderate

Schritte

Zeitaufwand

30 Minuten - 1 Stunde

Einleitung

The eMac motherboard assembly can be separated from the rest of the computer to all access to the hard drive.

Werkzeuge

Schritt 1

It should be noted that these guides are written based on a late-model eMac (2005, 1.42GHz, DDR). They will differ slightly from the older model eMacs that use PC-133 RAM.
Lay the eMac screen-down on a flat surface. I've found it convenient to use a carpeted floor because the computer is so heavy.
Remove the single phillips #2 screw on the RAM door, and remove the door
The screw is captive in the door, so don't worry about losing it.

carpet or towel is the way to go. don’t put on bare hardwood floor or table as you may scratch it

Duck -

Schritt 2

Before starting this process it's important to note that the eMac can have some seriously dangerous voltages inside of it, thanks to the CRT display. Before working on an eMac, you should unplug it, press the power button to clear any stored charge on the motherboard, and then let it sit for 24-hours (or more) to allow the CRT to discharge.
You can read more about CRT safety procedures here. If you aren't experienced with working on devices featuring a CRT, it's recommended that you don't proceed any further.
On the bottom side of the eMac, remove the following screws:
A single 2.5mm hex screw
Two #2 phillips screws

Schritt 3

Remove two 2.5mm hex screws from each of the other sides of the computer.

Schritt 4

Now, the shell can almost be separated from the computer.
There is a cable that connects to the power button. This must be disconnected before removing the housing completely.
Lift the housing enough to allow you to fit your hand through the access door, and disconnect the cable at the power button.

What happens if you pull the shell off before does couldn’t connecting the power button and completely rip the wires right out of the quick connect,, well that’s exactly what I did and I need to know how to fix it please thank you

Kolby Hughston -

Schritt 5

Now the entire shell can be removed from the computer.

Schritt 6

The motherboard access panel is held on by 4 phillips #2 screws.
Remove the screws, then use your fingers to pull on the top tabs to separate the panel from the computer frame.

Schritt 7

To remove the fan assembly, several cables must be disconnected first:
3-pin fan cable
Ground wire, requires phillips #2 screwdriver
2-pin AC cable to power supply

Schritt 8

Now remove the following screws securing the fan assembly:
3x coarse thread phillips #2
1x machine thread phillips #2

Schritt 9

There may be a zip tie holding another cable to the fan assembly, cut it to remove the fan assembly.

Schritt 10

You should now be able to remove the fan assembly.
Doing this will expose more of the CRT neck, be careful not to touch this area because it can contain high voltages (and is fragile)

Schritt 11

There are four connectors at the bottom of the motherboard that must be removed.

Schritt 12

There is a large display connector that must be removed. This can be done by squeezing the tabs and pulling.

Schritt 13

The power button cable may be tucked in the casing, you will need to un-tuck it.

Schritt 14

There are several phillips #2 screws that hold the eMac motherboard assembly to the rest of the computer. They will all need to be removed.
2 large ones near the drive bay door.
7 smaller ones scattered around