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iMac G5 Repair Questions?

R

rollobancher

macrumors member
Original poster
Feb 26, 2004
36
0
Cali
Hello Forum,

I just received an iMac G5 17" 1.8 Ghz from a friend which I need to repair, and I got a couple of questions. First, the iMac does not turn on; when I press the power button I get no response (I know that the power cable is OK). How do I know if this issue is related to the Power Supply or the Logic Board? I have a Power Supply from a PC (I believe it is 300 - 450 W), can I try this Power Supply with the iMac to rule out the Logic Board?

If not, what are other test that I can do to rule each piece of hardware out until I find the cause?

Thanks in advance for the support guys and gals! ;)

Joel

Edit: I have noticed online that there may be a recall, anyone have any more information on this?

http://macosx.com/forums/hardware-peripherals/37548-apple-g5-power-supply-recall.html
 
rollobancher said:
First, the iMac does not turn on
Click to expand...

Any sounds from the internal cooling fans? If not, then your likely culprit is the power supply.

I have a Power Supply from a PC (I believe it is 300 - 450 W), can I try this Power Supply with the iMac to rule out the Logic Board?
Click to expand...

No, the iMac does not use the PC standard power supply - motherboard connectors. Unless you wanted to rewire the power supply, it's not going to happen.

If not, what are other test that I can do to rule each piece of hardware out until I find the cause?
Click to expand...

Just as with a PC, you'll need a volt/multi-meter to test for DC voltage from the power supply. If it's not putting out the DCV, then that's the first issue, which doesn't rule out a bad logic board too.
 
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