Do I have to replace my Power Mac G5 logic board if the SMC chip is bad?

Question

Do I have to replace my Power Mac G5 logic board if the SMC chip is bad?

I purchased a used Power Mac G5 (early 2005 model) running Leopard and I am having an issue where it will not go into sleep mode. I took it to an Apple Store genius bar and after running a diagnostic check they told me the SMC chip is bad. The Mac runs fine other than the fact it will not go into sleep mode. Do I have any options besides replacing the logic board?

If I have to replace the logic board do I have to replace it with the same part or do I have the option of upgrading to a newer G5 (late 2005) logic board?

PowerMac, Mac OS X (10.5.8), G5

Posted on Jul 5, 2011 6:52 AM

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Answer 1

Jul 5, 2011 7:30 AM in response to darrinfromelkhart

After doing some research, I found the Power Mac G5 uses an SMU chip, not and SMC chip as I indicated above. The same questions apply, however for the SMU chip in a Power Mac G5.

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Answer 2

BDAqua

Level 10

239,063 points

Jul 5, 2011 10:25 AM in response to darrinfromelkhart

>If I have to replace the logic board do I have to replace it with the same part or do I have the option of upgrading to a newer G5 (late 2005) logic board?

As far as that part goes, you'd have to replace CPUs Grahic card, & Power Supply also.

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Answer 3

japamac

Level 7

24,400 points

Jul 5, 2011 2:55 PM in response to darrinfromelkhart

Do I have any options besides replacing the logic board?

Your only options are either to replace the board or give up on sleep.

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