PowerMac G3 Won't Turn On

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Level 1

8 points

PowerMac G3 Won't Turn On

Recently, I was using my powermac (About 1-2 weeks ago) and I went on vacation. I came back and it won't turn on. Everything's plugged in, and the power buttons and lights on the mobo light up. I can hear the HD spin up, and begin to read. But, I don't get any video. I've read that it could be the battery and so i replaced it, but it still won't turn on. I've reset the CUDA, installed different RAM, took out expansion cards, but it still won't turn on. Also, when I press the power button it immediately shuts off, which it never used to do. I usually have to wait at least 3-4 seconds of holding it down. Any help would be greatly appriciated!

PowerMac G3 (b&w)-OTHER, Mac OS X (10.4.11)

Posted on Apr 2, 2012 10:19 AM

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Answer 1

Jeff

Level 6

12,328 points

Apr 2, 2012 11:27 AM in response to iHack501

Remove the graphics card from the PCI slot and inspect for discoloration along the gold-plated contacts. If there is any, gently clean the contacts with a soft white eraser, blow off any rubber shavings, and reinstall the card. Also, the memory controller doesn't support high-density RAM, so a compatible 256 MB PC-100 or PC-133 SDRAM DIMM must have 16 chips on the card (8 on each side). A compatible 128 MB DIMM must have 8 or 16 chips on the card, but can't have only 4. Additionally, ECC, Registered, and parity memory aren't supported.

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Answer 2

iHack501 Author

Level 1

8 points

Apr 2, 2012 11:32 AM in response to Jeff

The video card contacts aren't discolored, and It's had the same ram (128mb stick that came with it, and a 512mb that's recognised as 256, and they've both been switched out in different variants) They both have 8 on each side, and It worked previously.

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