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Hi,  Following my "classic" and "IIci" failure due to capacitor and battery leak, I went to check my 128k & 512k. As they powers as usual, with sound, bright and crisp screen, is it necessary or recommended to change the caps ? Are they subject to leak as classic and SE30's ?  Does analog...

Hi,  If needed, here's a copy of the PSU pinout .... Regards

Hi,  I have a working 8500 and a WS8550 that wasn't booting. No chime, just fan and hard disc spin. I thought it was the motherboard because of the battery leak, I found a new MB in perfect condition. No luck, same symptoms. It turns to be the processor card. I put the 8500's processor card and...

Hi, I have a lot of old Mac computer here at home, I usually remove the 1/2 AA battery before putting them on storage, but It seems that I forgot this one.  It looks in very bad shape. I start cleaning as much as I can and it start to look better. Can you guys help me resurrecting this computer...

Hi,  As part of resurrecting an old PM8500, can I use the processor card from a 8600/9600 series ? I have one that can act as a donor but it's a 350 Mhz processor. I know the internal bus speed won't go faster, but I wonder if the computer will/must be able to boot with that processor card. ...

Hi,  I've been reading passively this forum for years. But now, I really need to exchange knowledge regarding one of my problem.  I have a PM8500 (WS8550 to be exact), I forgot to remove the battery and that ends with a little corrosion on the motherboard. No startup sound, no video, disks are...