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Recent content by PowerPC

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    Macintosh IIfx motherboard revision A vs B differences.

    Does one revision have an advantage over the other? There are some noticeable differences between the two like all the names printed on revision A and some of the chips are different. Black slot vs white slot differences besides color? 820-0282-A 820-0282-B
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    Macintosh IIfx chime of death, no video

    I recently acquired a Macintosh IIfx. I noticed it has the revision A motherboard with several names printed on it. Rare?  With two good 3.6v batteries, pressing the power button does nothing. If I jumpstart the IIfx it powers on but with the "chime of death". No video on monitor. I have known...
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    Macintosh II and II(f)x

    You can jumpstart the macintosh IIfx by taping two AA together to get 3 volts. Ground the negative aa to case, jump the positive to power supply pin 15 (the far one on the right). It will power up right away, no need for power button. I got my recent macintosh iifx to power on but i get the...
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