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Macintosh Portable post-recap...did work, not anymore

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It's been a long while since I recapped my Portable, and it was working fine for a while.


Now it seems to have this issue. It chimes, then makes a beep sound and then sad macs with this error code. The 03 seems to be constant, the FF sometimes is FD or other codes. Where to start? 



Edited by 16bitsofabus
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That code looks to indicate a RAM test failure.


FF is a reference to which RAM bits failed. I think it means all bits from 0 through 7 failed. Seems likely that you have damage to the RAM chip area, or at least a disconnect for those specific bits.


So basically you would need to check bits 0 through 7 using the schematic, and verify that they have a good connection to all the places they should go.

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