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Macintosh IIfx chime of death, no video

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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 good FX power supply I swapped in, no change. Known good IIfx ram swapped in, no change. Tried booting with no cards, no change. Cleaned board with isopropyl alcohol, no change.

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