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  1. J

    Used EPYC 7601 post code 78

    Oh, I've tried all kinds of sequences and combinations. On the newest bios now. Nothing makes any difference. And the retail 7251 always boots perfectly on the first try regardless of the previous configuration. If there's no trick here or something specific to the 7601 pretty sure there's...
  2. J

    Used EPYC 7601 post code 78

    It's a rev 2.00 board So that should work with both Naples and the newer Rome cpus. But both 7251 and 7601 are Naples either way.
  3. J

    Used EPYC 7601 post code 78

    Yea, mostly only trying this way in fact. Both 7251 and 7601 are rated as 1P/2P CPUs. Different RAM seating configurations don't help. Other than that not sure what other variable could be involved. the post sequence for 7601s goes like this as far as I can tell from IPMI 3e d1 d3 b5 c8 b7 78
  4. J

    Used EPYC 7601 post code 78

    Correct, the 1 7251 boots fine. Neither of the 7601s boot. Not sure how I'd tell if it's ES or QS. Both vendors seem to be involved in decommissioning server hardware so I assume they should be just used cpus. Attaching images of all 3 I've got. (PS7601BDVIHAF is the part number for the 7601s)
  5. J

    Used EPYC 7601 post code 78

    Hey, So I've got a supermicro H11DSI-NT, got two different epyc 7601s from ebay from 2 different vendors that looked somewhat reputable. Both are giving me post code 78. Fans spinning, but nothing booting, no video, IPMI not even showing correct hardware info. Exact same behavior for both CPUs...