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07-20-2022 07:36 AM
I have a Z840 which was regularly shut down and the next day would not power on: no power at all, dead, no LED activity no fans, nada. Removed the PSU and the BIST passes (green led on and relays click) so I suspect some power regulator component on the motherboard has failed. I removed and disconnected everything leaving only the 2 CPUs and memory but it it's just dead weight, no activity at all, no hint on powering up. The motherboard (761510-601) is a Rev E (not D) - if anyone has any other pointers or suggestions before replacing it it's welcome. Cheers!
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