i7 4770K, stock heatsink
Asus Sabertooth Z87
Coolermaster V1000
2 x 8GB G.Skill DDR3
EVGA GTX770
Computer was running fine for about 3.5 years, then when updating some Windows (10) setting, I did a Windows-based reboot. Shutdown was fine, but on startup, I got 1 long, 3 short beep code.
Multiple reboots, same beep code.
Went through the forum sticky, now down to just cpu, mobo, 1 stick ram (alternating), psu. Checked for shorts. Now no more beep codes, but immediate shutdown a fraction of a second after power, no matter what. After a while, I discover that removing the CPU cable (from the psu to mobo) and powering will make the computer stay on with no shutdown.
Looked through forums, asked some Microcenter guys, PSU seems to be the most common culprit (even though the V1000 seemed fine using a voltmeter), ended up buying a Corsair RM650i. Exact same problem (immediate shutdown unless CPU cable unplugged).
Returned the new PSU, bought an Asus Z97 mobo. Transferred the 4770K to new board with CM Hyper 212 EVO and Arctic Silver. Exact same problem.
Am I really looking at a faulty CPU despite the apparently benign circumstances of the first appearance of a problem (Windows reboot while I was sitting there, no strange power spike or otherwise)?
Asus Sabertooth Z87
Coolermaster V1000
2 x 8GB G.Skill DDR3
EVGA GTX770
Computer was running fine for about 3.5 years, then when updating some Windows (10) setting, I did a Windows-based reboot. Shutdown was fine, but on startup, I got 1 long, 3 short beep code.
Multiple reboots, same beep code.
Went through the forum sticky, now down to just cpu, mobo, 1 stick ram (alternating), psu. Checked for shorts. Now no more beep codes, but immediate shutdown a fraction of a second after power, no matter what. After a while, I discover that removing the CPU cable (from the psu to mobo) and powering will make the computer stay on with no shutdown.
Looked through forums, asked some Microcenter guys, PSU seems to be the most common culprit (even though the V1000 seemed fine using a voltmeter), ended up buying a Corsair RM650i. Exact same problem (immediate shutdown unless CPU cable unplugged).
Returned the new PSU, bought an Asus Z97 mobo. Transferred the 4770K to new board with CM Hyper 212 EVO and Arctic Silver. Exact same problem.
Am I really looking at a faulty CPU despite the apparently benign circumstances of the first appearance of a problem (Windows reboot while I was sitting there, no strange power spike or otherwise)?
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