Hello all!
I built my PC about 9 months ago, and all has been working fine since then. Today, I was on my PC when it suddenly shut down (I'm not sure why). I haven't been able to get the computer to start back up at all since then - I get the same problem every time I try; the computer turns on for about 1-2 seconds and immediately shuts down. There are no POST beeps at all. By "computer turns on", I mean the connected fans turn on and the mobo lights turn on.
Things I have tried:
1) Breadboarded my mobo - removed everything but cpu/mobo/mem and fans, same issue.
2) Checked PSU (with a PSU tester to short, like paperclip but built in) and the fan turns on just fine.
3) Tried an alternative power supply, computer still shuts down after 1-2 seconds.
4) Reset CMOS with no effect.
5) While breadboarding. tried removing all memory sticks with no luck. Additionally, tried them all individually with no luck either.
Since the other power supply exhibited the same behavior and the PSU tester seemed to work fine (though I realize that's not really testing if the PSU works on every rail and outputting correct voltage, but at least it's drawing some power), I think I can rule out the PSU.
My thoughts at this point are fried motherboard or CPU. I just don't know which and I don't have a spare motherboard lying around to try plopping this CPU into.
Any advice on how to proceed?
System specs:
Motherboard: Gigabyte GA-Z97X Gaming G1
Memory: Crucial Ballistix 1600MHz 8gb x4
Heatsink: Noctua NH-U14S with 2 attached A15 fans
CPU: Intel i7 4790k 4ghz
Power Supply: EVGA Supernova 850W G2
I built my PC about 9 months ago, and all has been working fine since then. Today, I was on my PC when it suddenly shut down (I'm not sure why). I haven't been able to get the computer to start back up at all since then - I get the same problem every time I try; the computer turns on for about 1-2 seconds and immediately shuts down. There are no POST beeps at all. By "computer turns on", I mean the connected fans turn on and the mobo lights turn on.
Things I have tried:
1) Breadboarded my mobo - removed everything but cpu/mobo/mem and fans, same issue.
2) Checked PSU (with a PSU tester to short, like paperclip but built in) and the fan turns on just fine.
3) Tried an alternative power supply, computer still shuts down after 1-2 seconds.
4) Reset CMOS with no effect.
5) While breadboarding. tried removing all memory sticks with no luck. Additionally, tried them all individually with no luck either.
Since the other power supply exhibited the same behavior and the PSU tester seemed to work fine (though I realize that's not really testing if the PSU works on every rail and outputting correct voltage, but at least it's drawing some power), I think I can rule out the PSU.
My thoughts at this point are fried motherboard or CPU. I just don't know which and I don't have a spare motherboard lying around to try plopping this CPU into.
Any advice on how to proceed?
System specs:
Motherboard: Gigabyte GA-Z97X Gaming G1
Memory: Crucial Ballistix 1600MHz 8gb x4
Heatsink: Noctua NH-U14S with 2 attached A15 fans
CPU: Intel i7 4790k 4ghz
Power Supply: EVGA Supernova 850W G2
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