Hi guys
Hoping to get some opinions on where to turn next in diagnosing and fixing this issue that I've been have for the last two weeks or so. I'll post my current system at the bottom.
My PC has been rebooting without warning under a variety of circumstances. Sometimes it will be fine for hours either gaming or watching videos, other times it will reboot every 15-30 minutes even when just browsing forums or sitting at the desktop. I disabled automatic restarts on system errors, but I never get a BSOD, and nothing is noted in the event viewer except the kernel-power code 41 error. Randomly, the PC will just shut off completely like the plug was pulled, then boot back up a second or two later and act like nothing happened. I do get the option to boot into safe mode when it comes back on.
I just got a new power supply thinking that my old one may be on the way out (almost 10 years old), but that hasn't fixed my issue.
I built this computer a couple of years ago and have never had this issue until that last few weeks here. I've run Memtest86 and passed 4 runs (including the new hammer test) with no errors. Other than windows updates and nVidia drivers I haven't installed any new software or drivers that could have triggered this to my knowledge. I updated the BIOS on my motherboard a few months ago when I got a new graphics card, and its been stable since then. I've always monitored my temps using HWMonitor, and they've always been stellar. CPU never goes above 60C (30C idle), GPU maxes out at around 70C when gaming (35C idle). I have good airflow in the case, so I can't imagine its an overheating issue.
I'm at a loss as to where to turn next without just buying parts and throwing them at it. Should my next step be to try reinstalling windows? If I have an physical issue with a hard drive then I know that won't fix it, but it might help a corrupted system file. (I ran system file checker, and no errors were found.) I was thinking it might be a failing motherboard too, but its a good quality one and isn't that old.
Any advice you guys might have would be greatly appreciated.
System:
Mobo: Gigabyte Z77-UD5H
CPU: Core i5 3570k with a 212+ air cooler (currently at 3.4, it was at 4.0 but I returned to a normal multiplier to test, and it didn't fix the reboots)
RAM: 8gb of G.Skill DDR3-1600 (Sniper low-voltage series, correctly setup in BIOS)
GPU: MSI GTX 980 Gaming (no overclock)
PSU: Seasonic X-850 (this is my new one, replaced a Cooler Master UCP-700W)
HDD: 128gb Samsung 840 Pro (about 2 years old) with 500gb WD green for storage (probably 5 years old)
There's also an HP DVD writer, a USB 3.0 hub that came with the mobo, and a few case fans, nothing too crazy.
Hoping to get some opinions on where to turn next in diagnosing and fixing this issue that I've been have for the last two weeks or so. I'll post my current system at the bottom.
My PC has been rebooting without warning under a variety of circumstances. Sometimes it will be fine for hours either gaming or watching videos, other times it will reboot every 15-30 minutes even when just browsing forums or sitting at the desktop. I disabled automatic restarts on system errors, but I never get a BSOD, and nothing is noted in the event viewer except the kernel-power code 41 error. Randomly, the PC will just shut off completely like the plug was pulled, then boot back up a second or two later and act like nothing happened. I do get the option to boot into safe mode when it comes back on.
I just got a new power supply thinking that my old one may be on the way out (almost 10 years old), but that hasn't fixed my issue.
I built this computer a couple of years ago and have never had this issue until that last few weeks here. I've run Memtest86 and passed 4 runs (including the new hammer test) with no errors. Other than windows updates and nVidia drivers I haven't installed any new software or drivers that could have triggered this to my knowledge. I updated the BIOS on my motherboard a few months ago when I got a new graphics card, and its been stable since then. I've always monitored my temps using HWMonitor, and they've always been stellar. CPU never goes above 60C (30C idle), GPU maxes out at around 70C when gaming (35C idle). I have good airflow in the case, so I can't imagine its an overheating issue.
I'm at a loss as to where to turn next without just buying parts and throwing them at it. Should my next step be to try reinstalling windows? If I have an physical issue with a hard drive then I know that won't fix it, but it might help a corrupted system file. (I ran system file checker, and no errors were found.) I was thinking it might be a failing motherboard too, but its a good quality one and isn't that old.
Any advice you guys might have would be greatly appreciated.
System:
Mobo: Gigabyte Z77-UD5H
CPU: Core i5 3570k with a 212+ air cooler (currently at 3.4, it was at 4.0 but I returned to a normal multiplier to test, and it didn't fix the reboots)
RAM: 8gb of G.Skill DDR3-1600 (Sniper low-voltage series, correctly setup in BIOS)
GPU: MSI GTX 980 Gaming (no overclock)
PSU: Seasonic X-850 (this is my new one, replaced a Cooler Master UCP-700W)
HDD: 128gb Samsung 840 Pro (about 2 years old) with 500gb WD green for storage (probably 5 years old)
There's also an HP DVD writer, a USB 3.0 hub that came with the mobo, and a few case fans, nothing too crazy.
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