My PC is almost 3 years old and runs fine but has suddenly started to have random shutdowns for seemingly no apparent reason. It shutdowns when I'm just doing something like some browsing will several tabs open so it's not only when the system is under load. The system temps are normal, I can see them on rainmeter and on logitech lcd display. There are no sudden spikes in cpu or high usage of any components when it happens. The shutdown is instant and there is no blue screen crash or anything like that.
System specs:
Windows 7 64 bit
Intel i5-3570k
Asus Maximus V Gene Z77 Motherboard
EVGA GTX 660 ti FTW+ 3GB
2 x 8GB Corsair Vengeance DDR3 1600Mhz
Corsair CX750 750 Watt Power Supply
TP-Link Wifi adapter pcie card
1 SSD
2 HDD
Probably not worth noting but It's plugged into a probably more than 6 years old surge protector hub(maybe this can cause less clean power?) and the shutdowns started to randomly occur around the same timeframe that I installed f.lux .
It was overclocked a few months ago to 4.2ghz with offset voltage +0.015v and this was tested to be stable and I've been gaming with it. Since the random shutdowns I put everything back to default settings except the RAM in XMP mode with 1600Mhz, shutdowns still occur. Bitdefender scans shows no virus results.
I'm trying to isolate if it's a hardware or software problem and as I type I'm using the PC on a linux live usb but there hasn't been any random shutdowns yet. This may suggest a software problem but I don't think this is a very effective method for testing. Any ideas what might be causing the problem?
System specs:
Windows 7 64 bit
Intel i5-3570k
Asus Maximus V Gene Z77 Motherboard
EVGA GTX 660 ti FTW+ 3GB
2 x 8GB Corsair Vengeance DDR3 1600Mhz
Corsair CX750 750 Watt Power Supply
TP-Link Wifi adapter pcie card
1 SSD
2 HDD
Probably not worth noting but It's plugged into a probably more than 6 years old surge protector hub(maybe this can cause less clean power?) and the shutdowns started to randomly occur around the same timeframe that I installed f.lux .
It was overclocked a few months ago to 4.2ghz with offset voltage +0.015v and this was tested to be stable and I've been gaming with it. Since the random shutdowns I put everything back to default settings except the RAM in XMP mode with 1600Mhz, shutdowns still occur. Bitdefender scans shows no virus results.
I'm trying to isolate if it's a hardware or software problem and as I type I'm using the PC on a linux live usb but there hasn't been any random shutdowns yet. This may suggest a software problem but I don't think this is a very effective method for testing. Any ideas what might be causing the problem?