Computer Keeps Shutting Off While Gaming

[SafetyPotato]

So recently my computer just randomly turns off and goes black screen 20-40 minutes after I start gaming then it boots back up. I've done some tests and it seems it only shuts down when I'm gaming. Today when it shut down it kept trying to boot back up, but failed 3 times before I had to turn the power supply off and on. My guess is my power supply is dying, but I've only had it for a year...Any ideas?

 

[ss202sl]

Yeah, that's probably it. You'd know better than us anyway because you know all the specs. Maybe If you gave us your specs, we could come up with something more.

 

[i7Baby]

Could be your CPU getting too hot. Post your build.

 

[Illumynization]

PSU would be the most likely cause. After that an overheated CPU, then overheated GPU.

 

[Dark Lord of Tech]

Specs please.

 

[SafetyPotato]

Yeah, that's probably it. You'd know better than us anyway because you know all the specs. Maybe If you gave us your specs, we could come up with something more.

My specs are:

Gigabyte GA-Z87-HD3 ATX LGA1150
Vengeance® — 16GB Dual Channel DDR3 Memory
Seasonic S12II Bronze 620w
Intel Core i5-4670 Haswell Quad-Core 3.4GHz LGA 115
EVGA G-SYNC Support GeForce GTX 770 DUAL SuperClocked 4GB 256-bit GDDR5

 

[i7Baby]

Is this a pre-built?

What temps is your CPU getting to at idle and while gaming? How are you measuring these temps?

From bios or your mobo utility software, what readings are you getting for the 12v, 5v and 3.3v rails?

 

[SafetyPotato]

Is this a pre-built?

What temps is your CPU getting to at idle and while gaming? How are you measuring these temps?

From bios or your mobo utility software, what readings are you getting for the 12v, 5v and 3.3v rails?

My PC is not prebuilt. At idle my cpu is running at around 30° C. During gaming it runs around 42° C. I'm using CPUID HWMonitor to measure these temperatures. My 3.3v rail is at 4.980V, my 5v rail is at 4.980V, and my 12v rail is at 12.096V

 

[i7Baby]

Your 3.3V rail is at what?

 

[SafetyPotato]

Your 3.3V rail is at what?

Sorry, I misread. I meant my 3.3v rail was at 3.344V

 

[Dark Lord of Tech]

http://pcsupport.about.com/od/insidethepc/a/power-supply-voltage-tolerance.htm
Proper Voltage Ranges for ATX Power Supply Voltage Rails

 

[i7Baby]

Those voltages seem OK.

And your CPU temps seem OK. What about graphics card temps?

Disconnect your OD drive and see if your PC posts - loads bios OK. To see if there's a hardware problem