Random Computer shut off

[Captain2]

My computer keeps just turning off, for some reason just hitting the power button won't work but if I first unplug the power cord to it and then plug it back in it works.

I searched for possible reasons for this and I found heat as the main suspect, following that I cleaned all the dust out and hooked it back up, it worked for about a day or so and then started shutting off again.

Today after dealing with it shutting off roughly three times a day I took the side off while its running in hopes of getting air into it, the problem continues. (I know its not a great idea due to potential things sucked into it but I'm cleaning it pretty often anyway)

I finally got speedfan on the final chance it would be heat, I've got the following results on it while I type this:

GPU: 45C
Temp1: 76C
Temp2: 30C
Temp3: -1C
HD0: 31C
Core: 45C
Ambient: 0C

is this heat and if not, what else could cause my computer to just shut off whenever it feels like it?

 

[Cutlass]

I'd call heat your problem with those numbers. Particularly nothing should go to 76C. If that's your CPU, which is unclear from what you posted, that's too high. My CPU is currently at 39C. Main board at 37C. Check to see if your heat sink under the fan is loaded with dust, the fan isn't working properly, or the heat sink assembly is loose or not making proper contact with the CPU.


And do so sometime real soon.

 

[Captain2]

the fan is working and I found some dust earlier but not enough to warrant a huge problem

also after reading up on it, temp1 is system and temp2 is cpu

but if temp1 is still the problem, how does one cool the system?

 

[Cutlass]

30C is an acceptable CPU temp. But if so, then 76C seems really off for the system. Since typically nothing runs hotter than the CPU and a few high end GPUs.

Sometimes on the motherboard there are a few heat sinks over some of the key chipsets. See if any of those are loose or clogged with dust.

You could try putting a room fan next to the open box blowing in to see if that number goes down to something normal. But that reading for the system seems well out of whack.

 

[Genocidicbunny]

30C is an acceptable CPU temp. But if so, then 76C seems really off for the system. Since typically nothing runs hotter than the CPU and a few high end GPUs.

Sometimes on the motherboard there are a few heat sinks over some of the key chipsets. See if any of those are loose or clogged with dust.

You could try putting a room fan next to the open box blowing in to see if that number goes down to something normal. But that reading for the system seems well out of whack.

GPU's ( mainstream and enthusiast class ) almost always run hotter than CPU, even at idle. My CPU temp at idle is 39C, my GPU is 44C.
Id suggest figuring out what exactly that 76C is. Although if that is CPU, it should not be randomly shutting down ( unless your motherboard is set to shut down at either 75 or 80C on CPU ). I also suggest demounting the CPU heatsink and applying new thermal paste. This is especially if its been a while since you last did that -- if at all.

 

[Captain2]

I've placed a fan next to it and its caused temp1 to fall to 59C

fingers crossed that this works

 

[Cutlass]

That's a temporary solution though. Something in there needs fixing.

 

[GoodGame]

Check your motherboard manual and case to see if you can add a few extra fans. At worst, you can probably get a 4-slot power to fan converter wire very cheap and two more fans for about $30-$40 from newegg.com, assuming there's room in your case for them. If not, if you have a smaller case, it's probably time to upgrade to a full sized ATX case.

 

[Captain2]

I appear to be having this problem again with my new computer, luckily I believe I have a warranty

GPU: 47c
Temp1: 34c
Temp2: 38c

think heat is the problem again? I'm trying to figure out what direction to point them in this time

 

[Genocidicbunny]

None of those temperatures are anything to worry about. In fact, thats pretty good for the GPU.

 

[GoodGame]

Yeah those are nice temperatures. ~60C would be worrisome for a cpu, generally.

Maybe you actually have a power supply that's inadequate for the job? Either by design, or the PSU unit happens to be a dud.

Or even just a loose connection from the power supply to mobo. (or even from the plug to the power strip ).

 

[Metal_Casting]

A good cabinet with proper ventilation would also help. If you already have a good cabinet check to see if the cable management is good, sometimes cluttered cables could also cause an increase in temp.