Computer shuts down after some minutes

[plutomaniac]

Forget about Amnesia. Your power supply may not be able to support the gpu even at 70% for example. It doesn't mean that it shuts down only when the graphics card reaches 100% power draw. Try the older 6600GT and then we will know if it's the power supply or not(it should be that though if not cpu TJMax).

[Googolplex]

Forget about Amnesia. Your power supply may not be able to support the gpu even at 70% for example. It doesn't mean that it shuts down only when the graphics card reaches 100% power draw. Try the older 6600GT and then we will know if it's the power supply or not(it should be that though if not cpu TJMax).

CPU TJMax is at 100°C, so when Prime not reaches this temperature even with 100% at all cores, no game will reach TJMax.

I will first testing Furmark to stress test my GPU. And when my PC goes off, it's the PSU.

[plutomaniac]

CPU TJMax is at 100°C, so when Prime not reaches this temperature even with 100% at all cores, no game will reach TJMax.

Exactly, that's correct. Btw, it may be 105°C but that's not the point now.

I will first testing Furmark to stress test my GPU. And when my PC goes off, it's the PSU.

Alright. If you can, have some monitoring program open to see if the cpu stays under TJMax just to be sure about that as well.

[Googolplex]

Finally I started Prime95 again and then at the same time Furmark.
All settings on max, for highest temperature and hardware usage.

Nothing. My PC runs very stable at 95°C CPU temp and 100% GPU usage.

That's very strange. It's an unsolvable problem.

[plutomaniac]

100% GPU usage does not mean 100% power draw. These tests just burn-in the gpu. Their purpose is heat output and stability.

So if you try a game now, will it close after some minutes or near-instantly? Try it again and if it shuts down then you have to try the 6600GT thing to see if it's really the psu. Otherwise, without being 100% sure, I suggest buying a new power supply.

[Googolplex]

I finally got new PC components and build up a new machine!

Intel Core i7-4770 "Haswell" @3,40 GHz
16GB Kit G.Skill Ares DDR3-RAM 1600 CL9
256GB Plextor SSD + 1TB WD Caviar Blue HDD
750W BeQuiet! Dark Power Pro 10
Gigabyte GA-Z87X-UD4H Motherboard
nVIDIA GeForce GTX 560 Ti (my old one)


CPU temps are at 30°C Idle and 65°C Load using a Thermalright True Spirit 140 BW cooler.

Now I am able to play the pigs!


My old CPU was at 70°C in Idle and 96°C Load. This was causing the shut downs.

[plutomaniac]

Nice choices. The next thing to update (not now, in a year or so) would be the 560 Ti. But still, very capable machine.