Unexpected PC Shutdown

[Alecadabra]

PC Shuts down after gpu stress.

Specs:

OS: Whindows 7 Pro

CPU: QuadCore AMD A8-3870, 3000 MHz (30 x 100)

RAM: 8GB DDR3

GPU: MSI AMD Radeon HD 7700 Series (6 GB) (One of the two fans is not functional, but i have a case fan attached on it in the same place as the non-functional fan)

PSU: Silverstone 500W Continuous (No. SST-ST50F-ES230)

Mobo: Asus F1A55-M LX Plus  (1 PCI, 1 PCI-E x1, 2 PCI-E x16, 2 DDR3 DIMM, Audio, Video, Gigabit LAN)

DirectX 11

1080p hp Monitor uisng DVI-D

Case Cooling: Side door missing, no intake/out take fans used.

I get about 4 minutes of fallout 4 on medium quality before the screen goes black, fans continue to spin and windows asks to boot in safe or normal mode.

Stressing gpu on AIDA64 also crashes after about 5 minutes.

AIDA64 Temp readings for idle available below:

[blu4]

Could be your power supply playing up. When just doing normal desktop work, it doesn't shut down?

[Alecadabra]

2 minutes ago, blu4 said:

Could be your power supply playing up. When just doing normal desktop work, it doesn't shut down?

Not with just desktop use no, with any significant gpu stress it will eventually crash, the more gpu intensive the game, the quicker the crash it seems.

I originally thought it was a psu issue, i had a thermaltake 430W supply that i thought was dodgy, so i bought the silverstone one. It does seems to take longer too crash since getting the new psu though.

[blu4]

Try booting without GPU, using the iGPU and run the stress test on CPU only.

[Alecadabra]

3 minutes ago, blu4 said:

Try booting without GPU, using the iGPU and run the stress test on CPU only.

Would it not have the same effect to run AIDA stressing the cpu and not the gpu?

[blu4]

2 minutes ago, Alecadabra said:

Would it not have the same effect to run AIDA stressing the cpu and not the gpu?

What I am trying to do now, is ruling out the GPU. If it doesn't crash now, it's the GPU. If it crashes then we try something else!

[Alecadabra]

4 minutes ago, blu4 said:

What I am trying to do now, is ruling out the GPU. If it doesn't crash now, it's the GPU. If it crashes then we try something else!

Ok i'll try that

Will report back soon

 

[Alecadabra]

5 minutes ago, Alecadabra said:

Ok i'll try that

Will report back soon

 

Oops, don't have a suitable video cable to hook up a monitor if i don't have the gpu in

Anyway, I can't do anything more today, will continue another time when i have the correct cable.

[Sebbydo]

3 hours ago, Alecadabra said:

Oops, don't have a suitable video cable to hook up a monitor if i don't have the gpu in

Anyway, I can't do anything more today, will continue another time when i have the correct cable.

[Alecadabra]

On 30/06/2016 at 8:12 PM, blu4 said:

What I am trying to do now, is ruling out the GPU. If it doesn't crash now, it's the GPU. If it crashes then we try something else!

Ok, got some temperature readings from AIDA64 without my gpu plugged in.

Stressing CPU, FPU, Cache and memory for the first time resulted in a crash after 6 mins of stress (weird). Trying these tests again was different, i got up to 12 minutes without a crash. Readings are shown below, (I did this twice, both readings apart from the middle part are stressing the same things).

Stressing just the gpu, i got no crashes and managed to get 12 minutes of readings also: