Computer crashes while under heavy graphics load

[Cream pie filled car]

Hello people,

 

I recently upgraded my graphics card from a 650ti to r9 390. Before carrying out the swap, i removed the nvidia drivers. I plugged in the additional pci-e power connectors and went to turn on my computer. I installed AMD catalyst then went to run valley to check if it was all working, and it was stable. No crashes. After that I ran a few games, but while gaming like when there is an explosion in front of me, The computer shuts down and stays off for 2-3 seconds and reboots. After rebooting, there was no error message and it was just like normal. I went to check the windows event viewer and it said,"The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly." I tried to lower the core voltage in MSI afterburner and it helped a bit.(-19mV stops shutdown but i have to lower the core clock)

 

I assume that the problem may be related to the PSU or the motherboard but I don't know which one. If anybody can help me point out which one is causing the problem so i can fix it soon cause this is starting to get annoying.

 

Things I have tried and did not work:

 

- Swap Pci-e power connectors

- Swap graphics card into another Pci-e slot on the motherboard

- reinstalled drivers

 

System Specs:

 

CPU: i5-4430

MB: Gigabyte Z87 D3HP

GPU: Asus R9 390 Strix

PSU: Thermaltake Smart SE 630w

 

Thanks.

[You_are_a_cunt]

Thermalfake PSU. That should be it

[The_Stig]

Sounds like a power supply problem, given that lowering the voltage fixed it. Get a EVGA GS/G2/B2 or a SeaSonic unit

[CaptainPebbleDash]

100% a PSU problem, not sure if you can check your current AMP from the PSU but I'm going to say your PSU won't even hit near 500w at the moment. 

 

Thermaltake are F***'in awful in general really and my old PSU which was suppose to be 850w only put out 492w after 1 year of use. Should say a lot about the quality of the things they like to use. 

[manikyath]

Sounds like a power supply problem, given that lowering the voltage fixed it. Get a EVGA GS/G2/B2 or a SeaSonic unit

probably evga PS or GS over B2

[Kinda Bottlenecked]

That PSU might be your problem and the "Smart" units aren't what you consider "good" units. 

 

And before all you crazies go "Thermalfake" I suggest you research their Toughpower units. 

 

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

[Cream pie filled car]

Thermalfake PSU. That should be it

 

Sounds like a power supply problem, given that lowering the voltage fixed it. Get a EVGA GS/G2/B2 or a SeaSonic unit

 

100% a PSU problem, not sure if you can check your current AMP from the PSU but I'm going to say your PSU won't even hit near 500w at the moment. 

 

Thermaltake are F***'in awful in general really and my old PSU which was suppose to be 850w only put out 492w after 1 year of use. Should say a lot about the quality of the things they like to use. 

 

probably evga PS or GS over B2

 

That PSU might be your problem and the "Smart" units aren't what you consider "good" units. 

 

And before all you crazies go "Thermalfake" I suggest you research their Toughpower units. 

 

http://www.tomshardware.com/forum/id-2547993/psu-tier-list.html

Alright. Thanks for your input. I will most likely change my PSU to a corsair RM750i as it seems to get a good review on Jonnyguru.com. Although I would love to get an EVGA power supply, it is very hard to find EVGA products here in Singapore.

 

I would get back to this topic after swapping out the PSU and see if that solved the problem.

[Kinda Bottlenecked]

Alright. Thanks for your input. I will most likely change my PSU to a corsair RM750i as it seems to get a good review on Jonnyguru.com. Although I would love to get an EVGA power supply, it is very hard to find EVGA products here in Singapore.

 

I would get back to this topic after swapping out the PSU and see if that solved the problem.

 

Ah ha. I'd advise against going Corsair since SuperFlower is readily available in Singapore and cheaper. 

http://www.mynextcomonline.com/superflower/

 

The good evga PSUs are made by SuperFlower if you don't already know. 

[manikyath]

Ah ha. I'd advise against going Corsair since SuperFlower is readily available in Singapore and cheaper. 

http://www.mynextcomonline.com/superflower/

 

The good evga PSUs are made by SuperFlower if you don't already know. 

if they're cheaper - superflower leadex all the way.

[Cream pie filled car]

Ok. I just replaced my PSU to a RM750i and everything seems to working fine. Proceeding to OC now. Thank you to all who have contributed. Iwill mark this topic as solved