Problem with 2 different PSUs

Baviecca

Reputable
Feb 28, 2014
9
0
4,510
greetings..

first of all this is my build

proccessor: FX8350
Graphics: Gigabyte r9 290
RAM 8gb corsair vengeance
Motherboard: Asrock 970 Extreme3
HDD: Seagate Barracuda 2TB single
PSU: Coolmax CUL-750B --> CoolerMaster v850w GOLD


when i first started using my build on the coolmax PSU i could play low demand games okay like dota 2 but when i try and run Battlefield 4 the fps is good and everything is ok but after like 5 -10 seconds the pc will FULLY shutdown (not a blue screen completely shut down as if i unplugged the power cable). so i thought it might be that the PSU is not good enough or maybe it died after alot of use (i was using it on my old build) so i bought the coolermaster one...

btw this is a newly purchased build i havent even gotten time to play on it yet.

i have installed everything properly and the pc runs well but i am getting very low frame rates in benchmarks and the same games i used to play

heaven benchmark score dropped from 1950~ to 750~

i dont know what the problem is and i hope you could help me.

thanks in advance and sorry for any disturbance.
 

Baviecca

Reputable
Feb 28, 2014
9
0
4,510
the idle GPU temp is ~39 and while stress testing is about ~75 ... this is actually lower than before by atleast 8 degrees C.

the CPU however is idle at 38 - 40 and is not being affected when i stress test the GPU.