is my gpu or psu faulty?

[Toffe123]

So when i go to run a heavy load on my gpu such as a benchmark or a graphically intensive game, my entire pc locks up and restarts itself with my monitor losing signal. i try to diagnose this problem the best i could and i feel that it's either the gpu or psu.

 

for example, i go to run 3dmark time spy on my gpu, the test runs until it reaches the latter stages and the pc restarts then. i then ran the test on my iGPU and it completes no problem, no restart.

 

While playing a game like gta 5, the pc restarts 15 mins in.

 

also to note, performance and graphics quality still look normal which makes me wonder if the gpu is fine but the psu is failing? it's just the pc restarts under heavy gfx load. BUT, i underclocked the gpu (-250mhz core+mem) for further testing and benchmarks worked fine!?

 

specs:

rx 580 nitro+ SE 8gb 1x6 pin + 1x8pin

500w evga white 80 plus

i5 4460 / 12gb ram / h81m-s2h mobo

 

p.s, this issue started recently as when i first got the gpu, everything worked fine, i was able to run benchmarks etc all fine.

 

(sorry for formatting)

[Princess Luna]

How old is the PSU actually? It's certainly a low end one and if it's really dated in usage and your RX 580 is recent then I'm willing to call on it.

 

But still on he matter of the GPU did you properly DDU in safe mode and reinstalled drivers fresh new yet?

 

All in all you want to avoid using a super old ass low end power supply with the latest hardware as power usages are quite different they were from then... you'll be forcing a situation prone for trouble.

[Toffe123]

1 minute ago, Princess Cadence said:

How old is the PSU actually? It's certainly a low end one and if it's really dated in usage and your RX 580 is recent then I'm willing to call on it.

 

But still on he matter of the GPU did you properly DDU in safe mode and reinstalled drivers fresh new yet?

 

All in all you want to avoid using a super old ass low end power supply with the latest hardware as power usages are quite different they were from then... you'll be forcing a situation prone for trouble.

the gpu was bought from amazon a month ago and it was a used but "very good" condition unit. the psu is merely 3 years old and was bought brand new.

 

i reinstalled windows, ran ddu, installed latest drivers. same problem 

 

also, i thought the psu was half decent, as it was by evga and was 80plus.

[Princess Luna]

3 hours ago, Toffe123 said:

.

Sorry to break it to you but the PSU is really bad actually, first of all you don't shop for brand just model and 80+ efficiency by itself is no indicator of reliability or safety.

 

Nowadays you should look for 80+ Gold at least even though efficiency by itself isn't the important thing the major brands will cheap up a lot of on their models under this rating.