Could a bad PSU cause GPU to crash at benchmarks ?

[adham.]

So I have this HTPC with a GTX 750 Ti which ran like a GTX 750 Ti for the past year and a half.

Put yesterday i reinstalled windows 10 and all my drivers and It crashed at every benchmark (Valley , Heaven and FurMark)

With the gpu nearly touching the 65C. Some times it crashed at the very first couple of second. Displaying a black screen that sometimes i can quit and end the program out of Task manger.

And sometimes i can't and had to do a Hard-reset of the whole PC.

Sometimes it crashed at weird colors too, Like in Heaven it crashed with a pink color.

My psu is some chinese brand and it says it has 1200watts , Yeah.

(it's an HTPC and i didn't really wanna to spend that much on a good psu because i'm in egypt and everything is so expensive)

The psu + GPU+ CPU were working like they should a couple of weeks ago and i actually ran heaven back then on the same build and it ran for 3 benchmarks cycle like a charm.

What is the problem here GPU or PSU ?

The build is 1.5 Years old and it's so young to die :"( 

Any ideas ?

 

P.S : i tested Latest Nvidia drivers and old ones as well, Same issue.

Another P.S : Tested CPU with Prime95 No issues.

[iRileyx]

A 1200 watt chinese branded power supply... yeah that's most likely the cause.

[adham.]

Just now, RKRiley said:

A 1200 watt chinese branded power supply... yeah that's most likely the cause.

It ran cool and good for the past year and a half and i could Benchmark anything,
Could it be the PSU ?

 

[Himommies]

Just now, adham. said:

It ran cool and good for the past year and a half and i could Benchmark anything,
Could it be the PSU ?

 

I would assume so

[JakeNTech]

2 minutes ago, adham. said:

It ran cool and good for the past year and a half and i could Benchmark anything,
Could it be the PSU ?

If the power that the cheap PSU is giving out is not very good or crumby in other words, GPU's etc will have a hard time dealing with it, and under full load its propberbly not getting the power it needs so is crashing. There is also some other things it may be my knowledge of PSU's isn't to reliable past what I have just mentioned. 

[ARikozuM]

What PSU is it? Model and brand would be better than "some Chinese 1200W".

[ARikozuM]

Please post full specs, please. This includes CPU, GPU, PSU, OS, drives, etc.

[adham.]

4 minutes ago, ARikozuM said:

Please post full specs, please. This includes CPU, GPU, PSU, OS, drives, etc.

Cpu: I3-4170 @ 3.7 GHz

GPU: Zotac 750 Ti @ stock 

PSU : as I said " a chinese company " with "it says" 1200w, the name is in chinese actually and i has a cool horse on it.

OS: Win 10 Pro 64bit latest updates installed.

Drivers: Latest to everything Mobo,GPU,Chipset you name it.

 Please note it's a HTPC.

[ARikozuM]

1 minute ago, adham. said:

Cpu: I3-4170 @ 3.7 GHz

GPU: Zotac 750 Ti @ stock 

PSU : as I said " a chinese company " with "it says" 1200w, the name is in chinese actually and i has a cool horse on it.

OS: Win 10 Pro 64bit latest updates installed.

Drivers: Latest to everything Mobo,GPU,Chipset you name it.

 Please note it's a HTPC.

Can you take a picture of the label for the PSU?

[adham.]

Desktop + old games ran pretty fine.

But in benchmarks the GPU crashed (valley , Heavn and FurMakr.)

[adham.]

Just now, ARikozuM said:

Can you take a picture of the label for the PSU?

I can't it's all tightly packed up in a very small case and doing that i have to remove and put it all together.

[Evolution.]

4 minutes ago, adham. said:

I can't it's all tightly packed up in a very small case and doing that i have to remove and put it all together.

just buy a new psu like an EVGA or corsiar and why did you need a 1200w psu for this build

[PCGuy_5960]

Get a better PSU, you don't need 1200W. Even a 550W quality PSU will be fine

[adham.]

Just now, VenomZ_ said:

just buy a new psu like an EVGA or corsiar and why did you need a 1200w psu for this build

1- I'm in Egypt and 1 USD = 17.5 EGP

2- It's an HTPC and was running fine actually for the past 1.5 Years until yesterday or so.

3- it was 1.5 bucks. so yeah. 

4-i'm pretty sure it does not push 1200 watts. If that PSU really is 1200watts then i'm batman.

[JakeNTech]

1 minute ago, adham. said:

1- I'm in Egypt and 1 USD = 17.5 EGP

2- It's an HTPC and was running fine actually for the past 1.5 Years until yesterday or so.

3- it was 1.5 bucks. so yeah. 

4-i'm pretty sure it does not push 1200 watts. If that PSU really is 1200watts then i'm batman.

Cheap PSU's really don't last long. There generally poorly made and the wattage and voltage etc. is often exaggerated.

I would invest in a 550Watt PSU. 

[DocSwag]

2 minutes ago, adham. said:

3- it was 1.5 bucks. so yeah. 

Yeahhhhh that's not a good sign for sure  

[PCGuy_5960]

4 minutes ago, adham. said:

3- it was 1.5 bucks. so yeah. 

Honestly, what were you expecting? It's a $1.5 PSU

5 minutes ago, adham. said:

If that PSU really is 1200watts then i'm batman.

 

[adham.]

2 minutes ago, PCGuy_5960 said:

Honestly, what were you expecting? It's a $1.5 PSU

 

I honestly expected it to kill my PC, But eh it worked.

with like a jet engine but working.

Now it's every freaking benchmark crashing and such

But there is something weird CPU benchmarks don't crash, Don't they use High power too?

[PCGuy_5960]

1 minute ago, adham. said:

I honestly expected it to kill my PC, But eh it worked.

with like a jet engine but working.

Now it's every freaking benchmark crashing and such

But there is something weird CPU benchmarks don't crash, Don't they use High power too?

The CPU probably draws less power than the GPU. Just get a better PSU and you'll resolve the issue

Any PSU from Tiers 1,2 and 3 is fine

[adham.]

1 minute ago, PCGuy_5960 said:

The CPU probably draws less power than the GPU. Just get a better PSU and you'll resolve the issue

Any PSU from Tiers 1,2 and 3 is fine

Could be that my I3 4170 is just not too power hungry.

And my 750 Ti is.

Will try out some other good psu and see.
Thank you.

[aisle9]

13 minutes ago, adham. said:

Could be that my I3 4170 is just not too power hungry.

And my 750 Ti is.

Will try out some other good psu and see.
Thank you.

Most 750 Ti cards, probably including your Zotac, draw a maximum of 75W from the board and nothing else. Smart money is on your PSU being in its death throes.

[adham.]

So i'm a bit of an Assassin's creed fan so i tried AC: Revlations.

And well, it didn't go so well

I made a Video on YT, So you guys can see for yourself.

Sorry for the 360p but for a faster upload.

What do you guys think ?

[ARikozuM]

GPU is about to commit seppuku. Get a better PSU and think about replacing that GPU.

 

First, use DDU and reinstall the video drivers with an older one.

[adham.]

1 minute ago, ARikozuM said:

GPU is about to commit seppuku. Get a better PSU and think about replacing that GPU.

 

First, use DDU and reinstall the video drivers with an older one.

gonna do that.

[SpaceGhostC2C]

A faulty PSU can make anything crash. It can also be the GPU crashing because the GPU itself is dying (which in turn may or may not be a consequence of a bad PSU).However, just because it can be the case, it doesn't mean it is the case. It's not very easy to diagnose, though, especially without redundant components to test.

 

You can try using something like HWMonitor to monitor voltages as reported by the motherboard, both at idle and then over time as you game. However, you would need to rely in these software measures, and there are other potential problems besides incorrect voltages, and that would required more involved, "lab-like" testing.