PC Restarting, GPU or PSU?

benjo · 30 Jun 2018 at 15:27

My machine is constantly restarting under load. Originally I thought it was temps but they're OK. CPU sits at around 60c and the Fury is at 65c.

One thing I've found is that my PC instantly restarts when I run Furmark.
If I run any CPU tests with AIDA64 it's fine, the OC is stable.

Specs:
Ryzen 1600 @ 3.6 with a Noctua dh15
R9 Fury Nitro
EVGA 850 P2

I think it's either the Fury or the PSU, but if anyone has any other guesses I'm all ears

FlyingScotsman · 30 Jun 2018 at 15:33

If its restarting with furmark, I would go PSU, what PSU have you got?
Furmark draws a lot of power.
Try a benchmark 3dmark or similar.

benjo · 30 Jun 2018 at 15:39

It's an EVGA Supernova 850w P2, which is why I'm surprised if it is the PSU. I'll run 3dmark and see what happens!

BoomAM · 30 Jun 2018 at 15:42

What is your motherboard and are you using multiple programs at the same time that access the smbus (hardware monitor programs do this)?

tamzzy · 30 Jun 2018 at 15:47

unstable gpu overclock?

benjo · 30 Jun 2018 at 15:50

BoomAM said:
What is your motherboard and are you using multiple programs at the same time that access the smbus (hardware monitor programs do this)?

Using a Taichi x370. I've got HWiNFO64 running, and occasionally have the AMD Relive overlay on.

tamzzy said:
unstable gpu overclock?

GPU is running at stock, the only thing I've changed is setting the target temperature to 65c

tamzzy · 30 Jun 2018 at 15:52

benjo said:
target temperature to 65c

try setting the target temp higher? maybe it's restarting cuz the gpu hits 65 and thinks it's too hot (not sure if possible)?
furys tend to run pretty toasty if i recall...

benjo · 30 Jun 2018 at 16:05

I've just done a full 3dmark run with no crashes.

If I run Furmark at 1080p, Fullscreen and 8x MSAA it runs fine. Although it's at 25fps~

If I run Furmark at 1080p, Fullscreen and 0x MSAA it crashes the PC instantly.

Can it be related to the framerate the card is pushing?

BoomAM · 1 Jul 2018 at 00:03

benjo said:
Using a Taichi x370. I've got HWiNFO64 running, and occasionally have the AMD Relive overlay on.

ok, for a test, disable/dont load/stop the services on boot, all but one of those apps and retest.
I've recently had an issue on my build that im 90% sure is due to a bug in my Asus UEFI caused by too many apps using the smbus at the same time.
Could be related.

freddie64 · 1 Jul 2018 at 06:49

Could this be a unstable RAM problem?

What Ram and motherboard have you got? Maybe a compatibility issue, or needs a bios update.

benjo · 1 Jul 2018 at 11:25

freddie64 said:
Could this be a unstable RAM problem?

What Ram and motherboard have you got? Maybe a compatibility issue, or needs a bios update.

I'm using some GSkill Ripjaw V 3600, and a Taichi x370. My ram is running at 3000 at the moment, and it survives memtest and Aida64.

BoomAM · 2 Jul 2018 at 02:39

benjo said:
I'm using some GSkill Ripjaw V 3600, and a Taichi x370. My ram is running at 3000 at the moment, and it survives memtest and Aida64.

Are you configuring the memory manually, via DOCP or (if the UEFI/BIOS) has the option, XMP?

benjo · 3 Jul 2018 at 10:42

BoomAM said:
Are you configuring the memory manually, via DOCP or (if the UEFI/BIOS) has the option, XMP?

It never liked the XMP profiles so I've always done it it manually, I'm actually running loose timings at 3000~ mhz so didn't think it'd be ram related.

pandem0nium · 3 Jul 2018 at 13:07

Best to put everything to stock inc the gpu and memory when testing.

benjo · 3 Jul 2018 at 13:31

pandem0nium said:
Best to put everything to stock inc the gpu and memory when testing.

GPU is at stock, and Memory is running a lower than stock.

The only thing that's overclocked is the CPU and that's only at 3.6 (Usually stable at 3.8). I'll do some more testing tonight!

pandem0nium · 3 Jul 2018 at 13:51

benjo said:
GPU is at stock, and Memory is running a lower than stock.

The only thing that's overclocked is the CPU and that's only at 3.6 (Usually stable at 3.8). I'll do some more testing tonight!

Memory is overclocked, even if it's lower than XMP advertised speeds.

You might have complete confidence in the stability but you want to keep things as simple as possible when troubleshooting and rule out as much as you can.

benjo · 5 Jul 2018 at 20:58

Just a follow up, I dropped the ram right the way down to 2400mhz and it doesn't reboot instantly in Furmark.

I guess that points the finger at the ram. It's this kit https://gskill.com/en/product/f4-3600c17d-16gvk

Dogoid · 6 Jul 2018 at 23:56

Before my 7970 died it had artifacting/restarts on FurMark. It was progressive

benjo · 8 Jul 2018 at 17:07

I spoke to soon, still rebooting during Furmark/Gaming.

I've underclocked (below stock) the GPU by 200~ mhz and it's been ok so far.