Vega 64 overheating when "high" fps

Chezdon said:
Why does the PCIe have two heads on it? I can see the one that's in the machine is the same, and both heads are plugged in to the GPU. Can't even see where I'd stick this new one. There's definitely space on the PSU where you've outlined.

Ok did some reading, I'll take the daisy chain out and put the second cable in. Turning off and will report back. Thanks for your help thus far, gentlemen.
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Some cards will be fine with the 2x8 pin on one cable, but a Vega 64 can consume up to ~300W, with your specific card it would not be unusual to see closer to 330W in stock form at full load.

The PCI Express slot itself can provide up to 75W. The spec for a 6 pin PCIe cable is 75W, the spec for an 8 pin is 150W. In practice many PSU's are happy to deliver more than that down a single PCIe cable but if we assume your card wants to use ~330W at maximum load, with one cable you're asking it to supply over 250W down a single PCIe cable - around 70% over spec.
 
The second cable should in all honesty fix crashing, but the heat WILL still be an issue - which is still a gripe.

If you have no intake fans and only 120mm outtake there is no wonder why you're pc feels like its getting REALLY hot.


Do you know the model of your case?
 
Lower temperatures are nice, but none of the GPU temps in OP's screenshots are cause for major concern. With Vega hotspot is usually the problem and unless that is high 90's (limit is 105C) you're fine. GPU core and HBM in high 60's / low 70's is also fine.
 
SonicSW20 said:
Lower temperatures are nice, but none of the GPU temps in OP's screenshots are cause for major concern. With Vega hotspot is usually the problem and unless that is high 90's (limit is 105C) you're fine. GPU core and HBM in high 60's / low 70's is also fine.
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I know that, but if the case itself is getting uncomfortably hot (if near his leg), it's still not a nice experience. I replaced my NXZT case recently to a 400A and the difference was night and day to me. My first post indicated that 85 on the hotspot is fine and the rest of my advice is just cooling for coolings sake, as the OP is complaining that his case is running hot :)
 
Reached my 24 hour posting limit...!

Ok so a little update.

https://imgur.com/a/RwxU3Gw

It crashed earlier when I first put the cover back on, but came back an hour later and booted the game up again. Been playing 30 mins now and high temps but no crash. It's getting noisy but not disgustingly noisy like it was earlier when I was messing around with the fans in Tuning.

Dy'a think it's best just to leave it now?

This is my case:

https://www.********.co.uk/products/bitfenix-nova-mid-tower-case-black/bfx-nov-100-kkxsk-rp.html

That's "Nov@tech" btw, where it's ***. Guess OC don't want that on here.
 
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You need to confirm the issue has definitely been fixed, which means long term testing. How long before it would crash previously? What exactly was the crash - BSOD (with error message), game crash to desktop, system hang/freeze, black screen, or complete power down?

Now that it is running for longer at high loads the HBM and core temps are on the high side, as Monty pointed out though if you've got no front intake fans then airflow will be poor, so that is a separate issue that needs addressing.
 
Yep, I'll definitely see how it copes with longer-term gaming. It'd crash playing Divinity too when I had the fps past 30. So I'll try that at 60+ and see if it copes.

As for the blue screens, I honestly have no idea. I've been keeping a log, and it used to happen very often when I was playing Age of Empires II - usually it was "Unexpected Store Error". Sometimes "Critical Process Died", and once it was, "Kernal Data Input Error" but I haven't had that for a few months.

They're quite random. It appears they happen when a few things are going on at once. Can be in game or even just browsing Chrome, but mostly ingame. I've updated all drivers, run various health check tests and they all seem to be ok.

All the BSODs would just freeze my computer and then restart it.
 
That case has seemingly nothing to allow air in from the front. If I were you I'd ditch it for a better case, it'll help get air into the case and ultimately help with cooling on both the CPU and GPU.

You are really making a hotbox in there.

I went from a very similar looking case to the following in black:

https://www.overclockers.co.uk/phanteks-eclipse-p400-air-midi-tower-drgb-case-white-ca-09h-pt.html

OCUK have none in stock until August but you can find other places that have them. The come with 3 fans for intake, then you can butcher you exhaust into it - plus theres space for 2 additional 140mm fans on top. It would be like putting your parts in a wind tunnel in comparison to your current setup.
 
Chezdon said:
As for the blue screens, I honestly have no idea. I've been keeping a log, and it used to happen very often when I was playing Age of Empires II - usually it was "Unexpected Store Error". Sometimes "Critical Process Died", and once it was, "Kernal Data Input Error" but I haven't had that for a few months.

They're quite random. It appears they happen when a few things are going on at once. Can be in game or even just browsing Chrome, but mostly ingame. I've updated all drivers, run various health check tests and they all seem to be ok.
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Note down the error codes if you can (or take a picture of the screen), there may be multiple issues in play here if they really are random. You can also check the Windows Event Viewer for log entries at the time of the crash. You can ignore anything that says "information" or "warning", look for ones labled as "error" or "critical" at the time of the crash.

montymint said:
That case has seemingly nothing to allow air in from the front. If I were you I'd ditch it for a better case, it'll help get air into the case and ultimately help with cooling on both the CPU and GPU.
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Assuming it's not the Mesh variant, it has some slits down the sides of the front panel to allow air in. Far from ideal.
 
Yes it has a tiny mesh vent on the front but it does nothing. I was playing Divinity just now and it held up really well up to 240fps. Not sure if you've played it but unfortunately it did instantly crash to the desktop when there was a lot going on. It got really hot too again. Like so hot that I walked away for a while, came back in to the room and could smell burning (probably the dust inside the case). Got 94c top hot spot temps.

I'll definitely look in to a new case then. Are these things quite easy to strip and rebuild?
 
Chezdon said:
Yes it has a tiny mesh vent on the front but it does nothing. I was playing Divinity just now and it held up really well up to 240fps. Not sure if you've played it but unfortunately it did instantly crash to the desktop when there was a lot going on. It got really hot too again. Like so hot that I walked away for a while, came back in to the room and could smell burning (probably the dust inside the case). Got 94c top hot spot temps.

I'll definitely look in to a new case then. Are these things quite easy to strip and rebuild?
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Yeah, pc's are pretty easy to gut swap.

If you're based in Newcastle Upon Tyne or near I don't mind helping.
 
Chezdon said:
Yes it has a tiny mesh vent on the front but it does nothing. I was playing Divinity just now and it held up really well up to 240fps. Not sure if you've played it but unfortunately it did instantly crash to the desktop when there was a lot going on. It got really hot too again. Like so hot that I walked away for a while, came back in to the room and could smell burning (probably the dust inside the case). Got 94c top hot spot temps.

I'll definitely look in to a new case then. Are these things quite easy to strip and rebuild?
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An improvement at least? Was there an error message with the crash to desktop?
 
SonicSW20 said:
An improvement at least? Was there an error message with the crash to desktop?
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I wonder if the CPU is overheating due to the hotboxed case? 3600's can get a little warm, especially if there's only 1 120mm fan dumping all of the hot air from the cpu and gpu.

It ties in to the high fps because of the extra heat being dumped by the vega under load
 
That's incredibly kind of you but I'm actually based in London.

So there are two types of crashes I'm getting. The one that we've pretty much sorted seemed to be the single cable to PSU issue. It has only crashed once since then during a very graphic intense fight midgame. It just cut out the game and went to the desktop. No error message. I used to get, "Div X error" when it crashed mid-game but that seems to have stopped.

The other is the BSOD which I haven't had for a few days now, although I'm by no means of the illusion that I won't still get them.

I think the next stage for me is to get a new tower, probably the one you just linked, and see if finally my issues are sorted. I guess it also couldn't hurt to buy some thermal paste for the CPU/GPU when moving the parts?

I did keep my eye on the CPU heat but it hasn't really gone past 60, and from what I've read, the 3600 runs hot anyway?

I did a few things that people recommended - mainly changing the power status in windows options and that certainly seemed to help it.
 
Perform the same test with the side off, now that we think we've got the power issue sorted. If it is temp related, that should sort it, and its time to get a better case.

60C for a 3600 isn't a problem at all.
 
Chezdon said:
Yes it has a tiny mesh vent on the front but it does nothing. I was playing Divinity just now and it held up really well up to 240fps. Not sure if you've played it but unfortunately it did instantly crash to the desktop when there was a lot going on. It got really hot too again. Like so hot that I walked away for a while, came back in to the room and could smell burning (probably the dust inside the case). Got 94c top hot spot temps.

I'll definitely look in to a new case then. Are these things quite easy to strip and rebuild?
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Use vsync to cap to your monitor's refresh rate. There is no point pumping 240fps into a 60Hz monitor (if that's what you have). That's just burning power and making heat for the sake of it!
 
SonicSW20 said:
Perform the same test with the side off, now that we think we've got the power issue sorted. If it is temp related, that should sort it, and its time to get a better case.

60C for a 3600 isn't a problem at all.
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@Chezdon yeah 60c is fine if that's under load.

This is a good point by sonic, leave the pc as open as possible and if you don;t get crashes then you can put it down to heat and yes - change your case
 
I have https://www.overclockers.co.uk/acer...-widescreen-led-gaming-monitor-mo-141-ac.html and it's pretty sweet. 144hz I believe. Pretty sure I have vsync activated.

I've finished Divinity 2 so no more 240 fps lol. Back on the Witcher at 60fps.

Ran a few different scenarios.

Fans normal, case closed. Crashed
Fans normal, case open. Didn't crash, but quite hot.
Fans higher, case open. Didn't crash, pretty decent temps, noisy.
Fans higher, case closed. Didn't crash, highish temps, noisy.

I think I'll keep it at the fourth scenario for now and see how I get on. It is a tad noisier, but tbh it's nothing intrusive.

Screenies of the temps. CPU stayed at circa 65c throughout.

https://imgur.com/a/P42yRyo

Thanks for the help guys, really appreciate it.
 
Those GPU temps looks alright, IMO it's gotta be heat somewhere else on the board - it must be upsetting something.

However the tests DO prove that it must be be heat - or it's a coincidence.

Get it into a scenario where it doesn;t crash and stick to it all night and into tomorrow. If at the end of today tomorrow you haven;t crashed then pay the money for a good case.

The Phantex 400A (the rgb one) is a decent price at about £90 since you get 3 120mm fans. I would suggest (if you can afford it) a single 140mm fan for the top of the case to help dump the hot air. Id then steal the fan from the back of your current case - you'll then move from one exhaust to 3 intakes and 2 exhausts - much better!
 
That's conclusive enough for me that there is also a heat issue. GPU-Z gives you a few more sensor readouts if you wanted to get more info but at this point it's not really necessary.

Once you have it running nicely in default configuration, you can then look to optimise with a custom setting in the Radeon settings if you want to.
 
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