Vega Thermal Throttling

[Trouble Kelp]

I have a Vega FE and when ever I play a game or run a benchmark it seems to be thermal throttling. I have tested several different games/benchmarks and I have noticed weird behavior. First whenever my card gets to 71-72 Degrees it starts to throttle. I have tried running the fan at max speed and it helps the performance because it doesn't throttle as much but it still throttles when it hits 71. It has never gone over 72 degrees but the HBM gets into the mid 80s and the hotspot temperature is in the 90s. The fan tach also reports impossibly high RPM (1.5 Million) when it's maxed out. The fan RPM is reported properly when it's not maxed so I'm not really sure what's going on there. I have reinstalled drivers way to many times trying to get the driver mod switching to work so I don't think that's the issue. Which temperature throttles the GPU? I thought it was just the GPU temperature but i'm wondering if the hotspot temperature is causing the throttling. What could be causing the fan to report such high RPM when it reports properly the rest of the time? Any help solving this would be awesome. 

[leo1798]

If you haven't already, try rolling back the drivers to an earlier version rather than just reinstalling them as that's what this issue sounds like even still. Otherwise I'd maybe try replacing the thermal paste or waiting for someone with greater expertise than myself to give some advice. 

[Xkillerpn]

Undervolt the card and use -5% power. Also use overdriveNtool to do it. Check guro3d forums for more help.there is allot of info there

[GoldenLag]

thermal trottling as in go below indicated sustained clock or as in that it doesn't boost 100% anymore?

[Aashirbad Thapa]

3 hours ago, Xkillerpn said:

Undervolt the card and use -5% power. Also use overdriveNtool to do it. Check guro3d forums for more help.there is allot of info there

Undervolting might help but I think he needs to re-apply thermal paste. I can surely say that re-applying thermal paste will work. You never know what might be the heating cause.

[Trouble Kelp]

Sorry for the late response.

On 9/16/2019 at 2:16 AM, GoldenLag said:

thermal trottling as in go below indicated sustained clock or as in that it doesn't boost 100% anymore?

It doesn't even hold the base clock the whole time. 

 

On 9/16/2019 at 5:57 AM, Aashirbad Thapa said:

Undervolting might help but I think he needs to re-apply thermal paste. I can surely say that re-applying thermal paste will work. You never know what might be the heating cause.

I have reapplied thermal paste and it reduced the hot spot temperature and the HBM memory temperatures but the card still throttles at 71 degrees. 

On 9/15/2019 at 8:32 PM, leo1798 said:

If you haven't already, try rolling back the drivers to an earlier version rather than just reinstalling them as that's what this issue sounds like even still. Otherwise I'd maybe try replacing the thermal paste or waiting for someone with greater expertise than myself to give some advice. 

I have DDUed and tried just about every driver from the last year to try and get the mode switching working but it seems to be the same on all the drivers I've tested. 

[GoldenLag]

3 hours ago, Trouble Kelp said:

It doesn't even hold the base clock the whole time. 

What does temps in hardwareinfo64 report on all GPU sensors

[Xkillerpn]

So Vega boost from 1400 to 1600ish on air. Even with 75c you are not going to trottle. undervolt a bit put it like this on P7 1600mhz and 1030mv and than back track by 20mv until you get to p5 and leave it alone.  also 0% power target

[Aashirbad Thapa]

try keeping a aggressive fan curve and see the power being utilized by the GPU. Or can it be due to the blower style fan? What case are you using and what is the airflow of the case? Might be that you have been congesting the airflow to the graphics card.

[Trouble Kelp]

18 hours ago, GoldenLag said:

What does temps in hardwareinfo64 report on all GPU sensors

With the new paste the max GPU temp is 71 degrees, HBM max is 78 degrees and Hotspot max is 83 degrees. 

16 hours ago, Xkillerpn said:

So Vega boost from 1400 to 1600ish on air. Even with 75c you are not going to trottle. undervolt a bit put it like this on P7 1600mhz and 1030mv and than back track by 20mv until you get to p5 and leave it alone.  also 0% power target

My card seems to be throttling at 71 degrees. It will clock all the way up to 1600MHz but the second the GPU hits 71 degrees it starts to throttle and the clocks drop considerably. Most of the time it's clocked around 1100-1250MHz as it hits 71 degrees. 

16 hours ago, Aashirbad Thapa said:

try keeping a aggressive fan curve and see the power being utilized by the GPU. Or can it be due to the blower style fan? What case are you using and what is the airflow of the case? Might be that you have been congesting the airflow to the graphics card.

I have tried setting the fan to 100% and it does boosts the clocks I get overall but they fall once the card gets to 71 degrees. I have a Haf 912 and the airflow is good enough it shouldn't be a problem. The graphics card isn't even getting that hot because it throttles so early. 

 

I have also tried about every driver from since Q3 2018 and they all have had the same problem. I've used the registry edit to switch to gaming mode and it still didn't help.