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post #11 of 201 (permalink) Old 07-10-2016, 12:13 PM
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Thanks, i will try this as well.

In the meantime i tested the right heatsink with thermal paste instead of thermal pads (i made sure they all have contact), but the temperature was still at 95°C after a few minutes. (3DMark as well as Furmark)



Not sure what i'm doing wrong here headscratch.gif
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post #12 of 201 (permalink) Old 07-10-2016, 12:24 PM
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@TheLAWNOOB
Thanks, i will try this as well.

In the meantime i tested the right heatsink with thermal paste instead of thermal pads (i made sure they all have contact), but the temperature was still at 95°C after a few minutes. (3DMark as well as Furmark)



Not sure what i'm doing wrong here headscratch.gif

I dont think you are doing anything wrong, I am thinking you just might be maxing them out in terms of how much heat they can remove with your current setup. Have you tried increasing airflow?



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post #13 of 201 (permalink) Old 07-10-2016, 12:24 PM
 
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The way your cooler is setup it might not have enough air flow over the VRMs.

Try putting a 120mm or 80mm fan directly on top or behind the VRMs.
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post #14 of 201 (permalink) Old 07-10-2016, 12:36 PM
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Tried this as well, temperature was slightly better (87°C but i tested just for a few minutes).
But i just had another idea, the voltage controller seems to read the VRM temperature from a simple external NTC instead of an actual sensor embedded into the VRM. (correct me if that is wrong)



If that's the TSEN1 (just a assumption on the picture) it more or less just cares about the immediate area temperature.



Edit:



Page 45:



So, the high temp is at 127°C and critical temp at 134°C.

At least i found TSEN2 NTC, so it's really working like i thought:

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post #15 of 201 (permalink) Old 07-10-2016, 01:48 PM
 
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Get a $10 infrared thermometer from amazon.

Problem solved.
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post #16 of 201 (permalink) Old 07-10-2016, 01:57 PM - Thread Starter
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I don't know if this will help or not, but I made sure I positioned a heatsink over the temp sensor;

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post #17 of 201 (permalink) Old 07-10-2016, 01:59 PM
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Seems like the thermal adhesive couldn't withstand the thermal discharge, great rolleyes.gif


JB Weld them together then adhere them to the chips with the thinnest coating of T.A.
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post #18 of 201 (permalink) Old 07-10-2016, 05:39 PM
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Get a $10 infrared thermometer from amazon.

Heatsink was 42°C

Hotspot on the back was 85°C
Rest was between 60-75°C

HWInfo reported 101°C

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post #19 of 201 (permalink) Old 07-11-2016, 01:57 PM
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Another test with 120mm fan, case was open and fan on 100%:



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post #20 of 201 (permalink) Old 07-11-2016, 04:05 PM
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My RX 480 @ Accelero Extreme IV



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