Question Undervolting RX 6600 to reduce temp ?

T9shuvo

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Mar 30, 2020
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I live in South Asia, and the summer temperature here goes as high as 37-39 C.
While playing Hogwarts Legacy yesterday, I noticed that the GPU temperature hit 79 C. I've heard that undervolting the GPU helps lower temperature but has little effect on performance. So, I'm thinking about doing that, need some advice on how to do that, and what are some of the settings?

I have a Sapphire Pulse RX 6600, paired with Ryzen 5600 in an MSI Pro B550 P Gen3 Motherboard. I have a PC case with 3 front intakes and one rear exhaust fan. (will add one top exhaust fan soon)
I have customized GPU fan curves by using Adrenalin software but I have never undervolted or overclocked the GPU before.

https://www.amazon.com/Sapphire-Technology-11310-01-20G-Radeon-Graphics/dp/B09JHRQY4Y
 
Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:

Often times people orient their fans in the wrong manner or they're working with the wrong fans for their setup, leading up to negative results. You might also want to mention how the fans in your case are hooked up to your motherboard/platform, apart from their makes and models. That being said, you could read through this guide.
 
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https://www.amd.com/en/support/kb/faq/dh2-020

It looks like there's an option to have the software undervolt the video card:
DH2-020-03.png


Otherwise you'll have to do manual tuning and adjust the V-F curve
DH2-020-07_0.png


Do small increments only, then test with something like 3DMark Time Spy or Unigine Superposition.
 
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CPU: Ryzen 5 5600
CPU cooler: Stock Cooler
Motherboard: MSI pro B550 P Gen3
Ram: Geil Orion 3200Mhz 8×2 GB
SSD/HDD: Transcend 110Q NVMe SSD 500GB
GPU: Sapphire Pulse RX 6600
PSU: Thermaltake Smart BM2 550w bronze
Chassis: Thermaltake Versa J23 TG RGB eddtion
OS: Windows 10 Pro 64 bit
Monitor: Viewsonic VX2276 SH 22"

3 front 120mm RGB intakes, 1 rear 120mm non RGB exhaust,
https://www.thermaltake.com/versa-j23-tempered-glass-rgb-edition.html
 
Take off the front panel entirely and see if your temps drop. If they do, then your case is the problem not the GPU. The fans bundled in that case aren't something to write home about either. Long story short, the case has a blocked off front panel, the fans also aren't doing much apart from lighting things up.
 
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Take off the front panel entirely and see if your temps drop. If they do, then your case is the problem not the GPU. The fans bundled in that case aren't something to write home about either. Long story short, the case has a blocked off front panel, the fans also aren't doing much apart from lighting things up.
Thank you, I will do that, probably need to change the fans, I'm really frustrated with this case.