Joseph_Joestar wrote on 2025-10-11, 19:24:
Tried undervolting my RTX 3060 via MSI Afterburner, specifically using the curve editor. Managed to shave off 48W without lowering the boost clock from its usual value. The GPU temperature under full load also dropped by around 9C, which is pretty awesome. As an extra bonus, the card is now much quieter as well.
Really happy with these results.
Today, I cleaned the card and repasted it with Duronaut, which made the temperature drop by another 6C. For reference, I bought this Gainward RTX 3060 12GB second hand, so I knew I'd need to do this eventually. However, the procedure didn't go as smoothly as I had hoped.
After my initial repaste attempt, the temperature actually increased by 7C, which left me very confused. So I re-opened the card, and double checked everything. While meticulously examining the photos that I took earlier, I realized my mistake. Turns out I accidentally put the plastic shim that sits around the core the wrong way (rotated clockwise), which likely prevented the GPU die from making proper contact with the heatsink. After that was sorted out, I repasted the card once again, closed everything up, and braced myself for the result. This time, everything was ok, and GPU temperature dropped by the aforementioned 6C.
If anyone's curious, I used MSI Kombustor for putting the card under full load, while keeping the fan speed fixed at 70% via MSI Afterburner. This ensured that my "before" and "after" measurements would be consistent, as long as ambient temperature remained the same of course. After all that effort with undervolting and repasting, my card now tops out at 57C under full load, when fan speed is fixed at 70% and with an ambient temperature of 21C. If I put the fan back to "Auto" (which is the default setting) GPU temperature hovers around 64C in demanding games that nearly max out the load. The card is also blissfully quiet now, which is what I was actually aiming for. Good times!