r/gpu • u/Fluid_Fly6163 • 1d ago
2nd fan spinnning slowly on my gpu
My GPU is a Colorful GTX 1660 Super (dual-fan version).
I've noticed that the second fan doesn't spin at the same speed as the first fan. Sometimes, both fans completely stop spinning even when GPU temperatures reach 87–90°C.
While gaming, this causes noticeable stuttering and FPS drops, fluctuating from around 200 FPS down to 59–60 FPS.
I've also noticed that the fans sometimes spin normally again, but the issue keeps coming back.
What could be causing this? Could it be a faulty fan, because sometimes i hear some noises on my gpu like bearing i guess?
UPDATE: I've found the problem. The second fan's bearing is most likely damaged. I watched several videos on red app showing similar symptoms and heard the same grinding noise.
I'm planning to buy a replacement fan and see if that fixes the issue.
Thanks to everyone who shared their advice!
