Solving pump speed issues for Valkyrie V360 Merlin?
The pump speed on this thing was acting crazy—jumping from 2000 to 4000 RPM randomly—which caused the CPU temp to swing between 60℃ and 85℃. It was absurd. These spikes triggered the motherboard's protection, making my FPS bounce between 100 and 40. I tried setting the pump to full speed in the software, but it sounded like a power drill and the temps still fluctuated, which was just frustrating. I eventually went into the BIOS, switched the pump header from DC to PWM, and raised the minimum voltage threshold from 5V to 7V to ensure it didn't dip under low load. The monitoring panel now shows core temps stable between 62-68℃ with jumps limited to under 3℃. I did have a brief moment where the pump stopped entirely after switching to PWM, but a BIOS update fixed that. Radiator fans now stay between 1100-1300 RPM. I used a config export tool to back up these PWM curve parameters, and the cooling is finally stable.
