Fixing power ripple on Galax B760M D4 Wi-Fi for R6 Siege?
Absolute game changer—swapping the cables boosted my minimums by 15 FPS! I was using a Galax B760M D4 Wi-Fi, and at 200+ FPS, the 12V rail ripple was hitting 78mV, which caused micro-stutters in the GPU core voltage. I tried capping the FPS at 120 in the driver, which stopped the drops but added way too much input lag for a competitive shooter. I ended up replacing the single 8-pin daisy-chain cable with two independent power leads and redistributed the peripheral load. With an oscilloscope, I saw the ripple peak drop from 78mV to a clean 30mV - 38mV, and frame times tightened from a messy 4-10ms to a rock-solid 3-5ms. I had a scare where the PC rebooted after the swap due to a loose connector, but once I seated them properly, it was golden. PSU internal temps are 40°C - 46°C and it's dead silent. Voltage fluctuation is now just 0.01V - 0.03V.
