Solving CPU spikes on Galax B760M D4 Wi-Fi in AC Shadows
Right in the middle of a stealth kill, the game would freeze for 0.2 seconds. In an action game, that's basically a death sentence. Task Manager showed that the wireless driver on the Galax B760M D4 Wi-Fi Black Knight was spamming interrupt requests, causing CPU Core 0 to spike to 92-98%. I tried killing every single background app, but the stutters stayed, which told me this was a driver-level nightmare. I installed the latest Intel wireless drivers and went into Device Manager to disable 'Allow the computer to turn off this device to save power,' then optimized the IRQ priority. In RivaTuner, the CPU spikes dropped from 20-40% down to 5-12%, and the game finally felt smooth. I did have some weird Wi-Fi disconnects right after the update, but a router reboot fixed it. Board temps are 54-60℃ and the NIC chip is at 45-52℃. Latency tests show the jitter is gone. It's finally playable.
