How to fix bus scheduling on MSI A520M-A PRO in Dead Space 2?
Walking through those claustrophobic ship corridors, I noticed the MSI A520M-A PRO bus bandwidth was totally choking under high-frequency resource requests. Checking AIDA64, the CPU I/O wait times were swinging wildly between 12ms - 25ms, which caused those classic micro-stutters whenever the engine loaded new textures. I first tried enabling Fast Boot in BIOS, but that was a disaster; it didn't stop the freezes and actually messed up the driver load order, which left me completely baffled. I then fired up the GamePP Resource Scheduler Panel, bumped the game process I/O priority to 'Realtime', and killed all redundant background disk scanning services.