How to solve write latency issues on the Fanxiang S910Max?
Hauling cargo across rugged mountains was interrupted by random freezes that made me want to throw my drive out the window. The Fanxiang S910Max 1TB write latency was swinging wildly between 12ms - 85ms, and 4K random writes were tanking, causing massive system I/O wait times. I tried enabling every 'acceleration' toggle in the driver, but that was a waste of time—it actually caused random restarts while idling. I went into the BIOS, disabled ASPM L1 power management, and forced the PCIe 5.0 x4 mode. In 3DMark storage stress tests, latency spikes were crushed down to 15ms - 22ms, and the stutters vanished. I did accidentally disable my other M.2 drives when I first locked the mode, but I sorted it out by remapping the lane allocation. Temps are running hot at 65℃ - 71℃ with the fans at full blast. I used a config export tool to save these settings, but the fan noise is practically a jet engine.
