How to unlock PCIe 5.0 speeds for Fanxiang S910PRO in BIOS?
When I saw my read speeds capped at 3500MB/s, I nearly lost it—it's an insult to PCIe 5.0 tech. The Fanxiang S910PRO 2TB should hit 10GB/s, but my motherboard had it locked in a 'compatibility' PCIe 3.0 state. I tried forcing the bus properties in Device Manager, but that just gave me a series of BSODs, which was honestly a bit exciting. I finally flashed the latest BIOS and manually changed the M.2 slot from 'Auto' to 'Gen5'. Sequential reads immediately shot up to 9200-9800MB/s, and map loads dropped from 8 seconds to a snappy 1.2 seconds. The catch was that temps hit 88℃ instantly under load, so I had to add an active cooling fan to keep it around 65-72℃. Voltage is steady at 5.5-7.8V and latency is down to 18-22ns. Frame times are now a rock-solid 5.1-6.4ms.
