How to fix resource scheduling on MSI MPG Z890 EDGE TI WIFI?
While exploring open-world planets, I noticed these micro-stutters in frame time that honestly shouldn't happen on a high-end Z890. After digging into the logs, I found the default power-saving strategy was causing a 12-22ms wake-up delay on the PCIe bus during low-load transitions, which absolutely killed the frame pacing. I first tried enabling High Performance mode in Windows, but the bus latency persisted—a total waste of time. I had to go deeper into the BIOS, navigated to Advanced $\rightarrow$ PCIe Configuration, and disabled Link State Power Management, then switched C-States to High Performance. In AIDA64, my system latency dropped to a rock steady 58-62ns. One heads-up: disabling C-States bumped my idle power draw by about 25W, so I had to tweak the voltage offset to find a sweet spot. VRM temps stayed around 52-60℃. I used the BIOS export tool to save these settings, and it's been solid since.
