Is the Maxsun B850M WIFI causing lag during street sprints?
While sprinting through the streets of Kyoto, I noticed these tiny 0.2-second hitches that are absolutely jarring on a 144Hz monitor. It turns out the Maxsun MS-Terminator B850M WIFI was defaulting the PCIe slot to Auto, which occasionally dipped back to Gen 3 speeds, causing the data throughput between the GPU and CPU to fluctuate around 15.8GB/s. I first tried enabling 'Prefer Maximum Performance' in the NVIDIA drivers, but that did absolutely nothing for the hardware link, which was honestly frustrating. I eventually dove into the BIOS, navigated to Advanced, then PCIe Configuration, forced the link speed to Gen 4, and disabled the Link State Power Management. After checking GPU-Z, the read/write bandwidth locked in at a steady 31.5GB/s, and those micro-stutters vanished. Interestingly, the system failed to boot twice after the first Gen 4 tweak; I had to reseat the GPU and clean the gold fingers before it stabilized. With the chipset temps sitting at 52-58℃, everything is rock steady now. I used the motherboard utility to export and save this I/O config.
