I'm having a bit of trouble with my PC setup. My graphics card (GPU) is supposed to operate at PCIe x8, but when I check in GPU-Z, it shows x8 4.0 @ x1 4.0 instead. The only time it runs correctly at x8 is when I go into the BIOS and switch the PCIe setting to either *Gen 5* or *Auto*. After I restart, GPU-Z then reflects x8 4.0 @ x8 4.0. However, every time I turn off my PC and then power it back on, it reverts back to x8 4.0 @ x1 4.0, meaning I have to change the BIOS settings all over again. I've cleaned the GPU and PCIe slot, but that hasn't resolved the issue. My GPU is installed in an x16 slot on my motherboard, but I also have an M.2 SSD that I suspect may be using PCIe lanes, limiting my GPU to a maximum of x8. I also have additional HDDs and SSDs, but I'm unsure if they affect this. What's going on here, and is there a permanent fix so I won't need to adjust the BIOS so often?
3 Answers
Hey, could you share what CPU, GPU, and motherboard you're using? Also, where exactly is your SSD installed? It might help to know those details. Have you benchmarked your GPU with 3DMark Timespy? Comparing your scores might offer insights if they align with similar setups.
I remember having a similar issue. Sometimes BIOS settings can be finicky, particularly with power settings or saving profiles. Make sure you're saving the BIOS settings properly after making adjustments. Also, it might help to ensure that all the latest drivers and BIOS updates for your motherboard are installed.
It sounds like when your GPU is idle, GPU-Z might be dropping down to x1 for power-saving reasons. There's a question mark next to the Bus Interface in GPU-Z; try clicking that to initiate a rendering test. If your GPU stays at x1 during the test, then there could be an actual issue with your settings.
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