Problem with starting the PC Issue during booting the computer
Problem with starting the PC Issue during booting the computer
I have a computer experiencing these issues: 1- It sometimes starts but shows no screen, Windows boots fine yet no display, and it only works after restarting about half the time. 2- After booting, it becomes slow, freezes, and then turns black occasionally, though it recovers later. 3- If the display is on but performance remains poor, I can still run tests. The problem seems linked to low GPU power consumption, which should drop to around 95W, but it fluctuates between 40–60 with dips or spikes to 90s. GPU stats show 100% usage, high core clock, and temperatures in the 70s. Pcie input is stable at 12.33V. Using HWINFO data: if everything works normally, expect similar results. For Pcie +12V input, max is about 12.13–12.14V. If it runs without issues, it stays consistent for hours even under heavy load. 6- The PCIe bus is always X16 3.0 underload at 8.0Gb/s; with no load it’s X16 1.1, 2.0, or 3.0 depending on the system. "HWINFO" shows what I attempted: 1) Replaced GPU, 2) Swapped GPU connector, 3) Reinstalled CPU to check for bent pins, 4) Cleaned GPU pins, 5) Forced BIOS to set PCIe X8 for GPU. In benchmarks, no problem was found. The only solution that helped was forcing the PCIe X8 configuration in BIOS."
Normal performance patterns occur when the PCIe interface reduces speed to conserve power or resources. It seems you're on the right track. The PCIe interface can handle speeds from x1 up to x16 based on available connections. If x16 causes problems while x8 functions well, the issue likely lies in the connection or the connector inside the PCIe slot, which may only be active during x16 operation. This could stem from the motherboard, graphics card, or the physical connections themselves. Identifying the source can be challenging. Here are some suggestions:
Consider relocating your graphics card to a different PCIe slot. However, secondary slots will only support up to x8, so this isn't ideal. Instead, configure the main PCIe slot for x8 operation. Your graphics card should run smoothly at this speed, and performance differences should be negligible.
If you have a powerful processor paired with a high-end GPU, it might become a bottleneck under certain conditions. With your current setup, x8 should provide ample bandwidth.
Examine the graphics card for any irregularities in the contact points. About half of the contacts, especially those farther from the video ports, are exclusive to x16 mode. Gently rub these areas with an eraser to clear any debris. If the problem persists beyond the contacts, it may not be worth sending it to a repair shop.
Testing your graphics card in another computer can help determine if the issue is with the card or the motherboard. If it works fine there, the motherboard is likely the problem. If it fails again, the card itself is faulty. This approach should give you clarity on the root cause.