There is a PCie slot with an x8 GPU that functions, but not the x16 GPU.
There is a PCie slot with an x8 GPU that functions, but not the x16 GPU.
I've experienced an issue with my motherboard for some time now...
The top PCIe x16 slot functions with an older GT 710 (PCIe 2.0x8 at full speed), but not with a GTX 1650 (PCIe 3.0x16).
Both GPUs are operational.
The chipset in the x16 slot supports both, while the GTX 1650 lacks power connectors—my suspicion is it's related to the PSU.
BIOS fails to recognize the GTX1650 but detects the GT710.
When running the GTX 1650 in the x16 slot and the GT710 in the problematic x16 slot, both are detected, though not the reverse.
No video output appears when the 1650 is placed in the top slot and the VGA error light flashes (no boot).
If the 1650 is in the top slot but the 710 is in the bottom one, there are no errors, but neither is recognized by BIOS or Windows.
It seems like a dead end, but the warranty is expired, so any temporary solutions would be appreciated.
Here are the specifications:
- 16GB DDR4 3200 MHz 2x8 GB RAM
- Ryzen 3800X
- GTX 1650 / GT710
- MSI MB X570 Gaming Edge WiFi
SOLUTION:
Observing that the older GT 710 worked with PCIe x8, I suspected a problem with the remaining pins in the x16 slot.
I applied masking tape to cover the extra unused pins on the GT710's PCIe connector to test compatibility.
It functioned successfully.
I repeated the process with the GTX1650, connecting it only in x8 (leaving 57 pins untapped) to bypass faulty pins.
This resolved the issue...
I also tried masking tape on the GPU's PCIe connector where the motherboard's defective pins extended.
Hope this assists someone instead of them having to solve it alone like I did.
😀