TerryChan479
New member
I received my order for a liquid series PC recently. It has a RTX 4090 GPU on a ROG STRIX Z690-F motherboard. However, the GPU wasn't being detected.
Here are the symptoms:
- I could only boot the PC with the monitors connected to the iGPU through the HDMI/DP on the motherboard. If I only connect to the dGPU, I get a white LED (VGA error) on the motherboard and it doesn't boot.
- The GPU is not shown on Windows Device Manager.
- I cannot install a driver because the installer says there is no NVIDIA device.
- In the BIOS, PCIEx16_1 (where the GPU is connected to) is shown as "Not present".
- Reseating the GPU did not help.
- Changing the PCIEx16 mode from Auto to Gen4 or Gen3 did not help.
- Resetting BIOS / CMOS did not help.
- Presumably the GPU got enough power from the PSU, because there is no warning light on.
- When another (cheap) GPU is plugged into the same PCIe slot, it gets power from the board for its fan, but is still not detected.
Any idea what is at fault and what I can do to fix? I know it looks grim, but I am really hoping that there is still something I can try, before having to send this gigantic 50kg beast back (it's a Thermaltake Tower 900), which is gonna cost both me and PCS a lot of time and money...
Here are the symptoms:
- I could only boot the PC with the monitors connected to the iGPU through the HDMI/DP on the motherboard. If I only connect to the dGPU, I get a white LED (VGA error) on the motherboard and it doesn't boot.
- The GPU is not shown on Windows Device Manager.
- I cannot install a driver because the installer says there is no NVIDIA device.
- In the BIOS, PCIEx16_1 (where the GPU is connected to) is shown as "Not present".
- Reseating the GPU did not help.
- Changing the PCIEx16 mode from Auto to Gen4 or Gen3 did not help.
- Resetting BIOS / CMOS did not help.
- Presumably the GPU got enough power from the PSU, because there is no warning light on.
- When another (cheap) GPU is plugged into the same PCIe slot, it gets power from the board for its fan, but is still not detected.
Any idea what is at fault and what I can do to fix? I know it looks grim, but I am really hoping that there is still something I can try, before having to send this gigantic 50kg beast back (it's a Thermaltake Tower 900), which is gonna cost both me and PCS a lot of time and money...