Hi,
I purchased an RTX 5090 FE card last week and I have not been able to get it to work... the issue I am having is that the card powers up (fans spin and RTX logo lights turn on) but I don't get any display output and the VGA debug LED stays constantly on when the POST sequence checks for the GPU. This is with both DP and HDMI cables.
My system specs are as follows...
Intel i9 14900KS, ASUS Z790 Maximus Extreme (BIOS v3001 which is the latest on the product page), 64GB RAM, RTX 4090 FE (existing GPU), 1TB 980 Pro + 2TB 990 Pro SSDs, SB AE9 sound card, ROG PG32UQX display
The system works perfectly fine with my 4090 FE card but the 5090 isnt being detected at all in the BIOS (I have tried using the 4090 as primary and the 5090 as secondary and the BIOS only detects the 4090 GPU. For the secondary slot it doesnt show any speed like x8 /x16 like it does for my 4090 which is detected.
Have also tried changing the speed to Gen 3 and Gen 4 but didnt have any luck with that.
The 5090 however works perfectly fine at the test bed at the local service center (which is on an older system) and I even ran the UEFI firmware update tool there which updated but I still cant get the card to work.
I have done a CMOS reset as well and all power connections look fine and have tried reseating the card properly as firmly as it can go but no luck.
Any advice / suggestions would be greatly appreciated as I am not sure where the problem lies and am at my wit's end at troubleshooting this.
