VGA no signal after upgrading from 3080Ti to 5070Ti

[Fium]

These are my specs:

MBO: Asus B550-E Strix
CPU: Ryzen 5800X3D
RAM: G.Skill Trident Z 4x8GB @ 3200CL14
SSD: WD SN850 1TB (boot drive - sits in m.2_1 slot) + WD SN7100 4TB (in m.2_2 slot)
PSU: NZXT C1200 Gold ATX 3.1

I've upgraded from Gigabyte 3080Ti Gaming OC to Asus Prime 5070Ti OC. 

I expected this to be a simple GPU swap.. oh boy was I wrong..

After swapping to Asus GPU I get "No display input" (black screen, with no BIOS or windows shown) on my monitor and Asus MBO shows a white light (no VGA signal). 

The only thing that helps, and after which I do get a signal on my monitor is erasing the RTC RAM on my motherboard. After doing that BIOS shows up with following message:

"The VGA card is not supported by UEFI driver. CSM settings have been changed for better compatibility."

I can then enter BIOS with F1 and after saving changes and restarting, windows shows up and I can use my PC without issues (even overclocking and undervolting the GPU and playing games with DLSS/MFG). 

But after a restart or pc power off/on, I again get a black screen with MBO showing white light. 

I had no such issues on 3080Ti.

Things I've tried:

- BIOS update (I am on the latest BETA version of B550-E bios).

- Clear CMOS

- Flash NVIDIA GPU Firmware update that supposedly fixes the black screen issues

- Switch from provided ASUS PSU adapter to using the 12vhpwr cable that came with my PSU)

- Switch PCIe slot to Gen3 & Gen 4 

- Disable Gsync (VRR) on my monitor 

- Disable DSC on my monitor

- Use HDMI and DP cables 

- Play around with BIOS CSM settings (reseting and generating new keys)

The only thing that had any lasting effect was  reinstalling Windows 11 > this gave me the best results, since things were working as expected even after multiple restarts. But when I went to power on the PC the next morning, it again greeted me with no VGA signal..

I am really desperate right about now and don't know which troubleshooting steps to take further. All my components work great when everything is working and I had no such issues with 3080Ti (that was running at Gen4 x16 speeds).

What else can I do?

[Baalberith_NL]

Maybe an option might be moving the SSD from m2.2 to m2.4, due to lane sharing on m2.1 and 2 one same chip.

Might be worth a try.

Remco

[Fium]

m.2_1 and m.2_2 don't share the same lanes - m.2_1 is directly connected to CPU, while m.2_2 goes through motherboard chipset first..

The issue has been resolved - it was a faulty graphics card and I had it replaced for another (gigabyte 5070 Ti works without issues)

[CooLerSIK]

Sorry for my English.
Try waking up your monitor before turning on your PC. Turn it off and on again. Or simply open a settings menu, or hold down the button that selects the video output.
Then turn on your PC while the monitor is awake. I think that should help. We're having similar issues. I have a 5080.

[Fium]

I've tried that as well, but it didn't work. In the end, issue was with faulty GPU that had to be replaced.

[Scotty_Pea]

I have the exact same issue with a RTX 4070 TI Super on my Wife's computer and a RTX 4080 Super on mine... The problem is the RTX 4000/5000 Series video cards have issues displaying simple VGA output and will only have video output when Windows loads the Nvidia Driver. 

The work-around I have found to be 100 percent reliable is to switch from Displayport to HDMI.

If you like running Displayport due to it having G-Sync and some higher refresh rates on the monitor then that is fine... When needing to access the BIOS or run in safe mode for any reason just switch back over to using the HDMI cable.

Hope this helps.

[Fium]

Issue was not fixed for me when switching to HDMI cable. And even if it was, I would still RMA the card because I don't want to rely on single HDMI port on my graphics card while 3 remaining display port ports have issues..Unacceptable for a new graphics card

[Silent_Scone]

Hi @Fium 

1. Just checking, no riser cable involved here?

2. Also, I can't see any mention of a monitor. Can you specify, and also let us know if you've updated the firmware?

3. Whilst the symptoms strongly suggest a UEFI/GOP initialisation/firmware problem, given everything you've tried, I'd still recommend both updating the FW for the monitor and trying on a different monitor or perhaps a TV if available.

4. Have you checked the ASUS vBIOS update too via the support site? There's a recent one.

[Fium]

1. I am not using a riser cable, GPU was inserted directly into the first PCIe 4.0 x16 slot on my motherboard 

2. Monitor I am using is ASUS OLED XG32UCWG - firmware was updated to latest M103 version

3. I've also tried plugging my PC into my TV via HDMI (LG C2) - I had same issue, as I did on my monitor.

4. I did check that vBIOS update tool but it said I was already on the latest BIOS and there was no update 

Either way, I've already RMAd my GPU as faulty and bought a gigabyte 5080 GPU that works without issue in the same PC connected to same monitor.

[Scotty_Pea]

I believe my issue is monitors that are display port 1.2 versus my wife's and my 4070/4080 GPU's that are DP 1.4... Never had this issue with my old RTX 2080 TI or my wife's old RTX 2070...

I don't really use Gsync so I am OK with running our monitor(s) via HDMI as I like to see the screen accessing, updating the BIOS or occasionally running Windows in safe mode to troubleshoot Windows updates.