Question New RX 7900 XT not outputting video (Please help me)

Mar 21, 2023
Hi, I am in desperate need of help at the moment, I am losing my mind as I try to upgrade my GPU. To begin, here are my specs:

Intel core i7 12700k
32 GB Corsair Vengeance DDR5 5600 RAM
ROG strix B760-I Gaming WIFI
Powercolor Radeon RX 7900 XT
Cooler Master V850 SFX Gold 850W 80+ Gold
Samsung 970 Evo Plus 500 GB M.2 NVME

So I have been gradually upgrading my system over the last couple months, and the GPU was the last one to replace (GTX 1080). The when installed, the 7900 XT's fans spin, but there is no output detected. I made sure to reseat the graphics card, as well as the PSU cables. I even did so again after it failed to output a second time. I wanted to make sure that it wasn't a complete dud so I tested the 7900 XT on another system (intel i7 8700k, ASUS Prime z370-A, 32gb corsair vengeance DDR4 3200, 750W 80+ gold) and the card output just fine, all it needed was the proper driver install. I then tried to boot with native graphics to see if I could attempt to install the RX 7900 XT drivers prior to seating it again just to see if it would do anything, but the AMD software Adrenalin thin wouldn't allow for driver install without an RX card present. I then tested my new system again with the gtx 1080 just to make sure that I didn't damage the PCIE slot during the transfer but the system worked just fine. My BIOS version is up to date btw.

I'm currently losing my mind over here, I don't understand what the issue could possibly be, besides an incompatibility with the motherboard and the GPU, but there's nothing on the internet that would suggest that. If anyone has any advice for me I would greatly appreciate it because while I could RMA, I don't believe that there is anything wrong with the card. Thank you in advance for any and all suggestions.

(PS, I also considered that 850W could be too low, but since the card worked just fine on the 750W system, I figured that it isnt the problem).
Reinstall the card and all required connections, and be sure that the display cables are connected to the graphics card and not the outputs on the motherboard.

Then, do the following. If the CMOS battery is located under the graphics card on your motherboard and it is required to remove the card to access the CMOS battery, then do the hard reset procedure BEFORE installing the graphics card so you don't have to backtrack.

Do not SKIP or otherwise ignore ANY part of the procedure outlined below. No part of it is there just to be filler or because I just felt like adding something. Keep in mind, this is NOT the same process as simply using the clear CMOS jumper, or button, or any other method. This specific set of steps has usually at least about a 50% chance of resolving issues similar to yours when nothing else has worked.

BIOS Hard Reset procedure

Power off the unit, switch the PSU off and unplug the PSU cord from either the wall or the power supply.

Remove the motherboard CMOS battery for about three to five minutes. In some cases it may be necessary to remove the graphics card to access the CMOS battery.

During that five minutes while the CMOS battery is out of the motherboard, press the power button on the case, continuously, for 15-30 seconds, in order to deplete any residual charge that might be present in the CMOS circuit. After the five minutes is up, reinstall the CMOS battery making sure to insert it with the correct side up just as it came out.

If you had to remove the graphics card you can now reinstall it, but remember to reconnect your power cables if there were any attached to it as well as your display cable.

Now, plug the power supply cable back in, switch the PSU back on and power up the system. It should display the POST screen and the options to enter CMOS/BIOS setup. Enter the bios setup program and reconfigure the boot settings for either the Windows boot manager or for legacy systems, the drive your OS is installed on if necessary.

Save settings and exit. If the system will POST and boot then you can move forward from there including going back into the bios and configuring any other custom settings you may need to configure such as Memory XMP, A-XMP or D.O.C.P profile settings, custom fan profile settings or other specific settings you may have previously had configured that were wiped out by resetting the CMOS.

In some cases it may be necessary when you go into the BIOS after a reset, to load the Optimal default or Default values and then save settings, to actually get the BIOS to fully reset and force recreation of the hardware tables.