Question Asus ROG STRIX 2080ti OC not working with X670E/Ryzen 9 7900X

Nov 11, 2022
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I just put together a new PC minus the GPU and tried to use my 2080ti in it and it will not work. The gpu does not show anywhere in device manager. I have tried to limiting the pcie slot to 3.0, and first preference to the dedicated gpu. A mobo bios update didn't do anything either. I have tried two different X670E boards (ASUS TUF gaming and ASROCK PRO RS . the computer does boot with the GPU installed but does not recognize that there is a dedicated gpu there. I can't install drivers because the system doesn't see the card so it is not a driver issue. I do have both power plugs installed on the card. I have re-seated it multiple times. I have re-seated the CPU. The GPU does work in my X399/ 1900x board. I don't know what else to do here. I have an old gt1030 that works just fine in the X670 boards but not the 2080ti. If you have any ideas or need to know more information let me know.

All parts used in the new pc:

mobo: X670E-PLUS TUF GAMING WIFI
cpu: AMD AMD RYZEN 9 7900X
ram: G.SKILL 32G 2X D5 6000 C30 NRGB B
ssd: SAMSUNG E 2TB 980PRO NVME GEN4SSD
psu: CORSAIR HX1000 80+P FM ATX PSU
gpu: Asus ROG STRIX RTX2080TI O11G (The problem child)
 

Darkbreeze

Retired Mod
Are you connecting a display to the graphics card in addition to connecting one to the motherboard? Have you tried NOT connecting one to the motherboard? You do realize that you must connect to the graphics card, not the motherboard, in order for the discreet card to work, right?

Honest question, as a lot of visitors come here with similar questions and don't realize that.
 

Darkbreeze

Retired Mod
Yes, I realized that right after I posted it. Have to get used to Ryzen having basic iGPU now on all models. Changed the question as well.

Are you connecting a display to the graphics card in addition to connecting one to the motherboard? Have you tried NOT connecting one to the motherboard? You do realize that you must connect to the graphics card, not the motherboard, in order for the discreet card to work, right?

Honest question, as a lot of visitors come here with similar questions and don't realize that.
 

Darkbreeze

Retired Mod
Are you trying to connect the 2080 ti via HDMI, DP, DVI or what? Do you have a different TYPE of display cable you can try?

You can also try removing all graphics cards and doing a hard reset.

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 hardware tables to reset in the boot manager.

It is probably also worth mentioning that for anything that might require an attempt to DO a hard reset in the first place, IF the problem is related to a lack of video signal, it is a GOOD IDEA to try a different type of display as many systems will not work properly for some reason with displayport configurations. It is worth trying HDMI if you are having no display or lack of visual ability to enter the BIOS, or no signal messages.

Trying a different monitor as well, if possible, is also a good idea if there is a lack of display. It happens.
 
Nov 11, 2022
3
1
15
0
Yes, I realized that right after I posted it. Have to get used to Ryzen having basic iGPU now on all models. Changed the question as well.

Are you connecting a display to the graphics card in addition to connecting one to the motherboard? Have you tried NOT connecting one to the motherboard? You do realize that you must connect to the graphics card, not the motherboard, in order for the discreet card to work, right?

Honest question, as a lot of visitors come here with similar questions and don't realize that.
Windows should still see the gpu wether or not I connect my monitor to it.
 

Darkbreeze

Retired Mod
Yeah, that's not always true. It really depends on the BIOS manufacturer, BIOS/UEFI settings and in some cases even Windows drivers or settings.

What is true on one platform might not behave the same way on another. I've seen my fair share of configurations where the BIOS would not recognize that a card was installed if it did not detect a signal from the display, and if BIOS does not recognize the card then Windows isn't going to. I've also seen some other strange behaviors so it's always a good idea to not make too many assumptions about what is or is not a hard fast rule.

If you are not willing to connect a display to the graphics card and not connect one to the motherboard, or connect one to both if you have the ability to do so to at least then SEE if it is actually being recognized in the BIOS/UEFI or device manager, then I don't know what tell you.
 

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