Question No graphics signal after installing PCIe wifi adapter

[mrpsuri]

I upgraded my PC's motherboard, CPU, and RAM yesterday, and everything went great except for the PCIe wifi adapter (TP link Archer T5E). As soon as I installed the wifi adapter into one of the PCIe slots, my monitor stops receiving any DisplayPort signal and the EZ debug LED indicating a graphics card issue turns on. Without the wifi adapter, everything works as it should.

My GPU is in the PCIe x16 slot of course, and I have tried every other PCIe slot for the wifi adapter. When in with the wifi adapter, the GPU fans spin, so I don't think it's a power issue. Every time I have installed the wifi adapter, my PC has been off and unplugged. My GPU and wifi adapter worked perfectly fine together in my last build, so I know the adapter works. I went from an MSI B550 Gaming plus mobo to an MSI Z790 Gaming Plus Wifi (the onboard wifi adapter gets poor signal, so I'd like to use my adapter instead). I tried taking the GPU out, keeping the adapter in, and using the onboard graphics through an HDMI cord into my mobo, and I still had no graphics signal. That almost suggests to me that this new mobo is trying to run graphics through the wifi adapter (?), so I haven't found any configuration (with or without the GPU) that this wifi adapter works and I have video signal. I have also tried downgrading my PCIe 16 slot to gen 1 speed, but still had the issue. I haven't been able to enter the BIOS with the wifi adapter in to check hardware/voltages because I've had no video signal.

Any thoughts? Really appreciate all of the help in advance

 

[COLGeek]

When you changed from an AMD baseline to an Intel baseline, did you also completely re-install Windows?

When you installed the TP Link adapter, did you disable the onboard wireless adapter in the motherboard's BIOS?

 

[mrpsuri]

When you changed from an AMD baseline to an Intel baseline, did you also completely re-install Windows?

When you installed the TP Link adapter, did you disable the onboard wireless adapter in the motherboard's BIOS?

I did not completely re-install windows, but I did disable the onboard wireless adapter. I'll give it a shot here! Thank you.

 

[mrpsuri]

When you changed from an AMD baseline to an Intel baseline, did you also completely re-install Windows?

When you installed the TP Link adapter, did you disable the onboard wireless adapter in the motherboard's BIOS?

I did not completely re-install windows, but I did disable the onboard wireless adapter. I'll give it a shot here! Thank you.

I just tried re-installing windows, and still no luck. Double-checked that the onboard wireless adapter was disabled in BIOS also. I'm starting to think that this might be a motherboard hardware setting issue?

 

[COLGeek]

Aside from disabling the on-board wireless, is the BIOS running default settings?

When using your on-board wireless, did you have the antenna attached?

Also, do you have both 8-pin and the 24-pin power connections on the motherboard firmly attached?

 

[SkyNetRising]

onboard wifi adapter gets poor signal, so I'd like to use my adapter instead

Did you install external wifi antenna on integrated wifi?
Without antenna installed - wifi signal will be extremely poor/nonexistent.

 

[MEMOFLEX]

Out of interest what BIOS version are you using for the board?

Also what version of windows? I take it when you reinstalled windows you did it from a USB stick and not from a windows reset?