Question RX 7800 XT on MSI MPG EDGE B850

[cureinside]

I'm using dual monitor setup. But on the first boot, all shown is black screen and no error indicator on the motherboard. So I try to plug one monitor into motherboard display output since 9800X3D has iGpu. I'm able to boot, and since I'm not changing storage, I can enter Win 11 but only with mobo display.

Previous setup:
- MSI B5450 gaming plus
- Ryzen 5 2600
- Sapphire RX 7800 XT Pure
- Corsair Vengeance DDR4 32Gb 3000Mhz
- (Previous GPU) MSI RX 580 8Gb (not used)
- NZXT 1000 watt gold
Upgrade setup:
- MSI B850 Edge TI WIFI
- Ryzen 7 9800X3D
- Sapphire RX 7800 XT Pure
- Predator Vesta DDR5 32Gb 6000Mhz
- NZXT 1000 watt gold

What I've done so far:

- On Device Manager, when I try to show hidden device, the RX 7800 is listed as "not connected", so I uninstall the driver and reboot. Nothing happened.
- All drivers from MSI utility center has been installed, and I've also installed AMD Software: Adrenaline Edition (WQHL), then reboot. Nothing happened.
- When I try to update bios, its up-to-date.
- I re-assemble my old setup PC setup to test the RX 7800 on B450. It works fine. Which indicates the RX 7800 works fine.
- I put the RX 580 into B850. It works fine. Which indicates the PCIE slot on B850 works fine.
- Use DDU to clean drivers.
- Currently, the PCIE input for RX is using 2 separate PCIE cable. Should I only use one then daisy chain?

I'm running out of ideas how to fix this. Any suggestion?

 

[Lutfij]

Welcome to the forums, newcomer!

since I'm not changing storage, I can enter Win 11 but only with mobo display.
You should reinstall your OS if that's what's pending after the platform migration.

MSI B850 Edge TI WIFI
+
When I try to update bios, its up-to-date.
BIOS version for your motherboard?

 

[cureinside]

Welcome to the forums, newcomer!

since I'm not changing storage, I can enter Win 11 but only with mobo display.
You should reinstall your OS if that's what's pending after the platform migration.

MSI B850 Edge TI WIFI
+
When I try to update bios, its up-to-date.
BIOS version for your motherboard?

The mobo BIOS version is 7E62v1A11. the same version with latest bios in the product support. If nothing can help till the end of the day, maybe I'll reinstall OS
I've reinstall the OS. Its still not detected anywhere