[SOLVED] m2 SSD not found any more after upgrading GPU?

[Alexa90]

I have 4 hard-drives, 3 of them are normal / 2.5" SSD (Samsung EVO 850).
And the last one is a m.2 (Samsung EVO 960), where boot and Windows is installed.

When I have my RTX 2080ti plugged in, everything works just fine.
However, when I swap the RTX 2080ti to a RTX 3090 card, the m.2 is no longer visible in the BIOS and I cannot boot to the Windows.
Why does that happen? If I swap back to RTX 2080ti, it works again. But not with the RTX 3090.
I have tried putting the RTX 3090 in the PCIe 8X slot instead, same problem. The m2 drive is no longer found.

I have tried disconnecting the 3 other SSD so only the m.2 is connected, but that made no changes.

Motherboard: RAMPAGE V EDITION 10 (latest bios too)
CPU: Intel Core i7-6950X
GPU: RTX 2080 T
RAM: 32GB
PSU: Corsair AX1200i
OS: Windows 10

 

[Ralston18]

Any LED's lit? Any beep code patterns?

Switch perhaps?

Does the following User Manual link apply to your motherboard?

https://dlcdnets.asus.com/pub/ASUS/..._10/E11861_RAMPAGE_V_EDITION_10_UM_V2_WEB.pdf

(Verify that I correctly matched motherboard to manual.)

Maybe a switch.

Reference the User Manual to double check both the physical component installations and any associated configuration settings.

Start with physically numbered Page 1-12, Item, 7.

However, before actually doing anything I recommend reviewing the entire User Manual and making note of the necessary/applicable configuration settings. Both defaults and any that may have been changed.

 

[Alexa90]

No LEDs, no strange QCode or beeps. The system starts, but fails to boot because of no OS / boot drive.
The error I get is what you get with no boot driver, it just loops back to BIOS, and there is no m.2 drive to be seen.
As soon as i swap back to the 2080ti the motherboard sees the m.2 and it boots. But when the 3090 card is in, the m.2 is gone.

I have tried clearing CMOS, loading the default settings on the motherboard. It does not help.
I'm kinda confused and lost, how a new graphics card can make a m.2 drive stop working.

(Yes, you found the correct manual)

 

[ragnarok0274]

Try moving your boot drive.
It could be that that M.2 slot is disabled for some reason as the 3090 uses PCIe 4.0, and the board uses PCIe 3.0/2.0.
No idea really - but it's worth a shot!

 

[Alexa90]

Try moving your boot drive.
It could be that that M.2 slot is disabled for some reason as the 3090 uses PCIe 4.0, and the board uses PCIe 3.0/2.0.
No idea really - but it's worth a shot!

I only have one m.2 slot on the motherboard. I does feel like the m.2 gets disabled when I plug in the 3090.