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M.2 problems in both sockets

JamieLee2k
Level 7
So I recently got an m.2 drive and I first put it into the m.2_1 on my ROG Hero X mobo and booted up, it hung for ages but eventually booted and windows has detected it, I had to go to computer management but that's all fine. My problem is I am unable to get into bios now that I have the drive installed.
If I plug the m.2 into the m.2_2 socket I get a 78 error on the board and it never boots, I also have the same issue where I can't get into bios.

The m.2 I want to use as my main drive eventually but for now its a secondary drive to store my games.

I have even tried it with just the m.2 drive (as I have 4 other HDD's) and I still can't get into bios.

Does anyone know why I can't get into BIOS or how to fix it?
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1 REPLY 1

Saltgrass
Level 13
If you have 4 HDDs installed, are you aware of the SATA ports which cannot be used with M.2_1 and M.2_2?

Is this M.2 drive an NVMe or SATA? Model number available?

I never like to install on an M.2 drive with other Drives available, sometimes it messes up the install. So you might disconnect them all and try again.
Maximus Z790 Hero,
Intel i9-13900k
Intel BE200