PC 'Forgetting' boot drive

Build in sig.

Hi Folks, recently upgraded to Ryzen. I have noticed that every now and then the pc with fail to boot say BOOTMGR (Or similar) is missing.

When I go into the BIOS I notice that my boot drive has dropped down to third on the list. I reset it to number 1, save and reboot. All okay.

Sometimes it will be fine for a few weeks, sometimes barely a day and then it happens again.

Any ideas? I am running the latest drivers and BIOS version from Gigabyte.

It's not the end of the world, but it's very annoying!

If we are talking about a SATA drive make sure it is plugged into the SATA0 port (top left I believe) on the motherboard. If it keeps on happening anyway I would replace the SATA cable and may be try another drive.

If you are booting from a m.2 SSD I would reseat the drive and try another one if the problem persists.

Does the UEFI show the correct date/time every time this happens?

Yes. correct date and time shows etc. I will check SATA cable and motherboard slot.