2nd M.2 slot on Gigabyte B560M DS3H

[Woodstock12]

My 2nd M.2 not recognised and I feel like I'm taking crazy pills trying to solve!

 

The issue: When I built my PC I ran a WD blue SSD in the M2P_CPU slot on my DS3H with Windows 10. Never really had an issue with it. Recently I upgraded to a 980 pro into that slot with Windows 11, was upgrading to 11 and figured may as well get an updated boot drive.

I've plugged the old WD blue into the M2A_SB slot but it's not recognised in either the BIOS or in Windows. I've tried reseating a few times, updating my BIOS, removed my 2TB HDD SATA cable to see if that made any difference, and triple checked I have an 11th Gen intel CPU to make sure both slots should be active.

Feel like I'm taking crazy pills! There must be something obvious I've missed but if not I'm guessing it's that I've got a dead WD blue or 2nd M.2 slot?

Hoping you can help!

 

Parts list: Mobo: Gigabyte B560M DS3H Micro ATX
SSD1: Samsung 980 PRO 1 TB PCIe 4.0 M.2
SSD2: WD_BLUE SN550 1TB M.2 2280 PCIe Gen3 NVMe
HDD: 2TB Seagate 7200RPM
Processor: 11th Gen Intel Core i5-11600K

Edited June 27, 2022 by minibois
changed font color to automatic

[JKRsega]

Try clearing the cmos?

[Woodstock12]

Thanks JKRsega! Can't believe I didn't think to try this but now it's showing!

[JKRsega]

No problem!  Love it when a plan comes together.