Which M.2 slot for boot drive ?

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   Sorry for the duplicate posting, I put this in the wrong forum earlier.

I just bought a B365M Pro4 mobo & have a question about the M.2 slots, which I?e never worked with before.

Which M.2 slot should be used for the boot drive, M2_1 or M2_2 ?

The Quick Install Guide & the User Manual state: If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled.

That would seem that M2_1 could go either way & be considered a universal drive for booting.

OTOH is a shared slot recommended for a boot drive?

Which is the BIOS usually set for by default? 

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Mike99 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 15 May 2020 Status: Offline Points: 359	Post Options Post Reply Quote Mike99 Report Post Thanks(0) Quote Reply Topic: Which M.2 slot for boot drive ? Posted: 15 May 2020 at 9:00am
	Sorry for the duplicate posting, I put this in the wrong forum earlier. I just bought a B365M Pro4 mobo & have a question about the M.2 slots, which I?e never worked with before. Which M.2 slot should be used for the boot drive, M2_1 or M2_2 ? The Quick Install Guide & the User Manual state: If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled. That would seem that M2_1 could go either way & be considered a universal drive for booting. OTOH is a shared slot recommended for a boot drive? Which is the BIOS usually set for by default?

ASRock_TSD Members Profile Send Private Message Find Members Posts Add to Buddy List ASRock_Official Joined: 20 Mar 2015 Status: Offline Points: 8847	Post Options Post Reply Quote ASRock_TSD Report Post Thanks(0) Quote Reply Posted: 15 May 2020 at 10:01am
	Dear Mike99, Thanks for posting! Both M.2 slots can be used to install an SSD with OS in it. If you are using PCIe M.2 SSD, please plug it into the first slot. (M.2_1) If you are using SATA M.2 SSD, please plug it into the second slot. (M.2_1) With thanks, ASRock TSD

Mike99 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 15 May 2020 Status: Offline Points: 359	Post Options Post Reply Quote Mike99 Report Post Thanks(0) Quote Reply Posted: 15 May 2020 at 2:24pm
	Thanks for the reply. Initially I read the printed B365M manual which says "If M2_2 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled". But then I mistakenly downloaded the B365 manual which said "If M2_1 is occupied by a SATA-type M.2 device, SATA3_0 will be disabled." I was perplexed & didn't realize this until just now. Thanks again.