Looking to identify m.2 drive as OS drive

[dpj463]

Mobo: Gigabyte Z170 Gaming 7 Rev 1
I have both m.2 slots occupied with identical Samsung 950 pro 250gb nvme drives.
one drive is for the OS (windows 10 pro). The other drive is for game applications.
I have a 1TB m.2 on order to get more storage available.
I cannot remember which drive has my OS and which has my games. Is there a way to identify which slot on my motherboard the OS drive is inserted?
THanks for any help.

 

[USAFRet]

Power off.
Unplug one.
Power up.
See what happens.

 

[punkncat]

Agree with the above. If you have the ability to disable one in BIOS, you may not have to open the case.
You should also be able to see the drive in your boot options...but I can't recall if it tells you which "slot" (drive) it is.

 

[ingtar33]

pretty much the above. trial and error

 

[punkncat]

Lol, nevermind...go look in Disk Management and it will tell you where and what location your OS is on. Then it should be as simple as looking in your mobo literature to see which slot is which. (probably even written physically on the mobo)

 

[USAFRet]

Yeah, it might be labeled as M2-1 and M2_2.
In Disk Management, that might be labeled as Disk 0 and Disk 1. Or Disk 1 and Disk 2.

Maybe.

 

[Brian28]

The first M.2 slot is most likely the one closest to the processor.

 

[R0GG]

In your motherboard Bios you'll find the M2 SSD drives listed under different M.2 prefixes :
- M2D = top M.2 Slot and
- M2H = Bottom M.2 Slot

Where to look in the Bios :
*Peripheral > NVme configuration
*Bios Features> boot options and Hard drives priority

How to differentiate which SSD ?
- windows boot loader" attached to the M.2 SSD model name that carries the Operating system.
- Difference in the names/model of the drive names and their capacity.

 

[Brian28]

In your motherboard Bios you'll find the M2 SSD drives listed under different M.2 prefixes :
- M2D = top M.2 Slot and
- M2H = Bottom M.2 Slot

Where to look in the Bios :
*Peripheral > NVme configuration
*Bios Features> boot options and Hard drives priority

How to differentiate which SSD ?
- windows boot loader" attached to the M.2 SSD model name that carries the Operating system.
- Difference in the names/model of the drive names and their capacity.

OP already stated that the two drives were identical models and capacities.

 

[R0GG]

the OS M.2 is the first drive on your boot priority list and has "windows boot loader prefix attached to it's name" besides the MD2 or MH2 prefix