Can't Find M.2 SSD

Feb 16, 2018
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My friend bought me a Samsung 860 Evo M.2 SSD

Its plugged into the motherboard but I cant see it in windows 10 or in the Bios,

Motherboard MSI Z170A SLI Plus
CPU i7 6700k
SSD Samsung 860 Evo M.2 SSD
 
Solution
Looks like your m.2 slot only supports PCI-e SSDs. The one you have is a SATA ssd. Even though it is m.2 interface, unfortunately, it is not compatible with your motherboard.
Start by making sure you have the latest bios version installed. There are MANY threads about a lack of support for all UEFI (Legacy ROM not supported) M.2 drives on these boards. Also, make sure that in the bios it shows enabled Windows 8.1/10 WHQL Support
and keep SATA Mode as AHCI.

Most likely this is a bios version issue. Update to latest bios THEN power off, unplug PSU from the wall, remove cmos battery for two minutes, put cmos battery back, power on, into bios, see if drive is detected.
 
How can you tell that Jim? Samsung 860 EVO comes in both SATA and PCI versions. I and others here have PCIe M.2 860 EVO drives that we've installed on a variety of Z170 boards. They never tend to work if the bios is not more recent than the drive. That board was released long before that drive was.

Am I missing something?
 
Ok, now I'm confused. The 860 EVO seems to be even NEWER than the 960 EVO, looks like they abandoned the numerical progression. This probably is back to being either a bios issue or maybe wrong form factor. Do you have an exact model number for YOUR 860 EVO?

Seems this drive comes in 2.5" SSD, SATA M.2 SSD AND PCIe M.2 SSD. This is a brand new drive released only recently and there is a good chance it is not yet supported on your board if you do not have a very recent bios version installed.

http://www.tomshardware.com/reviews/samsung-860-evo-ssd-review,5446.html
 
Hold that thought, or look into it. I gotta go do something but I can find you some specific information and a tutorial on that when I get back.

In the meantime, if you can identify WHAT bios version is currently installed, that would be really helpful.
 
As you can see in the Review link that was posted, ALL 860 EVO series drives are SATA and are NOT PCIe NVMe.

Your motherboard specs:
1x M.2 slot
- Supports PCIe 3.0 x4 standard, 4.2cm/ 6cm/ 8cm length M.2 SSD cards
- Supports PCIe 3.0 x4 NVMe

BIOS update won't help you as motherboard does not support SATA interface M.2 drives.
 
Yep. That was the conclusion I mostly came to as well, although, I have never heard of an M.2 drive, SATA or otherwise, not working in any other M.2 2280 slot, just at SATA III speeds.

This drive is clearly M.2 2280, same as any other NVME or SATA M.2 2280 drive, and should technically be usable in that slot unless there is something on that board that specifically says it does not support SATA M.2 devices on that slot.

https://pcpartpicker.com/product/G9rmP6/samsung-860-evo-250gb-m2-2280-solid-state-drive-mz-n6e250bw

The 960 EVO is an NVME M.2 2280 device, PCI. The 860 EVO is a SATA III M.2 2280 device. Unless I'm off my rocker, any M.2 2280 device should work in any M.2 2280 slot, with the exception of some motherboards that won't work with older Legacy ROM M.2 2280 devices.

I'm calling in reinforcements, because this is starting to piss off my sense of sensibility.
 

USAFRet

Titan
Moderator
No.
m.2 drives are either SATA based or PCIe based.

m.2 slots can be either, or both. Obviously only one at a time.

This particular motherboard only accepts a PCIe based drive.
A SATA based m.2 drive will never, ever work on it. No matter what magic dust you sprinkle on it or BIOS changes you make.

m.2 is only the physical connection type.
 

USAFRet

Titan
Moderator
For instance...on some boards with 2 x m.2 slots.
1 slot, m.2_1, will take either SATA or PCIe based drives.
The other slot, m.2_2, will take only one type.


example, picked at random:

Z370 AORUS ULTRA GAMING 2.0
https://www.gigabyte.com/Motherboard/Z370-AORUS-ULTRA-GAMING-20-rev-10#sp

1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 PCIe x4/x2 SSD support) (M2Q_32G)
1 x M.2 connector (Socket 3, M key, type 2242/2260/2280 SATA and PCIe x4/x2 SSD support) (M2A_32G)
 

USAFRet

Titan
Moderator


The only benefit a SATA m.2 drive gives you is fewer cables.
Same price and performance as a 2.5" drive, just in a different package.
 
Feb 16, 2018
6
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Changed!

 

Rogue Leader

It's a trap!
Moderator


The 860 EVO is the replacement for the 850 EVO. The 8xx drives are SATA interface, hence they also have an 860 evo M.2 SATA

The 960 EVO is the replacement for the 950 PRO, which is now both the 960 EVO and 960 PRO. 9xx drives are PCIe Interface.