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Motherboard can't find M.2 SSD.

Hello guys! 

I'm currently helping a friend of mine building his first PC, and everything as been smooth sailing until we were about to install windows on that new bad boy, but the SSD isn't being detected by either the windows media installation tool or the bios itself. I've tried reseating the M.2 in case it wasn't properly seated, didn't help. Also read online that you could try to change the SATA Config from AHCI to IDE, but in the bios option I can only choose between ACHI or Raid.

I'm a bit out of ideas as to why it won't detect it.

Ryzen 7 5700x

Asus TUF A520 Plus Wifi

Samsung 980 NVMe 1TB

Everything is brand new aswell.

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In the BIos, is CSM on or off?

Desktop - Amd 5900x / GIgaByte x570s Aorus Master / Asus TUF 3080TI OC / 32GB Corsair Dominator Platinum / 2TB  WD SN850x  / Samsung 49" G9 Neo 

Plex NAS - Synology 1821+ / 32GB Kingston DDR4 ECC / 8 x 16TB Seagate IronWolf Pro / 2 x 400GB Synology NVME drives (cache)

ESXi Host - i7-12700 / Asus Prime B660M-A / 64GB DDR4 / 2 x 1TB Samsung 970 EVO Plus NVME

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Samsung 980 is a nvme M.2 drive it doesn't use SATA.

Leave the SATA settings on AHCI.

 

The M.2 connector is connected directly to the cpu, and supports pci-e, 4 lanes, so the SSD should work.

Look in device manager in Windows to see if it shows up.

 

Also make sure you are actually installing it properly, insert it in the m.2 connector at an angle, at around 30-45 degree, then gently press down on the other end of the ssd until the edge sits on the standoff and screw it to the standoff.

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Have you tried annother slot on the MB if there is one?

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