M.2 Sata not working

Mar 24, 2018
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I was building my first PC and the bios is not recognizing my m.2 sata ssd.
I have an ASRock Fatal1ty AB350 Gaming-ITX/ac AM4 mITX AMD Motherboard and a Silicon Power M55 M.2 2280 240GB SATA?
There is a red and a blue light on the ssd.
 
The board has two M.2 slots (1 x Ultra M.2 & 1 x regular M.2).

The Ultra M.2 slot supports only M.2 PCIe (NVMe) SSDs.

The regular M.2 slot supports only M.2 SATA SSDs.

The SSD you have bought is SATA type, so will only work in the regular M.2 slot.

So please check which M.2 slot you have used.