M.2 slot problem (AB350 Gaming K4)

Drives connected to M.2 slot 1 disappear on both X370 Taichi and Fat Pro Gaming for no apparent reason (Intel M.2 1TB SSD 540s Series)......either a hardware fault with the board or bios issue??????????

Who Knows????

All I know is it's giving me the SHIIIIIITS!!!!!

Edited by lowdog - 23 Jun 2017 at 6:01pm

quesinckl wrote: The uefi could not detect the SSD installed in the first m.2 slot, but only in the second m.2 slot.  I am using Samsung 850 evo on Win10, remember BIOS 2.50 maybe.

You have the AB350 Gaming K4 board, and have a Samsung M.2 850 EVO, which is a SATA M.2 SSD.

Checking your board's specs, from the Storage section:

1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Ryzen Series CPU) or Gen3 x2 (16 Gb/s) (with A-Series APU)

1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s module

http://www.asrock.com/mb/AMD/Fatal1ty%20AB350%20Gaming%20K4/index.asp#Specification

The M2_1 slot only supports PCIe M.2 SSDs, it does not support SATA M.2 SSDs.

The M2_2 slot only supports SATA M.2 SSDs.

This explains why an M.2 SATA 850 EVO is only detected in the M2_2 slot.

Not all M.2 slots support both types of M.2 SSDs. Some boards have M.2 slots that support both types, but that is not true for every board. An M.2 slot that supports both PCIe and SATA M.2 SSDs must have the slot connected to both the PCIe lanes in the CPU or chipset, and the SATA resources in the chipset, and be able to detect the type of M.2 SSD being used. That adds to the complexity of the board, and its cost.

We really must be careful when checking the specs of a board, to be sure we understand its capabilities and limitations.

Can you boot using that Intel 540s Series M.2 2280 SATA3 on M.2 Ultra slot? Sorry for OOTing, my thread don't have any answer