M.2 PCIe SSD - Will it disable SATA Slot(s)?

Jan 2, 2019
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Hi guys, thanks for helping.

I own a Gigabyte GA-H170-Gaming 3 motherboard, where according to spec support the following storage options:

I. 2 x M.2 Socket 3 connectors (Socket 3, M key, type 2242/2260/2280 SATA & PCIe x4/x2/x1 SSD support)
II. 2 x SATA Express connectors
III. 6 x SATA 6Gb/s connectors

My question is:

Given all 6 SATA slots are currently connected to HDD/SSD, will there be a problem if an addition of two M.2 Socket with PCIe SSDs being added to the empty slots? Willing to sacrifice GPU PCIe lane from x16 to x8 in order to achieve 6 SATA HDD/SSD + 2 PCIe M.2 SSD, but not sure if it is technically feasible.

I know using a M.2 SATA SSD would disable one or more SATA ports; but I heard mixed outcome when it comes to M.2 PCIe SSD (e.g. Samsung 970 PRO M.2 SSD 512GB 2280 MZ-V7P512BW PCIe 3.0 x4, NVMe)

Thanks very much for your time.
 
Solution
Manual P17 and P18 shows it may. Two modes AHCI and RAID.
Looks like M2A_32G M2 is separate if you plug in PCIE, it is fine. M2D_32G M2 is sharing pcie lanes with 6 sata ports. I suggest you just buy one big pcie ssd and plug into M2A_32G M2 slot.
Manual P17 and P18 shows it may. Two modes AHCI and RAID.
Looks like M2A_32G M2 is separate if you plug in PCIE, it is fine. M2D_32G M2 is sharing pcie lanes with 6 sata ports. I suggest you just buy one big pcie ssd and plug into M2A_32G M2 slot.
 
Solution
Jan 2, 2019
2
0
10


(Nice avatar btw)

I see. I notice the Page 17 and 18 table but have limited knowledge on the subject :p

Just trying to learn. You mean the PCIe SSD row in the M2A_32G AHCI table shows all check marks on all SATA columns, hence the additional PCIe plugged into M2A_32G should not disable any SATA ports. Correct?