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noob at m.2

tech_geek100

13 months ago

ok so, I have 4 sata ports on my mobo, and 1 is occupied and I want to add an m.2. in compatibility notes it says that an m.2 takes up a sata port, so does that technically mean that I have 3 sata ports. and is it ok to use.

Comments

  • 13 months ago
  • 2 points

yes, that is what it means. it is shared with one of the SATA ports so if you use the m.2 slot you will essentially have 3 sata ports available (two since you are already using one). It is fine to use as long as you have enough connections for your devices.

also know that m.2 is a form factor and can usually support SATA or NVMe drives so be aware of what type of M.2 ssd you are buying.

[comment deleted]
  • 13 months ago
  • 1 point

The m.2 will share bandwidth with a SATA port, meaning that one of the 4 will hace 0 bandwidth

  • 13 months ago
  • 1 point

Check your motherboard's manual. It will list which M.2 slots disable which Sata ports.

  • 13 months ago
  • 1 point

thk

  • 13 months ago
  • 1 point

Just to share a funny story dealing with M.2 taking the bandwidth of a sata port I added a super cheap mx300 275gb m.2 that I won at an auction to my Black Ice HTPC. (I didnt update the build with that info though. After I booted it for the first time I did load directly to the bios because I wanted to see right away that it was seen and it was. Though oddly I didn't see my boot drive. I had my boot SSD plugged into SATA 0 and in the paper manual I got in the box (I tend to keep those) it stated the m.2 shares bandwidth with sata 3. I moved my sata cable to sata 1 instead of 0 and it was able to see both drives again. It seems the manual lied and the M.2 takes Sata 0 instead of Sata 3.

Luckily that didn't take too long to figure out.

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