Quick Question about M.2 SSD's and SATA EXPRESS Ports

KRoman

Commendable
Sep 20, 2016
20
0
1,510
In pcpartpicker it shows this note: The motherboard M.2 slot #0 shares bandwidth with a SATA Express port. When the M.2 slot is populated, one SATA Express port is disabled.

The motherboard is the asus z170 sabertooth s and the ssd is the 950 pro m.2 ssd from samsung.

Will the m.2 ssd still reach its 2500 MBps read and 1500 MBps write speeds? I just wanna be sure. Thanks in advance.
 
Solution
It should be using the full potential of the port unless you also use the SATA Express. It's just a warning that your chipset doesn't have enough lanes to run them all independently, so if you use both they'll be sharing bandwidth.

Does that mean you'll get max potential speed, not necessarily. Those listed speeds are the maximum throughput of the port, not the actual speed of the SSD.

JaredDM

Honorable
It should be using the full potential of the port unless you also use the SATA Express. It's just a warning that your chipset doesn't have enough lanes to run them all independently, so if you use both they'll be sharing bandwidth.

Does that mean you'll get max potential speed, not necessarily. Those listed speeds are the maximum throughput of the port, not the actual speed of the SSD.
 
Solution