I am using the Asus z170-a motherboard, i5 6600k cpu, and a single 8GB stick of ram.
My samsung 950 pro ssd is running slow. I am only getting ~560 MB/s read and ~95 MB/s write. I used the samsung magician software to test speeds. I think that the m.2 is using SATA instead of PCI-E for some reason witch would explain the ~550 MB/s read speeds, but wouldn't I still be getting ~550 MB/s write speeds too? I installed the NVMe driver and my bios is up to date. Could it be the motherboard that is causing a problem? Faulty drive? I have also reinstalled windows and followed the correct procedure for installing windows on an m.2 drive.
M.2 storage (EX. Samsung M.2 950 Pro) to install OS like Win 7, 8.1 or 10)
For Windows 8.1, 10 only:
a. BIOS->Boot->CSM (Compatibility Support Module)->Disable
b. BIOS->Boot->Secure Boot->OS Type->Other OS
c. BIOS->Boot->Secure Boot->Key Management->Clear Secure Key
d. F10 (save and exit)
e. Install OS only with bootable UEFI media.
f. Re-enter BIOS after first restart during the OS installation, it will be shown within the BIOS
g. BIOS->Boot->Secure Boot->OS Type->Windows UEFI mode
h. BIOS->Boot->Secure Boot->Key Management->Install Default Secure Boot Keys
i. F10 (save and exit)
j. It should resume the installation, if not, completely power down the system and turn it back on after 10 seconds.
k. Note: do not connect any external devices to the computer during the installation and best if only the M.2 SSD is installed on the system.
l. Install Samsung NVMe drivers for performance