my PC is new as of early 2015 and I just bought the new Kingston HyperX Predator 480GB PCIe Gen2 x4 M.2 SSD for it, but despite various tweak attempts Ive never seen it get much above ~700mb/s for both read and write, which is approximately half of the rated maximum read speed of 1400 and a fair bit off 1000 write speed.
AS SSD Benchmark screenshot - http://postimg.org/image/5baqwpfar/
MOTHERBOARD is Asus Z97-A (https://www.asus.com/au/Motherboards/Z97A/)
CPU - Intel i7-4790K (Devil's Canyon/Haswell)
RAM - 2x8gb Kingston DDR3 1600mhz
OS - Win7 Ultimate 64bit
HDD - The only other drive is a Western Digital hdd but even when I disconnect its SATA cable and reboot with only the SSD available the benchmark is still the same.
In the Z97-A manual it states "The PCIe x1_1/2 slots share bandwidth with M.2 Socket 3. The M.2 Socket 3 is disabled by default" (but im assuming i successfully enabled it in BIOS as i am able to use the drive, just at half speed)
In Storage the manual also says "The SATA Express port shares bandwidth with M.2 Socket", in regards to the "1 x M.2 Socket 3 with M key, type 2260/2280 storage devices support (PCIE mode only)".
But again even with the HDD unplugged (both power + sataexpress cables) the benchmark is the same.
Im really impressed with the new performance of this SSD, but would love to see it at full performance not half! But ive run out of things to try from all my googling so it seems there's only one place left - Toms!
AS SSD Benchmark screenshot - http://postimg.org/image/5baqwpfar/
MOTHERBOARD is Asus Z97-A (https://www.asus.com/au/Motherboards/Z97A/)
CPU - Intel i7-4790K (Devil's Canyon/Haswell)
RAM - 2x8gb Kingston DDR3 1600mhz
OS - Win7 Ultimate 64bit
HDD - The only other drive is a Western Digital hdd but even when I disconnect its SATA cable and reboot with only the SSD available the benchmark is still the same.
In the Z97-A manual it states "The PCIe x1_1/2 slots share bandwidth with M.2 Socket 3. The M.2 Socket 3 is disabled by default" (but im assuming i successfully enabled it in BIOS as i am able to use the drive, just at half speed)
In Storage the manual also says "The SATA Express port shares bandwidth with M.2 Socket", in regards to the "1 x M.2 Socket 3 with M key, type 2260/2280 storage devices support (PCIE mode only)".
But again even with the HDD unplugged (both power + sataexpress cables) the benchmark is the same.
Im really impressed with the new performance of this SSD, but would love to see it at full performance not half! But ive run out of things to try from all my googling so it seems there's only one place left - Toms!