but as I said it's running on 5 gbs and not 10! look at the screen shot I added
why is that? and how to change it?
I see what you are saying. I was in the process of typing a reply when you both had the above exchange. I was going to ask what else you had installed.
The m.2 is PCIe 3.0 x4 capable. I seem to recall the Z97 chipset only being able to support x2 and does not offer full NVMe support
(could be mistaken) but this would explain why you are only seeing x2 or half the bandwidth. I haven't studied the architecture enough to know if the second GPU which does effectively reduce the graphics slots performance to 8x from 16, whether or not it has an effect on the storage interface as well since this could consume PCIe lanes, thus cutting available bandwidth in half. I don't use NVMe disks currently, and have not followed the implementation too closely.
I do believe however that the write speed limitation of 900mb is tied to the m.2 and not the controller. polypenko, where did you read this?