Z400 + SSD + AHCI

I have a workstation Z400 (CPU L5639 w/8 GB RAM) with a clean installation of Windows 7 x 64 on a brand new Samsung 840 Pro SSD. While the BIOS shows that RAID + AHCI is enabled and I have even installed the latest Intel driver for the controller, the Samsung reference utility displays the performance to about half of what it must be based on what I've seen of others using this player. It seems to be running in IDE mode for me.

I saw a thread relevant here of someone who works with even a Z420 car and they have solved using the Intel driver rather than the default which installs in W7, but that made no difference in my case.

If anyone has any suggestions I would be very happy. I've attached screenshots relevent.

Thanks in advance.

Glenn

Integrated SATA port? It is 3G. 270 MB/s is great for the 3G, you get not much higher - and 99.999% of the time that you won't - it is low latency that count, not gross transfer rates.

Tags: HP Desktops

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