Help getting the best of my SSD

[nikolarun]

Hi All,
I am having some trouble getting the best of my Intel SSD 510 120GB Drive.

Here is my config :

i7-860 @ stock
Asus P7P55D-E Pro
16GB (4x4GB) DDR3
1x Intel 510 120gb
1x Seagete 500GB
Win7 Ultimate

Running the latest Intel RST in ACHI and latest Marvell Drivers ( From Station-Drivers.com ).
I originally had the SSD on the Marvell 6Gb controller.
On the Marvell Seq Read 328Mb / Write 166Mb ( tried a couple of drivers same result )
On the Intel I am getting Seq Read 256MB / Write 210Mb ( so write speed is spot on , but read is way off ).
I've read most of the reviews of the 120gb drive and people are getting in the 400s MB seq Read on Sandy Bridge.
The 512k random results for Read are about 50MB/s faster on the Marvell ( 276MB/s ) and 30MB/s slower.
The 4k random are pretty similar with the Marvell reading a bit faster and writing a bit slower.

Is the 256mb/s read on the Intel controller a limitation of the P55 platform ? Or can I do better?
I prefer the Intel controller as TRIM seems to work on it, whereas it is a bit debatable if it works on the Marvell.

Regards
Nick

 

[nikolarun]

Just to add.
The temp files + pagefile are on my 500GB drive, Firefox cache is on a 4GB Ram drive.
The SSD is my OS drive and it is around 80% full.
All tests were done with Crystal Mark 3.0.1 64bit