Intel 520 not getting advertised speeds.

[idata]

I'm not getting the advertised speeds of max sequential read up to 550 MB/s and max sequential write up to 500 MB/s. I'm only getting 487.93 MB/s read and 171.75 MB/s write. I'm using it in an Acer Aspire 5750-6414 notebook.

[idata]

Well i have a problem also, and i cant for the life of me figure out where i went wrong.

HW: 240GB 520 series, Gigabyte Z68AP-D3, i7 2700K, Bios updated to latest version and Extreme HDD set to Raid (ACHI), ssd connected to Sata 3 (6G/s) SATA port 0

No other disks in system but a DVD on Sata 2 (3G/s) SATA port 5

Win7 Ultimate UK 64 bit, and toolbox run and all done, but why am i getting so poor write performance ?

Using ATTO v2.46 btw.

----------

UPDATE:

Fixed my problem - mainboard controller was failing - bought another mainboard (Asus P8Z68-V PRO/GEN3) and results are perfect !

[idata]

To jytte

Hi i dont think your mother board was your problem you have a k series cpu but at standard clock speeds yes ??

You just need to turn of cpu voltage saver on asus boards un sure what its called but im m\pretty sure that would have fixed it

because i had same problem on z68x gigabyte board .