Toshiba SSD R/W speed problem

[Jakelq]

I recently bought a Toshiba Q series 128gb SSD, and used it as my primary drive.
When I check the R/W speed of my SSD using crystaldiskmark, it only shows about 370mb/s read and 340mb/s write, on the box, it shows that 552/501 for R/W, i've tried plugging the sata cable to all ports but still the same, can someone help me how to get the speed same with speed shown on the box.

My board is ASUS M5A99FX Pro Rev 2.0, the space used after insallation is only 45Gb.

Thank you,

 

[Dereck47]

CrystalDiskMark uses highly incompressible data to test Read/Write speeds. Highly incompressible data is the hardest type of data for any SSD to Read/Write.

Advertised speeds for your SSD are with ATTO. http://www.toshiba.eu/hard-drives/solid-state/solid-state-drive-q-series/hdts212ezsta/

ATTO uses highly compressible data to test Read/Write speeds. Highly compressible data is the easiest type of data for any SSD to Read/Write.

 

[rehed21]

AHCI enabled?

 

[Jakelq]

CrystalDiskMark uses highly incompressible data to test Read/Write speeds. Highly incompressible data is the hardest type of data for any SSD to Read/Write.

Advertised speeds for your SSD are with ATTO. http://www.toshiba.eu/hard-drives/solid-state/solid-state-drive-q-series/hdts212ezsta/

ATTO uses highly compressible data to test Read/Write speeds. Highly compressible data is the easiest type of data for any SSD to Read/Write.

But I've also searched that there is a test using CDM and it shows 538/496 , R/W.

 

[Jakelq]

AHCI enabled?

Yup.

 

[Jakelq]

on this link shows the CDM R/W almost nearing the advertised speed, i dont know why I only got 370/340 R/W.

 

[Dereck47]

Even though all of your ports are SATA 3 (6Gb/s), connect your SSD to port SATA6G_1, and update your chipset drivers to the latest version, and see if that improves your scores. http://support.amd.com/en-us/download/chipset?os=Windows+8+-+32

You could also try updating your motherboard's BIOS to version 2201 and see if that helps.

 

[Jakelq]

Even though all of your ports are SATA 3 (6Gb/s), connect your SSD to port SATA6G_1, and update your chipset drivers to the latest version, and see if that improves your scores. http://support.amd.com/en-us/download/chipset?os=Windows+8+-+32

You could also try updating your motherboard's BIOS to version 2201 and see if that helps.

Hmmm, I've updated all my drivers thru asus web, but I think I missed something, the chipset driver from asus is outdated,.

Ok, I'll try to updated the driver, and lets see,.

Thank you very much.