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SSD 520 120GB small speed on SATA2

Esteemed Contributor III


I have just bought new ssd 520 SSDSC2CW120A3 drive to my Samsung R580 laptop. Intel rapid technology software shows that my controller is: Intel(R) 5 Series 4 Port SATA AHCI Controller and that drive works in mode 3Gb/s. Strange thing is that HD tune benchmark shows average read speed of 170 MB/s. I believe that on SATA 2 this should be around 270 MB/s. I am right?

I tried to update bios, drivers and etc. but with no luck. Any help or suggestion would be very appreciated.

Below system info:

System Report

System Information

OS name: Microsoft Windows 7 Professional OS version: 6.1.7601 Service Pack 1 7601System name: SPOCK-PCSystem manufacturer: SAMSUNG ELECTRONICS CO., LTD.System model: R580/R590 Processor: GenuineIntel x64 Family 6 Model 37 Stepping 2 2.267 GHzBIOS: Phoenix SecureCore(tm) NB Version 11JB.M044.20100622.hkk, SECCSD - 6040000

Intel® Rapid Storage Technology

Kit installed: interface version: English (United States)Intel AHCI controller: Intel(R) 5 Series 4 Port SATA AHCI ControllerNumber of SATA ports: 3Driver version: version:

Device Information

Disk on port 0Port location: InternalStatus: NormalSize: 112 GBSerial number: CVCV2025084S120BGNModel: INTEL SSDSC2CW120A3Firmware: 400iSystem disk: Yes Password protected: NoDisk data cache: EnabledNative command queuing: Yes SATA transfer rate: 3 Gb/sPhysical sector size: 512 BytesLogical sector size: 512 Bytes

Disk on port 1

Port location: InternalStatus: NormalSize: 0 GBSerial number: i1J3456789KLMNOPModel: TSSTcorp CDDVDW TS-L633CFirmware: SC00System disk: NoPassword protected: NoDisk data cache: DisabledNative command queuing: NoSATA transfer rate: 1.5 Gb/sPhysical sector size: 0 BytesLogical sector size: 0 Bytes

Empty port

Port: 4Port location: External

Kind Regards


Esteemed Contributor III

Ok, i did run ATO benchmark and results look good. I suspect that HD Tune uses unfortunate buffer size.