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I recently upgraded to a Kingston Hyper-X 120GB SSD, when I run Crystaldiskmark my scores look really slow, my MB (gigabyte 775) does not have an option for ACHI in the BIOS,

I'm wondering if that's an issue. The scores were:

Seq read -233 write-176.8
512K-224 write-175.8
4K-25 write-80
4K-23 write-102

This drive is rated for over 500, Any help or input would be greatly appreciated..

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It would help a lot to know what motherboard you have and which port the SSD is connected to. –  David Schwartz Dec 17 '12 at 16:53
    
As @DavidSchwartz pointed out, the SATA port type is crucial here and some Gigabyte Socket 775 motherboards only have SATA II (3Gb/s) which is rated for theoretical maximum of 300MB/s. For that SSD to reach it's peak advertised performance a SATA III port is required. –  mprill Dec 17 '12 at 16:58
    
those values look ok for SATA2 –  magicandre1981 Dec 17 '12 at 19:10
    
Yup, just looked it up, this is a SATA2 board, thanks.... –  Tom Dec 17 '12 at 22:46
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