SSD not showing rated speeds

i have a OCZ Vector VTR1-25SAT3-128G and its not working at quite the right speed. defiantly the write speed is slow
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227915

Max Sequential Read
Up to 550 MBps
Max Sequential Write
Up to 400 MBps
4KB Random Read
Up to 90,000 IOPS
4KB Random Write
Up to 95,000 IOPS

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I moved your post to a new thread since that is someone else's.

Run ATTO and see if that matches. ATTO is what is generally used to come up with those values.

Make sure AHCI is enabled in the bios (if not - http://forums.guru3d.com/showthread.php?t=313676) and you are running on the Intel SATA ports (see your manual).

Speeds are frequently given per SSD family, not for individual sizes; if you look at the 128GB SSDs and their Sequential Write stats you'll find that some give accurate numbers, others are 'family' numbers. For recent 128's, 180 - 320MB/s max, if the stats are much higher, say 400 - 550MB/s, then those stats will be from the largest 'family' member, not the 128GB.

Also, you might want to use the trial version of Hard Disk Sentinel to check that TRIM really is enabled and active. http://www.hdsentinel.com/faq.php#trim, lack of active TRIM will lead to a noticeable slowdown of SSD writes and it'll get worse over time.

True, but he isn't close because he is not using the same application OCZ uses to get their values in the first place.

The specs he listed are for the 128GB drive he has anyway.
http://ocz.com/consumer/vector-7mm-sata-3-ssd/specifications

ok heres with ATTO. the read speeds seem great. right around 550 MB/Sec as advertised. but the write is defiantly low. right around 200 instead of the 400 advertised

Is it full?

Also...

satrow said:

Also, you might want to use the trial version of Hard Disk Sentinel to check that TRIM really is enabled and active. http://www.hdsentinel.com/faq.php#trim, lack of active TRIM will lead to a noticeable slowdown of SSD writes and it'll get worse over time.

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