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Reads consistently lower than writes? OCZ Vertex

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#1
I don't understand why I am getting consistently lower reads than I am writes with my OCZ Vertex 2 90GB SSD, benching with ATTO, screenshot below, anyone any ideas? SATA botrtleneck or something else?

I have TRIM enabled, superfetch and indexing turned off, also ran the SSD Tweaker, oh and is now running in ACHI mode in the BIOS.

 

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#2
OCZ Vertex 2 60 GB

TRIM enabled, superfetch and indexing turned off, ACHI mode........
 

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erocker

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#3
Chipset limitations, system configurations, overall use all contribute to these things. Your SSD looks normal and Read bandwith is barely off of write. Nothing to be concerned about. My SSD is very close to yours.