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Not getting maximum performance from my ssd

post #1 of 14
Thread Starter 
ive had my ocz vertex 3 for a little while now and just decided to test it to see how fast it would read/write. it reads at 378 mb/s and writes around 250 mb/s. its commercialed to do around 500 mb/s. I have it set to AHCI mode on my motherboard and i don't really know much about them to troubleshoot it. anyone have any ideas what might be going on?
    
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post #2 of 14
On an X58 board it could be the controller, the Sata6 ports aren't very good. You may even get better results using the Intel Sata3 ports (lower sequential read/write but higher random/small random performance).

Also try an SSD benchmark, AS SSD Benchmark is a good one and there's a thread on here for it to compare results.
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post #3 of 14
Thread Starter 
thats the bench marking tool i used. so you're suggesting i move to sata 3 ports to get more performance?
    
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post #4 of 14
Do not use AS SSD bench for a Sandforce SSD. Use ATTO. One bench uses compressed data while the other is uncompressed and ATTO is the one you should use for your drive.

Also, that sata 3 controller on your board is a Marvell port. They do not support trim first of all and they do not allow you to reach normal sata 3 bandwidth, my friend even got stuttering on his marvell sata 3 controller. .

I would just use the sata 2 ports...better overall.
post #5 of 14
Thread Starter 
i just reformatted and set my ssd back in AHCI and my read/ writes are around 260mb/s
    
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post #6 of 14
Quote:
Originally Posted by Benjammin;15577513 
i just reformatted and set my ssd back in AHCI and my read/ writes are around 260mb/s

That's about right.
post #7 of 14
Thread Starter 
not for an ocz vertex 3. they read/write around 500mb/s
    
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post #8 of 14
Quote:
Originally Posted by Benjammin;15577862 
not for an ocz vertex 3. they read/write around 500mb/s

Marvell sucks. And your SSD is probably pretty full. There isn't much more we can tell you. Don't expect speeds like that unless the SSD is completely empty and running on a native SATA III controller.
Edited by thisischuck01 - 11/4/11 at 10:47pm
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post #9 of 14
Quote:
Originally Posted by Benjammin;15577862 
not for an ocz vertex 3. they read/write around 500mb/s

Did you not put it on the Intel sata 2 ports?

On the intel sata 2 ports you get 260-270 read and on intel sata 3ports you would get ~500+

On the marvel sata 3 ports you get normally under 400.
post #10 of 14
Thread Starter 
do i have an intel sata port?


EDIT:I just plugged it into the marvell controller and got speeds around 360mb/s
would still like to see around 450 though
Edited by Benjammin - 11/5/11 at 6:36am
    
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