Slow speed of SSD

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manosba

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Mar 31, 2014
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4,510
Hello to everyone. I ve read all the forum tags about the solutions of the low speeds of ssds and i couldnt fix my problem. I bought a Corsair Force LS SSD 120g (up to 550read/up to 520write). My motherboard is Asus P6T SE. I installed windows on SSD and then changed the ACHI from windows and after from the BIOS following the instructions of the forum. My SSD's speed dublicated put still i think is low. Here are the results.

iaStor OK
1024K OK

read write
seq 257 185
4k 24 50
4k-64 152 143
acc t 0.13 0.066

( i canot upload the photo.??)
I have partition on ssd is that a problem? Is my motherboard's fault. I think ports are SATA1 not SATA 3 as the SSD. Is something to do or the speeds are ok?

 
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zhihao50

zhihao50

Distinguished
Sep 23, 2011
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Seems like you got SATA (3gb/s) speed which is a max of 300mb/s unless you can get SATA 3 it don't go any faster due to hardware limitation

Edit: Looked up your motherboard yes it only got SATA 3 Gb/s(SATA2) ports and you need SATA 6Gb/s(SATA 3) to get the full speed.
 
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Dereck47

Dereck47

Splendid
Jan 20, 2011
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Advertised speeds for the Corsair Force LS are with ATTO.

ATTO uses highly compressible data to test Read/Write speeds. Highly compressible data is the easiest type of data for any SSD to Read/Write.
AS-SSD uses highly incompressible data to test Read/Write speeds. Highly incompressible data is the hardest type of data for any SSD to Read/Write.

Benchmark with ATTO and your results should improve, but like zhihao50 stated, your results will be less than 300MB/s.
 
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