Low Speed - Corsair Force GT 120GB

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gearbrain

gearbrain

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May 2, 2011
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As thread title suggests. Have it connected to an asus 787-k board running an i5-4670k.

These results are after having uninstalled any potential bottlenecks like AV software.

It's connected through the board's 6GB/s controller.. not sure what the issue is. It has 62GB used. Does performance scale to capacity? Maybe needs a secure erase or would having TRIM enabled mean I don't need to?

Thanks.

IUCmBpb.png
 
Solution
gearbrain
Okay so I found the solution for anyone who may be watching this thread with a similar problem.

In my case the problem was TrueCrypt. Apparently the Sandforce controllers use data compression to achieve the speeds they do, and using software based full disk encryption, the hardware compression of data is impossible. From what I gather other SSD's should be fine as TrueCrypt does it's encryption in ram and doesn't have much I/O penalty, especially with an AES accelerating CPU like the i5-4670k but this is a big no-no on Sandforce because of the compression.

Thanks for your help anyway guys. I think I'll be looking for a hardware-encrypting drive soon like a Samsung or Intel drive.
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Dereck47

Dereck47

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Jan 20, 2011
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Your motherboard has 6 SATA 3 (6Gb/s) ports. Connect your SSD to the 1st SATA port (SATA6G_1) if it is not there already and then retest with ATTO. See page 1-17 of your motherboard manual for the location of the port.

If it is already on SATA6G_1 then try another port and retest. Also double-check that the SATA port is in AHCI mode.
 
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gearbrain

gearbrain

Distinguished
May 2, 2011
49
0
18,540
Okay so I found the solution for anyone who may be watching this thread with a similar problem.

In my case the problem was TrueCrypt. Apparently the Sandforce controllers use data compression to achieve the speeds they do, and using software based full disk encryption, the hardware compression of data is impossible. From what I gather other SSD's should be fine as TrueCrypt does it's encryption in ram and doesn't have much I/O penalty, especially with an AES accelerating CPU like the i5-4670k but this is a big no-no on Sandforce because of the compression.

Thanks for your help anyway guys. I think I'll be looking for a hardware-encrypting drive soon like a Samsung or Intel drive.
 
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