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Intel 510s 250gb RAID 0 - Very low performance

idata
Esteemed Contributor III

Hello, 1st post here. I just bought a couple of these drives and picked them over Vertex 3 due to reliability. However I'm running a RAID 0 and getting rather low performance in every benchmark I've tested:

Crystalmark for example:

Seq read: 545, write: 453

512k read: 322, write: 416

4k read: 15, write: 30

4kQD32 read: 159, write: 100

Get very similar results in AS SSD

System:

This is a brand new M18x Laptop

i7 2920xm

8 GB Ram 1866

Windows 7 64

I did a fresh install, disabled the defrag and indexing

My stripe is 465GB and the Raid is configured with 128KB Blocks.

I did install the Intel Rapid Storage Driver

Any ideas?

Thank you.

28 REPLIES 28

idata
Esteemed Contributor III

Sorry I speak no English.

Search "LPM" in Google in your language. Maybe this is your problem.

Alternatively, http://www.derbench.de/index.php/hardwaretipps/1-haenger-mit-ssd-durch-ausschalten-von-intel-lpm-lin... here is a German site. In the bottom of this page contains information from Intel in the English language.

My advice: Do not use the automatic reg files!

If you're technically savvy, then the three Reg-values change manually! The values can always be put back again.

Please give a feedback in this forum!

PS: Secure your system before!

Changes in the registry at your own risk.

Here's a http://www.hardwareluxx.de/community/f227/haenger-mit-ssd-durch-ausschalten-von-intel-lpm-link-power... thread on this subject in German.

(http://translate.google.de/translate?js=n&prev=_t&hl=de&ie=UTF-8&layout=2&eotf=1&sl=de&tl=en&u=http:... same link with Google Translate in english)My post you'll find there on page 8 (RickiBerlin)

idata
Esteemed Contributor III

Thank you ricky but I don't think this is an LPM issue, I don't have any blue screens, lock ups, my issue seems to be around the SATA/Driver detecting my second drive as a SATA 3 (6gb/s) drive.

idata
Esteemed Contributor III

This has nothing to do with BSOD and lock ups.

Also, I had no problems.However, the brakes "LPM" 4K performance. And this is a small extent even under "SATA II".

An attempt is worth it in every case.

Switch to SSD Port tentatively "LPM" offThen measure the speed.For me, "LPM" disabled.

idata
Esteemed Contributor III

Ok fair enough, do the instructions in that link you posted apply to the Intel 510?