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Slow speeds for my new ssd?

post #1 of 11
Thread Starter 
I just installed HD Tune and i test my ssd and it only got a maximum transfer rate of 184mb/s. It is rated at 250mb/s so what could be causing it to be so much slower? My Raided 1tb drives are getting 154mb/s and my 5400rpm 2tb dive is apparently getting 136mb/s.

These results dont seem right to me.
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post #2 of 11
what SSD do you have? and is it running in AHCI?
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post #3 of 11
Thread Starter 
I have the Corsair 120gb Force series SSD. I dunno, in my bios i set my hard drives to RAID because of the drives that i have in raid 0.
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post #4 of 11
Here is where he was talking about:
1. Hit the Winkey + ‘R’ to get you to the ‘Run’ menu.

2. Type ‘Regedit’.

3. Select the file path:

“HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Se rvices\\msahci”

4. Right Click and modify Start from 3 to 0 and Restart.

And here is a guide I used to setup my SSD's:http://thessdreview.com/ssd-guides/o...ation-guide-2/
post #5 of 11
the hd tune benchmark is not the benchmark that ssd manufactures use for advertised speeds.
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post #6 of 11
Quote:
Originally Posted by AMOCO View Post
Here is where he was talking about:
1. Hit the Winkey + ‘R’ to get you to the ‘Run’ menu.

2. Type ‘Regedit’.

3. Select the file path:

“HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Se rvices\\msahci”

4. Right Click and modify Start from 3 to 0 and Restart.

And here is a guide I used to setup my SSD's:http://thessdreview.com/ssd-guides/o...ation-guide-2/
He has some different drives in raid... he can't do that.

Edit: And there is no reason to switch out of RAID mode anyways. RAID mode gives the exact same performance as AHCI, but it enables RAID configs.
Edited by NewAtOCing - 6/1/11 at 6:45am
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post #7 of 11
Thread Starter 
Quote:
Originally Posted by NewAtOCing View Post
He has some different drives in raid... he can't do that.
Yeh i cant run in AHCI mode. Is that why im not getting optimal performance with my ssd?
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post #8 of 11
Quote:
Originally Posted by Mentoss View Post
I just installed HD Tune and i test my ssd and it only got a maximum transfer rate of 184mb/s. It is rated at 250mb/s so what could be causing it to be so much slower? My Raided 1tb drives are getting 154mb/s and my 5400rpm 2tb dive is apparently getting 136mb/s.

These results dont seem right to me.
1) Use 32 queue depth and large blocks (512KB+) when benchmarking.
2) The rating is up to so that rating might be for the 240GB version.
3) Sequential performance is the least important benchmark. Random performance is MUCH more important.




Quote:
Originally Posted by NewAtOCing View Post
He has some different drives in raid... he can't do that.
RAID drivers are a superset of AHCI.

Quote:
Originally Posted by Mentoss View Post
Yeh i cant run in AHCI mode. Is that why im not getting optimal performance with my ssd?
RAID mode already includes AHCI.
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post #9 of 11
Yeah Duckie, that's what I was trying to say.

Anyways, did you align your drive before you installed the OS?

This benchy shows your reading are a bit low.
Edited by NewAtOCing - 6/1/11 at 6:54am
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post #10 of 11
Thread Starter 
Quote:
Originally Posted by NewAtOCing View Post
Yeah Duckie, that's what I was trying to say.

Anyways, did you align your drive before you installed the OS?

This benchy shows your reading are a bit low.
I dont think so, i dont know what aligning the drive means lol. I got HD Tune pro and im running the same test and now i am getting around the same performance as the reviewer. Although i cant test the write speed. It gives me an error every time and says writing is diabled :s
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