SSD Read/Write Speeds - Slow

fRostiE

fRostiE

fRostiE

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Hi,

I have a Corsair Force 3 120gb SSD, but when i benchmarked my machine using a piece of software someone at work pointed me to, i noticed my SSD is not performing too well:

SSD.png


the speeds of the hard drive are quoted as 550 MB/s sequential read & 510 MB/s sequential write...

My motherboard is a GigaByte Z68XP-UD3 and I've checked the port is correct (SATA 3 - Intel port - rather than the alternative onboard Marvell SATA Controller - which i've heard is slightly slower)

I converted windows to run on AHCI MODE as advised by a few websites, changed in the registry and enabled within the BIOS...

Another guy at work with exactly the same hard drive is achieving much closer to the quoted read/write speeds.

Can anything think of anything i can check, change, update or run to speed this puppy up?

Thanks,



[Edit] Just noticed this should be in the 'Storage Drives' bit... could a kind mod please move me over - thanks! [/Edit]
 
Last edited:
Seems fine to me,it does state UPTO those figures so could be anywhere below but looks right to me,and Intel ports are the best

Yh try atto and running to many benchmarks can degrade an ssd so be carefull
 
The manufacturer quoted speeds are for compressed data, you'd need to run Atto benchmark to get near those figures.

Post a screenshot of your results like this.

atto.jpg
 
VaderDSL said:
Yeah switch to AHCI in the BIOS, be warned though you will see an error when you next boot.
Click to expand...

Thanks

I've already edited 'HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci' to value: 0 and enabled the AHCI feature in the bios

i didnt get any warning message or driver installation pop-ups though, so i do wonder if its actually made the switch :confused:
 
follow this guide or click this reg file,reboot set to ahci in bios and boot up without re installing,and benchmarking ssd's is very stressfull so try to do it as less as possible

1.Exit all Windows-based programs.
2.Click Start, type regedit in the Start Search box, and then press ENTER.
3.If you receive the User Account Control dialog box, click Continue.
4.Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMsahci

5.In the right pane, right-click Start in the Name column, and then click Modify.
6.In the Value data box, type 0, and then click OK.
7.On the File menu, click Exit to close Registry Editor.

After this you’ll have to restart your computer, go to BIOS and enable AHCI. When you log in to Windows again, you’ll notice the installation of drivers for AHCI. Another restart will be required to finish the driver installation.

or click this reg file to save having to do the above,this way means no blue screens or win7 re install works fine done it many many times

reg file http://cdn.ithinkdiff.com/wp-content/uploads/2009/05/ahci.reg

EDIT ive seen youve done it allready,if ahci wasnt enabled it simply wouldnt boot up in ahci mode it would blue screen,btw how full is the drive?
 
VaderDSL said:
Run the benchmark again and it should change the pciide to ahci something or other if it has switched :)
Click to expand...

Hey,

I'd changed the registry and bios settings a few days before running the benchmark above... so those results are supposedly already running AHCI!
 
liamcrane said:
How are you getting such high write speeds? Mine are quite low on my M4 all be it i know i am running on Sata II



Uploaded with ImageShack.us
Click to expand...

Cos mine's an Agility 3 ;)

Crucial RealSSD M4 64GB
Sequential Read (up to): 550MB/sec (SATA 6Gb/s)
Sequential Write (up to): 110MB/sec (SATA 6Gb/s)

OCZ Agility 3 60GB
Maximum Read: 525MB/sec
Maximum Write: 475MB/sec


Don't worry about it in real word performance terms the M4 is slightly faster than the Agility 3.

But being on Sata 2 will hold you back quite a lot :(
 
look at the 4k read/write figures,this is where it matters most in general ssd usage,the m4 is higher than the agility
 
Davefran said:
Cos mine's an Agility 3 ;)

Crucial RealSSD M4 64GB
Sequential Read (up to): 550MB/sec (SATA 6Gb/s)
Sequential Write (up to): 110MB/sec (SATA 6Gb/s)

OCZ Agility 3 60GB
Maximum Read: 525MB/sec
Maximum Write: 475MB/sec


Don't worry about it in real word performance terms the M4 is slightly faster than the Agility 3.

But being on Sata 2 will hold you back quite a lot :(
Click to expand...

Thanks a lot for that matey! I didnt realize that the M4 had such slower write speeds compared to the Agility! Im glad mine looks like its running right then on sata II. I know iam losing half the performance of the read speeds being on sata II but would be interetsed to know just how much quicker it actually feels having a read speed of 250mb like mine compared to a 550mbps 6gb port

Thanks again
 
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