Kingston HyperX SSD Poor Write speeds

[SRRAE]

I have recently purchased a Kingston HyperX 120Gb SSD.

I have done a fresh install of Windows 7 x64 and Ahci was enabled before installing.

According to AS-SSD Im getting read speeds of around 440mb/s (a little short than its advertised 540mb)
But im only getting write speeds of 130mb/s, this is only slightly faster than my Raptor which I tested at 129mb/s

I have disabled Indexing, disabled Write Cache, disabled defrag and installed the lasted drivers for my motherboard.
I changed the the drive to another SATA3 port and its no different. I changed it to the onboard Marvell SATA3 port and the read speed dropped to about 350mb/s and the write to about 120mb/s

Any ideas of what else can be causing the slow write speed or know what other applicaiton I can test it with?

Current Spec.
CPU intel 2500K
ASUS P8P67 LE Motherboard
Kingston HyperX SSD 120Gb
Raptor 450Gb HDD

Thanks

 

[kelthic]

Do you have the latest firmware for your ssd? you should check the kingston site to make sure. Some of the SSD's required firmware updates from the get-go to get close to their advertise speeds.

 

[smorizio]

have you check the firemare on the ssd and your mb is up to date?? looking at kingston web page the newest rev is 501.
http://www.kingston.com/us/support/technical/downloads?product=sh100s3&filename=SH100S3fw501

 

[Dereck47]

Advertised speeds for your drive are with ATTO benchmark software, not AS-SSD.

Here's the link to the spec sheet for your drive: http://www.kingston.com/datasheets/sh100s3_us.pdf

 

[SRRAE]

Hi Again,

I forgot to mention that I checked the firmware before I installed Windows.

But I think Dereck47. I think you have nailed the issue on the head. ATTO is reporting 520mb/s write and 555mb/s read.

 

[voodooking]

Thanks from here as well. I am getting rid of As ssd.

 

[aicom]

There's no reason to disable write caching. Write caching will improve your random write performance because they can be batched in RAM.

 

[SRRAE]

There's no reason to disable write caching. Write caching will improve your random write performance because they can be batched in RAM.

I read on several sites to disable it. I dont understand the logic but I think it was more a case of it can help prolong the life of the drive.
But I think the same article stated that it will take 7-10 years before the performance drops significantly and by that time you would have got another drive.

 

[voodooking]

http://www.computing.net/howtos/show/solid-state-drive-ssd-tweaks-for-windows-7/552.htmlWell on this page: http://www.computing.net/howtos/show/solid-state-drive-ssd-tweaks-for-windows-7/552.html Step 9 says to disable Write caching..