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Newbie
Posts: 1
Registered: ‎11-26-2013

Slow speeds - Please Help

Hi all,

 

My ssd does not seem to be performing well.

 

Specs:

Windows 8.1 Pro

Intel i7 930

asus p6x58d-e

achi enabled

 

ssd is installed on SATA 3

 

What is going wrong?

Thanks

 

 ATTO

SanDisk Guru
Posts: 4,115
Registered: ‎07-18-2007

Re: Slow speeds - Please Help

[ Edited ]

The board you have has 6 SATA 2 and 2 SATA 3 ports so first make sure you are actually in a SATA 3 port. Unfortunately the SATA 3 ports on the MB you have are on a Marvell controller. The marvel chipset is notorious for being slow so that may be the best speed you will see on that MB. 

SanDisk User
Posts: 92
Registered: ‎10-29-2013

Re: Slow speeds - Please Help

Looks like you may need to use that instead. The speed isn't that really bad after all though.
Newbie
Posts: 3
Registered: ‎11-10-2014

Re: Slow speeds - Please Help

[ Edited ]

I also have very similar performance results on my 120G drive. My configuration is as follows:

 

Gigabyte H55M-USB3 main board

Windows 8.1 Pro

Intel Core i7 870 2.93GHz

 

AHCI is enabled.

 

SSD is used on 3GB/s port since my motherboard only has these available.

 

I would like to thank you beforehand for your time and support.

 

ATTO Benchmark results

 

 

SanDisk Guru
Posts: 4,115
Registered: ‎07-18-2007

Re: Slow speeds - Please Help

that is the max speed you will get out of a 3Gb port. to get the fulkl speed you will need a 6Gb port. 

Newbie
Posts: 3
Registered: ‎11-10-2014

Re: Slow speeds - Please Help

If I am to upgrade my MB, what should I check other than being 6GB/s speeds? Any particular producer known to be good?

Newbie
Posts: 3
Registered: ‎11-10-2014

Re: Slow speeds - Please Help


drlucky wrote:

that is the max speed you will get out of a 3Gb port. to get the fulkl speed you will need a 6Gb port. 


Btw, If it is not too complicated or technical to explain, since 450MB/s is very low compared to 3GB/s. why it is not possible to get full speed on that port?

SanDisk Guru
Posts: 4,115
Registered: ‎07-18-2007

Re: Slow speeds - Please Help

3Gb is 300 MB/s theoretical speed. reality is more along the lines of 250. the speed you are seeing is normal for a 3Gb post. 

Highlighted
SanDisk Senior User
Posts: 106
Registered: ‎10-24-2013

Re: Slow speeds - Please Help

Late to the party but for reference

http://www.tomshardware.com/reviews/ssd-upgrade-sata-3gbps,3469.html

Even 3gbps not that much difference in real world usage.