Sandisk Extreme II SSD Slow

[Mamong]

I recently bought a Sandisk Extreme II 240gb SSD to speed up my PC a bit. After installing the drive and doing a clean install of Windows, I get the following in AS-SSD benchmarks.

http://i.imgur.com/YQbqZ96.png

These speeds seem a little bit slow and I am confused what the cause may be.

My motherboard is an Asrock 960GM/U3S3 which has 2 SATA III ports (both use an ASMedia 106x Controller).

I've tried the following and my benches are still around the mark posted in the image:

• 
  Checked for latest firmware using the Sandisk SSD Toolkit (SSD has latest firmware)
  Plugged the SSD into both the SATA III ports
  Re-installed Windows (tried both 7 & 8.1)
  Tried both the pre-installed Windows AHCI driver & the ASMedia driver
  BIOS reports that the SSD is running in AHCI mode

Any suggestions?

 

[spentshells]

How full is the psu?

 

[Mamong]

How full is the psu?

I wouldn't think its too bad? It's an Antec 550W PSU. I've got an AMD FX-6300, a Radeon 7870, the SSD and another HDD with some RAM and that's about all on it. Would that be enough to be pushing it to its limits?

 

[mad-max79]

Everything is ok, your controller is the problem, which can't get solved. Just take it as it is.

 

[Mamong]

Everything is ok, your controller is the problem, which can't get solved. Just take it as it is.

Ah really? That's a bit of a shame.. will I notice any difference in day-to-day running compared to being able to reach the full speeds of the drive?

 

[Y0GI]

Are you sure that you have the latest Asmedia driver? Check Asrock website? Check Asmedia site?

Are you positive that you are plugged into the Asmedia port, because those speeds sure look like SATA II?

Yogi

 

[Mamong]

Are you sure that you have the latest Asmedia driver? Check Asrock website? Check Asmedia site?

Are you positive that you are plugged into the Asmedia port, because those speeds sure look like SATA II?

Yogi

Device Manager on Windows 8.1 reports the ASMedia 106x SATA Controller is there. I used the latest available driver from ASRock. Benchmarks with both the MS default driver and the ASMedia driver give roughly the same speeds (tried with both on fresh installs)...

I checked the motherboard again, definitely plugged into the ASMedia ports. The manual says that they are SATA III 6.0gbs ports.

I took a photo of the ports and I noticed something that I think is a bit strange: http://i.imgur.com/YrCkmMV.jpg

There are the white SATA III ports named SATA3_1 and SATA3_2 respectively, however, underneath that is the label SATAII_5 and SATAII_6. Why would it be labelled this way..?

 

[Ben Higham]

i am having similar problems , i have a sabertooth 990FX r 2 motherboard and sandisk ultra 2 120GB ssd and my benching seems awfull compared to the speeds that sata 6gb is supposed to give , around 500 meg i think?

my build cost me 700 and im now looking at sending the mobo back for one with a more ''true as advatised'' sata connection