case where sata 3 is slower?

[dipr]

my laptop is limited to sata 2 speeds

i had a old samsung 64gb sata 2 SSD

i replaced it with a new 120gb OCZ vertex 4 SSD, sata 3

the new one seems to run slower! all the drive settings are correct,etc.

for example loading windows seems a few seconds slower.

can it be possible? and would it be the larger size, or a 'bottleneck' in speed somewhere?

 

[Elixer]

How did you install the OS to the new drive ? What OS is it anyway ?
Is the alignment correct for the SSD (depends on how you cloned or whatever you did to the new SSD) ?

 

[2is]

It's not all about the interface speed. The controller and actual memory chips plays just as big of a role. In this case you went from one of the best SSD brands to one of the worst.

 

[Fayd]

It's not all about the interface speed. The controller and actual memory chips plays just as big of a role. In this case you went from one of the best SSD brands to one of the worst.

.... no, not really.

 

[2is]

.... no, not really.

Yea, really.

 

[F1shF4t]

Yea, really.

Well it depends what the old Samsung SSD was. If it's a 470 then its possible cause it was fast.

If it's the old RBB based SSD then no way it can be faster than a Vertex 4. Samsung SSDs before the 470 were slower than even the original Vertex. http://www.anandtech.com/show/2829/19

 

[philipma1957]

The problem may be the vertex does not like the laptops chip set. I have seen this with a lot of Apple and OCZ ssds.

When you put a SATA III in a SATA II mobo it works like a SATA I.

Older mac minis 2009 and 2010 Have this issue as does 2009 2010 Macbook Pros. It may not be fixable.

 

[ShintaiDK]

It's not all about the interface speed. The controller and actual memory chips plays just as big of a role. In this case you went from one of the best SSD brands to one of the worst.

^^ This.

 

[ShintaiDK]

When you put a SATA III in a SATA II mobo it works like a SATA I. /QUOTE]

No, they work as SATA II.

 

[dipr]

thanks for replies.

yes it was windows 7, on a thinkpad. so alignment should be good. still a mystery i guess. perhaps samsung IS faster