SSD just got slower

[DMZ]

I have an OCZ Vertex 2E and a Gigabyte X58A-UD3R.

This morning I took the SSD out of the GSATA2 port and tried it in the others, and I tried ACHI instead of IDE. Everythign was slower, so I put everything back how it was. Now though, my SSD scores 5.9 on Windows Experience Index rather than the 6.9 it scored before I started. I refreshed the score before starting, so 6.9 isn't out dated or anything like that.

I changed my RAM today too, but also changed it back.

Anyone got any ideas?

Thanks

EDIT: It gets these scores now in AS SSD Benchmark. I can't get scores from earlier today of course.

Seq: Read: 159.42MB/s. Write: 38.32MB/s.
4k: Read: 17.18MB/s. Write: 38.90MB/s.
4k-64Thrd Read: 18.62MB/s. Write: 31.73MB/s.
Acc.time: Read 0.224ms. Write: 0.311ms.
Score: Read: 52. Write: 74. Total: 155.

Thanks again

 

[Surveyor]

You should get the best performance by using an Intel SATA port and AHCI mode.

Did you apply this fix to enable the AHCI drivers before you swapped from IDE mode?

This only applies to Vista or Win 7.

 

[DMZ]

Did you apply this fix to enable the AHCI drivers before you swapped from IDE mode?

I'm sure I did this a long time ago, as it used to be that switching modes stopped the PC from booting. I've checked and the registry is set to allow AHCI, so I suppose that's good.

Changing to ICH doesn't seem to make any difference except for some partition alignment error in the benchmark program. Nonetheless, it should be possible to get things back to how they were when I got up today.

The only things which I can think of that have changed, is Windows installed a few drivers at certain configurations. Could that be relevant?

Thanks