Slow SSD?

[Scotty123]

I have the Crucial M4 128gb.

From my reading, it seems I should use the intel sata 2 slots, not the marvel sata 3 on my motherboard (Asus P7P55D-E) as they're rubbish. Running AS SSD benchmark confirms this, I get even worse results if connected to the sata 3 slots. Therefore I've kept it in the sata 2 slots.

Before I updated to firmware 0009 my results were

read write
seq: 264 178
4k: 23 59
4k-64k: 186 142

After I updated

read write
seq: 268 178
4k: 14 65
4k-64k: 185 144

I think I will never get near the stated speeds (550 etc) due to the controllers (correct?). I am wondering though why my 4k read has dropped after the firmware update, it seemed okay before, but now it seems terrible? I expected things to be better or at least the same, not a little worse after the update.

Thanks!

edit - I do have ACHI enabled.

 

[Scotty123]

No way around making the marvell controller work better, without buying a controller card or new mobo? Seems odd the sata 2 works better than the 3.

 

[Scotty123]

It seems I have to enable full sata 3 via 'io level up' on the motherboard, at the cost of the pci-e going to 8x.

It increases the seq read to 320. Still a poor read for 4k at 15 though .

It's odd I was getting about 23 before the firmware update.

Yes I have the latest windows drivers from the asus website for the controller. Doesn't seem to be any firmware though.