Western Digital WD20EARX Bad Performance?

[PiKe]

This is connected to my SATA3 port partitioned into 60gb C: and the rest as D:

Why isn't the curve linear? Or for why isn't there a curve for that matter?

 

[PiKe]

There is a curve, it's just got a lot of dips in it.

What sort of SATA 3 port is it connected to?

It it's something like Marvell then swap the cable over to a SATA port native to the chipset even if it's SATA 2.

Also you're testing your OS drive.

If something else is trying to read or write data at the same time as you're benchmarking it's going to have an effect.

Its a Gigabyte Z68ap-d3 I think both controllers are Intel.

 

[PiKe]

Safe mode (looks like you were right), I tried imaging my boot partition to my sata2 drive and whilst successful I cannot make it boot from it, it defaults to sata3 every time, anyhoo...

 

[PiKe]

Try changing the boot order in the BIOS.

If you now have a Windows installation on 2 HDD's your system will boot from whichever is listed first in the boot order in the BIOS.

Tried this too, won't play ball.

At least I know the drive is OK...