New SB600 RAID/AHCI Driver from Windows Update

[DedEmbryonicCe11]

They were posted this week dated 10-02 and came out to be 3.1.1540.81 with a driver date of 9-30. As you can see I'm not noticing the "upgrade" at all:

2.5.1540.39 Driver (From Biostar CD):

3.1.1540.25 Driver (From May)

3.1.1540.81 Driver (Sep 30th/Oct 2nd)

I have the same crappy results with my OS drive (single 7200.10 drive). Same drop in burst speed and same massive increase in CPU usage. Something is not right here... Going to roll back the driver if necessary.

 

[fiream29]

You are either a glutton for punishment or you have large brass ones. Windows Update has a long and sad history of trashing systems with hardware "driver updates". Particularly controller drivers. Unless you just like doing Windows repairs or reloading the O.S. trust only drivers that have been verified for your particular application. And yes, I would roll back or reload that previous driver as it is significantly better. Good luck.
Fiream

 

[JimmiG]

I'm still using 1540.35. All newer versions have several problems:

-Several seconds delay when booting Windows while the computer does nothing.

-The harddrives shut down when doing a soft reboot, wearing out the spindle motor and increasing the time it takes to reboot.

Until those issues are fixed, I see no reason to use a newer version.

 

[DedEmbryonicCe11]

Rollback didn't help. I tried to eliminate other possibilities by uninstalling all the other stuff I could possibly think of that might be interfering with disk access...ASPI layer, Daemon Tools, Alcohol 120%, SPTD. Still the same crappy CPU overhead. Ugh. I'll figure it out eventually. Shame Windows doesn't just let you "update" a driver in the normal method to an older version without first uninstalling the device.