AHCI drives not recognized in RAID mode.

[MarkJohnson]

I just connected two Seagate drives to try and improve my Win7 performance scores. I was getting 5.5 with my slow WD drives. I connect my drives, set RAID in BIOS, configure RAID for RAID 0 with 128k on my two Barracuda ES2 drives and my score only went up to 6.1. I was expecting more since my slow WD drive scores 5.5 at around 60/mbs and my Seagates each run over 90/mbs. Being 50% faster each and having a pair of them seems like it would generate a higher score. maybe it's bugged?

anyway, I went back into my WD drive to rerun some tests and it BSODs on me. I try repair with no luck and decide to revert back to AHCI mode and now all is well.

I thought RAID mode has AHCI enabled? shouldn't I be able to see my AHCI drives in RAID mode? Is there a way to correct this? When I enter BIOS it lets me select my AHCI drive as boot drive. or is it a Win 7 thing?

-=Mark=-

[cluberti]

The score is based on far more than just how fast the drives do sequential reads and writes. See this thread for more info and how to check and see how your drives score.

[MarkJohnson]

Thanks for the link, and I do have Seagate drives. The Barracuda ES2 drives. I do get fails on assessment often and during the drive tests. It says it is in use or driver issues. I just removed the SATA I jumper and now my drives run in SATA II mode, but my scores are now worse? I was getting 6.1 and now 5.9.

Not sure what else to try. I see no firmware updates at Seagate and I am using the default driver (Intel) from install. Maybe I'll try the latest Intel Matrix Storage Manager at intel.com and see if it improves.

-=Mark=-