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What's the deal with 7 and RAID 5

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Weeman

Member
Joined
Nov 5, 2009
I've done some looking around and can't seem to find a straight answer, so I thought I'd bring it to my "brain trust." RAID 5 and Windows 7 don't get along.

I've got 4x WD 1.5TB drives and a Seagate 500GB drive. The Seagate drive is where windows 7 is installed, and I'm trying to set up a new RAID 5 array with the WD drives. I set my storage configuration in the BIOS, then Create New Volume in the RAID setup... all good, no issues. Then restart and try to load Windows from the non-RAID drive, blue screen and restarts. Then when I swich my storage configuration back to IDE (not RAID) in the BIOS, it loads fine (Disk Management shows all drives online and unpartitioned). Also tried software RAID, but RAID 5 is greyed out in disk management.
My next step is trying to reinstall Windows on the new RAID volume and see if that helps, but I was wondering if anyone has run into this before.

Base model Asus P5Q (onboard RAID 5 support)
4 WD drives + 1 Seagate Drive
Window 7 x64 Ultimate RTM
 

Mr.Guvernment

Member
Joined
Feb 26, 2003
you cant change you're bios to RAID if it was not set as RAID when you installed windows, you need to do a repair install of Windows so it can load the proper drivers to work with Raid.