Intel's x64 drivers voor ich9r sata raid are not properly recognized by windows 7 rc. This applies to the drivers that come with the intel matrix storage manager 8.8 installation package (IIF2\Winall\Driver64\iaStor.inf and IIF2\Winall\Driver64\iaAHCI.inf) as well as those that are included within the 64-bit Floppy Configuration Utility. I believe that these are the same driver files.
The problem occurs on my pc after creating a raid 10 partition (4 drives mirrored and striped) while doing a clean installation of windows 7 rc (with a non-corrupted dvd). With bios in raid windows 7 rc doesn't recognize the volume altogether and the installation will fail. Windows 7 will either ask for an unspecified device driver or tell you that a cd/dvd device driver is missing.
Enabling ahci in the bios for both the controller and the drives resolves this but shows the actual drives that make up the raid volume.
Enabling ahci in the bios for just the drives, leaving the controller in raid mode appears to solve the problem.
However, windows 7 rc will then tell you that it is not able to install on the selected volume, ask for the mentioned drivers and fail miserably at installing them with effect.
After thinking about this for a while this is what i think. I think i was still using 32-bit intel matrix raid to create my raid 10 volume in the first place.
Presumably there are two ways around this:
Option one - get a floppy, install the 64 bit drivers in dos mode, create the volume again and try again. But wait, I don't have a floppy.
Option two - delete the volume. Set the controller back to ahci. Install windows rc 7 on (a partition of) one of the four drives. Now boot into win7 rc and install matrix storage manager. Next, create a full back-up of the installation (only available in business and ultimate, i believe) on an external drive. Reboot. Set the bios back to raid. Boot into intel raid storage manager (Ctrl-I) Configure intel-raid again, giving the raid-10 volume the exact same size as the installation on the single drive. From the windows 7 rc installation, restore the back-up on this volume. Think that's difficult? Still easier than getting a floppy drive to work properly on this main board.
I'll let you know if this will work. If you don't hear from me again, asume that intel and vista still have some work to do (it's the 21st century for pete's sake, floppies, come ON!). See also this link for another approach:
And this link (dutch) for creating a bootable usb drive:
Wish me luck,