Was this a message given by Windows or a message given by the application? What exactly was the message and could you override its warning?
Ok, I went to the Gigabyte website and I went to Support, Motherboards, Drivers and I typed in my model (GA-EP45-UD3R). I picked revision 1.1. For my OS, I picked Vista 64-bit. The Raid driver is called "intel ICH9R/ICh10R SATA RAID Driver. Once downloaded, I extract the contents and run iata_cd.exe. It throws the UAC saying program iata_cd.exe...verified publisher Intel Corporation. I click on Yes. It starts the install for the Intel Matrix storage manager driver. It brings me to the welcome screen, (version 6.2.1.1002). I click on Next to continue, it says, "This computer does not meet the minimum requirements for installing this software. Setup will exit". I'm left with an OK button. I did a right click, run as admin, and got the same thing.
A quick run through the readme says, "the Intel Chipset Software Installation Utility" must be installed prior to installing the Intel Maxtrix Storage manager. So, I've downloaded that now and have installed.
I then tried the SATA driver install again. This time, the installation starts and comes back with "This operating system is not supported. Setup will exit." I can click on OK. Win7 then says, it didn't install properly and gives me option to reinstall again with default settings. I say ok and the installer starts again. This time it starts up and says, "This computer does not meet the minimum requirements for installing this software. Setup will exit". I'm left with an OK button. I right click and choose Run As Admin, and I get "This computer does not meet the minimum requirements for installing this software. Setup will exit". I'm left with an OK button.
Also, are you sure your system is malware free?
I would certainly hope so. I downloaded the Windows 7 RC1 64-bit directly from Microsoft. I installed the OS and immediately tested. The machine wasn't even connected to the Internet.
I did reinstall my operating system last night. Tested and I am back to my original results...so my speeds average in the high 90's and peak in the 160-170 range...but I still see about 25-30ms access time.