What version is your motherboard? Please verify by looking at the board's PCB in the lower left corner near the bottom corner/PCIE slots. Once you let me know for sure I can modify a BIOS for you with an updated J.Micron ROM (The IDE controller).
Also, all revisions of this board now use a different BIOS name scheme (All letters, no F7, F8, ect), so I think you'll probably need to update using a special tool, so you can get on the latest BIOS releases, if you can't update manually via "Update from Disk" with @BIOS
Why are you using IDE mode for your SATA devices? Just checking.
Yes, you must be in AHCI mode to install Intel AHCI drivers I linked above, this is suggested!
You will need to make the following registry changes in windows BEFORE you change the BIOS to AHCI.
Enable switching between all IDE/AHCI/RAID modes by changing "Start" Values in these keys to 0 (Win 7 / Vista ONLY)
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci\Start
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Pciide\Start
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor
V\Start
If you do not feel comfortable editing the registry, Microsoft has a "Fix it for me" here
http://support.microsoft.com/kb/922976