Trouble With AHCI

[jimlau]

i have an ASUS M5A88-M motherboard, and a Western Digital WD2503ABYX HDD. i am trying to make that drive work in AHCI mode, but when I try, the disk won't boot. i think the HDD is AHCI compatble, tho not certain.

i went into the registry to set a value=o for the relevant AHCI parameter, but no luck.

if i need a full re-installation of W7 64-bit, does it prompt me along the way to set the mode to IDE or AHCI?

thanks.

 

[profdlp]

I'm assuming you had a look at this:

http://www.sevenforums.com/tutorials/61869-ahci-enable-windows-7-vista.html

Did you make sure and do Step 4 and enable it in the BIOS?

Some boards are picky about which ports support AHCI; which port is the drive on?

 

[jimlau]

i did all the steps listed. the relevant registry value was already set to zero, so i did not have anything to change in the registry.

i've tried the HDD and SSD in various ports, to no avail.

i wonder if when i first loaded the system, whether the ASUS drivers for AHCI are automatically installed, or if i have to go back and modify? is it safe to install motherboard drivers after i'm already up and running?