Hello Fernando,
As described in the german win-lite forum, i like to mod the BIOS of my MSI 785GM-E65 (SB710) to make AHCI available for my SSD.

Therefor I opened the actual BIOS (non-UEFI) with MMTool and found the PCI ROM DEV_4391. I liked to peplace this PCI ROM (RunLoc 1002:4391, RomLoc 0007F6A4) with the AMD AHCI ROM module v.3.2.1.0 I found in your forum (AHCI & RAID ROM Modules).
In the Replace-section of the MM-Tool I choosed the PCI ROM with DEV_4391,opened the module file v.3.2.1.0 (*.bin) and pressed "Replace". After that, the "RomLoc"-number has changed from 0007F6A4 into 0007D284, which was original RomLoc of the PCI ROM with the RunLoc 1002:4394. Is this how it should be?
For a better understanding you can find three screenshots attached.

Many thanks!
Joliet

Ok, than I will save the modded BIOS and try to flash the original one. Keeping the fingers crossed .

Thanks for your reply!

Regards,
Joliet

Hello Fernando,

Befor copying the modded Bios on a bootable USB-Stick must I change the Suffix from "*.ROM" back to "*.2C0"?

Thanks, Joliet!

Thanks!
I flashed the BIOS but after that, I couldn't find an AHCI-Option for the drives (beside the ahci option for RAID, which was already present in the original BIOS). I hoped, after the mod I would find something like that .
Regards,
Joiliet

I still have my HDD inside. At the moment, no AHCI driver is shown in the device manager. So I didn't realize a faster boot.
To activate AHCI, I think I have to install the driver (http://support.amd.com/en-us/download/ch...=Windows+8+-+32) and change the registry entry from "3" to "0" (HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci). After reboot - a change from IDE to AHCI in the BIOS is not possible - the HDD should run in AHCI-mode. Is this correct or is something missing?

Here is a screenshot of the device manager.

In the BIOS is no option to set the Sata-Controller to "AHCI" - except in the RAID-mode. There I can choose between "IDE" and "AHCI". And that was my intention to do the BIOS-mod. I hoped to find a possibility to have the choice between "IDE" and "AHCI" at the SATA-Controller. But there isn't.

Is it possible to run a single SSD/HDD in RAID-mode? I thought, for Raid two devices are minimum?

Hello Fernando,

Is it necessary to activate the AHCI-driver before connecting the SSD or can I install/attach the SSD and then activate AHCI in the BIOS?

The HDD I will disconnect during the installation of the SSD and after that I will reconnect and format the old system-partition. Is my understanding correct?

Thanks,
Joliet