I'm debating whether to turn on AHCI or to stick with IDE for my Intel SSD+WD platter HD system.
I've found this tutorial for changing after OS install: AHCI : Enable in Windows 7 / Vista
but am a bit confused because according to MS the variable in the registry should be 0 (zero) not 3 !
To resolve this issue yourself, enable the AHCI driver
in the registry before you change the SATA mode of the boot drive. To do this, follow these steps:
Error message when you start a Windows 7 or Windows Vista-based computer after you change the SATA mode of the boot drive: "STOP 0x0000007B INACCESSABLE_BOOT_DEVICE"
- Exit all Windows-based programs.
- Click Start, type regedit in the Start Search box, and then press ENTER.
- If you receive the User Account Control dialog box, click Continue.
- Locate and then click one of the following registry subkeys: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci
- In the right pane, right-click Start in the Name column, and then click Modify.
- In the Value data box, type 0, and then click OK.
- On the File menu, click Exit to close Registry Editor.
Also am concerned that AHCI may not play nice with optical drives. Some have reported this at least.
Is the performance improvements worth it? My Windows Experience Index for my boot drive (Intel SSD) is currently 7.5 FYI
or is it simply best to have it for future firmware updates? does Intel recommend IDE or AHCI?
Thank you in advance