Does the laptop have a solid state drive?
Anyway, AHCI is the "Advanced Host Controller Interface" and it does provide some improved performance over IDE. But, that rating of 5.9 may not increase (the WEI is kinda silly anyway).
Another benefit of the AHCI is Native Command Queuing:http://en.wikipedia.org/wiki/Native_Command_Queuing
However, if you switch over to AHCI, then Windows will have a BSOD upon bootup. To prevent this, you can set Windows up for AHCI before changing it in the BIOS (this is not my guide):Change from IDE to AHCI Mode after InstallationInformation:
AHCI stand for Advance Host Controller Interface. AHCI is a hardware mechanism that allows software to communicate with Serial ATA (SATA) devices (such as host bus adapters) that are designed to offer features not offered by Parallel ATA (PATA) controllers, such as:
- Native Command Queuing (NCQ) -might improve computer/system/hard disk responsiveness, especially in multi-tasking environment
You can read more about AHCI mode HEREInstruction
: There is one way to fix this, although you need to have knowledge of registry editing.
The detailed steps from Microsoft website are as follows:
- In the Value data box, type 0 [3 is default], and then click OK.
- On the File menu, click Exit to close Registry Editor.
- Restart your computer
- Go to BIOS and enable AHCI, Save & Reboot
- Another restart will be required to finish the driver installation.
Just download this Reg File
and double-click to implement AHCI on your Windows-based computer.
Just remember to do the BIOS switch as well when you reboot.
]]Edited by TwoCables - 3/4/11 at 8:05pm