AHCI for Esprimo E5720

[giulianoz]

My Esprimo E5720 has BIOS Release 6.00 R1.11.2594.A1 and BIOS Date 04/18/08 15:02:00.
In Advanced menu, and Advanced System Configuration I would like to use SATA0 COMPATIBILITY MODE = AUTO and SATA AHCI Enable but of course Windows XP don't start.
I want use msdinst to put in Critical Device Database the right Device ID and relative Driver.
Which is the right device? When
SATA AHCI id Disable I found
;Intel(R) ICH9 2 port Serial ATA Storage Controller 1 - 2921
;Intel(R) ICH9 2 port Serial ATA Storage Controller 2 - 2926

Thank you