Thanks
I already make it work. Here's what I did courtesy of Insanelymac.com forum
1. download R154200.exe(drivers) and R154198.exe(intel matrix storage manager) from Dell Support Site (support.dell.com - under SATA)
2. download the attachment.
3. run R154200.exe and unzip the rar file you downloaded from step 2. you should create 2
directories with the names like R154200 and ATA2AHCI
4. go to ATA2AHCI directory and right mouse click on ahciraid.inf and select install from the menu.
5. go to R154200 directory and right mouse click on both iaahci.inf and iastor.inf and select
install from the menu.
NOTE: someone said step 4 is enough, but I did both step 4 & 5 and it worked.
6. reboot your system. press F2 at startup screen to go inside bios. change SATA operation
from ATA to AHCI. change Flash Cache Module from Off to Enable.
7. save and exit bios. now xp should boot normally.
8. in xp, run R154198.exe.
9. after reboot, you should see Intel 82801 HEM/HBM SATA AHCI Controller is installed
under device manager / IDE ATA/ATAPI controller. DONE!