Windows7 installation

[saikumar_66]

hai. my name is saikumar. actually am not able to install windows7 on my desktop pc.

general properties:
system:
microsoft windows xp
service pack3

computer:
intel(R)
pentium(R)- 4
cpu 1.80GHZ, 1GB RAM

when am trying to boot from the dvd-rom after selecting dvd-rom as first boot device it is not get booted.
then i have tried the installation by turning-on my pc i opened the windows7 folder and clicked on set-up file. then it has copied the temporaryfiles and during selection of one of the drives(the very first drive) i got the error message as

""windows cannot be installed to the disk. windows needs the driver for device [PRIMARY IDE CHANNEL].""

CAN U PLEASE HELP ME IN THIS? AND THE MOTHER BOARD IS MERCURY.
MY MAIL ID: [personal info stolen by intergalactic space aliens]

 

[CompTIA_Rep]

Are you upgrading or fresh install.
If fresh install -> do this.

In bios, set your hard drive compatibility mode to ATA instead of ACHI or anything else.