Does it help if you switch the sata drive to compatibility mode in the bios?
If not you may want to give that a try. You are probably right that you will have to modify the txtsetup file.
Please read http://community.landesk.com/support/docs/DOC-1157.
You may have to try a few of different contollers in the list before it will load the correct driver. It can be a bit of trial and error before you get it working correctly.
Thanks for the reply, I have tried both methods you suggested without success.
There have been some cases related with HP where the solution was to download the drivers directly from the maker of the chipset.
From my understanding, usually HP drivers are only compatible with WinPE 2.0 (vista based) and LANDesk uses WinPE 1.1 (XP based).
Try and download the drivers directly from AMD and see if you have a better result.
Until now it has solved several issues with Intel NIC's and chipsets.