Transferring Clone of Windows 2003 SBS to a Different Server

I have a Dell PowerEdge 800 Server. I need to make some major modifications to the OS, but b/c this is a primary production server, decided I should first clone the entire HDD and copy it on to a test server where I can make all the changes I want without fear of bringing down the primary server. But the complication is that I don't have a spare PowerEdge 800 server lying around. So I need to copy the cloned system to a PowerEdge 400SC server. But there is a big difference...the 800 is using a SATA drive connected via a RAID card (but in JBOD mode) and the 400SC is running an IDE HDD connected right to the system board.

I used Clonezilla to clone the primary server to an external HDD. Had no problem copying that cloned image to the 400SC. As expected, the 400SC is unable to boot b/c many of the hardware drivers are for the 800 server. I was hoping I could just run a repair install of 2003 SBS Server to update to the correct drivers. But this is not the case.

I can boot of the Windows 2003 SBS CD and request that the OS be installed on the already existing partition. It seems to start to work just fine, but then when the system automatically reboots to continue the install, the server just freezes up.

Guessing the obvious problem is that at this stage Windows is still trying to boot using RAID drivers for a card which doesn't even exist on the new server.

Anyone know a way to work around this problem so I can complete the repair install of Windows??