Lost drives in XP Professional installation

Hi,

I recently tried to re-install XP Pro on a Dell GX270 and managed to corrupt the whole machine. I can no longer access the CD/DVD drive, floppy drive or hard drive. Does anyone know how I can get out of this? I have tried removing the hard drive, putting it into a spare machine (not a Dell machine) and reinstalling XP onto the drive while in that machine and everything was fine but I still cannot get the Dell to run when I put the drive back into it. Could it be that the wrong drivers are installed ? If so can anyone supply me with the correct drivers for a Dell GX270 and tell me how I can install them while the drive is in the spare machine