Thanks Ropey, that's what I was looking for.
Now my current issue is stripping the HP without having to use a crow bar and sledge hammer. They build these thing to be difficult to work on and I think they do it on purpose.

I only hope when I put the build together and add her existing HDs the RAID configuration will be recognized.

I backed up her HD about a month ago onto DVDs so the info's saved but her OS is Pista (Vista) and we don't have an installation disc so if the RAID is not recognized and I have to reformat............
The other option is to reformat, load Win 7 and see if I can pull the stored info off the backup discs but I would prefer to go with a 64 bit Win 7 and her Pista was 32 bit.
I would go with 7. Vista is dog slow and never should have been created. It was a placeholder for a good OS as Me was for XP, Vista is for Win 7.
An OEM key is good for either x86 or x64.
I'm a bit confused. You are moving from Intel Core 2 to AMD? m7760n = Intel Core 2.
Yep. Here's the specs for the one that just died.
HP Media Center m7760n
Processor, Operating System and Memory
Processor
Intel® CoreTM 2 Duo Processor E6400 Intel® ViivTM Technology
2.13GHz, 2MB L2 Cache, 1066MHz Front Side Bus
Operating system installed
Genuine Windows Vista Home Premium
Standard memory
2048MB PC2-4200 memory(2x1024MB for ultimate performance) (expandable up to 4GB)
Memory type
DDR2-SDRAM
Memory slots
4 DIMM (240-pin, DDR2) (two available)
Internal drives
Internal hard disk drive
500GB SATA hard drive (2 x 250GB)
Hard disk drive speed
(7200 rpm)
Optical drive type
SuperMulti DVD Burner
Optical drive speed
16x DVDR, 8x DVD+RW, 6x DVD-RW, 8x DVD+R DL, 4x DVD-R DL, 5x DVD-RAM, 16x DVD-ROM, 40x CDR, 32x CDRW, 40x CD-ROM
System features
Memory card device
15in1 memory card reader
Modem
56k modem
Network interface
Ethernet 10/100BT integrated network interface
Video adapter
Intel® Graphics Media Accelerator 950
Video RAM
32MB dedicated graphics memory. memory. Up to 224MB Total Available Graphics Memory as allocated by Windows Vista
Compatible interactive TV services
NTSC TV tuner and over-the-air ATSC high-definition television tuner
Keyboard
HP wireless keyboard with extended range (up to 16 feet)
External drive bays
2 external optical drive bays, 1 internal HDD bay, 1 external HDD bay
External I/O ports
6 USB 2.0 ports (2 in front); 2 FireWire®-IEEE-1394 ports (1 in front)
Expansion slots
3 PCI slots (occupied) 1 PCI Express x16 Slot(z) (available)