NCR 7458 - Manual (Page 34)

3-10 Chapter 3: Hardware Service
Replacing the Motherboard
Note: The Motherboard service assembly includes the sheet metal tray
and the PCI Tree Card.
1. Verify the board’s jumper settings. (See the Processor Board section)
2. Remove the CPU, Lithium Battery, and memory modules from the
old Motherboard assembly and install them on the new board. See
the Processor Board section later in this chapter for instructions how
to replace these items.
3. Follow the Removing the Motherboard instructions in reverse.
4. After powering up the terminal to verify that it is fully functional
you should re-flash the BIOS to ensure that it has the latest version.