
3
Upgrading the VAX 4000 Model 100A
System
3.1 In This Chapter
This chapter lists detailed step-by-step procedures for upgrading a VAX Model
100A system to a VAX Model 105A system.
3.2 Procedure Overview
The conversion procedure is summarized next. To begin the actual conversion,
turn to Section 3.3.
1. Have the customer back up the system software.
2. Unpack and verify the conversion kit.
3. Shut down the operating system and run the power up diagnostics.
4. Turn off the system power and remove the power cord.
5. Remove the enclosure cover.
6. Remove the SIMMs (memory modules).
7. Remove the upper and lower drive mounting shelves.
8. Disconnect and remove the DSSI daughter card.
9. Disconnect all internal cables from the port cover to the CPU module,
daughter cards and the drives.
10. Remove the CPU module.
11. Install the new CPU module.
12. Reinstall the SIMMs.
13. Reconnect all cables and daughter cards to the CPU module.
14. Reinstall the upper and lower drive mounting shelves in the system box,
and reconnect all cables.
Upgrading the VAX 4000 Model 100A System 3–1