Rear Frus; Modules (Cpu, Memory, I/O, Futurebus+) - DEC 4000 AXP Service Manual

5.3 Rear FRUs

The following sections contain the part numbers of the FRUs accessed at the rear
of the system. Text is provided for additional procedures or precautions.
Refer to Figure 5–8 for the location of rear FRUs.

5.3.1 Modules (CPU, Memory, I/O, Futurebus+)

Part Number
B2001–AA
B2002–BA
B2002–CA
B2002–DA
B2101–AA
Removal and Replacement Tips
The two small Phillips screws on each module are used to seat the
modules. Loosen these screws before you remove the modules.
To replace the I/O module:
1. Record the customer's nonvolatile environment variable settings using the
table in Appendix C. The
2. Record the version of the console program. The
displays the console version.
3. Remove the I/O module and move the two socketed Ethernet address ROMs
(labeled ''Enet Adrs'') to the new I/O module. Refer to Figure 5–9 to locate the
Ethernet address ROMs.
4. Install the new I/O module and power up the system. If the system passes
power-up tests, note the version of the console program. If the console version
of the new I/O module is less than that of the module you removed, update
the firmware using the CD–ROM shipped to the customer.
5. Complete acceptance testing using the
6. Set the nonvolatile environment variables to the customer's original settings.
Use the set command as shown in the examples below:
5–16 Repairing the System
Name
KN430 processor module
MS430–BA 32-MB memory module
MS430–CA 64-MB memory module
MS430–DA 128-MB memory module
KFA40 I/O module
Note
command lists all the environment variables.
show
test
command
show config
command.