3-12 Options
Dual Processor Troubleshooting
If a fault occurs at power-on, verify that the installation was performed correctly. One
beep indicates that the computer has completed its power-on self-test. If intermittent
beeping occurs, turn off the computer and try again. If the beeping persists, see Section 4,
Maintenance and Troubleshooting.
Table Section 3-2 summarizes problems that may develop after installing a dual processor
and lists in sequential order suggested corrective actions.
Table Section 3-2 Dual Processor Problems and Solutions
Problem
Symptom
Solution
No power
Power lamp on computer
status panel will not light.
1
. Check that the power cord is plugged into the
AC connector on the computer. Check that
the other end of the cord is plugged into a live
properly grounded AC power outlet.
Operating
system does
not boot
An invalid configuration
message is displayed.
1
. Press
F2
to run Setup and view parameters.
Dual
Processor
malfunction
Software does not see Dual
Processor.
1
. Reseat the Dual Processor.
2
. Check the Setup parameters
3
. Check the switch settings (see Section 2).
4
. Replace dual processor.
5
. Replace system board.
Keyboard or
mouse
malfunction
Monitor has prompt, but
cannot input data.
1
. Check that the keyboard and mouse are
plugged in.
SIMM Configurations
The SIMM kits install into SIMM sockets on the memory expansion board. The computer
supports 1MB x 36, 2Mx26, 4Mx36, and 8Mx36, 70 ns or 60 ns SIMM modules. Each kit
is inserted into a pair of “by 36” SIMM sockets or banks. The memory board's four SIMM
sockets are assigned as banks 0, 1, 2, and 3 (see Figure Section 3-9). . Different size SIMM
upgrade kits may be intermixed, although SIMM sticks within a bank must be the same
size and speed. For interleaving, install the same capacity SIMM kits in two banks.
The standard memory shipped with the system is pre-installed into bank 0 (sockets J1 and
J5). Sockets J4 and J8 form bank 1, sockets J2 and J3 form bank 2, and sockets J7 and J6
form bank 3.