Dual Processor Troubleshooting; Simm Configurations - NEC IMAGE P100E Service Manual

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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
No power Power lamp on computer
status panel will not light.
Operating An invalid configuration
system does message is displayed.
not boot
Dual Software does not see Dual
Processor Processor.
malfunction
Keyboard or Monitor has prompt, but
mouse cannot input data.
malfunction

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.
Solution
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.
1. Press to run Setup and view parameters.
F2
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.
1. Check that the keyboard and mouse are
plugged in.