3-18 Options5. Repeat steps 2 for each SIMM to be installed.6. Replace any removed expansion boards.7. Replace the top cover and run Setup to reconfigure the computer for the addi-tional memory (see Section 2, Setup and Operation).SIMM Upgrade Kit TroubleshootingIf a fault occurs at power-on, verify that the reassembly was performed correctly. One beepindicates that the computer has completed its power-on self-test. If intermittent beepingoccurs, turn off the computer and try again. If the beeping persists, see Section 4,Maintenance and Troubleshooting.Table Section 3-8 summarizes problems that may develop after installing SIMM upgradekits and lists in sequential order suggested corrective actions.Table Section 3-8 SIMM Upgrade Problems and SolutionsProblem Symptom SolutionNo power Power lamp on computerstatus panel will not light.1. Check that the power cord is plugged into theAC connector on the computer. Check that theother end of the cord is plugged into a liveproperly grounded AC power outlet.Operatingsystem doesnot bootAn invalid configurationmessage is displayed.1. Press F1 to run setup and view parameters.MemorymalfunctionTotal memory is notrecognized.1. Reseat SIMMs. SIMM sticks must be inspecified banks (see Table Section 3-6).2. Systematically swap SIMMs.3. Replace SIMMs.4. Replace system board.Keyboard ormousemalfunctionMonitor has prompt, butcannot input data.1. Check that the keyboard is plugged in.2. Check that the mouse is plugged in.