204 Solving Problems
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Memory Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
System Information Guide
.
Fill out the Diagnostics Checklist as you complete these checks.
CHECK THE KEYBOARD CABLE —
• Ensure that the keyboard cable is firmly connected to the computer.
• Check the cable connector for bent or broken pins and for damaged or frayed
cables. Straighten bent pins.
• Remove keyboard extension cables and connect the keyboard directly to the
computer.
TEST THE KEYBOARD — Connect a properly working keyboard to the
computer, and try using the keyboard. If the new keyboard works, the original
keyboard is faulty.
CHECK THE KEYBOARD SWITCH SETTING — Some keyboards have switch
settings that are on the bottom of the keyboard, sometimes behind a panel.
Ensure that the switch is set to PS/2, Enhanced XT/AT, or PC/AT. See the
keyboard documentation for recommended settings.
RUN THE DELL DIAGNOSTICS — Run the Dell Diagnostics. If any of the
diagnostics tests fail, see "Contacting Dell".
CHECK FOR INTERRUPT REQUEST CONFLICTS — See Resolving Software
and Hardware Incompatibilities.
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