Memory Problems - Dell Precision Workstation 450 User Manual

Memory Problems

CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Fill out the Diagnostics Checklist as you complete these checks.
204 So l vi n g Pro b l em s
C
H E C K T H E K E Y B O A R D C A B L E
• 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.
T — Connect a properly working keyboard to the
E S T T H E K E Y B O A R D
computer, and try using the keyboard. If the new keyboard works, the original
keyboard is faulty.
C
H E C K T H E K E Y B O A R D S W I T C H S E T T I N G
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.
R D D
U N T H E E L L I A G N O S T I C S
diagnostics tests fail, see "Contacting Dell".
C
H E C K F O R I N T E R R U P T R E Q U E S T C O N F L I C T S
and Hardware Incompatibilities.
—
— Some keyboards have switch
— Run the Dell Diagnostics. If any of the
System Information Guide
— See Resolving Software
.