Problem Cause Possible Solution
Workstation date and
time display is incorrect.
Real-time clock (RTC)
battery might need to be
replaced.
1. Reset the date and time under Control
Panel.
2. Replace the RTC battery.
Workstation appears to
pause periodically.
Network driver is loaded
and no network connection
is established.
Establish a network connection, or use
Computer Setup or Microsoft Windows Device
Manager to disable the network controller.
Cursor will not move
using the arrow keys on
the keypad.
The Num Lock key
might be on.
Press Num Lock. The Num Lock key can be
disabled (or enabled) in Computer Setup.
Poor performance is
experienced.
Processor is hot. 1. Be sure airflow to the workstation is not
blocked.
2. Be sure the fans are connected and working
properly (some fans only operate when
needed).
3. Be sure the CPU heatsink is installed
properly.
There is not enough
memory.
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
Add more memory.
Hard drive is full. Delete data from the hard drive to create more
space on the hard drive.
Table 6-3 Minor problems (continued)
138 Chapter 6 System diagnostics and troubleshooting ENWW
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