
38
Quick Reference Guide
A possible graphics card failure has
occurred.
1
If the computer has a graphics card,
remove the card, reinstall it, and then
restart the computer.
2
If the problem still exists, install a
graphics card that you know works and
restart the computer.
3
If the problem persists or the
computer has integrated graphics,
contact Dell
.
A possible floppy or hard drive failure
has occurred.
Reseat all power and data cables and
restart the computer.
A possible USB failure has occurred.
Reinstall all USB devices, check cable
connections, and then restart the
computer.
Light Pattern
Problem Description
Suggested Resolution
Summary of Contents for Precision D490
Page 4: ...4 Contents ...
Page 15: ...Quick Reference Guide 15 Front View 1 2 3 5 6 8 9 10 11 12 13 4 7 ...
Page 45: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Precision 工作站 690 快速參考指南 DCD0 型 ...
Page 48: ...48 目錄 ...
Page 80: ...80 快速參考指南 ...
Page 86: ...86 목차 ...
Page 122: ...122 빠른 참조 안내서 ...