Quick Reference Guide
41
A possible USB failure has
occurred.
Reinstall all USB devices, check cable connections, and
then restart the computer.
No memory modules are
detected.
1
Reseat the memory modules to ensure that your computer
is successfully communicating with the memory.
2
Restart the computer.
3
If the problem still exists, remove all the memory modules
and install one memory module in memory module
connector DIMM_1.
4
Restart the computer.
A message appears stating that because your memory is
not paired, the system will operate with reduced
performance and reduced error-correction capability
5
Press <F1> to boot to the operating system.
6
Run the Dell Diagnostics. See your
User’s Guide
for more
information.
7
If the memory module passes, shut down the computer,
remove the memory module, and then repeat the process
with the remaining memory modules until a memory error
occurs during start-up or diagnostic testing.
If the first memory module tested is defective, repeat the
process with the remaining modules to ensure that the
remaining modules are not defective.
8
When the defective memory module is identified, contact
Dell for a replacement.
No memory modules are
detected.
• If you have one memory module installed, reinstall it and
restart the computer.
• If you have two or more memory modules installed,
remove the modules, reinstall one module, and then
restart the computer). If the computer starts normally,
reinstall an additional module. Continue until you have
identified a faulty module or reinstalled all modules
without error.
• If available, install properly working memory of the same
type into your computer.
• If the problem persists, contact Dell.
System board failure has
occurred.
Contact Dell for technical assistance.
Light Pattern
Problem Description
Suggested Resolution
book.book Page 41 Tuesday, January 10, 2006 2:58 PM
Summary of Contents for Precision MD506
Page 4: ...4 Contents book book Page 4 Tuesday January 10 2006 2 58 PM ...
Page 47: ...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 490 快速參考指南 DCTA 型 ...
Page 50: ...50 目錄 ...
Page 72: ...72 快速參考指南 內部視圖 1 電源供應器 2 可旋轉硬碟機支架 3 FlexBay 4 下部 5 25 吋磁碟機支架 5 上部 5 25 吋磁碟機支架 1 2 3 4 5 ...
Page 73: ...快速參考指南 73 內部視圖 已旋出的硬碟機支架 1 電源供應器 2 主機板 3 記憶體風扇 4 前部風扇 5 插卡風扇 1 2 3 4 5 ...
Page 74: ...74 快速參考指南 主機板元件 3 4 5 6 7 12 22 23 24 25 26 2 27 10 13 14 15 16 17 19 20 11 9 21 18 1 8 ...
Page 90: ...90 快速參考指南 ...
Page 96: ...96 목차 ...
Page 119: ...빠른 참조 안내서 119 내부 모습 하드 드라이브 베이를 회전하여 꺼내기 1 전원 공급 장치 2 시스템 보드 3 메모리 팬 4 전면 팬 5 카드 팬 1 2 3 4 5 ...
Page 136: ...136 빠른 참조 안내서 ...
