Personal Computer User Manual
Table Of Contents
- Hardware Owner’s Manual
- Contents
- About Your System
- Using the System Setup Program
- Installing System Components
- Recommended Tools
- Inside the System
- Removing and Replacing the Optional Front Bezel
- Opening and Closing the System
- Cooling Fans
- Cooling Shrouds
- Power Supplies
- Expansion Cards
- RAC Card
- System Memory
- Processors
- Processor VRMs
- Installing a Diskette Drive
- Installing an Optical Drive
- Hard Drives
- SAS Controller Cards
- Connecting an External SAS Tape Drive
- Connecting an External Fibre Channel Storage Device
- System Battery
- Control Panel Assembly (Service-Only Procedure)
- Fan Interposer Board (Service-Only Procedure)
- Power Distribution Board (Service-Only Procedure)
- Chassis Intrusion Switch (Service-Only Procedure)
- SAS Backplane (Service-Only Procedure)
- System Board (Service-Only Procedure)
- Troubleshooting Your System
- Safety First-For You and Your System
- Start-Up Routine
- Checking Basic Power Problems
- Checking the Equipment
- Troubleshooting Serial I/O Problems
- Troubleshooting a NIC
- Troubleshooting a Wet System
- Troubleshooting a Damaged System
- Troubleshooting the System Battery
- Troubleshooting Power Supplies
- Troubleshooting System Cooling Problems
- Troubleshooting System Memory
- Troubleshooting a Diskette Drive
- Troubleshooting an Optical Drive
- Troubleshooting a Hard Drive
- Troubleshooting a SAS Controller or SAS RAID Controller
- Troubleshooting an External SAS Tape Drive
- Troubleshooting Expansion Cards
- Troubleshooting the Microprocessors
- Running the System Diagnostics
- Jumpers and Connectors
- Getting Help
- Glossary
- Index

106 Troubleshooting Your System
Troubleshooting a Fan
Problem
• System-status indicator is amber.
• Systems management software issues a fan-related error message.
• Front panel LCD indicates a problem with the fan.
• Fan status indicator indicates a problem with the fan.
Action
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the
components inside the system. Before performing any procedure, see your Product Information Guide for
complete information about safety precautions, working inside the computer and protecting against electrostatic
discharge.
1
Run the appropriate online diagnostic test. See "Using Dell PowerEdge Diagnostics" on page 117.
2
Open the system. See "Opening and Closing the System" on page 46.
CAUTION: The cooling fans are hot-pluggable. To maintain proper cooling while the system is on, only replace
one fan at a time.
3
Locate the faulty fan indicated by the LCD panel, the diagnostic software, or the fan indicator that is
blinking amber. For the identification number of each fan, see Figure 3-4.
4
Ensure that the faulty fan's power cable is firmly attached to the fan power connector. For a hot-plug
fan, remove and reseat the fan. See "Cooling Fans" on page 48.
NOTE: Wait 30 seconds for the system to recognize the fan and determine whether it is working properly.
5
If the problem is not resolved, install a new fan. See "Cooling Fans" on page 48.
If the replacement fan is working properly, close the system. See "Opening and Closing the System" on
page 46.
If the replacement fan does not operate,
see "Getting Help" on page 129.
Troubleshooting System Memory
Problem
• Faulty memory module.
• Faulty system board.
• Front-panel status LCD indicates a problem with system memory.










