Quick Reference Guide
Table Of Contents
- 6741Utopcover
- 6741Ubk0toc
- 6741Uc10
- 6741Uc20
- 6741Uc30
- 6741Uc40
- 6741Uc50
- 6741Uc60
- 6741Uc70
- Contents
- Checking Inside the Computer
- Safety First—For You and Your Computer
- Opening the Computer Doors
- Removing the Optional Front Bezel
- Removing and Replacing the Expansion- Card Cage
- Removing the Expansion-Card Cage
- Replacing the Expansion-Card Cage
- Inside the Chassis
- Troubleshooting a Wet Computer
- Troubleshooting a Damaged Computer
- Troubleshooting the Battery
- Troubleshooting Redundant Power Supplies
- Removing and Replacing a Power Supply
- Troubleshooting a Cooling Fan
- Troubleshooting Expansion Cards
- Troubleshooting System Memory
- Troubleshooting the Video Subsystem
- Troubleshooting the System Board
- Troubleshooting the Diskette Drive Subsystem
- Troubleshooting a SCSI Tape Drive
- Troubleshooting SCSI Hard-Disk Drives
- Troubleshooting a RAID Controller
- Troubleshooting an Integrated RAID Controller
- Troubleshooting a PERC 2 Card
- 6741Uc80
- Contents
- Installing System Board Options
- Expansion Cards
- Installing an Expansion Card
- Removing an Expansion Card
- Adding Memory
- Memory Upgrade Kits
- DIMM Installation Guidelines
- Performing a Memory Upgrade
- Installing DIMMs
- Removing DIMMs
- Upgrading the Microprocessor or Installing a Secondary Microprocessor
- Removing a Terminator Card
- Installing a Terminator Card
- Removing the SEC Cartridge and Heat Sink Assembly
- Replacing the SEC Cartridge and Heat Sink Assembly
- Activating the Integrated RAID Controller
- Replacing the Battery
- 6741Uc90
- 6741u100
- Contents
- Installing Hard-Disk Drives
- Preparing SCSI Hard-Disk Drives for Installation
- SCSI Hard-Disk Drive Configuration
- Partitioning and Formatting SCSI Hard-Disk Drives
- General Information on Cabling
- Installing SCSI Hard-Disk Drives
- Installing a Dell PowerEdge Expandable RAID Controller Host Adapter Card
- Installing a SCSI Backplane Daughter Card
- Configuring the Boot Device
- 6741u110
- 6741UappendixA
- 6741UsafetyInstructions
- Contents
- Safety Instructions
- Notes, Notices, Cautions, and Warnings
- Safety Caution and Warnings
- Additional Safety Precautions
- General Precautions
- Precautions for Server and Storage Systems
- Precautions for Rack-Mountable Products
- Precautions for Products With Modems, Telecommunications, or Local Area Network Options
- Precautions for Products With Laser Devices
- When Working Inside Your Computer
- Protecting Against Electrostatic Discharge
- Ergonomic Computing Habits
- 6741Upreface
- 6741Ugabbrev
- 6741Ubk0lof
- 6741Ubk0lot
- 6741Ubk0toc

7-8 Dell PowerEdge 2450 Systems Installation and Troubleshooting Guide
To troubleshoot a damaged computer, perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect the sys-
tem from its electrical outlet.
'()*+,1.!+/1
2. Open the computer doors.
3. Check the following connections:
Expansion-card connections to the expansion-card cage
Drive carrier connections to the SCSI backplane board
4. Verify all internal cable and component connections.
Make sure that all cables are properly connected and that all components are
properly seated in their connectors and sockets. Pay particular attention to the
interposer board and PSDB (if installed).
5. Close the computer doors and reconnect the system to the electrical outlet.
6. Run the system board tests in the Dell Diagnostics.
Did the tests run successfully?
Ye s . The system is operating properly.
No. See Chapter 11, “Getting Help,” for instructions on obtaining technical
assistance.
#$
If an error message indicates a problem with the battery, or if the System Setup pro-
gram loses the system configuration information when the computer is turned off, the
battery may be defective.
To troubleshoot the battery, perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect the sys-
tem from its electrical outlet.
'()*+,1.!+/1
2. Open the computer doors.
3. Check the connection of the coin cell battery to the system board.
See “Replacing the Battery” in Chapter 8, “Installing System Board Options,” for
information on gaining access to the battery socket.










