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

7-2 Dell PowerEdge 2450 Systems Installation and Troubleshooting Guide
" #$
$
$
% &
In addition, Dell recommends that you periodically review the safety instructions for
this system.
The computer has two doors on the top of the system that provide access to the sys-
tem board and expansion cards. The doors interlock so that the keylock on the right-
side door secures both doors.
To open the computer doors, perform the following steps:
1. Observe the precautions in “Safety First—For You and Your Computer” found
earlier in this chapter. Also observe the safety instructions at the front of this
guide.
2. Slide the computer out of the rack.
3. Using the system key, turn the keylock on the top of the chassis to the unlocked
position (see Figure 7-1).
4. Press the two latches to release the right door (see Figure 7-1).
5. Lift the right door.
6. Lift the left door
When closing the doors, be sure to close the left door first and then the right door so
that the right door overlays the left door.










