Dell C521 specifications Drives

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1

PCI Express x16 card

2

lever

3

securing slot

 

 

 

 

 

 

4

securing tab

5

PCI Express x16 card connector

 

 

 

 

 

 

 

 

6. If you are removing the card permanently, install a filler bracket in the empty card-slot opening.

NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer.

7. Before you close the card retention door, ensure that:

The tops of all cards and filler brackets are flush with the alignment bar.

The notch in the top of the card or filler bracket fits around the alignment guide.

8.Close the card retention door by snapping it into place to secure the cards.

NOTICE: To connect a network cable, first plug the cable into the network port or device, and then plug it into the computer.

9.Replace the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.

10.Remove the card's driver from the operating system.

11.If you removed a sound card:

a.Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to On. See System Setup Options.

b.Connect external audio devices to the audio connectors on the back panel of the computer. See Back Panel I/O Connectors.

12.If you removed an add-in network connector:

a.Enter system setup, select Integrated NIC from the Onboard Devices group, and then change the setting to On. See System Setup Options.

b.Connect the network cable to the integrated connector on the back panel of the computer.

Drives

Your computer supports a combination of these devices:

One optional floppy drive or Media Card Reader

One CD or DVD drive

One serial ATA (SATA) hard drive

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Contents September 2006 Rev. A00 About Your Computer Front ViewBack Panel I/O Connectors Back View of the ComputerBack to Contents Recommended Tools Before You BeginGetting Started Turning Off Your ComputerPage Replacing the Computer Cover Removing the Computer Cover DDR2 Memory Overview Removing and Installing PartsMemory Installing Memory Cards Removing MemoryInstalling an Expansion Card Removing an Expansion Card Drives Power Cable Connector General Installation GuidelinesDrive Interface Connectors Connecting and Disconnecting Drive CablesRemoving a CD/DVD Drive Installing a CD/DVD DriveCD/DVD Drive Floppy Drive Removing a Floppy DriveInstalling a Floppy Drive Media Card Reader Removing a Media Card ReaderInstalling a Media Card Reader Hard Drive Removing a Hard DriveInstalling a Hard Drive Battery Replacing the BatteryProcessor Removing the ProcessorInstalling the Processor Page Power Supply Replacing the Power SupplyFront I/O Panel Removing the Front I/O PanelRemoving the Fan Assembly Fan AssemblyInstalling the Front I/O Panel Removing the System Board Installing the Fan AssemblySystem Board Replacing the System Board Page Specifications Controls and Lights ConnectorsDrives Environmental PowerPhysical Overview System SetupEntering System Setup OverviewSystem Setup Options System64MB Boot Menu Post BehaviorClearing Forgotten Passwords and Cmos Settings Jumper Locations Clearing Password SettingsFlashing the Bios Clearing Cmos SettingsSystem Board Components Technical OverviewInside View of Your Computer Jumper Settings Jumper Setting DescriptionPin Number Signal name AWG Wire Power Supply DC Connector Pin AssignmentsDC Power Connector P1 DC Power Connector P4 DC Power Connector P2DC Power Connector P3 DC Power Connector P5 and P6Black +12 VDC Yellow September 2006 Rev. A00 When to Use the Dell Diagnostics TroubleshootingDell Diagnostics Dell Diagnostics Main MenuProblem Description Suggested Resolution Diagnostic LightsPower Light Problem Description Suggested Resolution System LightsBeep Codes Code Cause