Black +12 VDC Yellow | Dell C521 instruction

3	+5 VDC	Red

4	COM	Black

5	+12 VDC	Yellow

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Dell C521 specifications Black +12 VDC Yellow

Contents

September 2006 Rev. A00 About Your Computer Front View Back Panel I/O Connectors Back View of the Computer Back to Contents Recommended Tools Before You BeginGetting Started Turning Off Your ComputerPage Replacing the Computer Cover Removing the Computer Cover Memory Removing and Installing PartsDDR2 Memory Overview Installing Memory Cards Removing Memory Installing an Expansion Card Removing an Expansion Card Drives Power Cable Connector General Installation GuidelinesDrive Interface Connectors Connecting and Disconnecting Drive Cables CD/DVD Drive Installing a CD/DVD DriveRemoving a CD/DVD Drive Floppy Drive Removing a Floppy Drive Installing a Floppy Drive Media Card Reader Removing a Media Card Reader Installing a Media Card Reader Hard Drive Removing a Hard Drive Installing a Hard Drive Battery Replacing the Battery Processor Removing the Processor Installing the Processor Page Power Supply Replacing the Power Supply Front I/O Panel Removing the Front I/O Panel Installing the Front I/O Panel Fan AssemblyRemoving the Fan Assembly System Board Installing the Fan AssemblyRemoving the System Board Replacing the System Board Page Specifications Drives ConnectorsControls and Lights Physical PowerEnvironmental Overview System SetupEntering System Setup Overview System Setup Options System 64MB Boot Menu Post Behavior Clearing Forgotten Passwords and Cmos Settings Jumper Locations Clearing Password Settings Flashing the Bios Clearing Cmos Settings Inside View of Your Computer Technical OverviewSystem Board Components Jumper Settings Jumper Setting Description DC Power Connector P1 Power Supply DC Connector Pin AssignmentsPin Number Signal name AWG Wire DC Power Connector P4 DC Power Connector P2DC Power Connector P3 DC Power Connector P5 and P6 Black +12 VDC Yellow September 2006 Rev. A00 When to Use the Dell Diagnostics TroubleshootingDell Diagnostics Dell Diagnostics Main Menu Problem Description Suggested Resolution Diagnostic LightsPower Light Problem Description Suggested Resolution System Lights Beep Codes Code Cause