Dell 420, 220S Pin Number Signal name Wire Color Wire Size, Pin Number Signal Name 18-AWG Wire

Page 41

DC Power Connector P1

Pin Number Signal name Wire Color Wire Size

1

3.3 V

Orange

20 AWG

2

3.3 V

Orange

20 AWG

3

RTN

Black

20 AWG

 

 

 

 

4

5 V

Red

20 AWG

 

 

 

 

5

RTN

Black

20 AWG

 

 

 

 

6

5 V

Red

20 AWG

 

 

 

 

7

RTN

Black

20 AWG

 

 

 

 

8

POK

Gray

22 AWG

 

 

 

 

9

5 V AUX

Purple

20 AWG

 

 

 

 

10

+12 V

Yellow

20 AWG

11

+12 V

Yellow

20 AWG

 

 

 

 

12

3.3 V

Orange

20 AWG

 

 

 

 

13

3.3 V

Orange

20 AWG

 

 

 

 

14

-12 V

Blue

22 AWG

 

 

 

 

15

RTN

Black

20 AWG

 

 

 

 

16

PS_ON

Green

22 AWG

 

 

 

 

17

RTN

Black

20 AWG

 

 

 

 

18

RTN

Black

20 AWG

19

RTN

Black

20 AWG

 

 

 

 

20

OPEN

 

 

 

 

 

 

21

5 V

Red

20 AWG

 

 

 

 

22

5 V

Red

20 AWG

 

 

 

 

23

5 V

Red

20 AWG

 

 

 

 

24

RTN

Black

20 AWG

DC Power Connector P2

Pin Number Signal Name 18-AWG Wire

1

GND

Black

2

GND

Black

 

 

 

3

+12 VADC

Yellow

 

 

 

4

+12 VADC

Yellow

DC Power Connectors P3, P4, P5, P6, P7, and P8

Pin Number Signal name 18-AWG Wire

1

+3.3 VDC

Orange

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Contents
Models DCSCLF, DCSCMF, Dcscsf Replacing the Bezel BezelRemoving the Bezel Back to Contents Click Save this program to disk, and then click OK Flashing the Bios From a CDFlashing the Bios From the Hard Drive Back to Contents Removing the Chassis Support Bracket Chassis Support BracketReplacing the Chassis Support Bracket Removing a PCI or PCI Express Card Installing a PCI or PCI Express CardPCI and PCI Express Cards Follow the procedure in After Working on Your Computer Network Type Installed Removed Card SoundReplacing the Coin-Cell Battery Coin-Cell BatteryRemoving the Coin-Cell Battery Visit support.dell.com Contacting DellReplacing the Computer Cover Computer CoverRemoving the Computer Cover Page Replacing the Processor ProcessorRemoving the Processor Page Removing a Hard Drive DrivesHard Drives Vostro Replacing or Adding a Hard Drive Vostro Removing a Media Card Reader Media Card ReaderPage Replacing or Adding a Media Card Reader Follow the procedure in After Working on Your Computer Removing an Optical Drive Optical DriveReplacing or Adding an Optical Drive Vostro 420 and Vostro Removing a Drive Bay Break-Away Metal PlateVostro 220s Removing the Chassis Fan FanReplacing the Chassis Fan Page Removing the Processor Heat Sink/Fan Assembly Processor Heat Sink/Fan AssemblyReplacing the Processor Heat Sink/Fan Assembly Removing the I/O Panel PanelReplacing the I/O Panel Replacing or Adding a Memory Module Memory ModulesRemoving Memory Modules Follow the procedure in After Working on Your Computer Replacing the Power Supply Power SupplyRemoving the Power Supply DC Power Supply Connectors DC Power Supply Connector Pin Assignments Pin Number Signal Name 18-AWG Wire Pin Number Signal name Wire Color Wire SizePin Number Signal Name 22-AWG Wire DC Power Connector P10Remove the System Board System BoardReplacing a System Board Page Entering the System Setup Program System Setup ProgramSystem Setup Program Screens OverviewBoot Sequence System Setup Program OptionsOption Settings Clearing Forgotten PasswordsChanging Boot Sequence for the Current Boot Changing Boot Sequence for Future BootsFlashing the Bios From the Hard Drive Clearing Cmos SettingsBack to Contents Back to Contents Power Lights TroubleshootingTools Beep CodesSystem Messages Fix a Problem section, click Hardware TroubleshooterHardware Troubleshooter Click Start→ Help and SupportStarting the Dell Diagnostics From Your Hard Drive Dell DiagnosticsWhen to Use the Dell Diagnostics Option Function Dell Diagnostics Main MenuTab Function Solving ProblemsBattery Problems Adjust the Windows volume control Drive ProblemsEnsure that Microsoft Windows Recognizes the drive Run Check DiskIeee 1394 Device Problems Error MessagesClick Uninstall Operating system not found Contact Dell see Contacting DellLockups and Software Problems Keyboard ProblemsCheck the keyboard cable End the programIf you experience other memory problems Memory ProblemsRun the Program Compatibility Wizard If you receive an insufficient memory messagePower Problems Mouse ProblemsNetwork Problems Verify that the printer is recognized by Windows Printer ProblemsClick Start → Control Panel→ Hardware and Sound→ Printer Click Properties and click PortsVerify that the scanner is recognized by Microsoft Windows Scanner ProblemsSound and Speaker Problems Check the monitor power light Video and Monitor ProblemsCheck the diagnostic lights Check the monitor cable connectionAccessing the Dell Support Utility Dell Technical Update ServiceDell Support Utility Click Start→ Control Panel→ Appearance and ThemesDouble-Clicking the Dell Support Icon Clicking the Dell Support IconRecommended Tools Working on Your ComputerBefore Working on Your Computer Turning Off Your ComputerInside View of Your Computer DIMM4 System Board ComponentsSATA2 SATA1 After Working on Your Computer
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