Dell XPS H266, XPS H233 manual DC Power Distribution

Page 20

power supply

3.3VDC

GND

PWRGOOD

+12 VDC

+5 VDC

–5 VDC

+5 VDC

GND

+5 VSB

PSON#

power switch

P1

P2

P3

P5

P4

P6

P7

5.25-inch

drive

5.25-inch

drive

3.5-inch drives (second drive uses Y-cable)

3.5-inch

diskette drive

primary

hard-disk drive

secondary

hard-disk drive (uses Y-cable)

J9D1

POWER

J7M1

PSON#

battery

RTC

GND

GND

+5 VSB

J7J2

+5 VDC

GND

GND

J7J1

+5 VDC

+5 VDC

–5 VDC

GND

–12 VDC

+5 VDC

J6J2

+12 VDC

GND

+5 VDC

GND

J6J1

fuse

GND

+5 VDC

GND

+5 VDC

2.1–2.8 V

1.5-V

converter

converter

fuse

GND

+5 VDC

+2.1–2.8 VDC

GND

CPU/system

+1.5 VDC

+12 VDC

logic

GND

ISA connectors

PCI connectors

KEYBRD

MOUSE

USB

J8L1

system board

Figure 1-6. DC Power Distribution

1-10 Dell Dimension XPS H233 and XPS H266 Systems Service Manual

Image 20

Contents

659,&0$18$ Page HOOLPHQVLRQ36ä+DQG36+6\VWHPV Page Contents Chapter Beep Codes and Error Messages Chapter Removing and Replacing PartsIndex FiguresTables Page Read This First System Overview System Features Computer Orientation Desktop Computer Features Mini Tower Computer Features Back-Panel Features Typical Advanced Expansion SubsystemEide Subsystem Hard-Disk Drive OptionsComputer Service Power SupplyDC Power Distribution DC Power CablesDC Power Distribution DC Power Connector Pin Assignments DC Power Connector P1DC Power Connectors P2, P3, P4, P5, and P6 System Board Main MemorySystem Board Jumpers 11. System Board JumpersSystem-Board Jumper Descriptions Interrupt Assignments Interrupt AssignmentsDMA Channel Assignments DMA Channel AssignmentsTechnical Specifications Technical SpecificationsSystem Clocks Ports Power Technical Specifications Basic Troubleshooting Initial User ContactExternal Visual Inspection Observing the Boot Routine Internal Visual Inspection Eliminating Resource Conflicts Running the Diagnostics Getting HelpBeep Codes and Error Messages Post Beep CodesPost Beep Codes System Error Messages System Error MessagesNvram System cannot boot Diskette in drive a From diskette in drive a Contains no operating System Removing and Replacing Parts Precautionary MeasuresComputer Cover Computer Cover RemovalFront Bezel Front-Bezel Removal Mini Tower ChassisDrives Front-Panel InsertDrive Cage Drive Cage RemovalInch Drive 25-Inch Drive RemovalUpper 3.5-Inch Drive Upper 3.5-Inch Drive RemovalLower 3.5-Inch Drive Mini Tower Computer Only Lower 3.5-Inch Drive Removal Mini Tower Computer OnlyInch Diskette Drive 5-Inch Diskette Drive RemovalPrimary Hard-Disk Drive 10. Primary Hard-Disk Drive Removal11. Secondary Hard-Disk Drive Assembly Removal Secondary Hard-Disk Drive12. Secondary Hard-Disk Drive Removal Power Supply 13. Power Supply RemovalMicroprocessor Fan Assembly 14. Microprocessor-Fan Assembly RemovalCard Guide Assembly 15. Card-Guide Assembly RemovalControl Panel Board 16. Control-Panel Board RemovalSystem Board Components 17. System Board ComponentsExpansion Cards 18. Expansion Card RemovalSIMMs 19. Simm RemovalSEC Cartridge and Heat Sink Assembly 21. SEC Cartridge and Heat Sink RemovalBattery 22. Battery RemovalSystem Board 23. System Board Removal24. System Board Mountings 25. Guide-Bracket Assembly Removal System Setup Program System Setup ScreensMain Screen Figure A-1. Main Screen Table A-1. Main Screen CategoriesTable A-1. Main Screen Categories IDE Device Configuration Submenu Figured option, unless you are using a hard-diskBoot Options Submenu Table A-3. Boot Options Submenu Categories Advanced Screen Peripheral Configuration Submenu Table A-5. Peripheral Configuration Submenu Categories Chipset Configuration Submenu Plug and Play Configuration Submenu PnP OS category appearsSecurity Screen Status category is set to LockedPower Screen Figure A-9. Power Screen Table A-9. Power Screen CategoriesCheck the monitor documentation to make Exit Screen Figure A-10. Exit Screen Table A-10. Exit Screen CategoriesPage Index Page Index

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