HP dx7300 7.4Signal Distribution

Power and Signal Distribution

7.4Signal Distribution

Figures 7-5 through 7-7 show general signal distribution between the main subassemblies of the system units.

Chassis Fan

Speaker

Power On

Power LED

HD LED

+12 VccP

Power

+3.3, +5, +5 Aux, +12 VDC

Supply

PS On, POK

Assembly

SATA I/F

System

P60

SATA

Board

Hard Drive

404233

IDE I/F.,

Diskette I/F.,

Slimline Optical Drive

SATA-

CD Audio

P21

PATA

Interface

Kybd data

Keyboard

J66

Mouse data

Mouse

J67

Mic In, HP Out

Audio

P23

Front

USB 8,9 Tx/Rx

Panel

I/O Module

P24

NOTES:

See Figure 7-10 for header pinout.

Figure 7-5. USDT Form Factor Signal Distribution Diagram

Technical Reference Guide

www.hp.com

7-11

Contents

Technical Reference Guide Technical Reference Guide Contents 1 Introduction 2 System Overview 3 Processor/Memory Subsystem 4 System Support 5 Input/Output Interfaces 6 Integrated Graphics Subsystem 7 Power and Signal Distribution 8 BIOS ROM AError Messages and Codes BASCII Character Set CKeyboard Index Introduction 1.1About this Guide 1.1.1 Online Viewing 1.1.2 Hardcopy 1.2Additional Information Sources Page 1.4Serial Number 1.5Notational Conventions 1.5.1 Values 1.5.2 Ranges 1.5.3 Register Notation and Usage 1.6Common Acronyms and Abbreviations Page Page Page Page Page Page System Overview 2.1Introduction 2.2 Features Difference Matrix by Form Factor 2.3Mechanical Design 2.3.1 Cabinet Layouts Front Views Page Page Page Rear Chassis Connections 2.3.2 Chassis Layouts UIltra Slim Desktop Chassis Small Form Factor / Slim Tower Chassis Microtower Chassis Convertible Minitower 2.3.3 Board Layouts Page Page 2.4 System Architecture Page 2.4.1 Intel Processor Support 2.4.2Chipset 2.4.3 Support Components 2.4.4 System Memory 2.4.5 Mass Storage 2.4.6 Serial and Parallel Interfaces 2.4.7 Universal Serial Bus Interface 2.4.8 Network Interface Controller 2.4.9 Graphics Subsystem 2.4.10 Audio Subsystem 2.5 Specifications Physical Specifications Diskette Drive Specifications Optical Drive Specifications Hard Drive Specifications Processor/Memory Subsystem 3.1Introduction 3.2Intel Pentium Processors 3.2.1 Intel Processor Overview Page 3.2.2 Processor Upgrading 3.3Memory Subsystem memory incompatible These systems are shipped with non-ECC DIMMs only DIMM Socket Loading SPD Address Map (SDRAM DIMM) Page System Support 4.1Introduction 4.2PCI Bus Overview 4.2.1 PCI 2.3 Bus Operation I/O and Memory Cycles Configuration Cycles Page PCI 2.3 Bus Master Arbitration 4.2.2 PCI Express Bus Operation Software/Driver Layer Transaction Protocol Layer Link Layer Physical Layer 4.2.3 Option ROM Mapping 4.2.4 PCI Interrupts 4.2.5 PCI Power Management Support 4.2.6 PCI Connectors PCI 2.3 Connector PCI Express Connectors 4.3 System Resources 4.3.1 Interrupts Maskable Interrupts 8259 Mode Maskable Interrupt Priorities and Assignments APIC Mode Non-MaskableInterrupts NMI Status Register 61h SMI- Generation 4.3.2 Direct Memory Access DMA Page Registers DMA Controller Registers 4.4 Real-TimeClock and Configuration Memory 4.4.1 Clearing CMOS 4.4.2 Standard CMOS Locations 4.5 System Management 4.5.1 Security Functions Power-On /Setup Password Setup Password Cable Lock Provision I/O Interface Security Chassis Security 4.5.2 Power Management 4.5.3 System Status 4.5.4Thermal Sensing and Cooling 4.6 Register Map and Miscellaneous Functions 4.6.1 System I/O Map 4.6.2 SCH5317 I/O Controller Functions Page Input/Output Interfaces 5.1Introduction 5.2SATA Interfaces 5.2.1 SATA Programming SATA Configuration Registers SATA Bus Master Control Registers 5.2.2 SATA Connector 5.2.3 RAID Functionality 5.3Diskette Drive Interface 5.3.1 Diskette Drive Programming Diskette Drive Interface Configuration Page Diskette Drive Interface Control Table 5-5. (Continued) 5.3.2 Diskette Drive Connector 5.4Serial Interface 5.4.1 Serial Connector 5.4.2 Serial Interface Programming Serial Interface Configuration Serial Interface Control 5.5Parallel Interface 5.5.1 Standard Parallel Port Mode 5.5.2 Enhanced Parallel Port Mode 5.5.3 Extended Capabilities Port Mode 5.5.4 Parallel Interface Programming Parallel Interface Configuration Parallel Interface Control 5.5.5 Parallel Interface Connector 5.6Keyboard/Pointing Device Interface 5.6.1 Keyboard Interface Operation 8042-To-KeyboardCommands 5.6.2 Pointing Device Interface Operation 5.6.3 Keyboard/Pointing Device Interface Programming 8042 Configuration 8042 Control I/O Port 64h CPU Commands to the Table 5-15. (Continued) 5.6.4 Keyboard/Pointing Device Interface Connector 5.7Universal Serial Bus Interface 5.7.1 USB Data Formats 5.7.2 USB Programming USB Configuration USB Control 5.7.3 USB Connector 5.7.4 USB Cable Data 5.8Audio Subsystem 5.8.1 HD Audio Controller 5.8.2HD Audio Interface 5.8.3 HD Audio Codec 5.8.4 Audio Programming Audio Configuration Audio Control 5.8.5 Audio Specifications 5.9Network Interface Controller 5.9.1 Wake-On-LANSupport 5.9.2 Alert Standard Format Support 5.9.3 Power Management Support 5.9.4 NIC Programming 5.9.5 NIC Connector 5.9.6 NIC Specifications Integrated Graphics Subsystem 6.1Introduction 6.2 Functional Description Page 6.3Display Modes 6.4 Upgrading Graphics 6.5 VGA Monitor Connector Power and Signal Distribution 7.1Introduction 7.2Power Supply Assembly/Control 7.2.1 Power Supply Assembly 365-Watt(M/T & CMT) Power Supply Assembly Specifications 7.2.2 Power Control Power Button Power LED Indications Wake Up Events Wake-On-LAN Modem Ring Power Management Event 7.2.3 Power Management 7.3Power Distribution Page Page 7.4Signal Distribution Page Page Page BIOS ROM 8.1Introduction 8.2 ROM Flashing 8.2.1 Upgrading 8.2.2Changeable Splash Screen 8.3 Boot Functions 8.3.1 Boot Device Order 8.3.2 Network Boot (F12) Support 8.3.3 Memory Detection and Configuration 8.3.4 Boot Error Codes 8.4 Setup Utility Diskette Type Drive Emulation Drive Type Emulation Options Default Values IDE/SATA Transfer Mode Translation Parameters (ATA disks only) Removable Media Boot Legacy Diskette Write BIOS DMA Data Transfers IDE Controller Primary SATA Controller Secondary SATA Controller Shortcut to Temporarily Override Boot Order one time boot (CTRL+ALT+DEL) Page F9=Boot Menu Storage Boot Order F10=Setup F12 Page Num Lock 8.5 Client Management Functions 8.5.1 System ID and ROM Type 8.5.2 Temperature Status 8.5.3 Drive Fault Prediction 8.6 SMBIOS 8.7 USB Legacy Support Page Error Messages and Codes A.1 Introduction A.2 Beep/Power LED Codes A.3 Power-OnSelf Test (POST) Messages Page Page A.4 System Error Messages (1xx-xx) A.5 Memory Error Messages (2xx-xx) A.6 Keyboard Error Messages (30x-xx) A.7 Printer Error Messages (4xx-xx) A.8 Video (Graphics) Error Messages (5xx-xx) A.9 Diskette Drive Error Messages (6xx-xx) A.10 Serial Interface Error Messages (11xx-xx) A.11 Modem Communications Error Messages (12xx-xx) A.12 System Status Error Messages (16xx-xx) A.13 Hard Drive Error Messages (17xx-xx) Page A.14 Hard Drive Error Messages (19xx-xx) A.15 Video (Graphics) Error Messages (24xx-xx) A.16 Audio Error Messages (3206-xx) A.17 DVD/CD-ROMError Messages (33xx-xx) A.18 Network Interface Error Messages (60xx-xx) A.19 SCSI Interface Error Messages (65xx-xx, 66xx-xx, 67xx-xx) A.20 Pointing Device Interface Error Messages (8601-xx) Page ASCII Character Set B.1 Introduction Page Page Page Keyboard C.1 Introduction C.2 Keystroke Processing Page C.2.1 PS/2-TypeKeyboard Transmissions C.2.2 USB-TypeKeyboard Transmissions C.2.3 Keyboard Layouts C.2.3.1 Standard Enhanced Keyboards C.2.3.2 Windows Enhanced Keyboards C.2.3.3 Easy Access Keyboard C.2.4 Keys C.2.4.1 Special Single-KeystrokeFunctions C.2.4.2 Multi-KeystrokeFunctions C.2.4.3 Windows Keystrokes C.2.4.4 Easy Access Keystrokes C.2.5 Keyboard Commands C.2.6 Scan Codes Table C-2. (Continued) Page Page Page Page C.3 Connectors Page Numerics Index