HP 8000 tower manual System Management, Standard CMOS Locations, Security Functions

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4.4.2 Standard CMOS Locations

System Support

4.4.2 Standard CMOS Locations

Table 4-6 describes standard configuration memory locations 0Ah-3Fh. These locations are accessible through using OUT/IN assembly language instructions using port 70/71h or BIOS function INT15, AX=E823h.

Table 4-6.

Configuration Memory (CMOS) Map

Location

Function

Location

Function

00-0Dh

Real-time clock

24h

System board ID

0Eh

Diagnostic status

25h

System architecture data

0Fh

System reset code

26h

Auxiliary peripheral configuration

10h

Diskette drive type

27h

Speed control external drive

11h

Reserved

28h

Expanded/base mem. size, IRQ12

12h

Hard drive type

29h

Miscellaneous configuration

13h

Security functions

2Ah

Hard drive timeout

14h

Equipment installed

2Bh

System inactivity timeout

15h

Base memory size, low byte/KB

2Ch

Monitor timeout, Num Lock Cntrl

16h

Base memory size, high byte/KB

2Dh

Additional flags

17h

Extended memory, low byte/KB

2Eh-2Fh

Checksum of locations 10h-2Dh

18h

Extended memory, high byte/KB

30h-31h

Total extended memory tested

19h

Hard drive 1, primary controller

32h

Century

1Ah

Hard drive 2, primary controller

33h

Miscellaneous flags set by BIOS

1Bh

Hard drive 1, secondary controller

34h

International language

1Ch

Hard drive 2, secondary controller

35h

APM status flags

1Dh

Enhanced hard drive support

36h

ECC POST test single bit

1Eh

Reserved

37h-3Fh

Power-on password

1Fh

Power management functions

40-FFh

Feature Control/Status

NOTES:

Assume unmarked gaps are reserved.

Higher locations (>3Fh) contain information that should be accessed using the INT15, AX=E845h BIOS function (refer to Chapter 8 for BIOS function descriptions).

4.5 System Management

This section describes functions having to do with security, power management, temperature, and overall status. These functions are handled by hardware and firmware (BIOS) and generally configured through the Setup utility.

4.5.1 Security Functions

These systems include various features that provide different levels of security. Note that this subsection describes only the hardware functionality (including that supported by Setup) and does not describe security features that may be provided by the operating system and application software.

 

4-10

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Technical Reference Guide

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Contents Technical Reference Guide HP Compaq 8000 Elite Series Business Desktop ComputersDocument Part Number DecemberFirst Edition December Document Part Number Technical Reference GuideHP Compaq 8000 Elite Series Business Desktop Computers 2 System Overview Contents1 Introduction 5 Input/Output Interfaces 3 Processor/Memory Subsystem4 System Support 7 Power and Signal Distribution 6 Integrated Graphics Subsystem8 SYSTEM BIOS A Error Messages and Codes IndexIntroduction 1.1 About this Guide1.2 Additional Information Sources 1.1.1 Online Viewing1.3 Serial Number 1.4 Notational Conventions1.4.1 Special Notices 1.4.2 Values1.5 Common Acronyms and Abbreviations Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued Table 1-1 Continued Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued 1-10 System Overview 2.1 Introduction2.2 Features Feature Differences by Form Factor USDT2.3 System Architecture Architectural Differences by Form FactorSystem Overview Chipset Components and Functionality 2.3.1 Intel Processor Support2.3.2 Chipset Support Component Functions 2.3.3 Support Components2.3.4 System Memory 2.3.5 Mass Storage 2.3.6 Serial Interface2.3.7 Universal Serial Bus Interface 2.3.8 Network Interface ControllerIntegrated Graphics Subsystem Statistics 2.3.9 Graphics Subsystem2.3.10 Audio Subsystem Environmental Specifications Factory Configuration 2.4 Specifications2.3.11 HP ProtectTools Embedded Security Power Supply Electrical Specifications Physical Specifications2-12 Processor/Memory Subsystem 3.1 Introduction3.2 Intel Processors 3.2.1 Intel Processor Overview3.2.2 Processor Changing/Upgrading Supported Processors partial listing3.3 Memory Subsystem Memory Socket Loading 3.3.1 Memory Upgrading3.3.2 Memory Mapping and Pre-allocation Base Memory Figure 3-2. System Memory Map for maximum of 8 gigabytesExpansion Area System Support 4.1 Introduction4.2 PCI Bus Overview 4.2.1 PCI 2.3 Bus OperationPCI Component Configuration Access Wired toSystem Support PCI Bus4.2.2 PCI Express Bus Operation Software/Driver LayerTransaction Protocol Layer PCI Bus Mastering Devices4.2.5 PCI Power Management Support 4.2.3 Option ROM Mapping4.2.4 PCI Interrupts Link Layer4.2.6 PCI Connectors PCI 2.3 ConnectorPCI 2.3 Bus Connector Pinout Figure 4-2. 32-bit, 5.0-volt PCI 2.3 Bus ConnectorFigure 4-3. PCIe Bus Connectors PCIe ConnectorsPCIe Bus Connector Pinout 4.3 System Resources 4.3.1 Interrupts8259 Mode APIC Mode4.3.2 Direct Memory Access PCI Interrupt Distribution4.4 Real-Time Clock and Configuration Memory 4.4.1 Clearing CMOS4.5 System Management 4.4.2 Standard CMOS Locations4.5.1 Security Functions Configuration Memory CMOS MapPower-On / Setup Password Setup PasswordCable Lock Provision I/O Interface SecurityACPI Wake-Up Events 4.5.2 Power ManagementSmart Cover Lock Optional System Operational Status LED Indications 4.5.3 System Status4.5.4 Thermal Sensing and Cooling 4.6 Register Map and Miscellaneous Functions 4.6.1 System I/O MapFunction System I/O MapI/O Port SIO Controller Functions 4.6.2 GPIO FunctionsICH10 Functions Input/Output Interfaces 5.1 Introduction5.2 SATA/eSATA Interfaces 5.2.1 SATA interface5.2.2 eSATA interface 5.3 Serial Interface DB-9 Serial Connector Pinout5.4 Parallel Interface Support 5.4.1 Standard Parallel Port Mode5.4.2 Enhanced Parallel Port Mode 5.4.3 Extended Capabilities Port Modee w q - 9 8 7 6 5 4 3 2 1 g f d s a p o i u y t r 5.4.4 Parallel Interface ConnectorDB-25 Parallel Connector Pinout 5.5 Keyboard/Pointing Device Interface 5.5.1 Keyboard Interface OperationKeyboard/Pointing Device Connector Pinout 5.5.3 Keyboard/Pointing Device Interface Connector5.5.2 Pointing Device Interface Operation 5.6.1 USB Connector 5.6 Universal Serial Bus Interface5.6.2 USB Cable Data USB Connector PinoutUSB Cable Length Data USB Color Code5.7 Audio Subsystem Figure 5-8. Audio Subsystem Functional Block Diagram5.7.3 Audio Multistreaming 5.7.1 HD Audio Controller5.7.2 HD Audio Link Bus HD Audio Subsystem Specifications 5.7.4 Audio SpecificationsThe specifications for the HD Audio subsystem are listed in Table 5.8 Network Interface Controller 5.8.2 Alert Standard Format Support 5.8.3 Power Management Support5.8.1 Wake-On-LAN Support Table 5-11. NIC Specifications 5.8.4 NIC Connector5.8.5 NIC Specifications Integrated Graphics Subsystem 6.1 Introduction6.2 Functional Description Maximum Memory Allocation SDRAM InstalledGMA 4500 Memory Allocation 6.3 Display Modes 6.4 Upgrading 6.5 Monitor Connectors 6.5.1 Analog Monitor Connector6.5.2 DisplayPort Connector Figure 6-3. DisplayPort Connector, as viewed from rear of chassisIntegrated Graphics Subsystem 7.1 Introduction Power and Signal Distribution7.2 USDT Power Distribution 7.3 SFF/CMT Power Distribution Table 7-1 lists the specifications of the external supplyUSDT 135-Watt Power Supply Unit Specifications Figure 7-2. SFF/CMT Power Distribution and Cabling, Block DiagramSFF 240-Watt Power Supply Unit Specifications CMT 320-Watt Power Supply Unit Specifications7.4 Power Control 7.4.1 Power ButtonPower LED Indications Power LEDPower failure power supply is overloaded. Check storage Pre-video memory error. Incompatible or incorrectly seated7.5 Power Management 7.4.2 Wake Up EventsPower Management Event Wake-On-LANSystem Power States PowerPower State7.6 Signal Distribution System Board Connector, Indicator, and Switch DesignationsDesignator Component functionFigure 7-3. System Board Header Pinouts Figure 7-5 shows pinouts of headers used on the sytem boardsTable 7-7. Continued 7-10 System BIOS 8.1 Introduction8.2.2 Changeable Splash Screen 8.2 ROM Flashing8.2.1 Upgrading 8.3 Boot Functions 8.3.1 Boot Device Order8.3.2 Network Boot F12 Support 8.3.3 Memory Detection and Configuration8.3.4 Boot Error Codes 8.4 Client Management Functions System ID Numbers 8.4.1 System ID and ROM Type8.4.2 Temperature Status 8.5 SMBIOS SMBIOS Functions8.6 USB Legacy Support 8.7 Management Engine FunctionsA.1 Introduction Error Messages and CodesA.2 Beep/Power LED Codes A.3 Power-On Self Test POST Messages Error Messages and CodesPower-On Self Test POST Messages Error Message1794--Inaccessible device attached to SATA 1796-SATA Cabling Error1801-Microcode Patch Error A.4 System Error Messages Error Messages and CodesTable A-4 A.5 Memory Error MessagesMemory Error Messages A.6 Keyboard Error Messages Memory Error MessagesTable A-4. Continued MessageA.7 Printer Error Messages A.8 Video Graphics Error MessagesInt. test, LpBk. test., and data register failed Int. test, LpBk. test., and cntrl. register failedA.9 Diskette Drive Error Messages A.10 Serial Interface Error Messages Table A-9 Serial Interface Error MessagesA.11 Modem Communications Error Messages Table A-10 Modem Communications Error MessagesA.12 System Status Error Messages A.13 Hard Drive Error Messages Cntlr. failed to deallocate bad sectorsxx = 00, Hard drive ID test xx = 01, Hard drive format test A.14 Hard Drive Error Messages A.15 Video Graphics Error Messages A.16 Audio Error MessagesEGA Mono. graphics mode test failed Lightpen graphics test failed, no respA.17 DVD/CD-ROM Error Messages A.18 Network Interface Error MessagesProbable Cause A.19 SCSI Interface Error Messages 65xx-xx, 66xx-xxMessage A.20 Pointing Device Interface Error Messages 8601-xx A-20 Index Numerics
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