HP 8000 tower manual Power-On / Setup Password, Cable Lock Provision, I/O Interface Security

Page 45
Power-On / Setup Password

System Support

Power-On / Setup Password

These systems include a power-on and setup passwords, which may be enabled or disabled (cleared) through a jumper on the system board. The jumper controls a GPIO input to the 82801 ICH10 that is checked during POST. The password is stored in configuration memory (CMOS) and if enabled and then forgotten by the user will require that either the password be cleared (preferable solution and described below) or the entire CMOS be cleared (refer to section 4.4.1).

To clear the password, use the following procedure:

1.Turn off the system and disconnect the AC power cord from the outlet and/or system unit.

2.Remove the cover (hood) as described in the appropriate User Guide or Maintainance And Service Reference Guide. Insure that all system board LEDs are off (not illuminated).

3.Locate the password clear jumper (header is colored green and labeled E49 on these systems) and move the jumper from pins 1 and 2 and place on (just) pin 2 (for safekeeping).

4.Replace the cover.

5.Re-connect the AC power cord to the AC outlet and/or system unit.

6.Turn on the system. The POST routine will clear and disable the password.

7.To re-enable the password feature, repeat steps 1-6, replacing the jumper on pins 1 and 2 of header E49.

Setup Password

The Setup utility may be configured to be always changeable or changeable only by entering a password. Refer to the previous procedure (Power On / Setup Password) for clearing the Setup password.

Cable Lock Provision

These systems include a chassis cutout on the rear panel for the attachment of a cable lock mechanism.

I/O Interface Security

The SATA, serial, parallel, USB, and diskette interfaces may be disabled individually through the Setup utility to guard against unauthorized access to a system. In addition, the ability to write to or boot from a removable media drive (such as the diskette drive) may be enabled through the Setup utility. The disabling of the serial, parallel, and diskette interfaces are a function of the SIO controller. The USB ports are controlled through the 82801.

Chassis Security

Some systems feature Smart Cover (hood) Sensor and Smart Cover (hood) Lock mechanisms to inhibit unauthorized tampering of the system unit.

Smart Cover Sensor

These systems support an optional plunger switch assembly that, when the cover (hood) is removed, closes and grounds an input of the 82801 component. The battery-backed logic will record this “intrusion” event by setting a specific bit. This bit will remain set (even if the cover is replaced) until the system is powered up and the user completes the boot sequence successfully, at which time the bit will be cleared. Through Setup, the user can set this function to be used by Alert-On-LAN and or one of three levels of support for a “cover removed” condition:

 

Technical Reference Guide

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Contents HP Compaq 8000 Elite Series Business Desktop Computers Technical Reference GuideDocument Part Number DecemberTechnical Reference Guide HP Compaq 8000 Elite Series Business Desktop ComputersFirst Edition December Document Part Number Contents 1 Introduction2 System Overview 3 Processor/Memory Subsystem 4 System Support5 Input/Output Interfaces 6 Integrated Graphics Subsystem 7 Power and Signal DistributionA Error Messages and Codes Index 8 SYSTEM BIOS1.1 About this Guide Introduction1.2 Additional Information Sources 1.1.1 Online Viewing1.4 Notational Conventions 1.3 Serial Number1.4.1 Special Notices 1.4.2 ValuesAcronyms and Abbreviations 1.5 Common Acronyms and AbbreviationsAcronym or AbbreviationTable 1-1 Continued Acronyms and Abbreviations Table 1-1 ContinuedAcronym or AbbreviationAcronyms and Abbreviations Table 1-1 ContinuedAcronym or AbbreviationAcronyms and Abbreviations Table 1-1 ContinuedAcronym or AbbreviationAcronyms and Abbreviations Table 1-1 ContinuedAcronym or AbbreviationAcronyms and Abbreviations 1-10 2.1 Introduction System Overview2.2 Features USDT Feature Differences by Form FactorArchitectural Differences by Form Factor 2.3 System ArchitectureTechnical Reference Guide 2.3.1 Intel Processor Support 2.3.2 ChipsetChipset Components and Functionality 2.3.3 Support Components 2.3.4 System MemorySupport Component Functions 2.3.6 Serial Interface 2.3.5 Mass Storage2.3.7 Universal Serial Bus Interface 2.3.8 Network Interface Controller2.3.9 Graphics Subsystem 2.3.10 Audio SubsystemIntegrated Graphics Subsystem Statistics 2.4 Specifications 2.3.11 HP ProtectTools Embedded SecurityEnvironmental Specifications Factory Configuration Physical Specifications Power Supply Electrical Specifications2-12 3.1 Introduction Processor/Memory Subsystem3.2.1 Intel Processor Overview 3.2 Intel ProcessorsSupported Processors partial listing 3.2.2 Processor Changing/Upgrading3.3 Memory Subsystem 3.3.1 Memory Upgrading 3.3.2 Memory Mapping and Pre-allocationMemory Socket Loading Figure 3-2. System Memory Map for maximum of 8 gigabytes Expansion AreaBase Memory 4.1 Introduction System Support4.2 PCI Bus Overview 4.2.1 PCI 2.3 Bus OperationWired to PCI Component Configuration AccessSystem Support PCI BusSoftware/Driver Layer 4.2.2 PCI Express Bus OperationTransaction Protocol Layer PCI Bus Mastering Devices4.2.3 Option ROM Mapping 4.2.5 PCI Power Management Support4.2.4 PCI Interrupts Link LayerPCI 2.3 Connector 4.2.6 PCI ConnectorsPCI 2.3 Bus Connector Pinout Figure 4-2. 32-bit, 5.0-volt PCI 2.3 Bus ConnectorPCIe Connectors PCIe Bus Connector PinoutFigure 4-3. PCIe Bus Connectors 4.3.1 Interrupts 4.3 System Resources8259 Mode APIC ModePCI Interrupt Distribution 4.3.2 Direct Memory Access4.4.1 Clearing CMOS 4.4 Real-Time Clock and Configuration Memory4.4.2 Standard CMOS Locations 4.5 System Management4.5.1 Security Functions Configuration Memory CMOS MapSetup Password Power-On / Setup PasswordCable Lock Provision I/O Interface Security4.5.2 Power Management Smart Cover Lock OptionalACPI Wake-Up Events 4.5.3 System Status 4.5.4 Thermal Sensing and CoolingSystem Operational Status LED Indications 4.6.1 System I/O Map 4.6 Register Map and Miscellaneous FunctionsSystem I/O Map I/O PortFunction 4.6.2 GPIO Functions ICH10 FunctionsSIO Controller Functions 5.1 Introduction Input/Output Interfaces5.2.1 SATA interface 5.2 SATA/eSATA Interfaces5.2.2 eSATA interface DB-9 Serial Connector Pinout 5.3 Serial Interface5.4.1 Standard Parallel Port Mode 5.4 Parallel Interface Support5.4.2 Enhanced Parallel Port Mode 5.4.3 Extended Capabilities Port Mode5.4.4 Parallel Interface Connector DB-25 Parallel Connector Pinoute w q - 9 8 7 6 5 4 3 2 1 g f d s a p o i u y t r 5.5.1 Keyboard Interface Operation 5.5 Keyboard/Pointing Device Interface5.5.3 Keyboard/Pointing Device Interface Connector 5.5.2 Pointing Device Interface OperationKeyboard/Pointing Device Connector Pinout 5.6 Universal Serial Bus Interface 5.6.1 USB ConnectorUSB Connector Pinout 5.6.2 USB Cable DataUSB Cable Length Data USB Color CodeFigure 5-8. Audio Subsystem Functional Block Diagram 5.7 Audio Subsystem5.7.1 HD Audio Controller 5.7.2 HD Audio Link Bus5.7.3 Audio Multistreaming 5.7.4 Audio Specifications The specifications for the HD Audio subsystem are listed in TableHD Audio Subsystem Specifications 5.8 Network Interface Controller 5.8.3 Power Management Support 5.8.1 Wake-On-LAN Support5.8.2 Alert Standard Format Support 5.8.4 NIC Connector 5.8.5 NIC SpecificationsTable 5-11. NIC Specifications 6.1 Introduction Integrated Graphics Subsystem6.2 Functional Description SDRAM Installed GMA 4500 Memory AllocationMaximum Memory Allocation 6.3 Display Modes 6.4 Upgrading 6.5.1 Analog Monitor Connector 6.5 Monitor ConnectorsFigure 6-3. DisplayPort Connector, as viewed from rear of chassis 6.5.2 DisplayPort ConnectorTechnical Reference Guide Power and Signal Distribution 7.2 USDT Power Distribution7.1 Introduction Table 7-1 lists the specifications of the external supply 7.3 SFF/CMT Power DistributionUSDT 135-Watt Power Supply Unit Specifications Figure 7-2. SFF/CMT Power Distribution and Cabling, Block DiagramCMT 320-Watt Power Supply Unit Specifications SFF 240-Watt Power Supply Unit Specifications7.4.1 Power Button 7.4 Power ControlPower LED Power LED IndicationsPower failure power supply is overloaded. Check storage Pre-video memory error. Incompatible or incorrectly seated7.4.2 Wake Up Events 7.5 Power ManagementPower Management Event Wake-On-LANPower System Power StatesPower StateSystem Board Connector, Indicator, and Switch Designations 7.6 Signal DistributionDesignator Component functionFigure 7-5 shows pinouts of headers used on the sytem boards Table 7-7. ContinuedFigure 7-3. System Board Header Pinouts 7-10 8.1 Introduction System BIOS8.2 ROM Flashing 8.2.1 Upgrading8.2.2 Changeable Splash Screen 8.3.1 Boot Device Order 8.3 Boot Functions8.3.2 Network Boot F12 Support 8.3.3 Memory Detection and Configuration8.3.4 Boot Error Codes 8.4 Client Management Functions 8.4.1 System ID and ROM Type 8.4.2 Temperature StatusSystem ID Numbers SMBIOS Functions 8.5 SMBIOS8.7 Management Engine Functions 8.6 USB Legacy SupportError Messages and Codes A.2 Beep/Power LED CodesA.1 Introduction Error Messages and Codes A.3 Power-On Self Test POST MessagesError Message Power-On Self Test POST Messages1794--Inaccessible device attached to SATA 1796-SATA Cabling Error1801-Microcode Patch Error Error Messages and Codes A.4 System Error MessagesA.5 Memory Error Messages Memory Error MessagesTable A-4 Memory Error Messages A.6 Keyboard Error MessagesTable A-4. Continued MessageA.8 Video Graphics Error Messages A.7 Printer Error MessagesInt. test, LpBk. test., and data register failed Int. test, LpBk. test., and cntrl. register failedA.9 Diskette Drive Error Messages Table A-9 Serial Interface Error Messages A.10 Serial Interface Error MessagesTable A-10 Modem Communications Error Messages A.11 Modem Communications Error MessagesA.12 System Status Error Messages Cntlr. failed to deallocate bad sectors A.13 Hard Drive Error Messagesxx = 00, Hard drive ID test xx = 01, Hard drive format test A.14 Hard Drive Error Messages A.16 Audio Error Messages A.15 Video Graphics Error MessagesEGA Mono. graphics mode test failed Lightpen graphics test failed, no respA.18 Network Interface Error Messages A.17 DVD/CD-ROM Error MessagesA.19 SCSI Interface Error Messages 65xx-xx, 66xx-xx MessageProbable Cause A.20 Pointing Device Interface Error Messages 8601-xx A-20 Numerics Index
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