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HP Compaq dc7800 User Manual

HP Compaq dc7800
276 pages
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Service Reference Guide
HP Compaq dc7800 Business PC

Table of Contents

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HP Compaq dc7800 Specifications

General IconGeneral
Tcase73.3 °C
Bus typeFSB
SteppingM0
Processor cache2 MB
Processor cores2
Processor modelE4600
System bus rate- GT/s
Processor familyIntel® Core™2 Duo
Processor seriesIntel Core 2 Duo E4000 Series
Processor socketLGA 775 (Socket T)
Processor codenameConroe
Processing Die size111 mm²
Processor frequency2.4 GHz
Processor cache typeL2
Processor lithography65 nm
Processor manufacturerIntel
Processor front side bus800 MHz
Processor operating modes64-bit
ECC supported by processorNo
Thermal Design Power (TDP)65 W
CPU multiplier (bus/core ratio)12
Number of Processing Die Transistors167 M
Internal memory1 GB
Internal memory typeDDR2-SDRAM
Maximum internal memory8 GB
Memory layout (slots x size)2 x 0.5 GB
HDD speed7200 RPM
HDD interfaceSATA
Optical drive typeDVD Super Multi
Total storage capacity160 GB
Audio input1
LightScribeYes
Networking featuresIntel 82566DM Gigabit Network Connection
Graphics card RAMDAC400 MHz
Storage drive controllerSATA 3, 0 Gb/s NCQ SMART VI
Discrete graphics card modelIntel® GMA 3100
Maximum graphics card memory0.256 GB
Operating system installedWindows Vista Business
USB 2.0 ports quantity8
Chassis typeMini Tower
Country of originChina
Cable lock slot typeKensington
Operating altitude0 - 3048 m
Non-operating altitude0 - 9144 m
Storage temperature (T-T)-30 - 60 °C
Operating temperature (T-T)10 - 35 °C
Storage relative humidity (H-H)5 - 95 %
Operating relative humidity (H-H)10 - 90 %
Power supply365 W
Product typePC
Processor codeSLA94
Processor ARK ID32242
Processor package size37.5 x 37.5 mm
Weight and Dimensions IconWeight and Dimensions
Depth452 mm
Width177 mm
Height447 mm
Weight11800 g

Summary

1 Installing and Customizing the Software

Installing the Operating System

Describes the automatic operating system installation process.

HP Backup and Recovery Manager

Overview of the HP Backup and Recovery Manager application.

2 Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Explains the functions and capabilities of the Computer Setup utility.

Using Computer Setup (F10) Utilities

Provides a step-by-step guide to access and navigate the Computer Setup utility.

Computer Setup—Security

Details security settings such as setup passwords, power-on passwords, and device security.

3 Computer Diagnostic Features

HP Insight Diagnostics

Introduces the utility for hardware diagnostics and configuration information.

Accessing HP Insight Diagnostics

Steps to access the HP Insight Diagnostics tool via a Recovery Disc Set.

4 Desktop Management

Software Updating and Management

Overview of HP tools for managing and updating software on desktops and notebooks.

HP ProtectTools Security Manager

Provides security features to protect against unauthorized access to data and systems.

Password Security

Establishing a Setup Password Using Computer Setup

Steps to set up an administrator password to prevent reconfiguration.

Establishing a Power-On Password Using Computer Setup

Steps to set a password that prevents computer access when powered on.

Changing a Power-On or Setup Password

Steps to change existing power-on or setup passwords.

DriveLock

Using DriveLock

Explains how to set master or user passwords and enable DriveLock.

Smart Cover Sensor

Smart Cover Lock

Using the Smart Cover FailSafe Key

Explains when and how to use the FailSafe Key to open the cover.

5 Serial and Parallel ATA Drive Guidelines and Features

6 Identifying the Chassis, Routine Care, and Disassembly Preparation

Electrostatic Discharge Information

Information on preventing damage from static electricity (ESD).

Routine Care

7 Removal and Replacement Procedures Convertible Minitower (CMT) Chassis

Computer Access Panel

Front Bezel

Memory

Installing Additional Memory

Populating DIMM Sockets

Diagram and explanation of populating DIMM sockets for optimal performance.

Installing DIMMs

Step-by-step instructions for installing DIMMs into the memory sockets.

Expansion Cards

Drives

Drives

Guidelines for installing additional drives, including SATA and diskette connections.

System Board Drive Connections

Illustration and table identifying system board drive connectors (SATA, Media Card Reader, Diskette).

Drive Positions

Installing a 3.5-inch Hard Drive into an Internal Drive Bay

Removing and Replacing a Removable 3.5-inch SATA Hard Drive

Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay

Front I/O Device and Power Switch

Heatsink

Processor

Power Supply

System Board

Battery

Type 3 Battery Holder

8 Removal and Replacement Procedures Small Form Factor (SFF) Chassis

HP Business PC Security Lock

Installing Additional Memory

Populating DIMM Sockets

Cable Management

Cable Connections

Hard Drive

Hard Drive

Information on supported hard drives and the 2.5-inch drive carrier.

Removing an External 3.5-inch Drive

Steps to remove an external 3.5-inch drive, requiring prior optical drive removal.

Installing a Drive into the 3.5-inch External Drive Bay

Primary 3.5-inch Internal SATA Hard Drive

Removable 3.5-inch SATA Hard Drive

Power Switch Assembly

Front I/O Device

9 Removal and Replacement Procedures Ultra-Slim Desktop (USDT) Chassis

Preparation for Disassembly

Initial safety procedures and steps before disassembling the USDT chassis.

Populating SODIMM Sockets

Installing SODIMMs

Step-by-step instructions for installing SODIMM memory modules.

Optical Drive

Removing the Optical Drive

Steps for removing an optical drive from the chassis.

Preparing a New Optical Drive

Installing a New Optical Drive

Hard Drive Cage

ATA/ATAPI (IDE) Standard Drive Cable

24-Pin MicroFit Power (CMT, SFF)

SATA Data and Power

PCI Express

PCI Express Mini Card

B Power Cord Set Requirements

Country-Specific Requirements

POST Numeric Codes and Text Messages

1720-SMART Hard Drive Detect Detects Imminent Failure

2203-Setup error during MEBx execution

Interpreting POST Diagnostic Front Panel LEDs and Audible Codes

Red Power LED flashes two times, once every second, followed by a two second pause...

Troubleshooting for processor thermal protection issues indicated by LED flashes and beeps.

Red Power LED flashes three times, once every second, followed by a two second pause...

Red Power LED flashes five times, once every second, followed by a two second pause...

Troubleshooting for pre-video memory errors indicated by LED flashes and beeps.

Red Power LED flashes seven times, once every second, followed by a two second pause...

Troubleshooting for system board failures indicated by LED flashes and beeps.

Red Power LED flashes eight times, once every second, followed by a two second pause...

Red Power LED flashes nine times, once every second, followed by a two second pause...

Troubleshooting for system power-on issues indicated by LED flashes and beeps.

Red Power LED flashes ten times, once every second, followed by a two second pause...

Troubleshooting for bad option cards indicated by LED flashes and beeps.

Red Power LED flashes eleven times, once every second, followed by a two second pause...

Troubleshooting for processor feature incompatibility indicated by LED flashes and beeps.

System does not power on and LEDs are not flashing.

Troubleshooting for systems that do not power on or display flashing LEDs.

D Troubleshooting Without Diagnostics

Solving General Problems

There is no sound or sound volume is too low.

Computer powered off automatically and the Power LED flashes Red two times...

System does not power on and the LEDs on the front of the computer are not flashing.

Troubleshooting systems that do not power on or display flashing LEDs.

Solving Power Problems

Power supply shuts down intermittently.

Solutions for intermittent power supply shutdowns.

Computer powered off automatically and the Power LED flashes Red two times...

Troubleshooting processor thermal protection and fan issues.

Solving Diskette Problems

Solving Hard Drive Problems

Hard drive error occurs.

Solutions for hard disk errors like bad sectors or drive failure.

Computer will not boot from hard drive.

Solutions for issues preventing the computer from booting from the hard drive.

Solving Media Card Reader Problems

Solving Display Problems

Blank screen (no video).

Solutions for blank screen issues, including monitor and connection checks.

Solving Audio Problems

Solving Printer Problems

Printer will not print.

Solutions for printer issues where the printer will not print.

Printer prints garbled information.

Solving Keyboard and Mouse Problems

Keyboard commands and typing are not recognized by the computer.

Solutions for when keyboard input is not recognized.

Mouse does not respond to movement or is too slow.

Solving Hardware Installation Problems

A new device is not recognized as part of the system.

Solutions for when a new device is not recognized by the system.

Computer will not start.

Solutions for when the computer will not start, potentially due to memory issues.

Power LED flashes Red five times, once every second, followed by a two second pause, and the computer beeps five times.

Solving Network Problems

Diagnostics reports a failure.

Network controller stops working without apparent cause.

Solving Memory Problems

A memory module is not installed in the XMM1 (or DIMM1) socket.

Ensures a memory module is installed in the black XMM1 socket.

Solving Processor Problems

Poor performance is experienced.

Solutions for poor processor performance, such as overheating or fan issues.

Power LED flashes Red three times, once every second, followed by a two second pause.

Troubleshooting processor seating or installation issues.

Solving CD-ROM and DVD Problems

System will not boot from CD-ROM or DVD drive.

Solutions for preventing the computer from booting from CD-ROM or DVD drives.

Solving Drive Key Problems

System will not boot from USB Drive Key.

Solutions for preventing the computer from booting from a USB Drive Key.

Solving Front Panel Component Problems

Solving Internet Access Problems

Unable to connect to the Internet.

Solutions for inability to connect to the Internet.

Solving Software Problems

Computer will not continue and no HP logo screen has appeared.

Troubleshooting steps when the computer does not proceed past the POST stage.

Computer will not continue after HP logo screen has appeared.

Solutions for issues occurring after the HP logo screen appears.

Contacting Customer Support

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