HP Compaq Elite 8300 Touch All-in-One Business User Manual

Solving Power Problems
Common causes and solutions for power problems are listed in the following table.
Table 8-2 Solving Power Problems
Power supply shuts down intermittently.
Cause Solution
If equipped with a voltage selector, voltage selector switch on
rear of computer chassis (some models) not switched to
correct line voltage (115V or 230V).
Select the proper AC voltage using the selector switch.
Power supply will not turn on because of internal power
supply fault.
Replace the power supply.
Computer powered off automatically and the Power LED flashes Red two times, once every second,
followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but
LEDs continue flashing.)
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
1. Ensure that the computer air vents are not blocked and
the processor cooling fan is running.
2. Open the access panel, press the power button, and see
if the processor fan (or other system fan) spins. If the fan
does not spin, make sure the fan cable is plugged onto
the system board header.
3. If fan a plugged in and not spinning, replace it.
Solving Power Problems
129

HP Compaq Elite 8300 Touch All-in-One Business Specifications

General

Touchscreen	Yes
Brightness	250 cd/m²
Response Time	5 ms
Aspect Ratio	16:9
Display Size	23 inches
Resolution	1920 x 1080
Contrast Ratio	1000:1
Video Input	VGA, DisplayPort
Connectivity	USB 2.0, USB 3.0

Summary

Activating and Customizing the Software

Activating and Customizing Software in Windows 7

Guides on activating and customizing software within the Windows 7 operating system.

Activating and Customizing Software in Windows 8

Guides on activating and customizing software within the Windows 8 operating system.

Computer Setup (F10) Utility

Computer Setup (F10) Utilities

Overview of the functionalities and options available in the Computer Setup utility.

Computer Setup—File

Computer Setup—Storage

Computer Setup—Security

Computer Setup—Power

Computer Setup—Advanced

HP PC Hardware Diagnostics

Why Run HP PC Hardware Diagnostics – UEFI

Explains the benefits and purpose of using HP PC Hardware Diagnostics.

Routine Care and Disassembly Preparation

Electrostatic Discharge Information

Information and precautions regarding electrostatic discharge (ESD) and its effects.

Personal Grounding Methods and Equipment

Grounding the Work Area

Routine Care

Removal and Replacement Procedures All-in-One (AIO) Chassis

Preparing to Disassemble the Computer

Steps to take before disassembling the computer to avoid injury or damage.

Access Panel

Stand

Lower Panel

Replacing Drives

Instructions for replacing the hard disc drive and optical disc drive.

Replacing the Optical Disc Drive

Memory

Information on memory modules and procedures for removal/installation.

Replacing the Battery

Heat Sinks – Graphics Board and Processor

Procedures for removing graphics and processor heat sinks.

Processor

Procedure for removing and installing the processor.

mSATA Solid-State Drive

Graphics Board

Side Panels

Power Supply

Procedure for removing and replacing the computer's power supply.

System Board

Procedure for removing and replacing the computer's system board.

Front Bezel

Display Panel

Procedure for removing and replacing the computer's display panel.

Troubleshooting Without Diagnostics

Safety and Comfort

Before You Call for Technical Support

Steps to take to isolate problems before contacting technical support.

Solving General Problems

Common causes and solutions for general computer problems.

Solving Hard Drive Problems

Common causes and solutions for hard drive related issues.

Solving Media Card Reader Problems

Common causes and solutions for media card reader issues.

Solving Display Problems

Common causes and solutions for display related issues.

Solving Audio Problems

Solving Printer Problems

Solving Keyboard and Mouse Problems

Common causes and solutions for keyboard and mouse issues.

Solving Hardware Installation Problems

Solving Network Problems

Common causes and solutions for network connectivity issues.

Solving Memory Problems

Solving Processor Problems

Solving CD-ROM and DVD Problems

Solving USB Flash Drive Problems

Solving Front Panel Component Problems

Solving Internet Access Problems

Solving Software Problems

Contacting Customer Support

Backup and Recovery

Restoring and Recovering in Windows 7

Procedures for restoring and recovering data and system in Windows 7.

Backup and Recovery in Windows 8

Procedures for backing up and recovering data in Windows 8.

POST Error Messages

POST Numeric Codes and Text Messages

Lists numeric codes and text messages encountered during POST.

Interpreting POST Diagnostic Front Panel LEDs

Guide to interpreting front panel LED codes and audible codes during POST.

Password Security and Resetting CMOS

Establishing a Setup or Power-on Password

Steps to establish setup or power-on passwords for the computer.

Resetting the Setup and Power-on Password

Procedure for resetting or clearing setup and power-on passwords.

Clearing and Resetting the CMOS

Procedure for clearing and resetting the computer's CMOS settings.