HP Blade Blade User manual

Troubleshooting Guide
Business PCs
Document Part Number: 384569-001
May 2005
This guide provides helpful hints and solutions for troubleshooting
the above products as well as scenarios for possible hardware and
software problems.

© Copyright 2005 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
Microsoft, MS-DOS, and Windows are trademarks of Microsoft Corporation in
the U.S. and other countries.
The only warranties for HP products and services are set forth in the express
warranty statements accompanying such products and services. Nothing herein
should be construed as constituting an additional warranty. HP shall not be liable
for technical or editorial errors or omissions contained herein.
This document contains proprietary information that is protected by copyright.
No part of this document may be photocopied, reproduced, or translated to
another language without the prior written consent of Hewlett-Packard
Company.
ÅWARNING: Text set off in this manner indicates that failure to follow
directions could result in bodily harm or loss of life.
ÄCAUTION: Text set off in this manner indicates that failure to follow
directions could result in damage to equipment or loss of information.
Troubleshooting Guide
Business PCs
First Edition (May 2005)
Document Part Number: 384569-001

Troubleshooting Guide www.hp.com iii
Contents
1 Computer Diagnostic Features
HP Insight Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1
Accessing HP Insight Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2
Survey Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3
Test Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4
Status Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5
Log Tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Help Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6
Saving and Printing Information in HP Insight Diagnostics . . . . . . . . . . . . . . . . . 1–7
Downloading the Latest Version of HP Insight Diagnostics . . . . . . . . . . . . . . . . . 1–7
Protecting the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
Restoring the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8
2 Troubleshooting Without Diagnostics
Safety and Comfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1
Before You Call for Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2
Helpful Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4
Solving General Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6
Solving Power Supply Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–10
Solving Diskette Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12
Solving Hard Drive Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–15
Solving MultiBay Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–17
Solving Display Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–18
Solving Audio Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–23
Solving Printer Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–26
Solving Keyboard and Mouse Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–27
Solving Hardware Installation Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–30
Solving Network Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–33
Solving Memory Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–37

iv www.hp.com Troubleshooting Guide
Contents
Solving Processor Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–38
Solving CD-ROM and DVD Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–39
Solving Drive Key Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–41
Solving Front Panel Component Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–41
Solving Internet Access Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–42
Solving Software Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–45
Contacting Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–46
A POST Error Messages
POST Numeric Codes and Text Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A–2
POST Diagnostic Front Panel LEDs and Audible Codes . . . . . . . . . . . . . . . . . . . . . . A–12
B Password Security and Resetting CMOS
Resetting the Password Jumper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–2
Clearing and Resetting the CMOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
Using the CMOS Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–3
Using Computer Setup to Reset CMOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B–5
C Drive Protection System (DPS)
Accessing DPS Through Computer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C–2
Index

Troubleshooting Guide www.hp.com 1–1
1
Computer Diagnostic Features
HP Insight Diagnostics
✎HP Insight Diagnostics is included on CD with some computer
models only.
The HP Insight Diagnostics utility allows you to view information
about the hardware configuration of the computer and perform
hardware diagnostic tests on the subsystems of the computer. The
utility simplifies the process of effectively identifying, diagnosing,
and isolating hardware issues.
The Survey tab is displayed when you invoke HP Insight Diagnostics.
This tab shows the current configuration of the computer. From the
Survey tab, there is access to several categories of information about
the computer. Other tabs provide additional information, including
diagnostic test options and test results. The information in each screen
of the utility can be saved as an html file and stored on a diskette or
USB HP Drive Key.
Use HP Insight Diagnostics to determine if all the devices installed on
the computer are recognized by the system and functioning properly.
Running tests is optional but recommended after installing or
connecting a new device.
You should run tests, save the test results, and print them so that you
have printed reports available before placing a call to the Customer
Support Center.
✎Third party devices may not be detected by HP Insight Diagnostics.

1–2 www.hp.com Troubleshooting Guide
Computer Diagnostic Features
Accessing HP Insight Diagnostics
You must boot to the Documentation and Diagnostics CD, as
described in the steps below, to access HP Insight Diagnostics.
1. While the computer is on, insert the Documentation and
Diagnostics CD into an optical drive on the computer.
2. Shut down the operating system and turn off the computer.
3. Turn on the computer. The system will boot to the CD.
✎If the system does not boot to the CD in the optical drive, you may
need to change the boot order in the Computer Setup (F10) utility so
that the system attempts to boot to the optical drive before booting to
the hard drive. Refer to the Computer Setup (F10) Utility Guide on
the Documentation and Diagnostics CD for more information.
4. When prompted, press the Ykey if you want to operate in Safe
mode or any other key if you want to operate in Regular mode.
✎Regular mode is the default mode if no keys are pressed within the
specified time frame. If the screen remains blank after pressing any
key other than Y, try rebooting and select safe mode when prompted.
5. Select the appropriate language and click Continue.
✎It is recommended that you accept the assigned default keyboard for
your language unless you want to test your specific keyboard.
6. In the End User License Agreement page, click Agree if you
agree with the terms. The HP Insight Diagnostics utility launches
with the Survey tab displayed.

Troubleshooting Guide www.hp.com 1–3
Computer Diagnostic Features
Survey Tab
The Survey tab displays important system configuration information.
In the View section on the left side of the screen, you can select the
Summary view to see limited configuration data or select the
Advanced view to see all the data in the selected category. Regardless
of whether you choose Advanced or Summary, the following
categories of information are available on the Survey tab:
All—Gives a listing of all categories of information about the
computer.
Overview—Gives you a listing of general information about the
computer.
Architecture—Provides system BIOS and PCI device information.
Asset Control—Shows asset tag, system serial number, and
processor information.
Communication—Shows information about the computer parallel
(LPT) and serial (COM) port settings, plus USB and network
controller information.
Graphics—Shows information about the graphics controller of the
computer.
Input Devices—Shows information about the keyboard, mouse, and
other input devices connected to the computer.
Memory—Shows information about all memory in the computer.
This includes memory slots on the system board and any memory
modules installed.
Miscellaneous—Shows information obtained from the computer
configuration memory (CMOS), system management BIOS data,
system board data, and diagnostics component information.
Storage—Shows information about storage media connected to the
computer. This list includes all fixed disks, diskette drives, and optical
drives.
System—Shows information about the system board, processor,
chassis, and BIOS, plus internal speaker and PCI bus information.

1–4 www.hp.com Troubleshooting Guide
Computer Diagnostic Features
Test Tab
The Test tab allows you to choose various parts of the system to test.
You can also choose the type of test and testing mode.
There are two test modes to choose from:
■Interactive Mode—Provides maximum control over the testing
process. The diagnostic software will prompt you for input during
tests that require your interaction.You may also determine
whether the test passed or failed.
■Unattended Mode—Does not display prompts and requires no
interaction. If errors are found, they are displayed when testing is
complete.
There are three types of tests to choose from:
■Quick Test—Provides a predetermined script where a sample of
each hardware component is exercised and requires no user
intervention in either Unattended or Interactive mode.
■Complete Test—Provides a predetermined script where each
hardware component is fully tested. There are more tests
available in the Interactive mode, but these require user
intervention.
■Custom Test—Provides the most flexibility in controlling the
testing of a system. The Custom Test mode allows you to
specifically select which devices, tests, and test parameters are
run.
To begin testing:
1. Select the Test tab.
2. On the left side of the tab, select the Type of Test to perform
(Quick, Complete, or Custom).
3. On the left side of the tab, select the Test Mode (Interactive or
Unattended).
4. Select the device to be tested from the drop-down list.

Troubleshooting Guide www.hp.com 1–5
Computer Diagnostic Features
5. Choose how you want the test to be executed, either Number of
Loops or Total Test Time. When choosing to run the test over a
specified number of loops, enter the number of loops to perform.
If you desire to have the diagnostic test for a specified time
period, enter the amount of time in minutes.
6. Click Begin Testing to start the test. The Status tab, which allows
you to monitor the progress of the test, is automatically displayed
during the testing process. When the test is complete, the Status
tab shows whether the device passed or failed.
7. If errors are found, go to the Log tab and click the Error Log to
display more detailed information and recommended actions.
Status Tab
The Status tab displays the status of the selected tests. The type of test
executed (Quick, Complete, or Custom) is also displayed. The main
progress bar displays the percent complete of the current set of tests.
While testing is in progress, a Cancel Testing button is displayed for
use if you want to cancel the test.
After testing has completed, the Cancel Testing button is replaced
with a Retest button. The Retest button will retest the last set of tests
executed. This enables you to re-run the set of tests without having to
re-enter the data in the Test tab.
The Status tab also shows:
■The devices being tested
■The tests that are running
■The overall elapsed time
■The individual elapsed test times
■The condition status of each test

1–6 www.hp.com Troubleshooting Guide
Computer Diagnostic Features
Log Tab
The Log tab contains two logs, a Test Log and an Error Log, each of
which can be selected from the left side of the tab.
The Test Log displays all tests that have been executed, the number of
times of execution, the number of times the test failed, and the time it
took to complete the test. The Clear Test Log button will clear the
contents of the Test Log.
The Error Log displays the tests for devices that have failed during
the diagnostic testing and includes the following columns of
information.
■The Description section describes the error that the diagnostic
test found.
■The Recommended Repair will give a recommended action that
should be performed to resolve the failed hardware.
■The Failed Count is the number of times the test has failed.
■The Error Code provides a numerical code for the failure. The
error codes are defined in the Help tab.
■The Clear Error Log button will clear the contents of the Error
Log.
Help Tab
On the Help tab you can select either Error Codes or Test
Components from the left side of the tab.
The Error Codes view provides a description of each numerical error
code and recommended actions for each code. To find an error code
description quickly, enter the code in the box at the top of the window
and click the Find Error Codes button.
The Test Components view displays low-level information on tests
that are run.

Troubleshooting Guide www.hp.com 1–7
Computer Diagnostic Features
Saving and Printing Information in HP Insight
Diagnostics
You can save the information displayed in the HP Insight Diagnostics
Status and Log tabs to a diskette or a USB 2.0 HP Drive Key (64MB
or higher). You can not save to the hard drive. The system will
automatically create an html file that has the same appearance as the
information displayed on the screen.
1. Insert a diskette or USB 2.0 HP Drive Key (capacity must be
64MB or higher). USB 1.0 Drive Keys are not supported.
2. Click Save in the upper right corner of the tab.
3. Select Save to the floppy or Save to USB key.
4. Enter a file name in the File Name box and click the Save button.
An html file will be saved to the inserted diskette or USB HP
Drive Key.
5. Print the information from the storage device used to save it.
✎To exit HP Insight Diagnostics, click Exit in the upper right corner of
the screen then remove the Documentation and Diagnostics CD from
the optical drive.
Downloading the Latest Version of HP Insight
Diagnostics
1. Go to www.hp.com.
2. Click the Support & Drivers link.
3. Click the Download driver and software radio button.
4. Enter your product number (for example, dc7600) in the text box
and press the Enter key.
5. Select your OS.
6. Click the Diagnostic link.
7. Locate HP Insight Diagnostics and click Download.

1–8 www.hp.com Troubleshooting Guide
Computer Diagnostic Features
✎The download includes instructions on how to create the
bootable CD.
Protecting the Software
To protect software from loss or damage, you should keep a backup
copy of all system software, applications, and related files stored on
the hard drive. See the operating system or backup utility
documentation for instructions on making backup copies of data files.
Restoring the Software
The Windows operating system and software can be restored to the
original state that they were when you purchased the computer by
using the Restore Plus! CD. See the documentation included with the
Restore Plus! CD for complete instructions on using this feature.

Troubleshooting Guide www.hp.com 2–1
2
Troubleshooting Without Diagnostics
This chapter provides information on how to identify and correct
minor problems, such as diskette drive, hard drive, optical drive,
graphics, audio, memory, and software problems. If you encounter
problems with the computer, refer to the tables in this chapter for
probable causes and recommended solutions.
✎For information on specific error messages that may appear on the
screen during Power-On Self-Test (POST) at startup, refer to
Appendix A, “POST Error Messages.”
Safety and Comfort
ÅWARNING: Misuse of the computer or failure to establish a safe and
comfortable work environment may result in discomfort or serious injury.
Refer to the Safety & Comfort Guide on the Documentation and
Diagnostics CD and available on the Web site at www.hp.com/ergo, for
more information on choosing a workspace and creating a safe and
comfortable work environment.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. For more
information, refer to Safety & Regulatory Information on the
Documentation and Diagnostics CD.

2–2 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Before You Call for Technical Support
If you are having problems with the computer, try the appropriate
solutions below to try to isolate the exact problem before calling for
technical support.
■Run the diagnostics utility. Refer to Chapter 1, “Computer
Diagnostic Features” for more information.
■Run the Drive Protection System (DPS) Self-Test in Computer
Setup. Refer to the Computer Setup (F10) Utility Guide on the
Documentation and Diagnostics CD for more information.
■Check the Power LED on the front of the computer to see if it is
flashing red. The flashing lights are error codes that will help you
diagnose the problem. Refer to Appendix A, “POST Error
Messages” for more information.
■If the screen is blank, plug the monitor into a different video port
on the computer if one is available. Or, change out the monitor
with a monitor that you know is functioning properly.
■If you are working on a network, plug another computer with a
different cable into the network connection. There may be a
problem with the network plug or cable.
■If you recently added new hardware, remove the hardware and
see if the computer functions properly.
■If you recently installed new software, uninstall the software and
see if the computer functions properly.
■Boot the computer to the Safe Mode to see if it will boot without
all of the drivers loaded. When booting the operating system, use
“Last Known Configuration.”
■Refer to the comprehensive online technical support at
www.hp.com/support.
■Refer to the following “Helpful Hints” section in this guide.
■Run the Restore Plus! CD.
ÄCAUTION: Running the Restore Plus! CD will erase all data on the hard
drive.

Troubleshooting Guide www.hp.com 2–3
Troubleshooting Without Diagnostics
To assist you in resolving problems online, HP Instant Support
Professional Edition provides you with self-solve diagnostics. If you
need to contact HP support, use HP Instant Support Professional
Edition's online chat feature. Access HP Instant Support Professional
Edition at: www.hp.com/go/ispe.
Access the Business Support Center (BSC) at
www.hp.com/go/bizsupport for the latest online support information,
software and drivers, proactive notification, and worldwide
community of peers and HP experts.
If it becomes necessary to call for technical assistance, be prepared to
do the following to ensure that your service call is handled properly:
■Be in front of your computer when you call.
■Write down the computer serial number and product ID number,
and the monitor serial number before calling.
■Spend time troubleshooting the problem with the service
technician.
■Remove any hardware that was recently added to your system.
■Remove any software that was recently installed.
■Run the Restore Plus! CD.
ÄCAUTION: Running the Restore Plus! CD will erase all data on the hard
drive.
✎For sales information and warranty upgrades (Care Packs), call your
local authorized service provider or dealer.

2–4 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Helpful Hints
If you encounter problems with the computer, monitor, or software,
see the following list of general suggestions before taking further
action:
■Check that the computer and monitor are plugged into a working
electrical outlet.
■Check to see that the voltage select switch (some models) is set to
the appropriate voltage for your region (115V or 230V).
■Check to see that the computer is turned on and the green power
light is on.
■Check to see that the monitor is turned on and the green monitor
light is on.
■Check the Power LED on the front of the computer to see if it is
flashing red. The flashing lights are error codes that will help you
diagnose the problem. Refer to Appendix A, “POST Error
Messages” for more information.
■Turn up the brightness and contrast controls of the monitor if the
monitor is dim.
■Press and hold any key. If the system beeps, then the keyboard
should be operating correctly.
■Check all cable connections for loose connections or incorrect
connections.
■Wake the computer by pressing any key on the keyboard or
pressing the power button. If the system remains in suspend
mode, shut down the computer by pressing and holding the power
button for at least four seconds then press the power button again
to restart the computer. If the system will not shut down, unplug
the power cord, wait a few seconds, then plug it in again. The
computer will restart if automatic start on power loss is set in
Computer Setup. If it does not restart, press the power button to
start the computer.
■Reconfigure the computer after installing a non–plug and play
expansion board or other option. See “Solving Hardware
Installation Problems” for instructions.

Troubleshooting Guide www.hp.com 2–5
Troubleshooting Without Diagnostics
■Be sure that all the needed device drivers have been installed. For
example, if you are using a printer, you need a driver for that
model printer.
■Remove all bootable media (diskette, CD, or USB device) from
the system before turning it on.
■If you have installed an operating system other than the
factory-installed operating system, check to be sure that it is
supported on the system.
■If the system has multiple video sources (embedded, PCI, or
PCI-Express adapters) installed (embedded video on some
models only) and a single monitor, the monitor must be plugged
into the monitor connector on the source selected as the primary
VGA adapter. During boot, the other monitor connectors are
disabled and if the monitor is connected into these ports, the
monitor will not function. You can select which source will be the
default VGA source in Computer Setup.
ÄCAUTION: When the computer is plugged into an AC power source,
there is always voltage applied to the system board. You must disconnect
the power cord from the power source before opening the computer to
prevent system board or component damage.

2–6 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Solving General Problems
You may be able to easily resolve the general problems described in
this section. If a problem persists and you are unable to resolve it
yourself or if you feel uncomfortable about performing the operation,
contact an authorized dealer or reseller.
Solving General Problems
Problem Cause Solution
Computer appears
locked up and will not
turn off when the power
button is pressed.
Software control of the
power switch is not
functional.
1. Press and hold the power button
for at least four seconds until the
computer turns off.
2. Disconnect the power cord from
the electrical outlet.
Computer will not
respond to USB
keyboard or mouse.
Computer is in
standby mode.
Press the power button to resume from
standby mode.
System has locked up. Restart computer.
ÄCAUTION: When attempting to resume from standby mode, do not hold down the
power button for more than four seconds. Otherwise, the computer will shut down and
you will lose any unsaved data.
Computer date and
time display is incorrect.
RTC (real-time clock)
battery may need to be
replaced.
✎Connecting the
computer to a live
AC outlet prolongs
the life of the
RTC battery.
First, reset the date and time under
Control Panel (Computer Setup can
also be used to update the RTC date
and time). If the problem persists,
replace the RTC battery. See the
Hardware Reference Guide on the
Documentation and Diagnostics CD
for instructions on installing a new
battery, or contact an authorized
dealer or reseller for RTC battery
replacement.
Cursor will not move
using the arrow keys on
the keypad.
The Num Lock key
may be on.
Press the Num Lock key. The
Num Lock light should not be on if
you want to use the arrow keys. The
Num Lock key can be disabled (or
enabled) in Computer Setup.

Troubleshooting Guide www.hp.com 2–7
Troubleshooting Without Diagnostics
Cannot remove
computer cover or
access panel.
Smart Cover Lock,
featured on some
computers, is locked.
Unlock the Smart Cover Lock using
Computer Setup.
The Smart Cover FailSafe Key, a
device for manually disabling the
Smart Cover Lock, is available from
HP. You will need the FailSafe Key in
case of forgotten password, power
loss, or computer malfunction. Order
PN 166527-001 for the wrench-style
key or PN 166527-002 for the
screwdriver bit key.
Poor performance is
experienced.
Processor is hot. 1. Ensure airflow to the computer is
not blocked.
2. Ensure fans are connected and
working properly (some fans only
operate when needed).
3. Ensure the processor heatsink is
installed properly.
Hard drive is full. Transfer data from the hard drive to
create more space on the hard drive.
Low on memory. Add more memory.
Hard drive fragmented. Defragment hard drive.
Program previously
accessed did not release
reserved memory back to
the system.
Restart the computer.
Virus resident on the hard
drive.
Run virus protection program.
Too many applications
running.
1. Close unnecessary applications
to free up memory.
2. Add more memory.
Solving General Problems (Continued)
Problem Cause Solution

2–8 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Poor performance is
experienced.
(continued)
Some software
applications, especially
games, are stressful on the
graphics subsystem
1. Lower the display resolution for
the current application or consult
the documentation that came with
the application for suggestions on
how to improve performance by
adjusting parameters in the
application.
2. Add more memory.
3. Upgrade the graphics solution.
Cause unknown. Restart the computer.
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).
Processor thermal
protection activated:
A fan may be blocked or
not turning.
OR
The heatsink 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 hood, press power button,
and see if the processor fan
spins. If the processor fan is not
spinning, make sure the fan's
cable is plugged onto the system
board header. Ensure the fan is
fully/properly seated or installed.
3. If fan is plugged in and seated
properly, but is not spinning, then
replace the processor fan.
4. Reseat processor heatsink and
verify that the fan assembly is
properly attached.
5. Contact an authorized reseller or
service provider.
Solving General Problems (Continued)
Problem Cause Solution