Intel Pentium II OverDrive User manual
II
2
Copyright © 1998 Intel Corporation. All rights reserved.
Intel Corporation
5200 N.E. Elam Young Parkway, Hillsboro, OR
97124-6497
Intel Corporation assumes no responsibility for errors
or omissions in this guide, nor does Intel make any
commitment to update the information herein.
*Other brands and names are the property of their
respective owners.
First Edition May 1998
Part number: 696766-001
Information in this document is provided in connection with Intel
products. No license, express or implied, by estoppel or otherwise,
to any intellectual property rights is granted by this document.
Except as provided in Intel’s Three Year Limited Product Warranty
for this product, Intel assumes no liability whatsoever, and Intel
disclaims any express or implied warranty, relating to sale and/or
use of Intel products including liability or warranties relating to
fitness for a particular purpose, merchantability, or infringement of
any patent, copyright or other intellectual property right. Intel
products are not intended for use in medical, life saving, or life
sustaining applications. Intel may make changes to specifications
and product descriptions at any time, without notice.
The Pentium®II OverDrive®processor may contain design defects
or errors known as errata which may cause the product to deviate
from published specifications. Current characterized errata are
available on request.
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English
Contents
Check your Computer's Owner's Manual .....................................3
Single Processor Installation Instructions ....................................4
Dual Processor Installation Instructions.....................................19
Troubleshooting and Additional Information.............................23
Getting Help ...............................................................................28
Three Year Limited Warranty .....................................................30
First check your computer's owner's manual to see if it has a section
on installing computer upgrade hardware such as the Pentium® II
OverDrive®processor. If it does, follow the owner's manual
procedure, using this manual for addtional information.
Check your computer's owner's manual
This symbol indicates a CAUTION or WARNING. It
identifies operations or situations that may be harmful
or dangerous to you or your equipment. For your
safety and to protect your equipment, read and
observe all cautions and warnings.
This symbol indicates a NOTE. It identifies items of
special interest that pertain to the section or
procedure you are reading. Notes typically clarify or
expand the material in the text.
Explanation of symbols used in this guide:
4
Warning: Danger to equipment! The Pentium II
OverDrive processor can be damaged by static
discharge. Before handling the Pentium II OverDrive
processor, be sure to ground yourself by touching the
metal on your computer. Limiting your movements
during installation reduces static electricity.
Step 2 — Ground yourself
Step 3—U
Step 1—Run Diagnostics Program
Prior to installing the Pentium® II OverDrive® processor, run the
diagnostic program on the included diskette to verify proper
operation of your PC. The diagnostic program will also update
Windows* 95 to improve multimedia performance when running
software written for Intel’s MMX™ technology.
To run the diagnostic program (requires Windows 95 or Windows
NT* 3.51 or greater):
1. Insert the Pentium II OverDrive processor Diagnostic
diskette into drive A.
2. Choose File (for Windows NT 3.51) or Start (for
Windows 95 or Windows NT 4.0 or greater).
3. Choose Run.
4. Type a:\diag and click OK,wait for the menu to
appear on screen, then choose Run Diagnostics from
the menu.
Once the diagnostics are completed, continue the installation
process with Step 2. Be sure to run the diagnostics program again
after installing the Pentium II OverDrive processor to verify proper
operation of the new processor.
If you experience problems after installing the Pentium II
OverDrive processor, contact Intel customer support for more
information. (See "Getting Help" on page 28.)
Step 1 — Run Diagnostics Program
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To prevent damaging the Pentium II OverDrive processor and your
computer from a static discharge, ground yourself by touching the
metal back or side panel of your computer’s system unit.
Step 3 — Unplug computer and remove cover
Turn off the computer and any attached equipment (such as a
monitor or printer), unplug the power cord, and remove the cover.
Warning: Don't burn yourself! Many components can
become hot enough to cause mild skin burns. Wait at
least 15 minutes after turning off the power before
handling any parts.
OFF
ON
OFF
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Step 4 — Find the computer's Pentium®Pro
processor
Back of
System
ATX Motherboard
Pentium Pro
processor
In some systems, the Pentium Pro processor may be partially
obscured from sight by the system power supply, add-in cards, or
floppy/hard drive mounting brackets. It may be necessary to
remove add-in cards or drives to gain access to the processor socket.
Refer to your system documentation for information on removing
those items.
Find the Pentium Pro processor in your computer. The Pentium Pro
processor in most computers looks like one of the following:
PC-3846
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English
PC-3786
Clip
Fan power cable
Pentium Pro
processorBack of
system
Baby AT Motherboard
On top of your Pentium Pro processor there should be a passive
heatsink (which may be attached with a clip) or a fan heat sink with
an attached power cable.
Processor
socket
PC-3844
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Step 4—Find the computer's
Pentium processor.
Typical ZIF socket
(with handle)
Socket
Handle
After locating the processor, examine the socket to determine the
socket type. There are two socket types:
Some computers have an empty second socket next to the
processor. For more information on the installation
process for these computers, see the dual processor
section on page 19.
The Owner's Manual for your computer may show the location of
the processor. If you can't locate your computer's original processor,
contact your dealer or your computer manufacturer for assistance.
Do not raise
socket handle
unless fan
heat sink
clip has been
undone first!
Step 5 — Determine the socket type
1) A socket with a handle that locks or unlocks called a zero
insertion force (ZIF) socket.
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English
• If your computer has a power cable attached to the Pentium
Proprocessor'sfanheatsinkproceedwithStep6. Ifthefanheat
sink is attached with a clip go to Step 7. Otherwise, go directly
to Step 8.
Step 6 — Unplug the fan power cable
The fan power cable may be attached to your computer's power
supply or to a connector on the motherboard. If other cables are
in the way, carefully fold them out of the way so they don't touch
computer components. Then carefully unplug the heatsink's
power cable from the computer's power supply or slide the
power cable off the motherboard connector.
Your new OverDrive processor does not need the older
processor's fan, cable, or clip; after removing these
parts, store them with your Pentium Pro processor.
Typical LIF
socket
(no handle)
Warning: Damage to equipment! The Pentium II
OverDrive processor is incompatible with a LIF socket.
Attempting to install the Pentium II OverDrive processor
into a LIF socket will result in processor damage!
2) A socket without a handle is called a low insertion force
(LIF) socket.
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If your system uses a software program, such as Intel’s LANDesk®
Client Manager, to monitor the processor fan operation, the
Pentium II OverDrive processor may be compatible with that
feature. Refer to the Getting Help section on page 28 for more
information.
PC-3843N
System power
supply cable
Fan power cable
System Power Supply
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