DEC Personal Workstation 266I Digital Personal Workstation: Pentium II Processor Upgrade Instructions
Digital Personal Workstation
Pentium II Processor Upgrade Instructions
Introduction
This upgrade process involves remov ing the orig inal Processor and upg rading it with
a faster Pentium II Processor. This can be a Single to Dual Processor upgrade or
just a Single to Single Processor upgrade.
Upgrade Kit Contents
Your Digital Personal Workstation Pentium II Processor Upgrade Kit consists of
the following items. Please review the k it contents and ensure that all of the parts are
present.
Speed Button (1)
•
(Your Processor’s Speed should be printed on the Speed Button)
Pentium II Processor Slot 1 Assem bly (Sing le or Dual)
•
Anti-Static W rist strap (1)
•
Universal Fan Mount and FAN (1)
•
(for Single to Dual Processor Upgrades only)
Wiring Holder (1)
•
(for Single to Dual Processor Upgrades only)
Pentium II Processor Upg rade Kit Upgrade I nstructions (ER -B 30WW- CA)(1)
•
(for Dual Processor Upgrades only)
This Installation Guide (1)
•
Tools Required
No tools are needed.
(5%::'$ $
Digital Personal Workstation Pentium II Processor Upgrade
Instruction Overv iew
The following sections of this manual cover:
Digital Personal Works tation Pent ium II Processor Upgr ade Instr uctions
Introduction
Upgrade Kit Contents
Tool s Re quired
Instruction Overview
Upgrading your Pr ocessor
Upgrading a Single Processor to a Faster Singl e Processor based Sy stem
Upgrading a Single Pr ocessor to a Dual Processor based System
Main Logic Board Jumper and Switch Settings (Intel based Pentium II System Models)
Processor Clock Speed Switch Settings (Intel based Pentium II System Models)
Removing and Replacin g th e Front Bezel
Replacing the System Bezel’s Product Medallion
How to determine the Speed of a Pentium II Processor
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Digital Personal Workstation Pentium II Processor Upgrade
Upgrading your Processor
Your workstation is equipped with either a single or dual I ntel Pentium I I processor
module installed in the appropriate Slot 1 socket on the main log ic board. Total
workstation performance is based upon your workstation m ain log ic board design,
speed and L2 cache of the processor module(s), amount of workstation m em ory,
video controller type and amount of video m em ory, and performance characteristics
of your hard disk drive.
If your workstation was purchased with a single Pentium II processor and you wish
to upgrade to a faster processor, or to a dual processor config uration, consider the
following information prior to upgrading y our work station.
1. Your workstation main logic board contains:
• An Intel 440FX (Natoma) mem ory and PCI controller
• Switch selectable processor clock input frequencies up to 533 MHz.
Refer to “Processor Clock Speed Switch Setting s” for details.
2. Single Pentium II processor m odules m ust be installed in the prim ary Slot
1 socket (closest to the workstation battery) and have a term ination card
installed in the second Slot 1 socket.
3. Pentium II processor m odules are av ailable with 512 KB L2 cache
memory. Dual processor configurations m ust hav e matching L2 caches.
4. Dual processor configurations must have Pentium I I processors with
matching stepping (m anufacturing rev ision). Processors with dif ferent
stepping might not function properly.
5. Higher performance Pentium I I processors m ig ht require loading the latest
BIOS firmware rev ision.
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Digital Personal Workstation Pentium II Processor Upgrade
6. Upgrading from a sing le Pentium II processor to a dual Pentium II
processor configuration requires a reloading of the operating system .
NOTE:
If you wis h to upg r a de your workstation to a dual pr oce s s or c onfiguration,
you will also nee d to cha ng e ope ra ting s ystems. Microsoft Windows NT
3.51 and 4.0 support dual processors .
Contact your Digital sal es represent ative or reseller for future process or upgr ades and
BIOS revisions.
Current versions of Windows 95 do not support dua l proc e s sor s .
Please refer to your Digital Personal Workstation System Reference Manual for
instructions on:
• Removing the System Cov er
• Removing the Main Logic Board
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Digital Personal Workstation Pentium II Processor Upgrade
Upgrading a Single Processor to a Faster Single
Processor based System
Should you wish to upgrade a Single Processor based system , to a faster Sing le
Processor , follow the instructions provided in this section. Be sure to save the
processor terminator card and fasteners. These components will be re-installed in the
same position and orientation as before. After installing the new processor, you will
need to make the needed changes to the switch setting s on the Main Logic B oard
that correspond to the processors’ speed. See the “Processor Clock Speed Switch
Settings” section for details.
1. T urn of f y our
workstation
and monitor .
2. Disconnect all external dev ices, ac power , and m onitor power.
3. Rem ove the outside cov er and Main Logic Board.
STATIC SENSITIVE
such as paper , cloth , or pl as ti c. A s tat ic di s ch ar g e can be damaging
even though you often cannot see or feel it. To prevent damage to
the processor:
• Touch the metal frame of your w orkstation to discharge any
static electricity.
• Keep the processor away from non - con du ctors
• Be sure to use the provided Wrist strap
:
Static electricity collects on non-condu ctors
4. Release the processor from its socket by pushing in on the two plastic tabs at
each side of the processor (see Figure 1-1).
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Digital Personal Workstation Pentium II Processor Upgrade
5. Carefully remo ve the old processor and term ination card out and away from
their sockets.
DEC02025-2
Figure 1-1. Releasing the Installed Processor
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Digital Personal Workstation Pentium II Processor Upgrade
6. Rem ov e the bracket, w ith the term ination card attached, from the
processor’s heatsink (see Figure 1- 2).
DEC02027
Figure 1-2. Removing the Bracket and Termination Card
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Digital Personal Workstation Pentium II Processor Upgrade
7. I nstall the brack et, with the term ination card attached, to the new processor’ s
heatsink (see Figure 1-3).
DEC02027
Figure 1-3. Installing the Bracket and Termination Card
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Digital Personal Workstation Pentium II Processor Upgrade
8. Carefully re- install the new processor and term ination card into their
sockets.
DEC02025-2
Figure 1-4. Reinstalling the Processor
9. Set all appropriate switch settings on the main logic board.
10. Re-install the Main Logic Board.
11. Replace the outside cover. Reconnect all external devices and restore power .
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Digital Personal Workstation Pentium II Processor Upgrade
Upgrading a Single Processor to a
Dual Processor based System
Should you wish to upgrade a Single Processor based system , to a Dual Processor,
follow the instructions provided in this section. Be sure to save the fasteners. These
components will be re-installed in the sam e position and orientation as before. After
installing the new processors, you will need to mak e the needed chang es to the
switch settings on the Main Logic Board that correspond to the processors’ speed.
See the “Processor Clock Speed Switch Settings” section for details.
1. T urn of f y our
workstation
and monitor .
2. Disconnect all external dev ices, ac power , and m onitor power.
3. Rem ove the outside cov er and Main Logic Board.
STATIC SENSITIVE
such as paper , cloth , or pl as ti c. A s tat ic di s ch ar g e can be damaging
even though you often cannot see or feel it. To prevent damage to
the processor:
• Touch the metal frame of your w orkstation to discharge any
static electricity.
• Keep the processor away from non - con du ctors
• Be sure to use the provided Wrist strap
:
Static electricity collects on non-condu ctors
4. Release the processor from its socket by pushing in on the two plastic tabs at
each side of the processor (see Figure 1-5).
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Digital Personal Workstation Pentium II Processor Upgrade
5. Carefully remo ve the old processor and term ination card out and away from
their sockets.
NOTE:
with a completely assembled dual proces s or a ss e mbly. If your upgrade kit
has two process ors , s k ip s te ps 6 a nd 7.
Because of dual processor stepping, some upgrade kits might come
DEC02025-2
Figure 1-5. Releasing the Installed Processor
6. Rem ov e the bracket, w ith the term ination card attached, from the
processor’s heatsink (see Figure 1- 6).
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Digital Personal Workstation Pentium II Processor Upgrade
12
DEC02027
Figure 1-6. Removing the Bracket and Termination Card
Digital Personal Workstation Pentium II Processor Upgrade
7. Attach the new heat sink , with new processor attached, to the old heatsink
(see Figure 1-7).
DEC02028
Figure 1-7. Attaching the New Processor
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Digital Personal Workstation Pentium II Processor Upgrade
8. Carefully insert both processors into their respective sock ets on the m ain
logic board (see Figure 1-8).
9. Secure both processors to their sock ets by pushing out on the two plastic
tabs at each side of each processor.
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DEC02026-2
Figure 1-8. Installing Both Processors
Digital Personal Workstation Pentium II Processor Upgrade
10. Set all appropriate switch settings on the m ain log ic board.
11. Re-install the Main Logic Board.
12. Locate the new fan assembly unit that is part of your dual processor upg rade
kit. It is installed in the upper rear of the chassis. Refer to the graphic below
to learn how to place and install the fan. Refer to the end of this document
and plug the new fan power cable into the fan power connector (J24) located
on the Main Logic Board. Refer to Figure 1-12, at the end of this document
for added power connector location information.
FOR FAN ORIENTATION,
CHECK THE FAN FOR TH E
FOLLOW ING MARKINGS.
THE TOP ARROW SHOULD
POINT "UP" AND THE BOTTOM
FAN POW ER W IRING
SHOULD COME OUT
OF THE TOP OF THE
FAN ASSEMBLY...
ARROW INDICATES THE AIR
DIRECTION.
AIR FLOW DIRECTION
AIR IS DRAWN THROUGH
THE CHASSIS AND IS
BLOWN OUT THE BACK
O F T H E U NIT...
DECI100897-1
Figure 1-9. Installing the additional Fan Assembly
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Digital Personal Workstation Pentium II Processor Upgrade
MAKE SUR E TH AT TH E
FAN POWER W IRE
FEEDS FR OM TH E TO P
OF THE FA N.
16
DEC-I926WS1
Figure 1-10. Installing the additional Fan Assembly
J24 CO N N EC T O R
LOCATION O N THE
MAIN LOGIC
BOARD
Digital Personal Workstation Pentium II Processor Upgrade
POWER WIRE ROUTING FROM
BACK OF FAN, UNDER TOP CHASSIS
BRACE, THROUGH WIRE HOLDER,
TO POWER CONNECTOR J24 ON THE
M A IN LO GIC B OAR D .
FAN POWER WIRE
MUST COME OUT THE
TOP RIGH T M OST SLOT
OF THE FAN ASSEMBLY.
BECAREFUL NOT TO
PINCH OR DAMAGE
THE WIRING.
FAN MOUNTS
HERE
MO UN T THE FAN W IRE
HOLDER TO THE UNDERSIDE
OF THE CHASSIS TOP BRACE.
THE W IRE HO LD ER S HO ULD
CENTERED ON THE BRACE
APPROXIMATELY 3/4" TO
THE LEFT O F TH E LEFT-MO ST
SIDE DIMPLE.
Figure 1-11. Wiring Path for additional Fan A ssembly
13. Reinstall the outer cover and connect all external devices and restore
power.
14. If you use W indows NT 4.0 as your operating system , and the processor
upgrade that you made was for a Single to a Dual Processor
configuration, refer to the document entitled “Digital Personal
W ork station Pentium I I Du al Processor Upg rade Kit Upgrade
Instructions”, Part # ER-B 30WW-C A. This docum ent will tell y ou what
you need to get W indows NT to recognize both processors.
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Digital Personal Workstation Pentium II Processor Upgrade
Main Logic Board Jumper and Switch Settings
(Intel based Pentium II System Models)
The jumper and switch settings located on the main logic board can be set to control
many features in your workstation. Use the following tables and fig ure to locate the
jumper and switch settings on the main logic board and then m odify the settings for
desired results.
Feature Function Setting Description
Bus clock
Bus/core
frequency
ratio
66 MHz
60 MHz
SW1-1, ON
SW1-1, OFF
SW1-2, OFF
SW1-3, OFF
SW1-4, ON
SW1-8, ON
(1)
Determines the processor and PCI clock speed for the installed
processor. This switch must be s et along w ith the S W 1-2, S W 13, SW1-4, and SW1-8 CPU Core/Bus Ratio switches. Refer to
the Processor Clock Speed Switch S ettings table.
Sets processor clock speed multiplier ( in incr em ents of .5)
See “Processor Clock Speed Switch Settings ” table for
appropriate settings for your CPU
Password
clear
Recovery
mode
Clear CMOS Enable
Clear
Normal
Recovery
Normal
Disable
(1)
(1)
(1)
(1) Factory default setting
OFF = Up; ON = down
18
SW1-5, ON
SW1-5, OFF
SW1-6, ON
SW1-6, OFF
SW1-7, ON
SW1-7, OFF
(1)
(1)
(1)
If you forget your passwor d, s et this s w itch to O N and then
restart the workstation.
If your flash BIOS upgr ade f ailed, se t this s w itch to O N so you
can boot your workstation from a Crisis Recover y dis kette.
Refer to the README.TXT provided with the flash BIOS
upgrade.
Clears CMOS of all BIOS setup infor mation. U s e the Enable
setting when your workstation will not boot, and BIO S se tup
cannot be accessed due to configuration data corruption. This
switch must be set back to Disable before r e booting your
workstation.
Digital Personal Workstation Pentium II Processor Upgrade
Processor Clock Speed Switch Settings
(Intel based Pentium II System Models)
The following table provides the switch settings for a num ber of available P entium
II processors. The switches should be set to match the speed stam ped on the
processor.
Processor Speed1SW1-2 SW1-3 SW1-4 SW1-8
233 MHz Off Off On On
266 MHz On On Off On
300 MHz Off On Off On
333 MHz
366 MHz
400 MHz
433 MHz
466 MHz
500 MHz
533 MHz
2
2
2
2
2
2
2
On Off Off On
Off Off Off On
On On On Off
OffOnOnOff
On Off On Off
Off Off On Off
On On Off Off
(1) )
The Speed settings in this table assume that SW1-1 is in the ON position (Factory default)
(2)
The processor speeds indicated above are anticipated future processor products from Intel. This does not
constitute a promise of the availability of such a processor, but should it be made available some time in the
future, these are the needed switch settings to support such a processor.
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Digital Personal Workstation Pentium II Processor Upgrade
OFF
6521347
ON
SW1
8
DEC01217-6
Figure 1-12. Ty pical Main Logic Board Switch Location
1
2
3
J27
J24 Fan Power
J24
Connector
20
NOTE:
Refer to your Syst em Reference for the exact location should
the above illustration appear incorrect. Some Main Logic Boards
will have different layouts depending upon your System’s Model.
Digital Personal Workstation Pentium II Processor Upgrade
Removing and Replacing the Front Bezel
To install the new product m edallion, the front work station bezel m ust be rem ov ed.
The following procedures describe how to remove the front bezel..
1. T urn of f y our workstation and m onitor.
2. Disconnect all external dev ices, ac power , and m onitor power.
3.
Remove the outside cover.
4.
From the top of the workstation, looking down towards the bottom of the
front of the chassis, you should see two tabs from the front bezel that hold
the bezel in place and secure it to the chassis. Find both tabs (one on the left
and one on the right).
5.
By pushing on both of these tabs towards the center of the workstation, you
can release the top of the bezel.
6.
Gently pull the top of the bezel approximately an inch away from the top of
the chassis.
7.
Gently but firmly, pull up on the bezel to detach the bottom bezel mounts.
8.
To replace or reinstall the front bez el, face the sy stem. Tilt the front bezel
out at the top, insert the lower feet into the chassis and then rotate the top
aligning the locking tabs with the holes in the fram e and chassis. I f needed
press the locking tabs inward as you did to unlatch the locking tabs, to m ake
it easier to reinstall the system.
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Digital Personal Workstation Pentium II Processor Upgrade
22
DEC00758-10
Figure 1-13. Removing the Front Bezel
Digital Personal Workstation Pentium II Processor Upgrade
Replacing the System Bezel’ s Product Medallion
The System Bezel’s Product Medallion is the small elliptical button or medallion that
is located on the lower front of your system. The color of the medallion and the
numbers that are printed on the button, correspond to the model and/or processor’s
speed of your system. Your Processor Upgrade Kit includes a new medallion for
your new processor speed.
To rem ov e and replace the m edallion, you m ust first rem ov e the front bezel as
defined in Figure 1-13. By turning the bezel ov er , y ou can see the friction stem s that
secure the Product Medallion in place. By pressing on the stems with y our thum b,
you can force the medallion from the sock et and rem ove it from the front. To insert
the new medallion, orient the printing on the button so that it is upright and so that
the friction stems on the rear of the medallion correspond to the socket holes in the
bezel. Insert the friction stems into the holes and with y our thum b, press the button
in as far as it can go. The medallion’ s surface should be flush with the front bez el.
Figure 1-14. Rear of Front Bezel: Medallion Friction Stem Locations
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Digital Personal Workstation Pentium II Processor Upgrade
How to determine the Speed of a Pentium II
Processor
The processor’s speed and other relevant information is stam ped or mark ed on the
Processor as identified in Figure 1-15. Inform ation printed on y our processor(s) m ay
differ from the information that was used within the exam ple shown below.
DC80522 P233 512 SLXXX
26511760-300
24
FACTORY/COUNTRY CODE
26511760-300
DC 80522 P233 512 S LXX X
SERIAL
NUMBER
PRO CESSOR
SPEED
CACHE
SPECIFICATION
NUMBER
Figure 1-15. Pentium II Processor Identification Markings
DEC 0 9897-1I
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