Dell 6100 Installation instructions

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W
arnings, Cautions, and Notes
Throughout this manual, there may be blocks of text printed in bold type or in
italic type. These blocks are warnings, cautions, and notes, and they are used as
follows:
NOTE: A NOTE provides helpful information about using the computer system.
WARNING: A WARNING indicates the potential for bodily harm and
provides instructions for how to avoid the problem.
CAUTION: A CAUTION indicates either potential damage to hardware
or loss of data and provides instructions for how to avoid the problem.
Information in this document is subject to change without notice.
1997 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarksusedinthistext:Dell,theDELLlogo,andPowerEdgeareregisteredtrademarksofDellComputerCorporation;IntelandPentiumare registeredtrademarks
of Intel Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Computer
Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
August 1997 P/N 81655

Dell PowerEdge 6100/200 System Microprocessor Replacement 1
Dell
®
PowerEdge
®
6100/200 System
Microprocessor Replacement
T
his document provides the procedures for replacing the Intel®Pentium®Pro
microprocessor(s) in a Dell PowerEdge 6100/200 system. Unless otherwise
noted, each procedure assumes the following:
•You have performed the steps in “Precautionary Measures” that follows.
•You can replace or reinstall a part by performing the removal procedure in
reverse order unless additional information is provided.
•The system has BIOS Revision A05 or greater.
If the system has a different BIOS, follow the procedures in “BIOS
Upgrade” later in this document.
P
recautionary Measures
Before you perform any of the procedures in this chapter, take a few moments
to read the following warning for your personal safety and to prevent damage to
the computer system from ESD.
WARNING FOR YOUR PERSONAL SAFETY AND PROTECTION
OF THE EQUIPMENT: Only trained service technicians should per-
form the following procedures. Before you start to work on the
computer, perform the following steps in the sequence listed.
1. Turn off the computer and any attached peripherals.
2. Disconnect the computer and any attached peripherals from their
power sources to reduce the potential for personal injury.
3. Disconnect any communications cables.
4. Wear a wrist grounding strap, and clip it to any unpainted metal sur-
face on the computer chassis.
If a wrist grounding strap is not available, touch any unpainted
metal surface on the back of the computer chassis to discharge any
static charge from your body.
WARNING: The power supplies in this computer system produce high
voltages and energy hazards, which can cause bodily harm. Only trained
service technicians are authorized to remove the computer covers and
access any of the components inside the computer.

2 Dell PowerEdge 6100/200 System Microprocessor Replacement
B
IOS Upgrade
1. Insert the BIOS diskette that came in the replacement kit into drive A.
2. Turn on the system.
3. After the system completes the boot routine, follow the instructions on
the monitor.
4. After the message BIOS has been successfully installed
appears on the monitor, remove the diskette from drive A and follow
the instructions on the monitor to reboot the system.
WARNING: The system may have more than one power supply cable.
To reduce the risk of electrical shock, a trained service technician must
disconnect all power supply cables before servicing the system.

Dell PowerEdge 6100/200 System Microprocessor Replacement 3
C
omputer Cover
Figure 1. Keylocks on Computer’s Back Panel
1. Turn the left cover’s keylock on the back panel of the computer to the
unlocked position.
2. Loosen the three screws along the back edge of the left cover.
Figure 2. Computer Cover Removal
3. Slide the cover toward the back of the computer an inch or so. Then
grasp the top of the cover at both ends, and lift it straight away from the
chassis.
keylock
(unlocked
position) keylock (locked
position)
screw (6)

4 Dell PowerEdge 6100/200 System Microprocessor Replacement
S
upport Panel
Figure 3. Support Panel Removal
1. Remove the left computer cover.
2. Remove the support panel.
Remove the two screws from the support panel and pull the back edge tabs
on the panel out of the slots in the chassis.
support panel
slot (2)
tab (2)
screw (2)

Dell PowerEdge 6100/200 System Microprocessor Replacement 5
M
icroprocessor and Terminator Module
Figure 4. Microprocessor and Terminator Module Removal
1. Remove the left computer cover.
2. Remove the support panel.
3. Remove the microprocessor or terminator module.
Grasp the module by the corners and carefully pull the module out until the
edge connectors are free from the system board connectors.
NOTES: Both microprocessor module connectors must be populated. The
secondary connector must have either another microprocessor module or a
terminator module.
Be careful not to touch components or the gold edge connectors on the
module.
memory module
secondary
microprocessor or
terminator module
primary
microprocessor
module

6 Dell PowerEdge 6100/200 System Microprocessor Replacement
4. On the new microprocessor module, check or set the jumper settings
according to those shown in Figure 5 and Table 1.
Figure 5. 200 MHz/1MB Microprocessor Module
CAUTIONS: All microprocessors must have the same processor
speed or the jumpers on all the microprocessor modules must be
jumpered to the speed of the lowest-speed microprocessor.
All microprocessors must have the same cache size.
All 200 MHz/1 MB microprocessors must be used on a microprocessor
module with Dell part number 95545.
All 200 MHz/1 MB microprocessors must be used in conjunction
with Dell BIOS Revision A05 or greater and Dell customer diagnos-
tics software 3.79D00 or greater. The BIOS and diagnostics software
are available through the Dell bulletin board service (BBS) and the
Dell Web site at www.dell.com.
If a Dell customer diagnostics diskette is included with your system,
use the diskette instead of the Dell Server Assistant CD.
For microprocessor modules with one microprocessor, populate the
PROCESSOR 1 socket first.

Dell PowerEdge 6100/200 System Microprocessor Replacement 7
Table 1. Microprocessor Module Jumper Settings
Jumper Setting Description
J6B1 (default) A processor is not installed in the
adjacent slot, the SKIP setting. This
jumper is useful only when you are
using in-target probe (ITP).
A processor is installed in the adja-
cent slot, the INCLUDE setting.
J6D1 (default) A processor is not installed in the
adjacent slot, the SKIP setting. This
jumper is useful only when you are
using ITP.
A processor is installed in the adja-
cent slot, the INCLUDE setting.
J4D1 (default) A 200/66 MHz microprocessor is
installed. See Table 2 for jumper set-
tings by microprocessor speed.
J4B1 (default) The fan heat sink jumper. Always set
to the default (passive).
J1C1 The processor(s) cache is 1 MB.
The processor(s) cache is 512 KB.
Table 2. Processor Frequency Select
Frequency SEL0 (Pins 1-2) SEL1 (Pins 3-4) SEL2 (Pins 5-6)
150/60 MHz No jumper No jumper No jumper
180/60 MHz Jumper No jumper No jumper
166/60 MHz No jumper No jumper Jumper
200/66 MHz Jumper No jumper Jumper
NOTE: A jumper is set on any of the three PARK settings (Pins 7-8, 9-10, or 11-12) for any
frequency selected.
jumpered unjumpered

8 Dell PowerEdge 6100/200 System Microprocessor Replacement
M
icroprocessor and Heat Sink
The computer can have up to four microprocessors installed.
Figure 6. Microprocessor Configuration
To remove the microprocessor/heat sink assembly, follow these steps:
1. Remove the left computer cover.
2. Remove the support panel and the appropriate microprocessor module.
3. Remove the microprocessor securing clip from the microprocessor/heat
sink assembly (see Figure 7).
WARNING: The microprocessor chip can get extremely hot during
system operations. Be sure the chip has had sufficient time to cool
before touching it.
microprocessor
securing clip
thermal interface pad
(attached to the heat sink)
microprocessor
pin-1 corner of
socket
microprocessor
socket
front tab
heat sink

Dell PowerEdge 6100/200 System Microprocessor Replacement 9
Press down on the folded part of the clip with a small screwdriver to release
the clip.
Figure 7. Microprocessor Securing Clip
4. Remove the heat sink.
The thermal interface pad is bonded to the heat sink and will remain
attached to the old heat sink.
5. Push outward and then upward on the release lever to rotate the lever
to its fully vertical position (see Figure 8).
CAUTION: Never remove the heat sink from a microprocessor
unless you intend to remove the microprocessor. The heat sink is nec-
essary to maintin proper thermal conditions
CAUTION: Be careful not to bend any of the pins when removing
the microprocessor chip from its socket. Bending the pins can perma-
nently damage the microprocessor chip.
microprocessor
securing clip hooks
over tabs on socket
(front and back)
microprocessor
heat sink
socket
release lever
microprocessor
socket

10 Dell PowerEdge 6100/200 System Microprocessor Replacement
Figure 8. Removing a Microprocessor
6. Lift the microprocessor out of its socket.
To install the replacement microprocessor/heat sink assembly, ensure that the
microprocessor release lever is in its fully vertical position to allow the micro-
processor pins to easily slip into the socket. When the microprocessor/heat sink
assembly is in place, rotate the microprocessor release lever to its horizontal
position. Hook the microprocessor securing clip over the socket tab nearest the
front of the system board, and then snap it over the tab on the back of the socket.
Pin 1 on the microprocessor is located on the corner with the largest bevel and
the top of the chip also may have a dot (see Figure 9). The pin-1 hole in the
microprocessor socket is located on the corner where the holes are in a diagonal
pattern.
Figure 9. Pin-1 Identification
Correct any necessary jumper settings on the microprocessor module (see Fig-
ure 5 and Table 1) if you add or remove a microprocessor. Verify that the system
setup program and the system configuration utility settings are correct after the
system is reassembled and turned on. See your system User’s Guide for more
information about these settings.
microprocessor chip
release lever
pin-1 corner of
chip and socket
aligned
pin-1 corner
(dot and/or
notched corner)

®
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