Intel D850GB User manual
Intel®Desktop Board
D850GB/ D850GBAL
Quick Reference
This guide is written for technically qualified personnel with experience
installing and configuring desktop boards.
Before You Begin
Warning and Caution..........................................................................3
Safety and Regulatory Notice:............................................................3
Desktop Board Connectors...................................................................4
Supported Components.........................................................................6
Installation Steps
1 Installing the AGP Card Retention Mechanism
(D850GB only).............................................................................. 7
2 Installing the I/O Shield.................................................................9
3 Installing the Desktop Board ........................................................10
4 Installing the Processor Retention Mechanisms............................11
5 Installing the Processor................................................................. 13
6 Applying Thermal Grease to the Processor...................................14
7 Installing the Processor Fan Heatsink........................................... 15
8 Installing the Fan Heatsink Clips..................................................16
9 Installing the Memory Modules.................................................... 17
10 Connecting the Fans .....................................................................18
11 Installing an AGP Card................................................................. 18
12 Attaching IDE Hard Drives with the Ultra ATA-66/100 Cable.... 19
Setting the BIOS Configuration and USB Port 2 Routing
Jumpers ....................................................................................................20
BIOS Setup Program Defaults............................................................. 22
Items on the CD-ROM
x Product warranty
x Intel®Express Installer
x Intel®Desktop Board D850GB/D850GBAL Product Guide
x Software utilities and drivers
x Software license agreement
x Readme file
Part number: A30315-003
2 Intel Desktop Board D50GB/D850GBAL
Quick Reference
Getting Help
View or download product support information from Intel’s World Wide Web
site: http://support.intel.com/support/motherboards/desktop
Documents on the web site include:
x Intel®Desktop Board D850GB Technical Product Specification
x Intel®Desktop Board D850GB Specification Update
If you can’t find the information you need on the Web, contact your point of
purchase. The Intel Web site also includes telephone numbers and billing
charges, if applicable, for Intel customer support.
Intel Corporation (Intel) makes no warranty of any kind with regard to this
material, including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose. Intel assumes no responsibility for any errors
that may appear in this document. Intel makes no commitment to update nor to
keep current the information contained in this document. No part of this
document may be copied or reproduced in any form or by any means without
prior written consent of Intel.
An Intel®product, when used in accordance with its associated documentation, is
"Year 2000 Capable" when, upon installation, it accurately stores, displays,
processes, provides, and/or receives date data from, into, and between the
twentieth and twenty-first centuries, including leap year calculations, provided that
all other technology used in combination with said product properly exchanges
date data with it.
†Third-party brands and trademarks are the property of their respective owners.
Copyright
¤
2000, 2001,Intel Corporation. All rights reserved.
Intel Desktop Board D850GB/D850GBAL 3
Quick Reference
Before You Begin
Warning and Caution
WARNING
Disconnect the board’s power supply from its AC power source
before you connect or disconnect cables, or install or remove any
board components. Failure to do this can result in personal injury or
equipment damage. Some circuitry on the desktop board can
continue to operate even though the front panel power switch is off.
CAUTION
Electrostatic discharge (ESD) can damage desktop board components.
Install the board at an ESD-controlled workstation. If such a workstation
is not available, wear an antistatic wrist strap or touch the surface of the
antistatic package before handling the board.
Safety and Regulatory Notice:
See the Intel®Desktop Board D850GB/D850GBAL Product Guide for all
applicable regulatory compliance statements, product certification markings, and
safety and electromagnetic compatibility (EMC) standards and regulations these
desktop boards are compliant with..
Replacement battery warning label provided: Place the label inside the chassis
in an easy-to-see location near the battery but not on the board itself.
Intended uses: This product was evaluated as information technology
equipment (I.T.E) for home or office use when installed into an appropriate
computer chassis. Other end uses or locations may require further evaluation.
4 Intel Desktop Board D50GB/D850GBAL
Quick Reference
Desktop Board Connectors
OM11532
USB
Devices
J8C3
1
3
2-pin alternate
power LED/Sleep
connector
On
Ground
Reset
HD LED
Power LED
IR Module
J9D2
+5V
No
Connection
2
1
16
15
A B C E F
Q
S P
RO M
G
I
J
K
H
L
Z
BB
AA
D
X
W
Y
V
U
T
IRTX
Ground
IRRX
+5V
Line
In
N
continued
Intel Desktop Board D850GB/D850GBAL 5
Quick Reference
Desktop Board Connectors (continued)
A. ADI AD1885 audio codec
(D850GBAL only) O. Diskette drive connector
B. Auxiliary line-in connector
(D850GBAL only) P. Primary IDE connector
C. Legacy CD-ROM connector
(D850GBAL only) Q. Secondary IDE connector
D. ATAPI-style CD-ROM
connector (D850GBAL only) R. USB port 2 routing jumper
(D850GB only)
E. AGP connector S. Front panel USB connector
F. Intel®82850 Memory
Controller Hub (MCH) T. Chassis fan connector
G. 12 V processor core voltage
connector U. Battery
H. Chassis fan connector V. BIOS configuration jumper
I. Processor socket W. Wake on LAN†technology connector
J. Processor fan connector X. SCSI LED connector
K. RIMM fan connector Y. Speaker
L. RIMM sockets Z. Intel®82801BA I/O Controller Hub
(ICH2)
M. Power connector AA.PCI bus add-in card connectors
N. Auxiliary power connector BB.Communication and Networking Riser
(CNR) (D850GB only)
CAUTION
Many of the midboard and front panel connectors provide operating
voltage (+5 V DC and +12 V DC, for example) to devices inside the
computer chassis, such as fans and internal peripherals. These
connectors are not overcurrent protected. Do not use these connectors
for powering devices external to the computer chassis. A fault in the load
presented by the external devices could cause damage to the computer,
the interconnecting cables, and the external devices themselves.
6 Intel Desktop Board D50GB/D850GBAL
Quick Reference
Supported Components
Processors
The board supports the following processors:
Processor Type Processor Frequency
(GHz) System Bus Frequency
(MHz)
Intel®Pentium 4
processor 1.3, 1.4, and 1.5 400
For the latest information on processors supported by the D850GB/D850GBAL
board, refer to the Intel web site at:
http://support.intel.com/support/motherboards/desktop
CAUTION
Failure to use an ATX12V power supply, or not connecting both additional
power supply leads to the D850GB or D850GBAL board may result in
damage to the desktop board.
For more information on the ATX12V power supply, refer to the
Intel Desktop Board D850GB/D850GBAL Product Guide on the
CD-ROM.
Memory Module Requirements
The board has four 2.5 V memory module sockets that support RIMMs
containing Direct Rambus DRAM (RDRAM) devices.
The board supports the following memory features:
x Maximum of 32 Direct Rambus devices per channel
x Memory configurations from 128 MB (minimum) to 2 GB (maximum)
using 128 Mbit or 256 Mbit technology
x PC600 or PC800 compliant RDRAM
x Single- or double-sided RIMM modules
x Serial Presence Detect (SPD) memory only
x ECC and non-ECC support
✏NOTE
For information about vendors that support these memory requirements,
refer to the D850GB link on this Intel web site:
http://support.intel.com/support/motherboards/desktop
Intel Desktop Board D850GB/D850GBAL 7
Quick Reference
Installation Steps
1 Installing the AGP Card Retention Mechanism
(D850GB only)
CAUTION
Install the AGP card retention mechanism (RM) only when using an
AGP card with a retention notch (A) as shown in the figure below. Use of
the RM with an unnotched card may impair video operation. See the
Intel Desktop Board D850GB/D850GBAL Product Guide on the CD-ROM
for RM removal instructions.
OM10592
A
8 Intel Desktop Board D50GB/D850GBAL
Quick Reference
The RM encloses the board’s AGP connector and stabilizes the AGP card.
Place the board (component side up) on a flat, supportive surface, preferably on
the anti-static bag in which the board was shipped in. Follow the steps outlined
below to attach the RM (A) to the AGP connector (B):
1 Locate the AGP connector (J5E1) on the board as shown below. Note
that the board’s silkscreen (C) indicates the correct final position of the
lever (D) on the RM.
OM11536
B
A
C
D
E
2 Position the RM over the AGP connector as shown below.
OM10111
3 Push the lever end of the RM in the direction of the arrow until the two
rearmost tabs (E) spread over the end of the AGP connector.
OM10180
4 Push the free end of the RM over the other end of the AGP connector and
press down evenly on both ends of the RM until all four tabs click
underneath the AGP connector. Do not apply unnecessary pressure to
avoid damaging the board.
OM10181
Intel Desktop Board D850GB/D850GBAL 9
Quick Reference
2 Installing the I/O Shield
The board comes with an I/O shield. When installed in the chassis, the shield
blocks radio frequency transmissions, necessary to pass emissions (EMI)
certification testing, protects internal components from dust and foreign objects,
and promotes correct airflow within the chassis.
Install the I/O shield before installing the board in the chassis. Place the shield
inside the chassis as shown in the following figure. Press the shield into place
so that it fits tightly and securely. If the shield doesn’t fit, obtain a properly-
sized shield from the chassis supplier.
OM11542
D850GB I/O Shield
OM11543
D850GBAL I/O Shield
10 Intel Desktop Board D50GB/D850GBAL
Quick Reference
3 Installing the Desktop Board
CAUTION
Failure to use an ATX12V power supply, or not connecting both additional
power supply leads to the D850GB or D850GBAL board may result in
damage to the desktop board.
For more information on the ATX12V power supply, refer to the
Intel Desktop Board D850GB/D850GBAL Product Guide on the CD-ROM.
✏NOTES
Make sure your chassis supports the Intel Pentium 4 processor. You can
determine this by verifying that the standoffs for the processor retention
mechanism are in the correct location on the chassis.
Do not install the four screws around the processor socket at this time.
Refer to your chassis manual for specific instructions on installing and removing
the board. Secure the board to the chassis standoffs using 10 screws. Insert the
screws in the mounting holes shown in the figure below.
OM11537
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