micronPC NF3400 User manual

1
The information in this document is subject to change without notice. Micronpc.com
makes no warranty of any kind with regard to this material, including, but not limited to,
theimpliedwarrantiesofmerchantabilityandfitnessforaparticularpurpose.
Micronpc.comshallnotbeliable for errors contained herein or for any damages,
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performance, or use of this material or the use or inability to use the product even if
advised of the possibility of such damages. Micronpc.com assumes no responsibility
for the use or reliability of its software on equipment that is not furnished by
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thismanual,the manufacturer and distributor assume no liability resulting from errors or
omissions in this manual, or from the use of the information contained herein.
This document contains proprietary information that is protected by copyright. All rights
arereserved.Nopartofthis document maybephotocopied, reproduced, ortranslated
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micronpc.com
900E.KarcherRoad
Nampa,Idaho83687
Microsoft,MS-DOS, andWindowsareregistered trademarksofMicrosoft Corporation.
VESA is a registered trademark of the Video Electronics StandardsAssociation.
Allotherbrand or product names appearing in this publication areusedforidentification
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Copyright (C) 1999, Intel Corporation, Inc. All Rights Reserved.
Copyright (C) 1999, Micronpc.com. All Rights Reserved.
Manualedition October, 1999.
Printed in the United States of America
While reasonable efforts have been made to ensure the accuracy of this manual,
the manufacturer and distributor assume no liability resulting from errors or
omissions in this manual, or from the use of the information contained herein.
P/N:MAS001594-00, 11-24-1999
JKK
Limitation of Liability
Trademarks and Copyright
Product Guide
NF3400
Introduction

2
This manual is designed to help Information Technology professionals and System
Engineerswho are responsible for installingand maintaining Network Server
systems.
We want to make this manual as useful as possible and welcome your comments.
You can send comments to: [email protected]. Our goal is to make your
experience with micronpc.com even better.
From The Editors...
FromTheEditors

3
This manual contains information to help you get the most from your server.
Whether you are a new or experienced computer user, you will benefit more from
this manual if you are familiar with its organization.
This section lists the special features of the server and available options,describes
the parts you should have received and provides step-by-step procedures for
setting up and starting the server.
This section outlines the major server components and lists detailed specifications
of the server.
This section explains how to unpack and set-up one or more NF3400s into a rack
configuration.
Chapter 1: Getting Started
Chapter 2: System Features
Chapter 4: Installation
Chapter 3: Connectors and
Indicators This section outlines how components are arranged in the chassis and provides
detailedpinoutsfor the Internal Headers and External Connectors.
About This
Manual
Appendices AppendixA:Regulatory Information
Appendix B: Safety Guidelines
AppendixC: Glossary
AppendixD:Abbreviations
Peripheral Manuals In addition to this manual, you will want to consult the manuals for the Operating
System and any Application software.
Index A comprehensive index is provided.

4
Manual Conventions
AboutThisManual
Note
Caution
Warning
Thefollowing conventions are used throughout this manual:
rBullets present lists of information or items.
1. Numbered procedures guide you...
2. ...through sequential steps.
Notes contain important information that is set off from the text. They will be
accompanied by the symbol to the left, and in italic print.
Cautionmessagesappear before procedures which, if notobserved,could result in
lossof data ordamage to equipment. Theywill be accompaniedby the symbolto
the left, and in italic print. Failure to heed these warning could negate the user
warranty.
Warning messages appear before procedures which, if not observed,will
result in loss of data or damage to equipment, and/or could result in physical
harm. They will be accompanied by the symbol to the left, and be in bold
print. Failure to heed these warning could negate the user warranty.

5
Table of
Contents
1. Getting Started
2. System Features
FromtheEditors ...................................................................2
AbouttheManual..................................................................3
...........................................................9
TheNF3400 ....................................................................9
UnpackingtheNF3400 ...................................................9
PersonalInventory ........................................................ 10
Heat, Cold, and Humidity ..............................................11
OperatingEnvironment ................................................. 12
Product Shipment .........................................................12
Technical Support ......................................................... 12
Problem Solving ........................................................... 12
Customer Service .........................................................13
Obtaining Account Information...................................... 13
ObtainingOrderStatus .................................................13
RefundsandReturns .................................................... 13
How to Contact Micronpc.com...................................... 14
..................................................... 15
Server Board Features.................................................. 15
BackPanelConnectors ................................................16
NICLEDs .....................................................................16
ConnectorandComponent Locations ........................... 17
FrontPanelControlsand indicators...............................18
Processor .............................................................. 19
System Memory..................................................... 19
HostBridge/MemoryController............................... 20
Peripherals
SuperI/OChip .......................................................20
Serial Ports ............................................................ 20
ParallelPort............................................................20
Add-inBoardSlots .................................................20
Video .....................................................................21
SCSIController ......................................................22
IDEController.........................................................22
NetworkController .................................................. 23
Keyboardand Mouse..............................................23
ACPI ......................................................................23
BaseboardManagement Controller ...............................24
EmergencyManagementPortConsole.........................25
Platform Event Paging ..................................................26
Security........................................................................ 26
SoftwareLocks ......................................................26
UsingPasswords ................................................... 27
SecureMode..........................................................27
Software Security Features ....................................28
ChassisDescription......................................................30
Physical Specifications.......................................... 30
FeatureDescriptions..................................................... 31
FrontBezel.............................................................31
I/OPanel................................................................31
CoolingSystem......................................................31
Security .................................................................31
PowerSupply ......................................................... 31
AdditionalPeripherals .............................................31
Fitting into the 19-Rack.................................................32
OpeningtheFrontAccess Panel................................... 32
RemovingtheSidePanel..............................................32
InstallingtheSide Panel ...............................................33
RemovingandInstallingaCoolingFan .........................33

6
TableofContents
RemovingandInstalling a 5.25-inch Device .................34
TheHardDriveModule .................................................35
BackPlaneJumper and Connector Locations ........ 35
Removing and Installing aHard Drive Device ......... 36
RemovingandInstallingtheSCSI Cable,Teminator,
and Fan Module......................................................37
................................................................39
ToolsandSupplies........................................................39
WarningsandCautions .................................................39
InstallingtheServer Board ...........................................40
RemovingtheServerBoard.......................................... 41
RemovingMemory........................................................42
InstallingMemory .........................................................42
RemovingaProcessor .................................................43
Warning andCautions.............................................44
Installing a Processor ...................................................45
ReplacingtheBattery ...................................................46
...............49
ConfigurationUtilities....................................................49
HotKeys.......................................................................50
PowerOnSelfTest(POST) ..........................................50
Using BIOS Setup ........................................................ 51
Starting Setup ..............................................................52
UsingtheSetup Menu ..................................................52
MainMenu.................................................................... 53
Primary / Secondary IDE Submenu........................54
KeyboardSubmenu ................................................ 55
ProcessorSubmenu...............................................55
AdvancedMenu............................................................56
PCIConfigurationSubmenu ................................... 57
IntegratedPeripheral Submenu...............................58
AdvancedChipsetControl ............................................58
SecurityMenu ..............................................................59
Server Menu .................................................................60
SystemManagementSubmenu .............................60
4. Configuration Software and Utilities
ServerManagementInformation Submenu.............61
ConsoleRedirection Submenu ............................... 62
PEPManagementSubmenu ..................................62
PEP Filter Submenu .............................................. 63
BootMenu.................................................................... 64
BootDevice Priority Submenu ...............................64
RemovableDevicesSubmenu ............................... 64
HardDrive Submenu .............................................. 64
Exit Menu ..................................................................... 65
Using the System Setup Utility (SSU) ..........................65
When to Run the SSU .................................................. 65
Setting-up to Run the SSU ........................................... 67
RunningtheSSU Locally .......................................67
RunningtheSSURemotely....................................67
Starting the SSU ..........................................................67
SSUMain Window ........................................................68
Customizing the SSU ...................................................69
ChangingtheInterfaceDefaultValues .......................... 69
Launching aTask ..........................................................70
ResourceConfigurationAdd-inWindow.........................70
Defining anISA Card ....................................................71
AddingandRemoving an ISA Card...............................71
ModifyingResources ....................................................72
SystemResourceUsage.............................................. 72
MultibootOptionsAdd-in ..............................................72
SecurityAdd-in............................................................. 73
To SettheUserPassword ......................................73
ToChange or Clear the UserPassword...................73
To SettheAdministrator Password.........................73
ToChange or Clear theAdmin Password ................73
Security Options........................................................... 73
SELManagerAdd-in.....................................................74
FRUManagerAdd-in.....................................................75
SDRManager Add-in ....................................................76
Exiting the SSU............................................................76
Platform Event Paging ..................................................77
UsingPlatformEvent Paging..................................77
EmergencyManagementPort(EMP)Console..............78
CommandMode ........................................................... 78
3. Upgrading

7
TableofContents
ConsoleRedirectMode .......................................... 78
EMP Console in Command State ........................... 79
EMP Console in Redirect State.............................. 79
EMP ConsoleRequirements ......................................... 80
Setting up the Server for the EMP ................................81
System Management Submenu ............................. 81
ConsoleRedirection Submenu ............................... 82
Main EMPConsole Window ..........................................82
EMPToolbar........................................................... 82
Status Bar.............................................................. 83
EMPConsoleMain Menu .............................................83
ServerControlOperations.............................................84
ConnectDialogScreen...........................................84
Power On/Off DialogScreen................................... 85
ResetDialogScreen ..............................................86
PhonebookDialogScreen ...................................... 87
ManagementPlug-ins
SELViewer...................................................................88
SELViewer Menu Options...................................... 88
SDRViewer .................................................................. 90
SDRViewerMenu Options .....................................90
FRUViewer ...................................................................91
FRUViewer MenuOptions...................................... 91
FRU / SDR Load Utility ................................................. 92
WhentoRun the FRU/SDR Load Utility ........................92
How to Use the FRU / SDR Load Utility ........................ 93
CommandLine Format ...........................................93
ParsingtheCommand Line .................................... 93
DisplayingUsageInformation................................. 93
Using Specified CFG Files ..................................... 94
ConfigurationFile ................................................... 94
FRUInformation ..................................................... 95
Data Record Fromthe SDR File ............................. 95
Updating the SDR .................................................. 95
Updatingthe FRU ...................................................95
UpdatingtheDMI FRU ........................................... 95
Cleaning Up andExiting ............................................... 95
PerformingtheBIOS Upgrade.......................................96
RecordtheCurrentBIOS .......................................96
ObtainingtheUpgradeUtility..................................96
CreatingaBootable Diskette..................................96
PerformingtheBIOS Upgrade ................................ 97
RecoveringtheBIOS....................................................98
ChangingtheBIOS Language....................................... 99
UsingtheFirmware Update Utility.................................99
RunningtheFirmwareUpdateUtility .............................99
Installing Video Drivers ............................................... 100
Running the SCSI Utility ............................................. 100
................................................... 101
Resetting the System ................................................. 101
Fault Resilient Booting ................................................ 101
Initial System Startup.................................................102
RunningNewApplications .......................................... 103
After the System has been Running ........................... 103
DiagnostincTesting..................................................... 104
Verifying Proper Operation of Key Systems.......... 105
Confirming Loading theOperating System ........... 105
Specific Problems and Corrective Actions ..................105
Power LED DoesNot Illuminate............................ 105
No Characters Appearon the Screen ................... 106
CharactersAre Distorted or Incorrect ................... 106
Cooling Fans Donot Rotate.................................. 107
FDD Activity LED Does Not Illuminate ................. 107
HDD Activity LED Does Not Illuminate................. 108
CD-ROM Activity LED Does Not Illuminate .......... 108
Cannot Connect to aServer ................................. 109
Problems with the Network................................... 109
Problems with Application Software ..................... 110
Error and InformationalMessages ........................ 103
5. Problem Solving

8
........................................... 113
ConnectorLocations................................................... 113
ATX Style Front PanelConnector ................................ 114
Main PowerConnector Pinout ..................................... 115
FanInterface .............................................................. 115
Server Board JumperLocations.................................. 116
Server Board JumperSummary ........................... 116
Changing Jumper SettingsProcedures ....................... 117
CMOSJumper ..................................................... 118
PasswordJumper................................................. 119
Recovery Boot Jumper......................................... 119
Boot Block Write Protect ......................................120
FRB Timer Enable Jumper ................................... 121
Chassis Intrusion Detection Jumper..................... 121
Server Board Installation Instructions ......................... 122
Ensure EMC ........................................................ 122
Host Computer andAccessory Certification......... 123
PowerSupply Overload ........................................ 123
Place Battery Marking onComputer ..................... 124
Use Only for Intended Applications............................. 124
Installation Precautions .............................................. 124
CurrentUsage ............................................................ 125
CalculatingPower Consumption ........................... 125
DCPower Usage Worksheet................................. 126
TotalCombined PowerWorksheet......................... 127
EquipmentLog ........................................................... 128
Appendix A: Regulatory Specifications ....................... 131
Appendix B: Safety Guidelines ................................... 134
Appendix C: Glossary ................................................. 136
Appendix D: Abbreviations.......................................... 146
............................................................................ 148
TableofContents
6. Technical Reference
Appendices
Index

9
Congratulations on the purchase of your Micron NetFRAME Series Server! Micron
Electronics, Inc. is proud to be your provider of high performance, quality server
products. With proper care and usage, your server will be a valuable asset to the
corporateNetwork.
Chapter 1
Getting Started
Unpacking the NF3400 The Server comes securely packaged in a sturdy shipping carton. Upon receiving
your Server, open the box and carefully remove the contents. If anything is missing
or damaged, please contact Micron Electronics immediately. All systems should
include the following items:
qTheNF3400Server
qAnAC power cord
qSoftwareandMicron Customer Resource Center CD and/or MRestore CD
qProductGuide
The NF3400
Itemsincluded may vary. Pleasecheckthe packing slip included withyour Server for
theexact items you should havereceived.
Note

10
Date of Purchase:
Telephone:
r 1-800-249-1178
Address: Micronpc.com
900 E. Karcher Road
Nampa, ID 83687
Micron E-mail address:
r server[email protected]
Micron Web site:
r http://support.micronpc.com
Serial Number:
CPU type:
Hard disk capacity:
Memorycapacity:
Personal Inventory
ChapterOne Getting Started
This Server system is designed for years of productive computing. Use this
section to keep notes about details of your purchase. Update this section when you
addnewoptions.

11
Find a spot for your server that’s not too hot, too cold or too damp. Overheating can
destroy computer components, so allow plenty of room for air to circulate around the
case. The server will generally run well wherever you’re comfortable. Extremes of
temperature and humidity can be challenging to the system’s parts.
Heat, Cold, and Humidity
Surge suppressors
ChapterOne Getting Started
Note
Warning
Thebest kind of back-uppower source to connectyour server to isa UPS
(UninterruptiblePowerSupply). The UPS should be connected toanAC Generator.
TheUPS will allow sufficienttime to transfer powersources and prevent Network
failure. Donot use inferior extension cords as thismay result in damageto your
server. Damageto the serverthat is directly caused byusing a different power source
willnotbe covered under warranty.
Caution
We strongly recommend using a high-quality, external surge suppressor. It will
shield your server from lightning strikes, surges, shorts, and other electrical
hazards.
If your server arrives in cold weather, do not apply power to it or the monitor until they
havebeen allowed to come toroom temperature.
Don’t expose the server to extreme cold or heat, don’t drop it, or spill fluids
into the case. This can destroy the server and void the warranty.

12
Operating Environment Youcan setup the server undera wide range of environmentalconditions. However,
to ensure long use and continued high performance, consider the following factors
forpermanently setting up your server:
rSet the server on a flat, stable surface. To prevent damage to the hard disk
drive, avoid using the server where it will be exposed to strong vibration.
rPlace the server away from electromagnetic pulses (EMP) or radio
frequency (RF) interference (for example, television/stereo sets, copying
machines,andair conditioners).
rAvoid using or storing the server where it will be exposed to extreme
temperatures. In particular, do not leave the server in direct sunlight,
over a radiator, or near a heat source for any period of time. High
temperaturescan damage the circuitry.
rAvoid exposing the server to high or low humidity. Extreme humidity can
contribute to hard disk drive failure.
rDo not place the server where people can step on or trip over the power
cord.
rThe openings on the server are provided to protect the server from
overheating. To ensure reliable operation, leave about 10 cm (4 inches)
around the server for unobstructed air circulation. Avoid exposing the
server to dust or smoke.
ChapterOne Getting Started
If you have questions about the way the unit functions or about any technical
hardwarespecifications, Micron’sawardwinning Technical Support team isready to
help you. Support is available 24-hours a day, seven days a week. Contact us by
visiting our web site at http://www.micronpc.com or telephone us toll-free at 1-800-
249-1178. Please refer to the Micron Product guides included with the system for
additional solutions to common setup problems, configuration and technical
information.
Refer to the documents concerning your specific software application or open:
1. The Micron Web site at support.micronpc.com
2. When contacting Micron Technical Support through an E-Mail message or
toll-free call, have your customer number, serial number, order number, or
casenumber ready.
Important Information About
the Product Shipment
Technical Support
Problem Solving

13
ChapterOne Getting Started
3. To help us solve the problem, we will need detailed information describing
the problem, such as the displayed on screen error messages, and any
trouble-shootingsteps you have taken.
4. A list of any hardware or software added after the purchase.
5. Please be stationed at the unit when you call. With your assistance, we will
complete the troubleshooting steps necessary to solve the problem.
Micron Customer Service can help you with questions on order status, credit,
refunds or returns by E-Mail at customer[email protected] or call toll-free
1-888-Micron-2(1-888-642-7662)6am-8pmMTMonday through Friday; 7am-5pm MT
Saturday.
1. Please provide your ordernumber, customer numberortelephone number to
a Micron Customer Service representative.
2. Please provide your purchase ordernumber, Return Merchandise
Authorization(RMA) number or case number, if applicable.
1. Access our Web Site at www.micronpc.com and visit the Service and
Support page for online order status.
2. Telephone our CustomerService department toll-free and wait forthe
automatedorder status prompt with your order referencenumber.
3. Telephone our CustomerService department to speak with arepresentative.
Pleasehave your order reference number, customer number, serial number,
purchaseorder number, casenumber, or the mainbusiness telephone
numberunder which your order was placed.
1. Contact our Customer Service department by telephone or E-Mail and
requesta Return MerchandiseAuthorization (RMA) numberor a part
request number within thirty (30) days from the date your order was
shipped.
2. Haveyour order number, customer number,serial number, or case number
ready.
Customer Service
To obtain Accounting
information
To obtain Order Status
Forinformationregarding
Refunds and Returns

14
ChapterOne Getting Started
Micron PC: 1-877-894-5693
Micron Commercial Systems: 1-877-894-5694
Micron Government Systems: 1-877-894-5695
(Outside the U.S. or Canada) 1-208-893-3434
MicronNetFRAME Server Support 1-800-249-1178
CustomerService: Customer[email protected]
Micron PC: [email protected]
Micron Commercial Systems: [email protected]
Micron Government Systems: [email protected]
Micron NetFRAME Server Support: server[email protected]
How To Contact
Micronpc.com
Technical Support and
Customer Service:
Forparts,peripherals or upgrades, telephone MicronAdditions at 1-888-634-8807.
Micronpc.com wants to make this product guide as useful as possible and
welcomes your suggestions and comments. Please provide the title, part number
and page number of the document and E-Mail your suggestions to:
[email protected].
Toll-Free Telephone Numbers
E-Mail Addresses

15
Chapter 2
System Features
Server Board Features
Feature Description
Processor Up to two Intel Pentium®II or Pentium®III processors (with 100 MHz
system bus) operating at 1.8 V to 3.5 V. The server board’s voltage
regulator is automatically programmed by the processor’s VID pins to
provide the required voltage.
Memory (DRAM) Four 72-bit sockets for 168-pin, gold contact, 100 MHz, ECC or non-ECC,
registered or unbuffered, SDRAM dual inline memory modules (DIMM).
PCI bus Four standard PCI (PCI-33/32-bit) expansion slots for add-in boards.
1x32-bit PCI bus. Embedded devices: Network Interface Controller (NIC)
and SCSI controller.
Two PCI-66 MHz 32-bit 5 V expansion slots (backward compatible to
PCI-33 MHz 32-bit).
ISA bus One ISA expansion slot for an add-in board. Embedded PC-compatible
support (serial, parallel, mouse, keyboard, diskette, and Plug and Play
features).
Server Management Thermal / voltage monitoring and error handling.
Real time clock/calendar (RTC).
Front panel controls and indicators (LEDs).
System Setup Utility (SSU).
Basic Input/Output System (BIOS), Power On Self Test (POST) and Setup
stored in flash memory.
Graphics Integrated onboard Cirrus Logic®CL-GD5480 super video graphics array
(SVGA) controller. Embedded: 2 MB of video memory.
SCSI Adaptec®AIC-7896, supporting onboard Ultra2 (LVD) wide and Ultra-
wide SCSI interfaces. Support for the Adaptec ARO-1130U2 RAID
Port
®III card is built into PCI slot 4.
Network Integrated onboard NIC, an Intel®82559 single chip PCI LAN controller
for 10 or 100 Mbps TX Fast Ethernet networks. RJ-45 Ethernet connector
and indicator LEDs at I/O back panel.
System I/O PS/2-compatible keyboard and mouse ports, 6-pin DIN.
Advanced parallel port, supporting enhanced parallel port (EPP) level 1.7
and 1.9, enhanced capablities port (ECP) compatible 25-pin.
VGA video port, 15-pin. Two serial ports, 9-pin.
RJ-45 Ethernet port. Two USB ports.
Form Factor Server ATX form factor, 12 x 13 inches, ATX 2.01 compliant I/O.

16
ChapterTwo System Features
Back Panel Connectors
NIC LEDs
A. Mouse connector
B. Keyboard connector
C. Parallel Port connector
D. Serial Port connectors
E. Network connector
F. Green NIC LED
G. Orange NIC LED
H. USB connectors
I. Video connector
NIC LED Color If it’s on If it’s blinking If it’s off
Orange NA
Green Not linked to network.
100 Mbps network
connection. 10 Mbps network connection.
Linked to network,
no network traffic. Linked to network,
sending or
receiving data.

17
ChapterTwo System Features
Server Board Connector and
Component Locations
A. Fansink connector 2
B. Secondary processor
C. Fansink connector 1
D. Primary processor
E. DIMM slots
F. Main power connector
G. ATX Aux power connector
H. Fan connector FAN2A
I. Floppy connector
J. IDE connectors
K. ATX front panel connector
L. Front panel connector, 16 pin
M. Battery
Y. ISA connector
Z. Chassis intrusion connector
AA. PCI-33/32 connectors
BB. PCI-66/32 connectors
CC. Fan connector FAN2B
DD. Video connector
EE. USB connectors
FF. NIC connector
GG Serial port connector (default COM 1)
HH. Parallel port connector
II. Serial port connector (default COM 2)
JJ. Mouse/keyboard connectors
N. Isolated Server Management (ISOL)
IMB (Intelligent Management Bus) connector
O. Jumper block
P. Jumper block
Q. Fan connector 1
R. Ultra Wide SCSI connector
S. Server monitor module (SMM) connector
T. External Wake on LAN†connector
U. Ultra2/LVDS SCSI connector
V. Hard drive LED connector
W. Adaptec ARO-1130U2 RAID
Port III
connector/PCI slot 4
X. Intelligent Chassis Management Bus (ICMB)
header

18
ChapterTwo System Features
Front Panel Controls and LED
Indicators
Power On/Off Switch
Power On LED (Green)
Disk Activity LED (Green)
Failure LED (Yellow)
Reset Switch
NMI Switch

19
Note
ChapterTwo System Features
Processor Each Pentium II or Pentium III processor is packaged in a cartridge. The cartridge
includes the processor core with an integrated 16 KB primary (L1) cache, the
secondary (L2) cache, and a back cover.
The processor implements the MMX™technology and maintains full backward
compatibility with the 8086, 80286, Intel386TM, Intel486TM, Pentium, Pentium Pro and
previous Pentium II processors. The processor’s numeric coprocessor significantly
increases the speed of floating point operations and complies with ANSI/IEEE
standard754-1985.
Each processor cartridge connects to the server board through a 242-pin edge
connector. The cartridge is secured by a retention mechanism attached to the
server board. Depending on configuration, your server may have one or two
processors.
The processor external interface is MP (Multi-Processor) ready and operates at
100 MHz. The processor contains a localAPIC (Advanced Programmable Interrupt
Controller)section for interrupt handling inMP and UP (Uni-Processor)
environments.
The second level cache is located on the substrate of the S.E.C. cartridge. The
cache includes burst pipelined synchronous static RAM (BSRAM). The L2 cache is
offered in 512 KB configurations only, with error correcting code (ECC) that operates
at half the core clock rate.
Ifyou install aprocessor that is 550 MHz, and youuse the servermanagement
feature board, you must run the FRU / SDR update utility.
System Memory Only 100 MHz PC/100 ECC or Non-ECC SDRAM is supported by the server board.
Memory is partitioned as four banks of SDRAM DIMMs, each providing 72-bits of
noninterleavedmemory (64-bit main memory plus ECC):
qInstall from 64 MB to 2 GB of memory, using registered DIMMs.
qInstall from 32 MB to 2 GB of memory, using unbuffered DIMMs.
Memory should be added in order from slot 1 to slot 4.
Donot mix registered and unbufferedmemory. Non-ECC memory maybe installed
butECCmemory is recommended in a serverenvironment. MixingNon-ECC
memoryand ECC memory causesallECC features to bedisabled.
Note
The controller automatically detects, sizes, and initializes the memory array
depending on the type, size and speed of the installed DIMMs. It reports memory
size and allocation to the server via configuration registers.

20
ChapterTwo System Features
UseDIMMs that have been tested for compatibilitywith the server board. Contact
yourMicronsales representative or dealer fora current list of approved memory
modules.
Note
440GX Host Bridge / Memory
Controller The L440GX+ is designed around the Intel®82440GXAGPSet (440GX). This
device provides 100 MHz processor host bus interface support, DRAM controller,
PCI bus interface, AGP interface (used on L440GX+ for PCI-66/5V), and power
management functions. The host bus/memory interface in the 440GX is optimized
for 100 MHz operation, using 100 MHz SDRAM main memory. The PCI interface is
PCI 2.1-compliant, providing a 33 MHz / 5V signaling environment for embedded
controllers and slots in the single PCI segment on L440GX+. The 440GX memory
controller supports up to 2 GB of ECC or Non-ECC memory, using PC/100
compliant Synchronous DRAM (SDRAM) devices on DIMM plug-in modules. ECC
can detect and correct single-bit errors, and detect multiple-bit errors.
Peripherals
Super I/O Chip The National®87309 device supports two serial ports, one parallel port, diskette
drive, PS/2-compatible keyboard and mouse. The server board provides a
connector interface for each port.
Serial Ports Each serial port can be set to one of four different COMx ports and can be enabled
separately. Whenenabled,each port can be programmed to generate edge or level
sensitive interrupts. When disabled, serial port interrupts are available to add-in
boards.
Parallel Port The87309 provides one IEEE 1284-compatible25-pin bidirectional EPP (supporting
levels 1.7 and 1.9). BIOS programming of the 87309 registers enable the parallel
port and determine the port address and interrupt. ECPmode is supported with two
possible DMAchannels. When disabled, the interrupt is available to add-in boards.
Add-in Board Slots The server board has one full-length ISAbus connector. ISAfeatures:
qBus speed up to 8.33 MHz
q16-bitmemoryaddressing
qTypeA transfers at 5.33 Mbps
qType B transfers at 8 Mbps
q8 or 16-bit data transfers
qPlug and Play ready