CSS Labs MB-P201 User Manual

T echnical Refer ence

MB-P201

7-Slot Pentium

®

II

Motherboard with Intel 440 LX Chipset

1641 McGaw A venue

Irvine, California 92614

P/N MB-P201-DOC Revision 1, March 1998

Features

• 7 bus slots: 1 ISA, 4 PCI slots, 1 ISA & 1 PCI slot
shared

• 1 Accelerated Graphics Port (AGP). 1 Pentium

®

II

processor slot

• Intel Pentium

®

II processor upgradeable through 233,

266 MHz, 300 MHz and 333 MHz

• Intel 440LX chipset

• System memory upgradeable from 32 MB to 1 GB EDO
or up to 512 MB SDRAM using ‘x 64’ or ‘x 72’ DIMM.
Processor-facilitated ECC memory with ‘x 72’ DIMM

• Processor available with either 256 KB or 512 KB cache

• PCI 2.1 compliant PCI/ISA bus architectures

• Supports Desktop Management Interface (DMI) at BIOS
level, via a DMI configuration utility

• BIOS-facilitated timers for Doze, Standby & Suspend

Modes

• 2 Standard PS/2 keyboard and mouse connectors

• On-board PCI bus master EIDE controller (up to 4 EIDE
drives & 2 floppy drives). Two channels support PIO
modes 3 & 4. 14 MB/sec bus master IDE. Also supports
“Ultra33” synchronous DMA mode transfer (33 MB/sec)

• On-board I/O: 2 serial ports & 1 parallel port; 2 on-board
Universal Serial Bus (USB) ports

• On-board PS/2 mouse & keyboard ports

MB-P201

iii

FCC Standards

The FCC (Federal Communications Commission) restricts
the amount of radiation and radio frequency emissions
coming from computing equipment.

Note: This equipment has been tested and found to comply
with the limits for a Class B digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause
harmful interference to radioor television reception, which
can be determined by turning the equipment off and on, the
use is encouraged to try to correct the interference by one
or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and
receiver.

• Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician
for help.

CSS Labs is not responsible for any radio or television
interference caused by unauthorized modifications to this
equipment. Operation with non-certified peripherals is likely
to result in interference to radio and TV reception.

iv MB-P201

T o ensure compliance to FCC non-interference regulations,
peripherals attached to this device require shielded I/O cables.

NOTICE: The use of a non-shielded I/O cable with this
device is in violation of U.S. Federal law and will not allow
the device to meet the maximum emission limits.

CAUTION: Any changes or modifications not expressly
approved by the grantee of this device could void the user’s
authority to operate the equipment.

Note: If you have purchased the miniature tower system,
please note the following...

W ARNING: The system is to be installed on desk or table
tops only. The unit will become unstable if operated as a floor
standing unit and unintentional force is applied to the top of
the unit.

Turn the unit of f and unplug the power cord before you
open the cover to install any cards or peripheral devices.

MB-P201

v

WARNING

CAUTION: THERE IS A DANGER OF EXPLOSION IF
THE BATTERY IS INCORRECTLY REPLACED.
REPLACE ONLY WITH THE SAME OR EQUIVALENT
TYPE RECOMMENDED BY THE MANUFACTURER.
DISCARD USED BATTERIES ACCORDING TO THE
MANUFACTURER’S INSTRUCTIONS.

ATTENTION:IL Y A DANGER D’EXPLOSION S’IL Y A
REMPLACEMENT INCORRECT DE LA BATTERRIE.
REMPLACER UNIQUEMENT AVEC UNE BATTERI DU
MEME TYPE OU D’UN TYPE RECOMMENDE PAR LE
CONSTRUCTEUR. ETTERAU REBUT LES
BATTERRIES USAGEES CONFORMEMANT AUX
INSTRUCTIONS DU FABRICATANT.

vi MB-P201

NOTICE

The information within this manual is subject to change
without notice.

CSS Laboratories, Incorporated shall not be held liable for
technical or editorial errors or omissions contained in herein;
nor for incidental or consequential damages resulting from the
furnishing, performance or use of this material.

No part of this publication may be reproduced, stored in a
retrieval system, or transmitted, in any form or by any means,
mechanical, photocopying, recording or otherwise, without
the prior written permission of CSS Laboratories, Inc.

Product names mentioned herein are for identification
purposes only, and may be trademarks and/or registered
trademarks of their respective companies.

© 1998 CSS Laboratories, Inc. All rights reserved.

P/N MB-P201-DOC Revision 1 March, 1998

MB-P201

vii

Table of Contents

Overview ............................................................................... 1

The Microprocessor .............................................................. 2

The Motherboard .................................................................. 2

Cache Memory ............................................................... 2

Expansion Slots.............................................................. 2

Accelerated Graphics Port Slot ...................................... 3

Voltage Regulators.......................................................... 3

Motherboard Connectors ...................................................... 4

Speaker J28 ................................................................... 5

Reset Switch J26 .......................................................... 5

IDE Hard Drive LED J27 ............................................. 5

Front Panel Connector JP31.......................................... 6

PS/2 Keyboard Connector J1 ........................................ 6

PS/2 Mouse Connector J6 ............................................. 6

Universal Serial Bus Connectors J5 .............................. 7

Keylock LED Connector J29......................................... 7

Primary IDE J20; Secondary IDE J21 ......................... 8

Parallel Port J7.............................................................. 8

Serial Port 1 (COM1) J2; Serial Port 2 (COM2) J3 ... 9

Floppy Drive Connector J23 ....................................... 10

Fan Connectors JP7, JP16........................................... 10

Chassis Fan Connector JP4..........................................11

ATX Power Supply Connector J9 ................................1 1

On-board CMOS Battery Slot J8.................................11

External CMOS Battery Connector JP2...................... 12

Infrared Connector JP7 ............................................... 12

ON/OFF Switch Connector J25 .................................. 12

W ake On LAN Connector J50..................................... 13

viii MB-P201

Motherboard Jumpers ......................................................... 14

Processor Bus Clock Speed JP18, JP20, JP21, JP22 .. 14

Processor Speed Ratio JP10, JP9, JP11, JP12 ............ 15

Super I/O Address Selector JP8 .................................. 15

CMOS Battery Selector J28........................................ 16

Manual EXTSMI JP2 ................................................. 16

SMI Source Chip Select JP5 ....................................... 17

System Memory .................................................................. 18

Installing and Removing DIMM................................... 18

System Memory Configuration .................................... 19

System Interrupts ................................................................ 23

Direct Memory Access........................................................ 24

The I/O Address Map ......................................................... 25

Configuration Utilities ........................................................ 26

Overview ...................................................................... 26

CMOS Setup Utility..................................................... 28

The Setup Procedure .................................................... 28

BIOS Features Setup.................................................... 31

Chipset Features Setup................................................. 32

Power Management Setup ............................................ 33

DOS 6.2TM Advanced Power Program ......................... 37

TM

Windows 3.1
Windows 95

Advanced Power Management ............ 37

TM

Advanced Power Management............. 38

PnP/PCI Configuration Setup ...................................... 39

Integrated Peripherals Configuration Setup.................. 40

MB-P201

ix

Overview

This document describes the technical features of the
motherboard. The topics include:

• The Microprocessor - description of the features of the

Pentium II microprocessor

• Motherboard - illustration and brief description of the

motherboard

• Connectors - description of connector locations and

functions on the motherboard

• Jumpers - detailed description of the jumpers used to

configure the motherboard

• System Memory - detailed description of system

memory and how to add memory

• System Memory Map - listing of traditional address

assignments for system memory

• Configuration Utilities - description and instructions for

using the utility to configure the board’s BIOS

MB-P201

1

The Microprocessor

The Pentium II microprocessor contains all the features
of the Pentium, Pentium Pro and 80486 processors, and is
100% compatible with 8086/88, 80286, and 80386 DX and
SX microprocessors. In addition, the Pentium II features:

• Dual Independent Bus Architecture allowing access to

data from either bus simultaneously or in parallel

• Dynamic Execution with Multiple Branch Prediction,

Data Flow Analysis and Speculative Execution

• Intel MMX multimedia technology

It is available in a variety of speeds, from 233 MHz through
333 MHz. For additional information, contact your
authorized CSS Laboratories representative; or visit Intel’ s
web site.

The Motherboard

Cache Memory

The processor comes with 32 KB of L1 cache, and 512 KB
of internal L2 cache.

Expansion Slots

There are a total of seven slots on the motherboard: one ISA
slot, four PCI slots; 1 ISA and 1 PCI are shared, and one
Accelerated Graphics Port (AGP).

2 MB-P201

Accelerated Graphics Port Slot

The motherboard provides one accelerated graphics port
(AGP), which is a special bus platform that enables high
performance graphics capabilities.The AGP provides
dedicated pipelined access to main memory and faster
transfer rates. The AGP also enables the use of main
memory.

V oltage Regulators

The board comes with a voltage regulator, making the board
compatible with the full line of processors.

PS/2

COM 1COM 2

J7

1

POWER CONNECTOR

J2

USB 1
USB 2

J9

KB/MOUSE

J5

JP4
JP5
JP6

1
1
1

J4

JP1

1 1
1

JP3

JP2

J8

1

JP9
JP10

JP11
JP12

JP8

1
1
1
1

VOLTAGE
REGULATOR

LPT

J3

1

1

JP7

JP13

1

J50

J1

J6

ISA

ISA

J17 J16

JP19

CMOS

1

1
1
1

J31

1

J26
J27
J28
J29

MB-P201

PCI

PCI

PCI

PCI

J12 J14 J13 J15 J11

1

1

J25

1

D20

1

1

1

FLOPPY DRIVE

SECONDARY IDE

Figure 1: The Motherboard

1

PCI

JP15

1

Accelerated Graphics Port

AGP

JP18
JP20

JP21

JP22

1
1
1
1
1

JP23

PRIMARY IDE

JP14

Pentium II Slot

JP17

1

J19 DIMM0
J22

DIMM1

J24

DIMM2

J30

DIMM3

VOLTAGE
REGULATOR

JP16

1

3

Motherboard Connectors

Description Connector

J28 Speaker connector
J26 Reset switch connector
J27 IDE hard drive LED
JP23 Extra IDE hard drive LED
JP31 CSS Front panel connector
J1 PS/2 keyboard connector
J6 PS/2 mouse connector
J5 Universal serial bus 1 & 2 connectors
J29 Keylock
J20 Primary IDE connector
J21 Secondary IDE connector
J7 Parallel port
J2, J3 Serial ports 1 & 2
J23 Floppy drive connector
J9 Power supply connector
JP7, JP16 Processor fan connectors
JP4 Chassis fan connector
J8 On-board CMOS battery slot
JP2 External CMOS battery connector
JP19 Infrared device connector
J25 ON/OFF switch
J50 W ake On LAN Connector

4 MB-P201

Speaker J28

J28 connects the computer’s speaker to the motherboard.

Pin Assignment Pin Assignment

1 Speaker 3 Gnd
2 Not used 4 VCC

Reset Switch J26

The reset button on the front panel lets you perform a
“cold boot”, without turning the system off.

Pin Assignment Pin Assignment

1 Reset 3 Not used
2 Ground 4 Not used

IDE Hard Drive LED J27

J27 connects a hard drive access LED to the front
panel. It lights when the drive is accessed.

Pin Assignment
1 VCC
2 HDD Act (-)
3 HDD Act (-)
4 VCC

MB-P201

5

Front Panel Connector JP31

This 10-pin connector interfaces between the system board
and the control panel on the front of the system case.

Pin Assignment Pin Assignment

1 Ground 6 Ground
2 Power LED 7 Green LED
3 IDE Power LED 8 Keylock
4 Not used 9 Power LED
5 IDE LED 10 Reset

PS/2 Keyboard Connector J1; PS/2 Mouse Connector J6

These 10-pin connectors are in a stacked configuration. The
keyboard connector is on the bottom.

Universal Serial Bus Connectors J5

The motherboard provides two 4-pin universal serial bus
connectors (USB).

Pin Assignment Pin Assignment

1 VCC 3 Data +
2 Data - 4 Ground

Keylock LED Connector J29

J29 attaches to the chassis’ keylock and power LEDs.

Pin Assignment Pin Assignment

1 Power LED 4 Keylock
2 Not used 5 Ground
3 Ground

6 MB-P201

Primary EIDE J20; Secondary EIDE J21

J20 connects the primary on-board PCI EIDE controller to
the primary hard drive. J21 connects the secondary on-board
PCI EIDE controller to the secondary hard drive. Pin 1 is
marked.

Pin Assignment Pin Assignment

1 Reset IDE 2 Ground
3 Host Data 7 4 Host Data 8
5 Host Data 6 6 Host Data 9
7 Host Data 5 8 Host Data 10
9 Host Data 4 10 Host Data 11
11 Host Data 3 12 Host Data 12
13 Host Data 2 14 Host Data 13
15 Host Data 1 16 Host Data 14
17 Host Data 0 18 Host Data 15
19 Ground 20 Key
21 DDRQ (DDRQ1) 22 Ground
23 I/O Write # 24 Ground
25 I/O Read# 26 Ground
27 IOCHRD 28 +5V pull-up
29 DDACK0(DDACK1)# 30 Ground
31 IRQ14 (IRQ15) 32 Reserved
33 Addr 1 34 Reserved
35 Addr0 36 Addr2
37 Chip Select 1P (1S)# 38 Chip select (3P 3S)
39 Activity # 40 Ground

MB-P201

7

Parallel Port J7

J7 provides the connection for the parallel port.

Pin Assignment P in Assignment

1 STROBE# 14 AUTOFD#
2 DATA BIT 0 15 FAULT#
3 DATA BIT 1 16 PINIT#
4 DATA BIT 2 17 SLCT IN#
5 DATA BIT 3 18 Ground
6 DATA BIT 4 19 Ground
7 DATA BIT 5 20 Ground
8 DATA BIT 6 21 Ground
9 DATA BIT 7 22 Ground
10 ACK# 23 Ground
11 BUSY 24 Ground
12 PEERROR 25 Ground
13 SLCT 26 Ground

Serial Port 1 (COM1) J2; Serial Port 2 (COM2) J3

J2 provides the connection for serial port 1 (COM 1). J3
provides the connection for serial port 2 (COM2).

Pin Assignment Pin Assignment

1 DCD 6 DSR
2 TXD 7 RTS
3 RXD 8 CTS
4 DTR 9 RI
5 Ground

8 MB-P201

Floppy Drive Connector J23

J23 connects the floppy drive to the controller provided on
the motherboard.

Pin Assignment Pin Assignment

1 Ground 2 DENSEL
3 Ground 4 TP
5 Key 6 FDENIN#
7 Ground 8 FDINDX#
9 Ground 10 FDM00#
11 Ground 12 FDDS1#
13 Ground 14 FDDS01#
15 Ground 16 FDM01#
17 MSEN1 18 FDDIR#
19 Ground 20 FDSTEP#
21 Ground 22 FDWD#
23 Ground 24 FDWE#
25 Ground 26 FDTRK0#
27 MSEN0 28 FDWPD#
29 Ground 30 FDRDA T A#
31 Ground 32 FDRHEAD#
33 Ground 34 DSKCHG#

Fan Connectors JP7, JP16

The processor fan provides extra cooling for the powerful
new Pentium II processors.

Pin Assignment

1 12 volt
2 Ground

MB-P201

9

Chassis Fan Connector JP4

Pin Assignment

1 12 volt
2 Ground

ATX Power Supply Connector J9

The power connector attaches the motherboard to the main
power supply .

Pin Assignment Pin Assignment

1 3.3 Vdc 11 3.3 Vdc
2 3.3 Vdc 12 -12 Vdc
3 Ground 13 Ground
4 +5 Vdc 14 PS On
5 Ground 15 Ground
6 +5 Vdc 16 Ground
7 Ground 17 Ground
8 PWRGD 18 -5 Vdc
9 5 VSB 19 +5 Vdc
10 +12 Vdc 20 +5 Vdc

On-board CMOS Battery Slot J8

The motherboard can be configured with an on-board battery
cell. J8 provides the socket.

External CMOS Battery Connector JP2

The motherboard can be configured with an external CMOS
battery.

10 MB-P201

Pin Assignment

1 Ground
2 Not used
3 Key
4 +6V

Infrared Connector JP7

JP7 connects to an optional infrared add-in controller.
Infrared controllers can act as ports for a number of
peripheral devices including mouse, printer and keyboard.

Pin Assignment

1 Transmitting
2 Receive 1
3 Receive 2
4 Ground

ON/OFF Switch Connector J25

The chassis’ power ON/OFF switch connects to the
motherboard through J25. The ON/OFF switch can be
configured, through the BIOS, to provide either instant ON/
OFF or Delayed ON/OFF capabilities.

Delayed ON/OFF lets you use the ON/OFF switch to place
the system in Suspend Mode. Simply press the switch quickly
and release. To power down the system with, press and hold
the switch for four seconds. Refer to the Configuration
Utilities section, Chipset Featur es subsection.

MB-P201

11

Wake On LAN Connector J50

J50 connects to an installed LAN card that provides “Wake
On LAN” output. LAN activity causes the system to wake
the low power Sleep Mode

Pin Assignment

1 +5 volt standby
2 Ground
3 Not used

12 MB-P201

Motherboard Jumpers

The motherboard’ s jumpers are pre-configured at the factory.
Read the following section carefully , before configuring your
system. The motherboard has the following jumpers:

Jumper Description

JP18, JP20 Processor bus clock speed
JP21, JP22
JP10, JP9 Processor speed ratio

JP11, JP12
JP5 Super I/O Address Selector
JP5 SMI source chip select
JP14 Test jumper (default 2-3)
JP3, D20 Test jumper (default OUT)
JP1 Test jumper (default OUT)

Processor Bus Clock Speed JP18, JP20, JP21, JP22

Pentium II processors are designed with one of two bus
clock speeds. The bus clock speed is always a fraction of
the processor’s internal speed. The table on page 14 will
help you determine the correct setting for your system.

Processor JP18 JP20 JP21 JP22
Bus Clock

66 MHz 1-2 1-2 1-2 1-2
60 MHz 1-2 1-2 2-3 1-2

MB-P201

13

Processor Speed Ratio JP10, JP9, JP11, JP12

The Pentium II uses a clock multiplier to run faster than the
processor bus. The jumpers match the installed processor’s
speed with the motherboard’s processor speed.

Processor JP10 JP9 JP11 JP12
Speed Ratio

3x IN IN OUT IN

3.5x IN IN OUT OUT
4x IN OUT IN IN

4.5x IN OU T IN OUT
5x IN OUT IN OUT

The following table matches processor speed, processor clock
and the motherboard’ s processor bus speed.

Processor Clock Ratio Processor
T ype/Speed Bus Speed

266 MHz 4x 66 MHz
300 MHz 4.5x 66 MHz

333 MHz 5x 66 MHz

Super I/O Address Selector JP8

JP8 lets a technician select a different address within the
BIOS for the on-board Super I/O in order to perform certain
tests The default setting is jumper installed.

CMOS Battery Selector J4

J4 indicates which type of CMOS battery is used. The
motherboard can be configured with an on-board cell-type
battery, or an external lithium battery.

14 MB-P201

Battery Type JP4

On-board cell IN
External battery OUT

Manual EXTSMI JP15

The manual external system management interrupt (SMI)
jumper allows a technician to force the system into sleep
mode. This procedure is sometimes used in specific system
testing.

Manual EXTSMI JP15

Forced Sleep IN
Normal (default) OUT

SMI Source Chip Select JP5

JP5 selects the chip within the motherboard’s chipset to
provide the SMI signal.

Source Chip JP5

I/O APIC 1-2
PIIX4 (default) 2-3

MB-P201

15

System Memory

The motherboard uses DIMM memory. DIMM is available
in 64-pin or 72-pin, where the 72-pin DIMM provides error
correcting code (ECC).

Up to 1 GB Extended Data Out (EDO) or up to 512 MB
Synchronous DRAM (SDRAM) are supported.

Memory uses symmetrical and asymmetrical addressing.
Single and double density DIMMS are supported

There are four banks available for memory upgrades. The
board supports DIMM in the following combinations:

1M x 64/72 = 8 MB/bank 8M x 64/72 = 64 MB/bank
2M x 64/72 = 16 MB/bank 16M x 64/72= 128 MB/bank
4M x 64/72 = 32 MB/bank 32M x 64/72= 256 MB/bank

Installing and Removing DIMM

Read these instructions completely before installing or
removing DIMMs. The DIMM is held by plastic press-clips
on both sides of the slot.

Installing DIMM

1) Hold the DIMM so that the gold tab is pointing toward the
slot. The DIMM is keyed so that it will only snap into the
slot when positioned correctly.

2) Press one end of the DIMM until it inserts and its press­clip snaps into place.

3) Press the other end of the DIMM until it inserts and its
press-clip snaps into place.

16 MB-P201

Removing DIMM

1) Pull both press-clips simultaneously, until the DIMM pops
up from its slot.

The following pages provide a table with all the possible
memory configurations for the MB-P201.

MB-P201

17

System Memory Configuration

RA M Bank 0 Bank 1 Bank 2 Bank 3

8 MB 1M x 64/72
16 MB 1M x 64/72 1M x 64/72
16 MB 2M x 64/72
24 MB 1M x 64/72 1M x 64/72 1M x 64/72
24 MB 1M x 64/72 2M x 64/72
32 MB 1M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
32 MB 2M x 64/72 2M x 64/72
32 MB 4M x 64/72
32 MB 2M x 64/72 1M x 64/72 1M x 64/72
32 MB 2M x 64/72 2M x 64/72
40 MB 1M x 64/72 2M x 64/72 2M x 64/72
40 MB 1M x 64/72 4M x 64/72
40 MB 2M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
48 MB 4M x 64/72 1M x 64/72 1M x 64/72
48 MB 2M x 64/72 2M x 64/72 2M x 64/72
48 MB 2M x 64/72 4M x 64/72
48 MB 4M x 64/72 1M x 64/72 1M x 64/72
48 MB 4M x 64/72 2M x 64/72
56 MB 1M x 64/72 2M x 64/72 2M x 64/72 2M x 64/72
56 MB 4M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
64 MB 2M x 64/72 2M x 64/72 2M x 64/72 2M x 64/72
64 MB 8M x 64/72
64 MB 4M x 64/72 4M x 64/72
64 MB 4M x 64/72 2M x 64/72 2M x 64/72
64 MB 4M x 64/72 4M x 64/72
72 MB 8M x 64/72 1M x 64/72
72 MB 1M x 64/72 4M x 64/72 4M x 64/72
80 MB 2M x 64/72 8M x 64/72
80 MB 2M x 64/72 4M x 64/72 4M x 64/72
80 MB 4M x 64/72 2M x 64/72 2M x 64/72 2M x 64/72
80 MB 8M x 64/72 1M x 64/72 1M x 64/72

18 MB-P201

RAM Bank 0 Bank 1 Bank 2 Bank 3

88 MB 8M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
96 MB 4M x 64/72 4M x 64/72 4M x 64/72
96 MB 4M x 64/72 8M x 64/72
104 MB 1M x 64/72 4M x 64/72 4M x 64/72 4M x 64/72
112 MB 2M x 64/72 4M x 64/72 4M x 64/72 4M x 64/72
128 MB 4M x 64/72 4M x 64/72 4M x 64/72 4M x 64/72
128 MB 8M x 64/72 8M x 64/72
128 MB 16M x 64/72
136 MB 16M x 64/72 1M x 64/72
136 MB 1M x 64/72 8M x 64/72 8M x 64/72
144 MB 2M x 64/72 16M x 64/72
144 MB 2M x 64/72 8M x 64/72 8M x 64/72
144 MB 16M x 64/72 1M x 64/72 1M x 64/72
152 MB 16M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
160 MB 16M x 64/72 2M x 64/72 2M x 64/72
160 MB 16M x 64/72 4M x 64/72
160 MB 4M x 64/72 8M x 64/72 8M x 64/72
176 MB 16M x 64/72 2M x 64/72 2M x 64/72 2M x 64/72
192 MB 8M x 64/72 8M x 64/72 8M x 64/72
192 MB 16M x 64/72 4M x 64/72 4M x 64/72
192 MB 16M x 64/72 8M x 64/72
200 MB 1M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
208 MB 2M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
224 MB 4M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
224 MB 16M x 64/7 24M x 64/7 24M x 64/72 4M x 64/72
256 MB 8M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
256 MB 16M x 64/72 16M x 64/72
256 MB 32M x 64/72
256 MB 16M x 64/72 8M x 64/72 8M x 64/72
256 MB 16M x 64/72 16M x 64/72
264 MB 32M x 64/72 1M x 64/72
264 MB 1M x 64/72 16M x 64/72 16M x 64/72

MB-P201

19

RAM Bank 0 Bank 1 Bank 2 Bank 3

272 MB 32M x 64/72 1M x 64/72 1M x 64/72
272 MB 32M x 64/72 2M x 64/72
272 MB 2M x 64/72 16M x 64/72 16M x 64/72
280 MB 32M x 64/72 1M x 64/72 1M x 64/72 1M x 64/72
288 MB 32M x 64/72 4M x 64/72
288 MB 32M x 64/72 2M x 64/72 2M x 64/72
288 MB 4M x 64/72 16M x 64/72 16M x 64/72
304 MB 32M x 64/72 2M x 64/72 2M x 64/72 2M x 64/72
320 MB 32M x 64/72 4M x 64/72 4M x 64/72
320 MB 16M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
320 MB 32M x 64/72 8M x 64/72
352 MB 32M x 64/72 4M x 64/72 4M x 64/72 4M x 64/72
384 MB 16M x 64/72 16M x 64/72 16M x 64/72
384 MB 16M x 64/72 32M x 64/72
384 MB 32M x 64/72 8M x 64/72 8M x 64/72
392 MB 1M x 64/72 16M x 64/72 16M x 64/72 16M x 64/72
400 MB 2M x 64/72 16M x 64/72 16M x 64/72 16M x 64/72
416 MB 4M x 64/72 16M x 64/72 16M x 64/72 16M x 64/72
448 MB 32M x 64/72 8M x 64/72 8M x 64/72 8M x 64/72
512 MB 16M x 64/72 16M x 64/72 16M x 64/72 16M x 64/72
512 MB 32M x 64/72 32M x 64/72
512 MB 32M x 64/72 16M x 64/72 16M x 64/72
520 MB 1M x 64/72 32M x 64/72 32M x 64/72
528 MB 2M x 64/72 32M x 64/72 32M x 64/72
544 MB 4M x 64/72 32M x 64/72 32M x 64/72
640 MB 16M x 64/72 32M x 64/72 32M x 64/72
640 MB 32M x 64/72 16M x 64/72 16M x 64/72 16M x 64/72
768 MB 32M x 64/72 32M x 64/72 32M x 64/72
776 MB 1M x 64/72 32M x 64/72 32M x 64/72 32M x 64/72
784 MB 2M x 64/72 32M x 64/72 32M x 64/72 32M x 64/72
800 MB 4M x 64/72 32M x 64/72 32M x 64/72 32M x 64/72
896 MB 16M x 64/72 32M x 64/72 32M x 64/72 32M x 64/72
1 GB 32M x 64/72 32M x 64/72 32M x 64/72 32M x 64/72

20 MB-P201

System Interrupts

The processor has two controllers, supplying 16 IRQs.
Below are assignments in decreasing priority.

IRQ Function

NMI Parity error
IRQ0 Reserved, interval timer
IRQ1 Reserved, keyboard buffer full
IRQ2 Reserve, cascade interrupt from slave PIC
IRQ3 Onboard serial port 2
IRQ4 Onboard sreial port 1
IRQ5 User available
IRQ6 Onboard floppy controller
IRQ7 Onboard parallel port
IRQ8 Real-time clock (RTC )
IRQ9 User available
IRQ10 User available
IRQ11 User available
IRQ12 Onboard mouse port if enabled, else user

available
IRQ13 Reserved, math coprocessor
IRQ14 Onboard primary IDE disk controller
IRQ15 Onboard secondary IDE disk controller

Note: IRQ9, IRQ10, IRQ11, IRQ12, IRQ15, IRQ3, IRQ4,
IRQ5 and IRQ7 can be redirected to PCI add-in boards.

The PCI standard has a 4-IRQ limitation. Some PCI add-in
boards do not require IRQs. Some can share an IRQ with
another board of the same model and manufacture. Check the
add-in board’s documentation for IRQ information.

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21

Direct Memory Access

The system supports seven DMA channels:

Controller 1 Controller 2

Channel 0 - Spare Channel 4 - Cascade

for Controller 1
Channel 1 - SDLC Channel 5 - Spare
Channel 2 - Diskette Channel 6 - Spare
Channel 3 - Spare Channel 7 - Spare

The first DMA controller holds channels 0 through 3. These
channels support 8-bit data transfers between 8-bit I/O
adapters and 8- or 16-bit system memory. Each channel can
transfer data in 4 KB blocks.

The second DMA controller holds channels 4 through 7.
Channel 4 cascades channels 0 through 3 to the
microprocessor. Channel 5, 6 and 7 support 16-bit data
transfers between 16-bit I/O adapters and 16-bit system
memory. These DMA channels can transfer data throughout
the 16 MB system-address space in 128 KB blocks.

Channel 5, 6 and 7 cannot transfer data on odd byte
boundaries.

22 MB-P201

The I/O Address Map

Address (hex) Function

0EC Index for VLSI chipsets 82C480 and

82C113

0ED Data for VLSI chipset 82C480 and

82C113
061 AT-compatible configuration port
078 System configuration port
079 BIOS independent timer (BIT)
1F0-1F7 IDE (SMC37C651)
278-27F Parallel port 2
2F8-2FF Serial port 2
378-37F Parallel port 1
3B0-3DF V ideo controller
3F0-3F7 Floppy disk controller
3F8-3FF Serial port 1

MB-P201

23

Configuration Utilities

Overview

BIOS Setup is a utility that defines and stores the
configuration of the machine. When the system “boots”, the
machine’ s configuration loads into memory . Drives, video
adapter, memory and keyboard are described to the system.

The program is built into the CMOS chip on the
motherboard. T o start the program, press the <Delete> key
while the system is booting. The Utilities menu displays:

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTW ARE, INC.

STANDARD CMOS SETUP INTEGRATED PERIPHERALS
BIOS FEATURES SETUP SUPERVISOR PASSWORD
CHIPSET FEATURES USER PASSWORD

POWER MANAGEMENT SETUP IDE HDD AUTO DETECTION

PnP PCI CONFIGURATION SETUP SAVE & EXIT SETUP
LOAD BIOS DEFAULTS EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS

Esc: Quit : Select Item
F10 : Save & Exit Setup (Shift)F2 : Change Color

Time, Date, Hard Disk Type...

Figure 2: The Main Menu

If you discover after making and saving system changes that
you have made a mistake, the BIOS lets you override the
settings. Simply press <Insert> when you restart the
computer .

24 MB-P201

The following table gives a brief description of the Main
Menu options.

Selection Description

Standard CMOS SetupStandard options for the

computer.
BIOS Features Setup Enhanced BIOS options.
Chipset FeaturesSetup Options for the motherboard’s

chipset.
Power Management Setup Advanced Power Management

(APM) options.
PnP/PCIConfiguration Plug and Play standard and PCI

Local Bus configuration options.
Integrated Peripherals I/O subsystems that depend on

integrated peripherals

controller on the motherboard.
Supervisor/User Password Change, set or disable a

password. Only the supervisor

password accesses Setup.
IDE HDD Auto Detection Automatically detect and

configure IDE hard disk

parameters.
Load BIOS Defaults BIOS defaults are factory

settings for the most stable,

minimal-performance.
Load Setup Defaults Setup defaults are factory

settings for optimal-performance

operations.
Save & Exit Setup Save settings in CMOS and exit

the program.
Exit Without Save Abandon all changes and exit

the program.

MB-P201

25

CMOS Setup Utility

This utility allows you to record your system setup.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AW ARD SOFTWARE, Inc.

Date (mm/dd/yy) : Friday, March 3, 1997
Time (hh/mm/ss) : 11:11:00

Pri Master Auto
Pri Slave Auto

Sec Master Auto
Sec Slave Auto

Floppy Drive A : 1.44 MB 3 1/2
Floppy Drive B : Not Installed
Video: EGA/VGA
Halt On : All Errors

Esc: Quit : Select Item PgUp/PgDn : Modify
F10 : Save & Exit Setup <Shift> F2 : Change Color

Type Size Cyls Head Precomp LandZ Sect Mode

Base Memory: 640K

Extended Memory: 48182K

Other Memory: 384K

Total Memory: 49152K

Figure 3: The Standard Setup Menu

The values represented in this table are used as an example,
and may not match your BIOS settings.

The Setup Procedure

To start Setup, highlight STANDARD CMOS SETUP on
the Main Menu, and press <ENTER>. The current system
configuration stored in CMOS is displayed. The screen
image displayed in figure X is an example, and may differ
slightly from your display .

26 MB-P201

The current cursor position is highlighted. The following list
shows how to move the cursor around the screen and make
selections:

Key Action

Left and right arrows Moves the cursor left to right and

right to left.

Up and down arrows Moves cursor up and down, and

from field to field.

<Enter> Selects the setting and moves

cursor to next field.

<F10> Saves the settings and exits

Setup.

<Esc> Exit to main screen from

submenu.

<F1> Help.

In order to use the <PgUp> and <PgDn> keys on the
numeric key pad, you must turn the <NumLock> off.

Alter only the items that need to be changed or reset. If a
highlighted option is correct, skip the corresponding step.

1) Start by entering the current date in the following format:
mm/dd/yy. March 3, 1991 would be entered as 03/03/91.
Press <Enter> to continue.

2) Enter the current time using the military style: hh:mm:ss.
4:11 p.m. is entered as 16:11:00. Press <Enter> to
continue.

MB-P201

27

3) Use the <PgUp> and <PgDn> keys to toggle between the
floppy drive types. The supported drive types are:

5.25" - 360 KB 3.5” - 720 KB

- 1.2 MB - 1.44 MB

- 2.88 MB

After you find your floppy drive type, press the <Enter>
key. Repeat this procedure for Floppy drive B:, or press
<Enter> again to skip to the next step.

4) Use the <PgUp> and <PgDn> keys to toggle between the
different hard drive types.

The lower right hand side of the Setup menu displays
information about your system board:

Base Memory Size The amount of base (conventional)

memory, 0 to 640 KB.

Extended Memory The amount of expansion memory
Size extended beyond base memory .

Other Memory Any other type of memory, usually

the memory above base and below
1 MB.

When you have made all the necessary changes, verify that
the settings are correct. Press the <Esc> key. The screen
displays the following:

Write data into CMOS and exit (Y/N)? Y

T ype “Y” or “N”, and press <Enter>. Entering “N” will
send you back to the Setup menu, where you can make
additional changes. Entering “Y” causes the system to accept
the changes. The screen clears and the system reboots.

28 MB-P201

BIOS Features Setup

The BIOS Features Setup allows you to fine tune some of
the BIOS’s special features. It is configured for your system
at the factory.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

V irus W arning: Disabled Video BIOS Shadow: Enabled
CPU Internal Cache: Enabled C8000-CBFFF Shadow: Disabled
External Cache: Enabled CC000-CFFFF Shadow: Disabled
Quick POST: Disabled D0000-D3FFF Shadow: Disabled
Boot Sequence: A, C D4000-D7FFF Shadow: Disabled
Swap Floppy Drive: Disabled D8000-DBFFF Shadow: Disabled
Boot Up Floppy Seek : Enabled DC000-DFFFF Shadow: Disabled
Boot Up NumLock Status : On
Boot Up System Speed : High
Gate A20 Option: Fast

T ypematic Rate Setting: Disabled

T ypematic Rate (Chars/Sec): 6
T ypematic Delay: 250
Security Option: Setup

PCI/VGA Palette Snoop: Disabled

OS Select-DRAM>64MB: Non­ OS/2

Figure 4: BIOS Features Setup

Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

The values represented in this table are used as an
example, and may not match your BIOS settings.

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29

Chipset Features Setup

This option allows you to alter some of the technical features
associated with the chipset. These values are optimized and
set at the factory. The settings need only be changed if you
are reconfiguring the system.

ROM PCI/ISA BIOS

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

Auto Configuration : Enabled
DRAM Speed Selection : 60 ns
MA Additional W ait State: Disabled
EDO RAS# To CAS# Relay: 3
EDO RAS# Precharge T ime: 3
EDO DRAM Read Burst: x222
EDO DRAM Write Burst: x222
DRAM Integrety Mode: Non-ECC
CPU-T o-PCI Posting: Enabled
System BIOS Cacheable: Enabled
V ideo BIOS Cacheable: Enabled
8 Bit I/O Recovery Time: 1
16 Bit I/O Recovery Time: 1
Memory Hole at 15M-16M: Disabled
Passive Release: Enabled
Delayed Transaction: Disabled
AGP Aperture Size (MB): 64
SDRAM RAS To CAS Delay: Slow
SDRAM RAS T o CAS T ime: Slow

SDRAM CAS Latency Time: 3
Current System Temp: 26oC/78oF
Current CPUF AN1 Speed: 5487 RPM
Current CPUF AN2 Speed: 5487 RPM
IN0(V) 2.83V IN1(V) 2.83V
IN2(V) 2.83V IN3(V) 5.41V

IN4(V) 11.00V IN5(V) -11.21
IN6(V) -4.64

Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old V alues (Shift)F2 : Color
F6 : Load BIOS Defaults

F7 : Load Setup Defaults

Figure 5: BIOS Features Setup

The values represented in this table are used as an
example, and may not match your BIOS settings.

30 MB-P201

Power Management Setup

This program lets you set the values for the components of
your “Green PC”. The default values are set at the factory.

ROM PCI/ISA BIOS

POWER MANAGEMENT SETUP

A WARD SOFTW ARE, INC.

Power Management : Max Savings
PM Control by APM : Y es
V ideo Off Method :DPMS

V ideo Off After: Suspend
Modem Use IRQ : 3
Doze Mode : 1 minute
Standby Mode : 1 minute
Suspend Mode : 1 minute
HDD Power Down Mode: 1 minute
Throttle Duty Cycle: 12.5%
ZZ Active in Suspend: Disabled
VGA Active Monitor: Enabled

Soft-Off By PWR-BTTN: Delay 4 sec

CPUFan Off In Suspend Mode: Enab.

Resume by Ring: Enabled
IRQ8 Break Suspend: Disabled

**Reload Global Timer Events**

IRQ [3-7, 9-15], NMI: Enabled
Primary IDE 0: Disabled
Primary IDE 1: Disabled
Secondary IDE 0: Disabled
Secondary IDE 1: Disabled
Floppy Disk: Disabled
Serial Port: Enabled
Parallel Port: Enabled

Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Figure 6: Power Management Setup

The following pages provide descriptive overviews of each
option in the Power Management Setup.

MB-P201

31

Power Management

This option lets you select the type or degree of power saving
for Doze, Standby and Suspend modes. See PM Timers for a
brief description of both.

Max Saving: Maximum power savings (SL processors only).

User Defined: Set each mode individually. Select time-out

periods in PM Timers section.

Min Savings: Minimum savings. Inactivity period is 1 hour.
In each mode, except hard drive.

PM Control By APM

If Advanced Power Management APM) is installed, selecting
Y es gives better power savings.

Video Off Method Determines the manner in which the
monitor is blanked.

V/H SYNC+Blank: System turns off vertical and horizontal
synchronization ports and writes blanks to the video buffer .

DPMS Support: Select this option if your monitor supports
the Display Power Management Signaling (DPMS) standard.
Use the software supplied with the video subsystem to select
video power management values.

Blank Screen: System only writes blanks to the video buffer .

MODEM Use IRQs

Names the interrupt request (IRQ) line assigned to the
modem, if any , on your system. Activity on the selected IRQ
always awakens the system.

32 MB-P201

PM Timers

The following are Green PC power saving functions. They
are user-configurable only during User Defined Power
Management mode.

Doze Mode: After the selected period of inactivity, 1 minute
to 1 hour, the processor clock runs at slower speed while all
other devices continue to operate at full speed.

Standby Mode: After the selected period of inactivity, 1
minute to 1 hour, the fixed disk and video shut off while all
other devices continue to operate at full speed.

Suspend Mode: After the selected period of system inactivity ,
1 minute to 1 hour, all devices except the processor shut off.

HDD Power Down: After the selected period of drive
inactivity, 1 to 15 minutes, the hard disk drive powers down
while all other devices remain active.

Wake Up Events

Y ou can turn on or of f monitoring of four commonly used
interrupt requests so they do not awaken the system from, or
reset activity timers for Doze and Standby modes.

For example, if you have a modem on IRQ3, you can turn on
IRQ3 as a wake-up event, so that an interrupt from the
modem can wake up the system.

Or you may want to turn off IRQ12, the PS/2 mouse, as a
wake-up event, so accidently brushing the mouse does not
awaken the system. The default wake-up event is keyboard
activity.

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33

Power Down and Resume Events

Y ou can disable monitoring of common IRQs so they do not
awaken the system from, or reset activity timers for Suspend
mode.

IRQ3 - COM2 IRQ10 - Reserved
IRQ4 - COM1 IRQ11 - Reserved
IRQ5 - LPT2 IRQ12 - PS2/Mouse
IRQ6 - Floppy IRQ13 - Coprocessor
IRQ7 - LPT1 IRQ14 - Hard disk
IRQ8 - RTC IRQ15 - Reserved

IRQ9 - IRQ2 redir.

Power Management Setup allows you to take advantage of
Microsoft’s DOS 6.2

TM

Advanced Power Management

(APM) program.

The values represented in this table are used as an example,
and may not match your BIOS settings. To take advantage of
this feature,

• Make sure DOS 6.2 is installed on your system

• Select YES for PM Control by APM in the menu above

• Enable the DOS Power program

• Enable the Power program in Windows 3.1

TM

, if installed

34 MB-P201

DOS 6.2TM Advanced Power Program

T o use the program, follow these simple steps.

1) Open your CONFIG.SYS file by using a text editor, such

as MS-DOS Editor. To open your CONFIG.SYS file
using MS-DOS Editor, type the following at the
command prompt: edit c:\config.sys

2) At the end of the CONFIG.SYS file, add a device

command specifying the location of the POWER.EXE
file. This example specifies the POWER.EXE file is
located in the C: drive DOS directory, and that the default
setting should be used: device=c:\dos\power.exe

3) Save the changes to your CONFIG.SYS file, and quit the

text editor.

4) Restart the computer. Press <CTRL> <ALT> <DEL>.

MS-DOS 6.2 User’ s Guide also provides instructions. For
more information, type “help power”, at the DOS prompt.

TM

Windows 3.1

Advanced Power Management

Use the Windows Setup program to select the MS-DOS
with APM option.

1) Start the W indows Setup program by changing to the

Windows root directory and typing Setup: cd windows
setup.

2) At the Windows Setup menu, edit the Computer field.

Use the arrow key to highlight the field, and press
<Enter>.

MB-P201

35

3) From the Computer screen, select MS-DOS with APM
and press <Enter>. Use the arrow key to scroll through
the selection menu.

4) Accept the change and exit the Setup program. Restart
your computer by pressing <CTRL> <ALT> <DEL>.

TM

Windows 95

Advanced Power Management

1) Enable the APM option in BIOS Setup before installing
Windows 95.

2) The APM is automatically installed during Windows 95
setup.

3) An APM icon appears in the Control Panel window,
indicating a successful installation.

36 MB-P201

PnP/PCI Configuration Setup

These settings are pre-set at the factory and should be altered
with care.

The values represented in this table are used as an example,
and may not match your BIOS settings.

ROM PCI/ISA BIOS

PnP/PCI CONFIGURATION SETUP

AWARD SOFTWARE, INC.

PnP OS Installed: Yes

PCI IDE IRQ Map To : PCI-AUTO

Resources Controlled By: Manual Primary IDE INT# : A

Reset Configuration Data: Disabled Secondary IDE INT# : B

IRQ-3 Assigned to : Legacy ISA
IRQ-4 Assigned to : Legacy ISA
IRQ-5 Assigned to : PCI/ISA PnP
IRQ-7 Assigned to : PCI/ISA PnP
IRQ-9 Assigned to : PCI/ISA PnP
IRQ-10 Assigned to : PCI/ISA PnP
IRQ-12 Assigned to : PCI/ISA PnP
IRQ-14 Assigned to : PCI/ISA PnP
IRQ-15 Assigned to : PCI/ISA PnP
DMA-0 Assigned to: PCI/ISA PnP
DMA-1 Assigned to: PCI/ISA PnP
DMA-3 Assigned to: PCI/ISA PnP
DMA-5 Assigned to: PCI/ISA PnP
DMA-6 Assigned to: PCI/ISA PnP
DMA-7 Assigned to: PCI/ISA PnP

Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Figure 7: Plug and Play/PCI Setup

MB-P201

37

Integrated Peripherals Configuration Setup

This program lets you setup the components that are
integrated onto the motherboard. These features include the
E-IDE controller and drives, universal serial bus (USB)
controller, floppy controller, serial ports and parallel port.

ROM PCI/ISA BIOS

INTEGRATED PERIPHERALS SETUP

AWARD SOFTWARE, INC.

IDE HDD Block Mode : Enabled
IDE Primary Master PIO : Enabled
IDE Primary Slave PIO : Enabled
IDE Secondary Master PIO : Enabled
IDE Secondary Slave PIO : Enabled
IDE Primary Master UDMA : Auto
IDE Primary Slave UDMA : Auto

IDE Secondary Master UDMA : Auto
IDE Secondary Slave UDMA : Auto

On-Chip Primary PCI IDE : Enabled
On-Chip Secondary PCI IDE : Enabled
USB Keyboard Support : Enabled

KBC Input Clock : 8 MHz
Onboard FDC Controller : Enabled
Onboard Serial Port 1 :
Onboard Serial Port 2 : COM2/2F8
UR2 Mode : Standard
Onboard Parallel Port : 378/IRQ7
Parallel Port Mode :
Parallel Port Mode : SPP

Figure 8: Integrated Peripherals Configuration Setup

COM1/3F8

Compatible

Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

The settings are preset at the factory and should be altered
with care. The values represented in this table are used as an
example, and may not match your BIOS settings.

38 MB-P201

MB-P201

39