Supermicro P8SAA-O Datasheet

®

P8SAA+

USER’S MANUAL

Revision 1.0

SUPER

The information in this User’s Manual has been carefully reviewed and is believed to be

accurate. The vendor assumes no responsibility for any inaccuracies that may be contained

in this document, makes no commitment to update or to keep current the information in this

manual, or to notify any person or organization of the updates.

Please Note: For the

most up-to-date version of this manual, please see our web site at

www.supermicro.com.

SUPERMICRO COMPUTER reserves the right to make changes to the product described in

this manual at any time and without notice. This product, including software, if any, and

documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or

reduced to any medium or machine without prior written consent.

IN NO EVENT WILL SUPERMICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT,

SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE OR

INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, THE VENDOR SHALL NOT HAVE

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INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.

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liability for all claims will not exceed the price paid for the hardware product.

Unless you request and receive written permission from SUPER MICRO COMPUTER, you

may not copy any part of this document.

Information in this document is subject to change without notice. Other products and

companies referred to herein are trademarks or registered trademarks of their respective

companies or mark holders.

Preface

About This Manual

This manual is written for system integrators, PC technicians and

knowledgeable PC users. It provides information for the installation and use

of the P8SAA+ motherboard. The P8SAA+ supports single Intel

Pentium

®

4 Processor (the Prescott Processor) in the 775-Land Grid Array

Package at a system bus speed of 1066 MHz/800 MHz/533 MHz. The

Pentium 4 Processor in the 775-Land Grid Array Package is housed in a

Flip-Chip Land Grid Array (FC-LGA4) package that interfaces with the moth-

erboard via an LGA775 socket. The package consists of a processor core

mounted on a substrate land-carrier. An integrated heat spreader (IHS) is

attached to the package substrate and core and serves as the contacting

surface for processor component thermal solutions, such as a heatsink.

Please refer to the motherboard specifications pages on our web site (http:/

/www.supermicro.com/Product) for updates on supported processors.

This product is intended to be professionally installed.

Manual Organization

Chapter 1 includes a checklist of what should be included in your main-

board box, describes the features, specifications and performance of the

P8SAA+ mainboard and provides detailed information about the chipset.

Chapter 2 begins with instructions on handling static-sensitive devices.

Read this chapter when installing the processor and DDR-II memory mod-

ules and when mounting the mainboard in the chassis. Also refer to this

chapter to connect the floppy and hard disk drives, the IDE interfaces, the

parallel and serial ports, the mouse and keyboard and the twisted wires for

the power supply, the reset button, the keylock/power LED and the speaker.

If you encounter any problems, see Chapter 3, which describes trouble-

shooting procedures for the video, the memory and the setup configuration

stored in CMOS. For quick reference, a general FAQ (Frequently Asked

Questions) section is provided. Instructions are also included for contact-

ing technical support. In addition, you can visit our web site at

www.supermicro.com/techsupport.htm for more detailed information.

Chapter 4 includes an introduction to BIOS and provides detailed informa-

tion on running the CMOS Setup utility.

Appendix A provides BIOS POST Messages.

Appendix B lists BIOS POST Codes.

Appendix C lists Software and the OS Installation Instructions.

Preface

iii

P8SAA+ User’s Manual

Table of Contents

Preface

About This Manual ...................................................................................................... iii

Manual Organization ................................................................................................... iii

Chapter 1: Introduction

1-1 Overview......................................................................................................... 1-1

Checklist .................................................................................................... 1-1

Contacting Supermicro............................................................................ 1-2

SUPER P8SAA+Image .............................................................. 1-3

P8SAA+ Layout ........................................................................ 1-4

P8SAA+Quick Reference......................................................... 1-5

Intel 925X (Alderwood) Chipset: System Block Diagram .................. 1-6

Motherboard Features ............................................................................ 1-7

1-2 Chipset Overview........................................................................................... 1-9

1-3 PC Health Monitoring.................................................................................... 1-10

1-4 Power Configuration Settings .................................................................... 1-10

1-5 ACPI Features ............................................................................................... 1-11

1-6 Power Supply ................................................................................................ 1-13

1-7 Super I/O......................................................................................................... 1-14

Chapter 2: Installation

2-1 Static-Sensitive Devices ............................................................................... 2-1

2-2 Processor and Heatsink Installation............................................................ 2-2

2-3 Mounting the Motherboard in the Chassis ................................................. 2-5

2-4 Installing DDR-II Memory ................................................................................ 2-6

2-5 I/O Port/Front Control Panel Connector Locations.................................... 2-7

2-6 Connecting Cables ......................................................................................... 2-8

Power Supply Connectors ..................................................................... 2-8

IR Connector.............................................................................................. 2-8

PW_ON Connector ................................................................................... 2-9

Reset Connector ....................................................................................... 2-9

IDE LED .................................................................................................... 2-10

Power_LED Connector........................................................................... 2-10

Keylock Connector ................................................................................ 2-11

Speaker Connector................................................................................ 2-11

iv

v

Serial Ports ............................................................................................. 2-12

CD Header/Audio Header ..................................................................... 2-12

Fan Headers........................................................................................... 2-13

Chassis Intrusion ................................................................................... 2-13

ATX PS/2 Keyboard/Mouse Ports ....................................................... 2-14

Universal Serial Bus (USB).................................................................. 2-14

Wake-On-Ring ......................................................................................... 2-15

Wake-On-LAN ......................................................................................... 2-15

Ethernet Port............................................................................................ 2-16

SMB Header............................................................................................. 2-16

Overheat/Fan Fail LED ........................................................................... 2-17

AC '97 Output.......................................................................................... 2-17

SATA LED................................................................................................ 2-18

GLAN LED................................................................................................ 2-18

2-7 Jumper Settings............................................................................................ 2-19

Explanation of Jumpers ........................................................................ 2-19

Power Force-On ..................................................................................... 2-19

CMOS Clear............................................................................................. 2-20

USB Wake-Up.......................................................................................... 2-20

Keyboard Wake-Up................................................................................. 2-21

Gigabit LAN Enable................................................................................. 2-21

2-8 Parallel Port, Floppy/Hard Drive and Audio Connections ...................... 2-22

Parallel Port Connector ......................................................................... 2-22

Floppy Connector................................................................................... 2-23

IDE Connector......................................................................................... 2-23

Chapter 3: Troubleshooting

3-1 Troubleshooting Procedures ........................................................................ 3-1

Before Power On .................................................................................... 3-1

No Power .................................................................................................. 3-1

No Video ................................................................................................... 3-1

Memory Errors.......................................................................................... 3-2

Losing the System’s Setup Configuration ........................................... 3-2

3-2 Technical Support Procedures .................................................................... 3-2

3-3 Frequently Asked Questions........................................................................ 3-3

3-4 Returning Merchandise for Service............................................................ 3-5

Table of Contents

P8SAA+ User’s Manual

Chapter 4: BIOS

4-1 Introduction....................................................................................................... 4-1

4-2 Running Setup.................................................................................................. 4-2

4-3 Main BIOS Setup.............................................................................................. 4-2

Main BIOS Setup Menu ........................................................................... 4-3

4-4 Advanced BIOS Setup.................................................................................... 4-5

4-4.1 Advanced BIOS Features............................................................ 4-5

4-4.2 Advanced Chipset Control........................................................... 4-7

4-4.3 I/O Device Configuration .............................................................. 4-8

4-4.4 PnP Configuration.......................................................................... 4-9

4-4.5 Hardware Monitors ..................................................................... 4-10

4-4.6 Processor & Clock Options ....................................................... 4-11

4-4.7 DMI Event Log............................................................................... 4-12

4-4.8 Console Redirection..................................................................... 4-12

4-5 Security........................................................................................................... 4-13

4-6 Boot ................................................................................................................. 4-14

4-7 Exit ................................................................................................................... 4-15

Appendices:

Appendix A: BIOS POST Messages ..................................................................... A-1

Appendix B: BIOS POST Codes .............................................................................B-1

Appendix C: Software Installation Instructions ...................................................C-1

vi

Chapter 1: Introduction

1-1

Chapter 1

Introduction

1-1 Overview

Checklist

Congratulations on purchasing your computer motherboard from an ac-

knowledged leader in the industry. Supermicro boards are designed with

the utmost attention to detail to provide you with the highest standards in

quality and performance.

Please check that the following items have all been included with your

motherboard. If anything listed here is damaged or missing, contact your

retailer.

All Included with Retail Box Only

One (1) Supermicro Mainboard

One (1) IDE cable (CBL-036)

One (1) floppy drive ribbon cable (CBL-022)

Two (2) SATA cables (CBL-044)

One (1) I/O shield (CBL-PT37A)

One (1) Supermicro CD or diskettes containing drivers and utilities

One (1) User's/BIOS Manual

1-2

P8SAA+ User’s Manual

Contacting Supermicro

Headquarters

Address: SuperMicro Computer, Inc.

980 Rock Ave.

San Jose, CA 95131 U.S.A.

Tel: +1 (408) 503-8000

Fax: +1 (408) 503-8008

Email: [email protected] (General Information)

[email protected] (Technical Support)

Web Site: www.supermicro.com

Europe

Address: SuperMicro Computer B.V.

Het Sterrenbeeld 28, 5215 ML

's-Hertogenbosch, The Netherlands

Tel: +31 (0) 73-6400390

Fax: +31 (0) 73-6416525

Email: [email protected] (General Information)

[email protected] (Technical Support)

[email protected] (Customer Support)

Asia-Pacific

Address: SuperMicro, Taiwan

4F, No. 232-1 Liancheng Road

Chung-Ho 235, Taipei Hsien, Taiwan, R.O.C.

Tel: +886-(2) 8226-3990

Fax: +886-(2) 8226-3991

Web Site: www.supermicro.com.tw

Technical Support:

Email: su[email protected]

Tel: 886-2-8226-3990, ext.132 or 139

Chapter 1: Introduction

1-3

Figure 1-1. P8SAA+ Image

1-4

P8SAA+ User’s Manual

Figure 1-3. Motherboard Layout

(not drawn to scale)

S

UPER P8SAA+

®

*See Chapter 2 for detailed information on jumpers, I/O ports and JF1

front panel connections.

P4 CPU

LGA 775

JPWAKE

KB/MS

Parallel Port

COM1 Port

USB

3/4/5/6

USB1/2

& LAN

JPUSB

Fan3

Clock

925XE

Alderwood

(North Bridge)

x16 PCI-E Slot#7

PCI Slot#3 33 MHz

LAN

CTRL

JPL1

GLAN Enable

CDin

Aux.

AC97

FWH

J43

CL CMOS

JL1

JWOR

SATA0

FP CTRL

Fan2

JF1

Buzzer

IDE

24-Pin ATX PWR

Super IO

Fan1

USB7/8

Chs

Intru.

ICH6R

SMB

DIMM#1A (Blue)

DIMM#2A (Black)

DIMM#1B (Blue)

DIMM#2B (Black)

Audio

WOL

JBT1

J3

J40

(South

Bridge)

J45

J29

J44

J32

J31

J28

KB/MS Wake-Up

J30

Battery

J37

J41

12V 4-pin

PWR

COM2 Port

J1

J7

J8

J9

J34

JOH1

FDD

J27

SATA1

SATA2

SATA3

* " " indicates the location of "Pin 1".

LE1

5V Stby Warn LED

USB WakeUp

SATA

LED

OH

PCI Slot#4 33 MHz

PCI Slot#2 33 MHz

PCI Slot#1 33 MHz

x4 PCI-E Slot#5

PCI Slot#6 33 MHz

JP6

JP7

JP8

Fan4

Chapter 1: Introduction

1-5

P8SAA+ Quick Reference

Jumpers Description Default Setting

JBT1 CMOS Clear See Section 2-7

JP6/JP7/JP8

JPL1 Giga-bit LAN Enable Pins 1-2 (Enabled)

JPUSB USB Wake Up (USB1/2) Pins 2-3 (Disabled)

JPWAKE KB/Mouse Wake-Up Pins 2-3 (Disabled)

Connectors Description

ATX (J40) ATX 24-Pin Power Connector

AUX. PWR (J41) 12V 4-pin Power Connector (Required)

Audio (J45) Audio Port (Line-In, Line-Out, Microphone)

AUX Auxiliary (Audio) Input Header

Chassis Intrusion (JL1) Chassis Intrusion Header

CD In Audio CD Input Header

COM1(J31), COM2(J32) COM Port Port 1 & Port 2 Connectors

DIMM#1A,#2A,#1B,#2B Memory (DIMM) Slots (1 through 4)

Fans 1-3 Fan1: CPU Fan, Fan2/3: Chassis Fan Headers

FP Control (JF1) Front Panel Control Header

Floppy Connector(J27) Floppy Disk Connector

IDE(J3) IDE Connector

KB/Mouse (J28) PS/2 Keyboard/Mouse

LAN Port Ethernet RJ45 (Gigabit LAN) Connector

LE 1 +5V Standby PWR LED Indicator

OH LED (JOH1) Overheat LED Header

PCI Slots Slots #1-#4, #6: 32 bit 33 MHz PCI slots

PCI-Express Slots Slot #5: x4 (physical:x16), Slot#7: x16 PCI-E

Parallel (J30) Printer Port

SATA #0-3 4 SATA Headers

SATA LED (J37) SATA LED header

SMB (J34) System Management Bus Header

USB1/2(J29), USB3-6(J44)Back Panel Universal Serial Ports 1-6

USB7/8(J43) Front Panel USB headers 7/8

WOL Wake On LAN header

WOR (JWOR1) Wake-On-Ring Header

1-6

P8SAA+ User’s Manual

Figure 1-3. 925XE Alderwood Chipset:

System Block Diagram

Note: This is a general block diagram and may not exactly

represent the features on your motherboard. See the follow-

ing pages for the actual specifications of each motherboard.

SLOTS

LGA775_PR OCE S S OR

ICH-6R

USB

PORT_0~7

FWH

LPC I/O

MS .

KB. FDD. SER.1

SER.2

PRN.

PR I_IDE

VR M 10.1

ADDR

CTRL CTRL

ADDR

DATADATA

UDMA/100

LPC

PC I_32_B US

DDR 2

VRM V10.1

DM

I

5_PC I_32b

DIMM_C HA

S-ATA/150

4 x S ATA

CK 410 CL K

1 PCIE _x16

GRAPHIC

MC

H

DIMM_C HB

PORTS

PCIE_x16

Gb

_L

AN

PCIE_x4

W83627THF

AUDIO

F S B : 1066/800 MHz

LPCUS B 2.0/1.1

AC97

5.1-CH

Alderwood

SDRAM

925XE

1 PCI_E x4

(using x16 slot)

Chapter 1: Introduction

1-7

Motherboard Features

CPU ! Latest CPU technology!

• Single Intel Pentium

®

4 Processor (up to 3.6 GHz) in the 775-Land Grid

Array Package at a system bus speed of 1066/800 MHz (New VRM

10.1 power design supporting Intel next generation CPU.)

Memory ! Latest memory technology!

• Four DIMM slots support Dual/Single Channel DDRII 533/400 MHz up to 4

GB of non-ECC Unbuffered two-way interleaved or non-interleaved

DDR-II 256MB, 512MB and 1GB SDRAM. Note: See Section 2-4 for details.

Chipset ! Latest Intel chipset technology!

• Intel Alderwood 925XE

Expansion Slots

• One (1) PCI-Express x16

• One (1) PCI-Express x4 (using PCI-E x16 slot)

• Five (5) 32-bit PCI 33MHz (5V)

BIOS

• 4 Mb Firmware Hub AwardBIOS

®

Flash BIOS

• APM 1.2, DMI 2.3, PCI 2.2, ACPI 1.0, Plug and Play (PnP)

PC Health Monitoring

• Onboard voltage monitors for CPU core, Chipset Voltage, Memory

Voltage, +3.3V, +5V, +5V standby, +3V standby, +12V, and −12V.

• Fan status monitor with firmware/software speed control

• SuperDoctor III, NMI

• Environmental temperature monitoring via BIOS

• Power-up mode control for recovery from AC power loss

• System overheat/Fan Fail LED and control

• System resource alert via Supero Doctor III

• Hardware BIOS virus protection

1-8

P8SAA+ User’s Manual

ACPI Features

• Microsoft OnNow

• Slow blinking LED for suspend state indicator

• BIOS support for USB keyboard

• Main switch override mechanism

• Internal/external modem ring-on

Onboard I/O

• 1 ATA/100 EIDE Channel

• Intel ICH6R SATA Controller, 4 connectors for 4 devices with support

of RAID 0, RAID 1

• 1 floppy port interface (up to 2.88 MB)

• 2 Fast UART 16550 compatible serial ports

• 1 ECP/EPP parallel port

• Intel 82541 Gigabit Ethernet Controller

• PS/2 mouse and PS/2 keyboard ports

• Up to 8 USB (Universal Serial Bus) 2.0 ports for a speed of up to

480Mbps

• AC'97 audio high quality 6-channel sound

Other

• Hyper-threading enabled

• Wake-on-LAN

• Wake-on-Ring (WOR)

• Multiple CPU clock frequency ratio selections (set in BIOS)

• Suspend-to-RAM

• Onboard +5vsb warning LED ("LE1")

CD Utilities

• BIOS flash upgrade utility

• Drivers and software for Intel 925XE chipset utilities

Dimensions

• ATX form factor, 12" x 9.5" (305 x 228.6 mm)

Chapter 1: Introduction

1-9

1-2 Chipset Overview

Intel’s Alderwood (925XE) chipset, designed for use with the Pentium 4

LGA 775 CPU, is comprised of two primary components: the Memory Con-

troller Hub (MCH) and the I/O Controller Hub (ICH6R). The Alderwood

(925XE) provides the performance and feature-set required for the high-

end desktop and the UP workstation market.

Memory Controller Hub (MCH)

The function of the MCH is to manage the data flow between five inter-

faces: the CPU interface Front Side Bus (FSB), System Memory Interface

(DRAM controller), PCI Express Graphic Interface, I/OController and the Di-

rect Media Interface (DMI). The MCH is optimized for the Pentium 4 proces-

sors in an LGA775 Package. It supports one or two channels of unbuf-

fered, Non-ECC DDR2 533/400 SDRAM. It also supports the PCI-Express-

based external graphics solutions.

The ACPI component provides the data buffering and interface arbitration

required to ensure that system interfaces operate efficiently. The Direct

Media Interface (DMI) is a point-to-point interconnect between the

Alderwood MCH and the ICH6R. Virtually all communication between the

MCH and the ICH occurs over the Direct Media Interface. DMI supports 2GB/

s (IGB/s each direction) of bandwidth, using a 100 MHz differential clock.

Intel ICH6R System Features

The I/O Controller Hub provides the I/O subsystem with access to the rest

of the system. Functions and capabilities include:

*PCI Express Base Specification, Rev. 1.0a-compliant

*PCI 2.3

*ACPI Power Management Logic Support

*USB host interface

*Enhanced DMA Controller

*System Management Bus

*Low Pin Count (LPC) Interface

*Firmware Hub (FWH) Interface

1-10

P8SAA+ User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the the P8SAA+.

The motherboard has an onboard System Hardware Monitor chip that sup-

ports PC health monitoring.

Onboard Voltage Monitors for the CPU Core, Chipset Voltage,

Memory Voltage, +3.3V Standby,

++

+5V,

++

+12V,

−−

−12V and +5V

standby

The onboard voltage monitor will scan these voltages continuously. Once a

voltage becomes unstable, it will give a warning or send an error message

to the screen. Users can adjust the voltage thresholds to define the sensi-

tivity of the voltage monitor.

Fan Status Monitor with Firmware/Software Speed Control

The PC health monitor can check the RPM status of the cooling fans. The

onboard fans are controlled by Thermal Management via BIOS.

CPU Overheat/Fan Fail LED and Control

This feature is available when the user enables the CPU overheat warning

function in the BIOS. This allows the user to define an overheat tempera-

ture. When this temperature reaches the threshold or a fan failure occurs,

the CPU thermal trip feature will be activated and it will send a signal to the

Speaker LED and, at the same time, the CPU speed will be decreased.

1-4 Power Configuration Settings

This section describes features of your motherboard that deal with power

and power settings.

Microsoft OnNow

The OnNow design initiative is a comprehensive, system-wide approach to

system and device power control. OnNow is a term for a PC that is always

on but appears to be off and responds immediately to user or other re-

quests.

Chapter 1: Introduction

1-11

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis power LED will start

blinking to indicate that the CPU is in suspend mode. When the user presses

any key, the CPU will wake-up and the LED will automatically stop blinking

and remain on.

BIOS Support for USB Keyboard

If the USB keyboard is the only keyboard in the system, it will function like

a normal keyboard during system boot-up.

Main Switch Override Mechanism

When an ATX power supply is used, the power button can function as a

system suspend button. When the user depresses the power button, the

system will enter a SoftOff state. The monitor will be suspended and the

hard drive will spin down. Depressing the power button again will cause

the whole system to wake-up. During the SoftOff state, the ATX power

supply provides power to keep the required circuitry in the system alive. In

case the system malfunctions and you want to turn off the power, just

depress and hold the power button for 4 seconds. The power will turn off

and no power will be provided to the motherboard.

1-5 ACPI Features

ACPI stands for Advanced Configuration and Power Interface. The ACPI

specification defines a flexible and abstract hardware interface that pro-

vides a standard way to integrate power management features throughout

a PC system, including its hardware, operating system and application soft-

ware. This enables the system to automatically turn on and off peripherals

such as CD-ROMs, network cards, hard disk drives and printers. This also

includes consumer devices connected to the PC such as VCRs, TVs, tele-

phones and stereos.

In addition to enabling operating system-directed power management, ACPI

provides a generic system event mechanism for Plug and Play and an oper-

ating system-independent interface for configuration control. ACPI lever-

ages the Plug and Play BIOS data structures while providing a processor

architecture-independent implementation that is compatible with both Win-

dows 2000 and Windows NT 5.0.

1-12

P8SAA+ User’s Manual

Microsoft OnNow

The OnNow design initiative is a comprehensive, system-wide approach to

system and device power control. OnNow is a term for a PC that is always

on but appears to be off and responds immediately to user or other re-

quests.

Slow Blinking LED for Suspend-State Indicator

When the CPU goes into a suspend state, the chassis power LED will start

blinking to indicate that the CPU is in suspend mode. When the user presses

any key, the CPU will wake-up and the LED will automatically stop blinking

and remain on.

Main Switch Override Mechanism

When an ATX power supply is used, the power button can function as a

system suspend button to make the system enter a SoftOff state. The

monitor will be suspended and the hard drive will spin down. Depressing

the power button again will cause the whole system to wake-up. During

the SoftOff state, the ATX power supply provides power to keep the re-

quired circuitry in the system alive. In case the system malfunctions andyou

want to turn off the power, just depress and hold the power button for 4

seconds. This option can be set in the Power section of the BIOS Setup

routine.

Wake Ring-On (WOR)

Wake-up events can be triggered by a device such as the external modem

ringing when the system is in the SoftOff state. Note that external modem

ring-on can only be used with an ATX 2.01 (or above) compliant power

supply.

Chapter 1: Introduction

1-13

1-6 Power Supply

As with all computer products, a stable power source is necessary for

proper and reliable operation. It is even more important for processors that

have high CPU clock rates of 1 GHz and faster.

The P8SAA+ accommodates 12V ATX power supplies. Although

most power supplies generally meet the specifications required by the CPU,

some are inadequate. A 2 amps of current supply on a 5V Standby rail is

strongly recommended.

The P8SAA+ accommodates ATX power supplies. It is strongly recom-

mended that you use a high quality power supply that meets ATX power

supply Specification 2.02 or above. You should use one that will supply at

least 350W of powerAlso your power supply must supply 1.5A for the

Ethernet ports. It must also be SSI compliant (info at http://

www.ssiforum.org/). Additionally, in areas where noisy power transmis-

sion is present, you may choose to install a line filter to shield the computer

from noise. It is recommended that you also install a power surge protector

to help avoid problems caused by power surges. (*Note: an additional

12V 4-pin power (J41) connection is required for high-load system

configurations.)

Wake-On-LAN (WOL)

Wake-On-LAN is defined as the ability of a management application to re-

motely power up a computer that is powered off. Remote PC setup, up-

dates and asset tracking can occur after hours and on weekends so that

daily LAN traffic is kept to a minimum and users are not interrupted. The

motherboard has a 3-pin header (WOL) to connect to the 3-pin header on a

Network Interface Card (NIC) that has WOL capability. Wake-On-LAN must

be enabled in BIOS. Note that Wake-On-LAN can only be used with an ATX

2.01 (or above) compliant power supply.

1-14

P8SAA+ User’s Manual

1-7 Super I/O

The disk drive adapter functions of the Super I/O chip include a floppy disk

drive controller that is compatible with industry standard 82077/765, a data

separator, write pre-compensation circuitry, decode logic, data rate selec-

tion, a clock generator, drive interface control logic and interrupt and DMA

logic. The wide range of functions integrated onto the Super I/O greatly

reduces the number of components required for interfacing with floppy disk

drives. The Super I/O supports two 360 K, 720 K, 1.2 M, 1.44 M or 2.88 M

disk drives and data transfer rates of 250 Kb/s, 500 Kb/s or 1 Mb/s.

It also provides two high-speed, 16550 compatible serial communication

ports (UARTs), one of which supports serial infrared communication. Each

UART includes a 16-byte send/receive FIFO, a programmable baud rate

generator, complete modem control capability and a processor interrupt sys-

tem. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps

as well as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s,

which support higher speed modems.

The Super I/O provides functions that comply with ACPI (Advanced Con-

figuration and Power Interface), which includes support of legacy and ACPI

power management through a SMI or SCI function pin. It also features auto

power management to reduce power consumption.

The IRQs, DMAs and I/O space resources of the Super I/O can be flexibly

adjusted to meet ISA PnP requirements, which support ACPI and APM (Ad-

vanced Power Management).

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