SUPER MICRO Computer MBD-X7SLA-H-O User manual

X7SLA-L

USER’S MANUAL

Revision 1.0a

X7SLA-H

Manual Revision 1.0a

Release Date: July 22, 2009

Unless you request and receive written permission from Super Micro Computer, Inc., 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.

Printed in the United States of America

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.

Super Micro Computer, Inc. ("Supermicro") 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 SUPER MICRO COMPUTER, INC. BE LIABLE FOR DIRECT, INDIRECT,

SPECIAL, INCIDENTAL, SPECULATIVE 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, SUPER MICRO COMPUTER, INC.

SHALL NOT HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED

WITH THE PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING,

INSTALLING OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.

Any disputes arising between manufacturer and customer shall be governed by the laws of Santa

Clara County in the State of California, USA. The State of California, County of Santa Clara shall

be the exclusive venue for the resolution of any such disputes. Supermicro's total liability for all

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

FCC Statement: 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

manufacturer’s instruction manual, may cause interference with radio communications. However,

there is no guarantee that interference will not occur in a particular installation. If this equipment

does cause harmful interference to radio or television reception, which can be determined by

turning the equipment off and on, you are 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 the 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/television technician for help.

California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate

warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate

Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”.

WARNING: Handling of lead solder materials used in this

product may expose you to lead, a chemical known to

the State of California to cause birth defects and other

reproductive harm.

Preface

About This Manual

This manu al is written for syste m integr a tors, PC technic i ans and

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

X7SLA-L/X7SLA-H motherboard.

About This Motherboard

The X7SLA-L comes integrated with the Intel® ATOM™ 230 (512K cache, 4W)

processor while the X7SLA-H features the Intel ATOM 330 (Dual Core, 1MB cache,

8W) processor. Both support a system bus speed of 533 MHz. With memory support

for up to 2 GB of non-ECC, unbuffered 533/400 MHz DDR2 in 2 sockets, 4 SATA

ports, an IDE controller, on-board VGA, and up to 8 USB 2.0 ports (X7SLA-H), the

X7SLA-L/X7SLA-H delivers cost-effective performance in a small form factor.

This product is intended to be professionally installed and serviced by a techni-

cian.

Manual Organization

Chapter 1 describes the features, specications and performance of the mainboard

and provides detailed information about the chipset.

Chapter 2 provides hardware installation instructions. Read this chapter when in-

stalling the processor, memory modules and other hardware components into the

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

shooting procedures for video, memory and system setup stored in the CMOS.

Chapter 4 includes an introduction to the BIOS and provides detailed information

on running the CMOS Setup utility.

Appendix A provides BIOS Error Beep Codes.

Appendix B lists the Windows OS Installation Instructions.

Appendix C and Appendix D lists Other Software Program Installation and BIOS

Recovery Instructions.

Preface

iii

X7SLA-L/X7SLA-H User’s Manual

Conventions Used in the Manual:

Special attention should be given to the following symbols for proper installation and

to prevent damage done to the components or injury to yourself:

Danger/Caution: Instructions to be strictly followed to prevent catastrophic

system failure or to avoid bodily injury

Warning: Critical information to prevent damage to the components or

data loss.

Important: Important information given to ensure proper system installa-

tion or to relay safety precautions.

Note: Additional Information given to differentiate various models or pro-

vides information for correct system setup.

iv

Contacting Supermicro

v

Contacting Supermicro

Headquarters

Address: Super Micro 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: Super Micro 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-Pacic

Address: Super Micro Computer, Inc.

4F, No. 232-1, Liancheng Rd.

Chung-Ho 235, Taipei County

Taiwan, R.O.C.

Tel: +886-(2) 8226-3990

Fax: +886-(2) 8226-3991

Web Site: www.supermicro.com.tw

Technical Support:

Email: support@supermicro.com.tw

Tel: 886-2-8228-1366, ext.132 or 139

vi

X7SLA-L/X7SLA-H User’s Manual

Table of Contents

Preface

About This Manual ........................................................................................................ 3

About This Motherboard ................................................................................................ 3

Manual Organization ..................................................................................................... 3

Conventions Used in the Manual: ................................................................................. 4

Contacting Supermicro .................................................................................................. 5

Chapter 1 Introduction

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

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

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

Graphics Memory Controller Hub (GMCH) ..................................................... 1-9

Intel® I/O Controller Hub 7R (ICH7R) ............................................................ 1-9

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

Recovery from AC Power Loss ..................................................................... 1-10

Onboard Voltage Monitoring ........................................................................ 1-10

Fan Status Monitor with Software ................................................................. 1-10

CPU Overheat LED and Control .................................................................. 1-10

1-4 Power Conguration Settings........................................................................ 1-10

Slow Blinking LED for Suspend-State Indicator ............................................1-11

BIOS Support for USB Keyboard...................................................................1-11

Main Switch Override Mechanism .................................................................1-11

1-5 Power Supply .................................................................................................1-11

1-6 Super I/O ....................................................................................................... 1-12

Chapter 2 Installation

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

Precautions ..................................................................................................... 2-1

Unpacking ....................................................................................................... 2-1

Tools Needed .................................................................................................. 2-2

Location of Mounting Holes ............................................................................ 2-2

2-2 Motherboard Installation .................................................................................. 2-2

Installation Instructions .................................................................................... 2-3

2-4 Installing DDR2 Memory ................................................................................. 2-4

DIMM Installation ............................................................................................ 2-4

Memory Support .............................................................................................. 2-4

2-5 Connectors/I/O Ports ....................................................................................... 2-6

Back Panel Connectors and I/O Ports ............................................................ 2-6

vii

Table of Contents

ATX PS/2 Keyboard and PS/2 Mouse Ports .............................................. 2-7

Universal Serial Bus (USB) ........................................................................ 2-8

Serial Ports ................................................................................................. 2-9

Video Connector ....................................................................................... 2-10

Ethernet Ports ...........................................................................................2-11

Front Control Panel ....................................................................................... 2-12

Front Control Panel Pin Denitions............................................................... 2-13

HDD LED .................................................................................................. 2-13

NIC1/NIC2 LED Indicators ....................................................................... 2-14

Overheat (OH)/Fan Fail LED.................................................................... 2-14

Reset Button ........................................................................................... 2-15

Power Button ........................................................................................... 2-15

2-6 Connecting Cables ........................................................................................ 2-16

External Power Connector ...................................................................... 2-16

Fan Headers ............................................................................................. 2-17

Chassis Intrusion ..................................................................................... 2-18

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

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

LAN Port Enable/Disable ......................................................................... 2-20

CMOS Clear ............................................................................................. 2-21

2-8 Onboard Indicators ........................................................................................ 2-22

LAN Port LEDs ......................................................................................... 2-22

2-9 Serial ATA and HDD Connections ................................................................. 2-23

SATA Connectors ..................................................................................... 2-23

IDE Connector .......................................................................................... 2-24

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 Conguration ....................................................... 3-2

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

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

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

Chapter 4 BIOS

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

Starting BIOS Setup Utility .............................................................................. 4-1

How To Change the Conguration Data ......................................................... 4-1

X7SLA-L/X7SLA-H User’s Manual

viii

Starting the Setup Utility ................................................................................. 4-2

4-2 Main Setup ...................................................................................................... 4-2

4-3 Advanced Setup Congurations...................................................................... 4-4

4-4 Security Settings ........................................................................................... 4-16

4-5 Boot Conguration ........................................................................................ 4-17

4-6 Exit Options ................................................................................................... 4-18

Appendix A POST Error Beep Codes

Recoverable POST Error Beep Codes ......................................................................A-1

Appendix B Installing the Microsoft

®

Windows

®

OS

B-1 Installing the Windows XP/2000/2003 Operating System ..............................B-1

B-1 Installing the Windows XP/2003 OS for Systems with RAID Support ............B-2

Appendix C Software Installation Instructions

C-1 Installing Drivers ..............................................................................................C-1

C-2 Conguring Supero Doctor III .........................................................................C-2

Appendix D - BIOS Recovery

D-1 Recovery Process from a USB Device/Drive (Recommended Method) .............D-1

D-2 Recovery Process from an IDE/SATA ATAPI Disc Drive ....................................D-2

Chapter 1: Introduction

1-1

Chapter 1

Introduction

1-1 Overview

Checklist

Congratulations on purchasing your computer motherboard from an acknowledged

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 the following items are included in the retail box only.

One (1) Supermicro Mainboard•

Two (2) SATA cables (CBL-0044L)•

One (1) IDE hard drive cable (CBL-0036L-03) •

One (1) I/O shield (CSE-PT7L for X7SLA-H, CSE-PT2L for X7SLA-L) •

One (1) Supermicro CD containing drivers and utilities (CDR-X7-UP)•

One (1) User's/BIOS Manual (MNL-1097)•

Two (2) Plastic Mounting Hole Stand-offs (FST-SCRW-0010)•

1-2

X7SLA-L/X7SLA-H User’s Manual

X7SLA-L / X7SLA-H Image

Note: All graphics shown in this manual were based upon the latest PCB Revision

available at the time of publishing of the manual. The motherboard you've received

may or may not look exactly the same as the graphics shown in this manual.

Chapter 1: Introduction

1-3

Motherboard Layout

Important Notes to the User

Jumpers not indicated are for testing only. •

See Chapter 2 for detailed information on jumpers, I/O ports and JF1 front •

panel connections.

" " indicates the location of "Pin 1". •

JF1

J13

JL1

R52

R53

JPL1

JPL2

FAN3

FAN1

FAN_NB

41

FAN2

J3

J51

J46

JP5

JP4

BT1

JBT1

TP_ICH3

Tested to Comply

With FCC Standards

FOR HOME OR OFFICE USE

X7SLA-H

DESIGNED IN USA

NIC

I-SATA3

I-SATA2

I-SATA1

I-SATA0

SLOT7 PCI-E X4 in X8

SLOT6 PCI-E X8

USB2/3

COM2

USB4/5

USB6

JBT1:CMOS CLEAR

IDE

SLOT5 PCI 33MHZ

1-2:ENABLE

2-3:DISABLE

JPL1-2:LAN1/2

INTRUSION

JL1:CHASSIS

LAN2

LAN1

VGA

COM1

X

LED

PWRHDD

NIC

/FF

OHRSTPWR ON

1

JF1

DIMM1A

DIMM1B

JPW1

JPW2 for Device Power Only

KB/MOUSE

USB7

USB0/1

CPU

945GC

ICH7R

1-4

X7SLA-L/X7SLA-H User’s Manual

9

5

4

3

10

11

8

7

6

1

2

12

14 15

16

18

19

23

24

25

26

13

X7SLA-L / X7SLA-H Quick Reference

(not drawn to scale, X7SLA-H shown)

17

20

21

22

JF1

J13

JL1

R52

R53

JPL1

JPL2

FAN3

FAN1

FAN_NB

41

FAN2

J3

J51

J46

JP5

JP4

BT1

JBT1

TP_ICH3

Tested to Comply

With FCC Standards

FOR HOME OR OFFICE USE

X7SLA-H

DESIGNED IN USA

NIC

I-SATA3

I-SATA2

I-SATA1

I-SATA0

SLOT7 PCI-E X4 in X8

SLOT6 PCI-E X8

USB2/3

COM2

USB4/5

USB6

JBT1:CMOS CLEAR

IDE

SLOT5 PCI 33MHZ

1-2:ENABLE

2-3:DISABLE

JPL1-2:LAN1/2

INTRUSION

JL1:CHASSIS

LAN2

LAN1

VGA

COM1

X

LED

PWRHDD

NIC

/FF

OHRSTPWR ON

1

JF1

DIMM1A

DIMM1B

JPW1

JPW2 for Device Power Only

KB/MOUSE

USB7

USB0/1

CPU

945GC

ICH7R

Note 1: USB 7, COM2 and LAN2 are available on the X7SLA-H only.

Note 2: Jumpers that are not indicated are used for factory testing only.

Chapter 1: Introduction

1-5

X7SLA-L / X7SLA-H Quick Reference

Jumpers Label Description Default Setting

JBT1 #17 CMOS Clear See Chapter 2

JPL2 #8 GLAN 2 Enable (X7SLA-H only) Pins 1-2 (Enabled)

JPL1 #7 GLAN 1 Enable Pins 1-2 (Enabled)

Connectors Label Description

Battery #21 Onboard Battery

BIOS #19 SPI BIOS Chip

COM1 #3 Serial Port 1, Back Panel

COM2 #10 Serial Port 2 internal header (X7SLA-H only)

Fans 1~3 #9, 22, 25 System Cooling Fans 1~3

MCH FAN #23 Chipset Fan (MCH FAN)

IDE #20 IDE Hard Drive Connector

I-SATA 0~3 #18 Internal SATA Connectors

JF1 #24 FP Control Panel Header

JPW1 #26 ATX 24-pin Power Connector (Required)

JPW2 #11 4-pin Power Connector (for device power only)

LAN1 #5 Ethernet RJ45 (GB LAN) Connector 1

LAN2 #6 Ethernet RJ45 (GB LAN) Connector 2 (X7SLA-H only)

KB/Mouse #1 PS/2 Keyboard/Mouse

JL1 #16 Chassis Intrusion Header

USB 0/1 #2 Back Panel Universal Serial Bus Ports 0/1

USB 2/3, 4/5, 6 #12, 13, 15 Internal USB Ports

USB 7 #14 Internal "Type A" USB Connector (X7SLA-H only)

VGA #4 Video Graphics Port

1-6

X7SLA-L/X7SLA-H User’s Manual

Motherboard Features

Processor

X7SLA-L: Single Integrated Intel® ATOM™ 230 processor

1.6 GHz, 533 MHz System Bus•

512K Cache•

4 Watts•

X7SLA-H: Single Integrated Dual Core Intel ATOM 330 processor

1.6 GHz, 533 MHz System Bus•

1 MB Cache•

8 Watts•

Memory

Supports unbuffered Non-ECC DDR2 up to 2 GB (DDR2 533/400)•

Chipset

Intel® 945GC GMCH (North Bridge), ICH7R (South Bridge) •

Intel Graphics Media Accelerator (GMA) 950•

Expansion Slots

One (1) PCI-Express x8 slot•

One (1) PCI-Express x4 (in x8 physical) slot•

One (1) 32-bit PCI 33MHz slots•

BIOS

8 Mb AMI BIOS•

®

, SPI Flash BIOS

DMI 2.3, PCI 2.2, ACPI 1.0/2.0/3.0, USB Keyboard support, SMBIOS 2.5, and •

Plug and Play (PnP)

PC Health Monitoring

Onboard voltage monitors for CPU Cores, Chipset Voltage, Memory Voltage •

+1.8V, +3.3V, +3.3V standby, VBat, 12V, 5V

Fan status monitor with rmware 4-pin (Pulse Width Modulation) •

Low noise fan speed control•

CPU 1-Phase-switching voltage regulator•

SuperoDoctor III, Watch Dog/NMI•

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

CPU Thermal Trip support•

Thermal Monitor 2 (TM2) support•

Chapter 1: Introduction

1-7

ACPI Features

Slow blinking LED for suspend state indicator

•

Main switch override mechanism•

Onboard I/O

Built-in ICH7R SATA Controller, 4 connectors for 4 devices (with support for RAID •

0, RAID 1, RAID 10 and RAID 5 in the Windows OS environment)

One PS/2 mouse and one PS/2 keyboard ports•

One IDE controller that supports up to two IDE devices•

One onboard VGA port•

Winbond Super I/O controller 83627DHG-P•

X7SLA-H Only

Two Fast UART 16550-compatible serial ports (one on back panel, one •

internal header)

Dual Realtek RTL8111C-GR Gigabit Ethernet Controllers•

Eight USB 2.0 ports & headers (USB0~USB7): Two ports on the backpanel, •

one Type A internal USB header, and ve USB headers for front panel ac-

cess

X7SLA-L Only

One Fast UART 16550-compatible serial port (on back panel)•

Single Realtek RTL8111C-GR Gigabit Ethernet Controller•

Seven USB 2.0 ports & headers (USB0~USB6): Two ports on the backpanel, •

and ve USB headers for front panel access

Other

Chassis Intrusion Header and Detection

•

Lead free•

CD Utilities

BIOS ash upgrade utility

•

Drivers and software for Intel® 945GC chipset utilities •

Dimensions

Flex ATX form factor, 9.0" x 7.5" (228.6 x 190.5 mm)•

1-8

X7SLA-L/X7SLA-H User’s Manual

X7SLA-L / X7SLA-H Block Diagram

Note: This is a general block diagram. Please see the Motherboard Features pages

for details on the features of the motherboard.

Chapter 1: Introduction

1-9

1-2 Chipset Overview

The Intel® 82945GC contains two components: GMCH (North Bridge) and ICH7R

(South Bridge). The GMCH is used for the host bridge, and the ICH7R, for the I/O

subsystems.

Graphics Memory Controller Hub (GMCH)

The GMCH manages the data ow between its four interfaces: the processor

interface (FSB), the system memory interface (DRAM controller), the integrated

graphics interface, the External Graphics interface, and the I/O Controller through

DMI interface. It provides bus arbitration between the four interfaces when each

initiates transactions. The GMCH supports a 32-byte Cache Line, decoding up to 4

GB (2GB for the 945GC) of the CPU's usable memory address space. The GMCH

also supports one or two channels of SDRAM and the PCI Express-based graphics

attached devices.

The Intel® 945GC platform supports the seventh generation I/O Controller Hub (In-

tel® ICH7R) to provide a multitude of I/O related features. The Direct Media Interface

(DMI) provides the chip-to-chip connection between the GMCH and the ICH7R.

Intel® I/O Controller Hub 7R (ICH7R)

The I/O Controller (ICH7R) provides the data buffering and interface arbitration

required for the system to operate efciently. It also provides the bandwidth needed

for the system to maintain its peak performance. The ICH7R supports PCI slots, Se-

rial ATA ports, USB 2.0 ports and dual channel IDE devices. In addition, the ICH7R

offers the Intel Matrix Storage Technology which provides various RAID options for

data protection and rapid data access. It also supports the next generation of client

management through the use of PROActive technology in conjunction with Intel's

next generation Gigabit Ethernet controllers.

1-10

X7SLA-L/X7SLA-H User’s Manual

1-3 PC Health Monitoring

This section describes the PC health monitoring features of the X7SLA-L/X7SLA-H.

The motherboard has an onboard System Hardware Monitor chip that supports PC

health monitoring.

Recovery from AC Power Loss

BIOS provides a setting for you to determine how the system will respond when

AC power is lost and then restored to the system. You can choose for the system

to remain powered off (in which case you must hit the power switch to turn it back

on) or for it to automatically return to a power on state. See the Power Lost Control

setting in the BIOS chapter of this manual to change this setting. The default set-

ting is Last State.

Onboard Voltage Monitoring

The onboard voltage monitor will scan the following voltages continuously: CPU

Cores, Chipset Voltage, Memory Voltage (+1.8V), +3.3V, +3.3V standby, +5V, +12V,

and Vbat. Once a voltage becomes unstable, it will give a warning or send an error

message to the screen. The User can adjust the voltage thresholds to dene the

sensitivity of the voltage monitor by using SD III.

Fan Status Monitor with Software

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

Doctor III.

CPU Overheat LED and Control

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

in the BIOS. This allows the user to dene an overheat temperature. When this

temperature reaches the pre-dened threshold, 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CongurationSettings

This section describes features of your motherboard that deal with power and

power settings.

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 presses the power button, the system will enter

a SoftOff state. The monitor will be suspended and the hard drive will spin down.

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

and no power will be provided to the motherboard.

1-5 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 X7SLA-L/X7SLA-H accommodates 12V ATX power supplies. Al-

though most power supplies generally meet the specications required by the CPU,

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

recommended.

1-12

X7SLA-L/X7SLA-H User’s Manual

1-6 Super I/O

The Super I/O provides two high-speed, 16550 compatible serial communication

ports (UARTs). Each UART includes a 16-byte send/receive FIFO, a programmable

baud rate generator, complete modem control capability and a processor interrupt

system. 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 sup-

port higher speed modems.

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

and Power Interface), which includes support of legacy and ACPI power manage-

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

to reduce power consumption.

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