MSI K7T266 Pro User Manual

Introduction

1-1

The K7T266 Pro (MS-6380) ATX mainboard is a high-performance
computer mainboard based on VIA® Apollo KT266 chipset and designed for
the AMD® Athlon or Duron (PGA) processor for inexpensive business/
personal desktop markets.

The Apollo KT266 chipset consists of the VT8366 Super Northbridge
and the VT8233 Southbridge. VT8366 provides a PC1600/2100 DDR (Double
Data Rate) solution with support for 200/266MHz Front Side Bus. By using
PC2100 DDR technology, the VT8366 enables 2.1GB/second peak bandwidth
between system memory and Northbridge. The chipset doubles the commu­nication bandwidth between the North and South Bridge to 266MB/sec
through a high-speed V-Link bus. With AGP 4X interface, VT8366 boosts
system performance for 3D graphics and video program.

The VT8233 Southbridge integrates many peripheral controllers
including dual channel UltraDMA-33/66/100 master mode EIDE controller,
AC-link interface, LPC interface, USB controller etc. The VT8233 is compat­ible with PCI-2.2 specification and supports advanced power management.

The Apollo KT266 chipset provides the optimized performance for
the PC systems based on the latest AMD® processors.

This chapter includes the following topics:

Mainboard Specification 1-2
Mainboard Layout 1-4
Quick Components Guide 1-7
Key Features 1-8
MSI Special Features 1-9

Chapter 1.

Introduction



Chapter 1

1-2

CPU

! Support Socket A (Socket-462) for AMD® Athlon /Duron processor
! Support 600MHz up to 1.4GHz processor

Chipset

! VIA® VT8366 chipset (552 BGA)

- FSB @200/266MHz

- AGP 4X and PCI Advanced high performance memory controller

! VIA® VT8233 chipset (376 BGA)

- High Bandwidth V-link Client controller

- Integrated Faster Ethernet LPC (Optional CNR card support)

- Integrated Hardware Sound Blaster/Direct Sound AC97 audio

- Ultra DMA 33/66/100 master mode PCI EIDE controller

- ACPI

Clock Generator

! 100/133MHz clocks are supported

Main Memory

! Support six memory banks using three 184-pin DDR DIMMs
! Support a maximum memory size up to 3GB
! Support 2.5v DDR SDRAM DIMM

Slots

! One AGP (Accelerated Graphics Port) or AGP PRO slot

- AGP specification compliant

- Support AGP 2.0 1x/2x/4x

! One CNR (Communication Network Riser) slot
! Five 32-bit Master PCI Bus slots
! Supports 3.3V/5V PCI bus Interface

On-Board IDE

! An IDE controller on the VIA® VT8233 chipset provides IDE HDD/CD-

ROM with PIO, Bus Master and Ultra DMA 33/66/100 operation modes

! Can connect up to 4 IDE devices

Promise 20265R On-Board (Optional)

! Support IDE RAID 0 or 1

Mainboard Specification

Introduction

1-3

! Can connect a Master and a Slave drive to each IDE RAID connector
! The two connectors support hard disk drives only

Note: Only the two Master hard disk drives will adopt RAID function.

USB Interface

! USB 2.0 HC On Board (for K7T266 Pro-RU only )

- Support 4 USB 2.0 ports via external bracket

! USB PC2PC Networking Function

- Controlled by USB PC2PC Controller

- Supported by the JUSB2 pin header

! 6 USB Ports (for K7T266 Pro & K7T266 Pro-R)

- Controlled by VT8233 Soughbirdge

- 2 rear ports and 4 ports supported by JUSB2 & JUSB3

Audio

! Chip integrated (2 channel S/W audio)

- Direct Sound AC97 Audio

On-Board Peripherals

! On-Board Peripherals include:

- 1 floppy port supports 2 FDD with 360K, 720K, 1.2M, 1.44M and

2.88Mbytes

- 2 serial ports (COMA + COMB)

- 1 parallel port supporting SPP/EPP/ECP mode

- 1 IrDA connector for SIR/ASKIR/HPSIR

- 1 Audio/Game port

BIOS

! The mainboard BIOS provides Plug & Play BIOS which detects the

peripheral devices and expansion cards of the board automatically

! The mainboard provides a Desktop Management Interface (DMI) func-

tion which records your mainboard specifications

Dimension

! ATX Form Factor (30.4 cm X 23.5 cm)

Mounting

! 6 mounting holes

Chapter 1

1-4

Mainboard Layout

MS-6380 ATX Mainboard

(K7T266 Pro)

JMDM

J

A

U

X

JCD

Top: Mouse
Bottom:
Keyboard

USB Ports

Top: Parallel
Port

Bottom:
COM A &
COM B

Top : Ga me
Port

Bottom:
Audio Ports

JKBV1

CFAN1

A

T

X

P

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w

e

r

S

u

p

p

l

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Socket 462

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Winbond

W83627 HF-AW

Codec

,,4

,,4

1

,

-



1

,

-

.

,

,



BATT

+

AGP Slot

PCI Slot 2

PCI Slot 3

CNR Slot

BIOS

SFAN1

81)

86& !!

JMDM1

,,4!

PSFAN1

J8

PCI Slot 1

PCI Slot 4

PCI Slot 5

JUSB2

JUSB3

JGL1

JFP1

JBAT1

J6

Diagnostic LED

PC2PC

Controller

MS-6380 provides three types of models to meet consumers

diverse needs: K7T266 Pro, K7T266 Pro-R and K7T266 Pro-RU.

Introduction

1-5

JMDM

J

A

U

X

JCD

Top: Mouse
Bottom:
Keyboard

USB Ports

Top: Parallel
Port

Bottom:
COM A &
COM B

Top : Ga me
Port

Bottom:
Audio Ports

JKBV1

CFAN1

A

T

X

P

o

w

e

r

S

u

p

p

l

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Socket 462

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Codec

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.

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BATT

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AGP Pro Slot

PCI Slot 2

PCI Slot 3

CNR Slot

BIOS

SFAN1

81)

86& !!

JMDM1

,,4!

PSFAN1

J8

PCI Slot 1

PCI Slot 4

PCI Slot 5

IDE4

IDE3

P
R
O
M
IS

E

2
0
2
6
5
R

JUSB2

JUSB3

JGL1

JFP1

JBAT1

JWR1

J6

Diagnostic LED

PC2PC

Controller

MS-6380 ATX Mainboard

(K7T266 Pro-R)

Chapter 1

1-6

JMDM

J

A

U

X

JCD

Top: Mouse
Bottom:
Keyboard

USB Ports

Top: Parallel
Port

Bottom:
COM A &
COM B

Top : Ga me
Port

Bottom:
Audio Ports

JKBV1

CFAN1

A

T

X

P

o

w

e

r

S

u

p

p

l

y

Socket 462

81)

86&!$$

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W83627 HF-AW

Codec

,,4

,,4

1

,

-



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,

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AGP Pro Slot

PCI Slot 2

PCI Slot 3

CNR Slot

BIOS

SFAN1

81)

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JMDM1

,,4!

PSFAN1

J8

PCI Slot 1

PCI Slot 4

PCI Slot 5

NEC
USB 2.0
Host
Controller

IDE4

IDE3

P
R
O
M
IS

E

2
0
2
6
5
R

JUSB1

JUSB2

JUSB3

JGL1

JFP1

JBAT1

JWR1

J6

Diagnostic LED

PC2PC

Controller

MS-6380 ATX Mainboard

(K7T266 Pro-RU)

Introduction

1-7

Quick Components Guide

Component Function Reference

DDR1~3 Installing DDR SDRAM modules See p. 2-5~2-6

Socket 462 Installing CPU See p. 2-2~2-4

CFAN1 Connecting to CPUFAN See p. 2-20

SFAN1 Connecting to SYSTEM FAN See p. 2-20

PSFAN1 Connecting to Power Supply FAN See p. 2-20

ATX Power Supply Installing power supply See p. 2-7

IDE1& IDE2 Connecting to IDE hard disk drive See p.2-13

IDE3& IDE4 Connecting to IDE RAID HDD See p.2-14

FDD1 Connecting to floppy disk drive See p.2-12

JUSB1~3 Connecting to USB interfaces See p. 2-22~2-26

PCI Slot 1~5 Installing expansion cards See p. 2-30

AGP/AGP PRO Slot Installing AGP (Pro) cards See p. 2-30

CNR Slot Installing expansion cards See p. 2-30

JMDM1 Connecting to modem module See p. 2-18

JBAT1 Clearing CMOS data See p. 2-28

JFP1 Connecting to case See p. 2-15

JGL1 Connecting to power saving LED See p. 2-17

J6 Connecting to IR module See p. 2-19

J8 Connecting to chassis intrusion switch See p. 2-18

JWR1 Connecting to AGP Pro cards power cable See p. 2-27

JKBV1 Enabling Keyboard wake up function See p. 2-29

Chapter 1

1-8

! ATX Form Factor
! CPU: Socket A for AMD

®

Duron/Athlon Processor

! Memory: 3 PC1600/PC2100 DDR DIMMs
! Slot: 1 AGP/AGP PRO slot, 1 CNR slot, 5 PCI slots
! I/O: 2 serial ports. 1 parallel port, 6 USB 1.1 ports, 1 floppy port, 1 IrDA

connector, 3 Audio/1 Game port (for K7T266 Pro & K7T266 Pro-R)

! I/O: 2 serial ports. 1 parallel port, 4 USB 1.1 & 4 USB 2.0 ports, 1 floppy

port, 1 IrDA connector, 3 Audio/1 Game port ( for K7T266 Pro-RU)

! USB Interface: USB 1.1 PC to PC Networking & USB 2.0 HC On-Board

(Optional)

! 2 IDE RAID connectors (Optional)
! Fuzzy Logic III overclocking utility
! D-LED -- 4 LEDs embedded in the mainboard
! PC Alert III system hardware monitor
! Audio: 2 Channel S/W audio integrated
! PCI 2.2 LAN Wake up Function
! Modem (External/Internal) Ring Wake up Function

Key Features

Introduction

1-9

PC Alert III

The PC AlertTM III is an utility you can find in the CD-ROM disk. The
utility is just like your PC doctor that can detect the following PC hardware
status during real time operation:
* monitor CPU & system temperatures
* monitor fan speed(s)
* monitor system voltage
* monitor chassis intrusion
If one of the items above is abnormal, the program main screen will be immedi­ately shown on the screen, with the abnormal item highlighted in red. This will
continue to be shown,until user disables the warning.

MSI Special Features

Note: Items shown on PC Alert III vary depending on your systems status.

Chapter 1

1-10

Features:

! Network Management

- Monitoring & remote control

! Basic System Utilities

- Scandisk & Defragment to maintain your HDD

! 3D Graphics Design

- Enables a more friendly user interface

! Sofware Utilities

- SoftCooler Optimized Cooling

Introduction

1-11

Fuzzy Logic III

The Fuzzy Logic III utility allows users to overclock the CPU FSB
(Front Side Bus) frequency in the Windows environment. Select the CPU
frequency you prefer and click Go to apply the frequency or click Save
allowing the system to run at the specified frequency each time when the
system is powered on.

Features:

! Display Current System Status

- CPU Fan

- CPU Temp.

- Vcore

- Vio

- Memory Clock

- CPU Clock

- AGP Clock

- PCI Clock

! Adjust CPU FSB Frequency

Chapter 1

1-12

D-LED



D-LED Description





System Power ON

- The D-LED will hang here if the processor is damaged or not

installed properly.







Early Chipset Initialization







Memory Detection Test

- Testing onboard memory size. The D-LED will hang if the

memory module is damaged or not installed properly.





Decompressing BIOS image to RAM for fast booting.





Initializing Keyboard Controller.





Testing VGA BIOS

- This will start writing VGA sign-on message to the screen.

Red

Green

The D-LED uses graphic signal display to help
users understand their system. Four LEDs embedded in
the mainboard provide up to 16 combinations of signals to
debug the system. The 4 LEDs can debug all problems that
fail the system, such as VGA, RAM or other failures. This
special feature is very useful for the overclocking users.
These users can use the feature to detect if there are any
problems or failures.

1

2

3

4

Diagnostic LED

1 2 3 4

Introduction

1-13

Processor Initialization

- This will show information regarding the processor (like brand

name, system bus, etc)

Testing RTC (Real Time Clock)

Initializing Video Interface

- This will start detecting CPU clock, checking type of video

onboard. Then, detect and initialize the video adapter.

BIOS Sign On

- This will start showing information about logo, processor

brand name, etc.

Testing Base and Extended Memory

- Testing base memory from 240K to 640K and extended

memory above 1MB using various patterns.

Assign Resources to all ISA.

Initializing Hard Drive Controller

- This will initialize IDE drive and controller.

Initializing Floppy Drive Controller

- This will initializing Floppy Drive and controller.

Boot Attempt

- This will set low stack and boot via INT 19h.

Operating System Booting

Hardware Setup

2-1

Chapter 2.

Hardware Setup

This chapter provides you with the information about hardware setup
procedures. While doing the installation, be careful in holding the compo­nents and follow the installation procedures. For some components, if you
install in the wrong orientation, the components will not work properly.

Use a grounded wrist strap before handling computer components.
Static electricity may damage the components.

Central Processing Unit (CPU) 2-2
Memory 2-5
Power Supply 2-7
Back Panel 2-8
Connectors 2-12
Jumpers 2-28
Slots 2-30

This chapter contains the following topics:

Chapter 2

2-2

1. Pull the lever sideways away

from the socket. Then, raise
the lever up to a 90-degree
angle.

3. Hold the CPU firmly, and

then press the lever down to
complete the installation.

Central Processing Unit: CPU

CPU Installation Procedures

2. Look for the cut edge. The

cut edge should point
towards the lever pivot. The
CPU will only fit in the
correct orientation.

The mainboard supports AMD® AthlonTM and DuronTM processor.

The mainboard uses a CPU socket called Socket A for easy CPU installation.

Make sure the CPU has a Heat Sink and a cooling fan attached on the top to
prevent overheating. If you do not find the Heat Sink and cooling fan,

contact your dealer to purchase and install them before turning on the
computer.

Open Lever

Cut edge

Sliding

Plate

Close
Lever

Hardware Setup

2-3

Thermal Issue for CPU

As processor technology pushes to faster speeds and higher
performance, thermal management becomes increasingly cru-

cial when building computer systems. Maintaining the proper
thermal environment is key to reliable operation. As such, the processor must
be maintained in the specified thermal requirements. AMD recommends the
use of high performance thermal interface material.

AMD Athlon/Duron processor with a speed of 600MHz and above re­quires LARGER heatsink and fan. You also need to add thermal grease be­tween the CPU and heatsink to improve heat dissipation. Then, make sure that
the CPU and heatsink are securely fastened and in good contact with each
other. These are needed to prevent damaging the processor and ensuring
reliable operation.

You can check AMDs web site for more information on proper cooling: http:/

/www.amd.com/products/cpg/athlon/pdf/cooling_guide.pdf

!

WARNING!

Chapter 2

CPU Core Speed Derivation Procedure

If CPU Clock = 100MHz

Core/Bus ratio = 7

then CPU core speed = Host Clock x Core/Bus ratio

= 100MHz x 7
= 700MHz

CPU Clock Frequency Selection through BIOS

To set the clock frequency of the CPU installed on the motherboard,

refer to Hardware Monitor Setup of BIOS on page 3-26.

The default hardware configuration for CPU Clock Frequency is 100MHz.
Therefore, to use a 133MHz CPU, you need to adjust the CPU clock up to
133MHz by changing the CPU clock in the BIOS Setup utility.

!

WARNING!

While replacing the CPU, always turn off the ATX
power supply or unplug the power cable of the ATX
power supply from grounded outlet first to ensure the
safety of CPU.

2-4

Hardware Setup

2-5

The mainboard provides 3 sockets for 184-pin, 2.5V DDR DIMM with 6
memory banks. To operate properly, at least one DIMM module must be
installed.

Memory

DDR DIMM Slots
(DDR 1~3)

You can install PC1600/PC2100 DDR SDRAM modules on the DDR

DIMM slots (DIMM 1~3).

DDR (Double Data Rate) SDRAM is similar to conventional SDRAM,
but doubles the rate by transfering data twice per cycle. It transfers data on
both the rising and falling edges of the clock. Conventional SDRAM only
uses the rising edge of the clock to transfer data. Therefore, conventional
SDRAM is called SDR (Single Data Rate) SDRAM.

DDR SDRAM uses 2.5 volts as opposed to 3.3 volts used in SDR
SDRAM, and requires 184-pin DIMM modules rather than 168-pin DIMM
modules used by SDR SDRAM. DDR SDRAM is also known as SDRAM-II,
DDR DRAM and DSDRAM (Double-Speed DRAM).

Two types of DDR are available at the time of writing: PC1600 & PC2100.
PC1600 DDR SDRAM running at 100MHz will produce about 1.6GB/s memory
bandwidth. PC2100 running at 133MHz will produce 2.1GB/s memory
bandwidth. High memory bandwidth makes DDR an ideal solution for high
performance PC, workstations and servers.

Chapter 2

2-6

DDR Module Installation

You can install either single sided or double sided 184-pin DDR DIMM
modules into DDR DIMM slots to meet your needs. Different from the SDR
DIMM, the DDR DIMM has only one notch on the center of module. The
number of pins on either side of the breaks are different. The module will only
fit in the right orientation.

1. Insert the DIMM module vertically into the DDR DIMM slot. Make sure the

notch is on the right orientation.

2. The plastic clips at sides of the DIMM slot will automatically close.

Volt

Single Sided DIMM

Double Sided DIMM

Hardware Setup

2-7

Power Supply

ATX 20-Pin Power Supply

This connector allows you to connect to an ATX power supply. To
connect to the ATX power supply, make sure the plugs of the power supply is
inserted in the proper orientation and the pins are aligned. Then push down
the power supply firmly into the connector.

ATX

Power Connector

The mainboard supports ATX power supply for the power system.
Before inserting the power supply connector, always make sure that all compo­nents are installed properly to ensure that no damage will be caused.

10

1

20

11

PIN SIGNAL

11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V

PIN SIGNAL

1 3.3V
2 3.3V
3 GND
45V
5 GND
65V
7 GND
8 PW_OK
9 5V_SB
10 12V

Chapter 2

Back Panel

The Back Panel provides the following connectors:

Mouse

Keyboard USB

Parallel

COM A COM B L-out L-in

Midi/Joystick

MIC

Mouse Connector

The mainboard provides a standard PS/2® mouse mini DIN connector
for attaching a PS/2® mouse. You can plug a PS/2® mouse directly into this
connector.

6

4

2

PS/2 Mouse (6-pin Female)

5

3

1

Pin Definition

PIN SIGNAL DESCRIPTION

1 Mouse DATA Mouse DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Mouse Clock Mouse clock
6 NC No connection

2-8

Hardware Setup

Keyboard Connector

The mainboard provides a standard PS/2® keyboard mini DIN connec­tor for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into
this connector.

Pin Definition

PIN SIGNAL DESCRIPTION

6

21

PS/2 Keyboard (6-pin Female)

5

34

1 Keyboard DATA Keyboard DATA
2 NC No connection
3 GND Ground
4 VCC +5V
5 Keyboard Clock Keyboard clock
6 NC No connection

USB Connectors

The mainboard provides a UHCI (Universal Host Controller Interface)
Universal Serial Bus root for attaching USB devices such as keyboard, mouse
or other USB-compatible devices. You can plug the USB device directly into
ths connector.

USB Port Description

1 2 3 4

5 6 7 8

USB Ports

PIN SIGNAL DESCRIPTION

1 VCC +5V
2 -Data 0 Negative Data Channel 0
3 +Data0 Positive Data Channel 0
4 GND Ground
5 VCC +5V
6 +Data 1 Positive Data Channel 1
7 -Data 1 Negative Data Channel 1
8 GND Ground

2-9

Chapter 2

2-10

Parallel Port Connector

The mainboard provides a 25-pin female centronic connector for LPT.
A parallel port is a standard printer port that supports Enhanced Parallel Port
(EPP) and Extended Capabilities Parallel Port (ECP) mode.

13

1

1425

PIN SIGNAL DESCRIPTION

1 STROBE Strobe
2 DATA0 Data0
3 DATA1 Data1
4 DATA2 Data2
5 DATA3 Data3
6 DATA4 Data4
7 DATA5 Data5
8 DATA6 Data6
9 DATA7 Data7
10 ACK# Acknowledge
11 BUSY Busy
12 PE Paper End
13 SELECT Select
14 AUTO FEED# Automatic Feed
15 ERR# Error
16 INIT# Initialize Printer
17 SLIN# Select In
18 GND Ground
19 GND Ground
20 GND Ground
21 GND Ground
22 GND Ground
23 GND Ground
24 GND Ground
25 GND Ground1

Pin Definition

Hardware Setup

2-11

Serial Port Connector: COM A & COM B

The mainboard has two 9-pin male DIN connectors for serial port COM

A and COM B. You can attach a serial mouse or other serial devices.

1 2 3 4 5

6 7 8 9

PIN SIGNAL DESCRIPTION

1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready)
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 RI Ring Indicate

9-Pin Male DIN Connectors

Pin Definition

Joystick/Midi Connectors

You can connect a joystick or game pad to this connector.

Audio Port Connectors

Line Out is to connect speakers or headphones. Line In is a connector
for external CD player, Tape player or other audio devices. Mic is used to
connect to a microphone.

Line Out

Line In MIC

Chapter 2

2-12

FDD1

12

33

34

The mainboard provides connectors to connect to FDD, IDE HDD,
case, modem, LAN, USB Ports, IR module and CPU/Power supply/System
FAN.

Floppy Disk Drive Connector: FDD1

The mainboard provides a standard floppy disk drive connector that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types.

Connectors

Hardware Setup

2-13

Hard Disk Connectors: IDE1 & IDE2

The mainboard uses an IDE controller on the VIA® VT8233 chipset that
provides PIO mode 0-4, Bus Master, and Ultra DMA 33/66/100 modes. It has
two HDD connectors IDE1 (Primary) and IDE2 (Secondary). You can connect
up to four hard disk drives, CD-ROM or 120MB Floppy to IDE1 and IDE2.

IDE1 (Primary IDE Connector)

- The first hard disk drive should always be connected to IDE1. You can
connect a Master and a Slave drive to IDE1.
IDE2 (Secondary IDE Connector)

- You can connect a Master and a Slave drive to IDE2.

Primary IDE Connector

11

Secondary IDE Connector

!TIP:

If you install two hard disks on cable, you must configure the second
drive to Slave mode by setting its jumper. Refer to the hard disk docu­mentation supplied by hard disk vendors for jumper setting instructions.

2

40 39

2

40 39

Chapter 2

2-14

IDE RAID Connectors: IDE3 & IDE4 (Optional)

The mainboard offers a low-cost RAID (Redundant Array of Indepen­dent Disks) solution by integrating two IDE RAID connectors that support
PIO mode 0-4, Bus Master, and Ultra DMA 33/66/100 modes. The IDE RAID
connectors allow you to connect Ultra ATA/DMA hard disks and use RAID
technology for high performance, data security and fault tolerance. The con­nectors support RAID 0 (striping) and RAID 1 (mirroring).

IDE RAID Connectors

- You can connect a Master and a Slave drive to each IDE RAID connector.

- For more information on IDE RAID, please refer to IDE RAID Manual.

1

2

39

40

1

2

39

40

IDE3

IDE4

!TIP:

If you install two hard disks on cable, you must configure the second
drive to Slave mode by setting its jumper. Refer to the hard disk docu­mentation supplied by hard disk vendors for jumper setting instructions.

Hardware Setup

2-15

Case Connector: JFP1

The case connector block JFP1 allows you to connect to the Power
Switch, Reset Swtich, Keylock, Speaker, Power LED, and HDD LED on the
case.

JFP1

Power
Switch

Power
LED

+

Reset
Switch

HDD
LED

+

Speaker

Buzzer

(short pin)

14

15

Keylock

Chapter 2

2-16

Power Switch

Connect to a 2-pin push button switch.

Reset Switch

Reset switch is used to reboot the system rather than turning the power ON/
OFF. Avoid rebooting while the HDD is working. You can connect the
Reset switch from the system case to this pin.

Power LED

The Power LED is lit while the system power is on.

Speaker

Speaker from the system case is connected to this pin.
If on-board Buzzer is available, then:
Always short pin 14-15 to enable on-board Buzzer

HDD LED

HDD LED shows the activity of a hard disk drive connected to the IDE1 or
IDE2 connector. Avoid turning the power off while the HDD is working.
You can connect the HDD LED from the system case to this pin.

Keylock

Keylock allows you to disable the keyboard for security purpose. You can
connect the keylock to this pin.

Hardware Setup

2-17

Power Saving LED Connector: JGL1

JGL1 is connected to a power saving LED. There are two types of LED
that you can use: 3-pin or 2-pin (ACPI request) LED. If connected to a 2-pin
LED, the LED light is green when system in turned on, and turns to orange
color while entering the sleep state. For 3-pin LED, the LED is lit when system
is on, and blinks during the sleep state.

1-2 Single Color 1-2 Dual Color
1-3 Blink

3-Pin LED 2-Pin LED



!

Green Color

Orange Color



!

Green Color

Orange Color

JGL1

1