IBM PCM-6890B User Manual

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PCM-6890B

All-in-One FC/Socket 370 Celeron Single Board Computer with LCD, Ethernet, Audio, & 4 COMs

FCC STATEMENT

THIS DEVICE COMPLIES WITH PART 15 FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE. (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.

THIS EQUIPMENT HAS BEEN TESTED AND FOUND TO COMPLY WITH THE LIMITS FOR A CLASS "A" DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC RULES. THESE LIMITS ARE DESIGNED TO PROVIDE REASONABLE PROTECTION AGAINTST HARMFUL INTERFERENCE WHEN THE EQUIPMENT IS OPERATED IN A COMMERCIAL ENVIRONMENT. THIS EQUIPMENT GENERATES, USES, AND CAN RADIATE RADIO FREQUENCY ENERGY AND , IF NOT INSTATLLED AND USED IN ACCORDANCE WITH THE INSTRUCTION MANUAL, MAY CAUSE HARMFUL INTERFERENCE TO RADIO COMMUNICATIONS. OPERATION OF THIS EQUIPMENT IN A RESIDENTIAL AREA IS LIKELY TO CAUSE HARMFUL INTERFERENCE IN WHICH CASE THE USER WILL BE REQUIRED TO CORRECT THE INTERFERENCE AT HIS OWN EXPENSE.

Copyright Notice

This document is copyrighted, 2000. All rights are reserved. The original manufacturer reserves the right to make improvements to the products described in this manual at any time without notice.

No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the prior written permission of the original manufacturer. Information provided in this manual is intended to be accurate and reliable. However, the original manufacturer assumes no responsibility for its use, nor for any infringements upon the rights of third parties which may result from its use.

Acknowledgements

AMD is a trademark of Advanced Micro Devices, Inc. AMI is a trademark of American Megatrends, Inc.

Award is a trademark of Award Software International, Inc. Cyrix is a trademark of Cyrix Corporation.

IBM, PC/AT, PS/2, and VGA are trademarks of International Business Machines Corporation.

Intel and Pentium II are trademarks of Intel Corporation. Microsoft Windows ® is a registered trademark of Microsoft Corp. SMC is a trademark of Standard Microsystems Corporation.

RTL is a trademark of Realtek Semi-Conductor Co., Ltd. C&T is a trademark of Chips and Technologies, Inc.

UMC is a trademark of United Microelectronics Corporation. ITE is a trademark of Integrated Technology Express, Inc. SiS is a trademark of Silicon Integrated Systems Corp.

VIA is a trademark of VIA Technology, Inc.

All other product names or trademarks are properties of their respective owners.

Part No. 2047689010 Manual PCM-6890B 1st Edition

Prepared in Taiwan Aug 2000

A Message to the Customer

AAEON Customer Services

Each and every AAEON product is built to the most exacting specifications to ensure reliable performance in the harsh and demanding conditions typical of industrial environments. Whether your new AAEON equipment is destined for the laboratory or the factory floor, you can be assured that your product will provide the reliability and ease of operation for which the name AAEON has come to be known.

Your satisfaction is our primary concern. Here is a guide to AAEON’s customer services. To ensure you get the full benefit of our services, please follow the instructions below carefully.

Technical Support

We want you to get the maximum performance from your products. So if you run into technical difficulties, we are here to help. For the most frequently asked questions, you can easily find answers in your product documentation. These answers are normally a lot more detailed than the ones we can give over the phone.

So please consult this manual first. If you still cannot find the answer, gather all the information or questions that apply to your problem, and with the product close at hand, call your dealer. Our dealers are well trained and ready to give you the support you need to get the most from your AAEON products. In fact, most problems reported are minor and are able to be easily solved over the phone.

In addition, free technical support is available from AAEON engineers every business day. We are always ready to give advice on application requirements or specific information on the installation and operation of any of our products.

Product Warranty

AAEON warrants to you, the original purchaser, that each of its products will be free from defects in materials and workmanship for two years from the date of purchase.

This warranty does not apply to any products which have been repaired or altered by persons other than repair personnel authorized by AAEON, or which have been subject to misuse, abuse, accident or improper installation. AAEON assumes no liability under the terms of this warranty as a consequence of such events.

Because of AAEON’s high quality-control standards and rigorous testing, most of our customers never need to use our repair service. If an AAEON product is defective, it will be repaired or replaced at no charge during the warranty period. For out-of-warranty repairs, you will be billed according to the cost of replacement materials, service time, and freight. Please consult your dealer for more details.

If you think you have a defective product, follow these steps:

1.Collect all the information about the problem encountered. (For example, CPU type and speed, AAEON products used, other hardware and software used, etc.) Note anything abnormal and list any on-screen messages you get when the problem occurs.

2.Call your dealer and describe the problem. Please have your manual, product, and any helpful information readily available.

3.If your product is diagnosed as defective, obtain an RMA (return material authorization) number from your dealer. This allows us to process your return more quickly.

4.Carefully pack the defective product, a fully-completed Repair and Replacement Order Card and a photocopy proof of purchase date (such as your sales receipt) in a shippable container. A product returned without proof of the purchase date is not eligible for warranty service.

5.Write the RMA number visibly on the outside of the package and ship it prepaid to your dealer.

Packing list

Before you begin installing your card, please make sure that the following materials have been shipped:

1 PCM-6890B All-in-One Single Board Computer

1 Quick Installation Guide

1 CD-ROM contains the followings:

User’s Manual (this manual in PDF file)

Ethernet drivers and utilities

VGA drivers and utilities

Audio drivers and utilities

Lastest BIOS (as of the CD-ROM was made)

If any of these items are missing or damaged, contact your distributor or sales representative immediately.

Notice

Dear Customer,

Thank you for purchasing the PCM-6890B board. This user’s manual is designed to help you to get the most out of the PCM6890B, please read it thoroughly before you install and use the board. The product that you have purchased comes with an twoyear limited warranty, but AAEON will not be responsible for misuse of the product. Therefore, we strongly urge you to first read the manual before using the product.

To receive the lastest version of the user manual, please visit our Web site at:

http://www.aaeon.com

Contents

 

Chapter 1: General Information.......................

1

Introduction ... .................................................................

2

Features ..................................................................................

3

Specifications .........................................................................

4

Board layout ...........................................................................

7

Board dimensions .................................................................

8

Chapter 2: Installaion .........................................

9

Jumpers and connectors ....................................................

10

Locating jumpers & connectors .......................................

12

Setting jumpers ...................................................................

13

CPU installing and upgrading ............................................

14

Installing DRAM (DIMMs) ..............................................

15

Cache Memory ....................................................................

16

Clear CMOS (J1) ................................................................

17

System temperature thermal sensor (J2) ........................

17

Mic_Amp (JP1) ...................................................................

17

COM3/COM4 RI pin voltage select (J3, J4) ................

18

Audio output select (J5) ....................................................

19

ATX Soft-Power Switch connector (J6) ...........................

19

COM2 RS-232/422/485 select (J10, J7) .........................

20

LCD clock signal select (J8) .............................................

21

LCD driving voltage select (J9) .......................................

21

Power connectors (CN9, CN1) .........................................

22

USB connector (CN3) .........................................................

23

CD Audio connector (CN4) ...............................................

23

IDE hard drive connector (CN6) ......................................

24

Front panel connector (CN7) ............................................

26

IrDA connector (CN8) .......................................................

27

Display connectors (CN10, CN12) ...................................

28

Keyboard and mouse connector (CN11) .........................

30

Audio connector (CN13) ....................................................

31

Parallel port connector (CN14) .........................................

32

100Base-T Ethernet connector (CN15) ..........................

33

Serial ports (CN16) .............................................................

34

Floppy drive connector (CN17) ........................................

35

SW1 (2~3) DOC address select ........................................

37

Ethernet LED signal connectors (LED2) ........................

38

DiskOnChip socket (U18) .................................................

39

DiskOnChip (DOC) 2000 Installation .............................

41

Chapter 3: Award BIOS Setup ..........................

41

Starting setup .......................................................................

42

Setup keys ............................................................................

43

Getting help .........................................................................

44

In case of problem ...................................................................

44

Main setup menu ................................................................

45

Standard CMOS setup .......................................................

47

BIOS features setup ...........................................................

53

CHIPSET features setup ...................................................

67

Powr management setup ....................................................

61

PNP/PCI configuration setup ............................................

66

Load BIOS defaults/Load setup defaults ........................

69

Integrated peripherals setup .............................................

70

Supervisor/User password setting ...................................

73

IDE HDD auto detection ...................................................

75

Save & exit setup ................................................................

76

Chapter 4: C&T 69000 Flat Panel/CRT controller

Display Drivers and Utilities .........

77

Software drives ....................................................................

78

Hardware configuration ..........................................................

78

Necessary prerequisites ..........................................................

79

Before you begin .....................................................................

79

Windows 98 ..........................................................................

80

Driver installation ....................................................................

80

Windows 3.1 .........................................................................

88

Driver installation ....................................................................

88

OS/2 .......................................................................................

89

Windows NT 3.51 ................................................................

91

Driver installation ....................................................................

91

Windows NT 4.0 ..................................................................

92

Driver installation ....................................................................

92

Chapter 5: Ethernet Software Configuration ...

.........................................................

93

Ethernet software configuration .......................................

94

Chapter 6: Audio Setup ....................................

95

Introduction .........................................................................

96

Setting Up in Windows 95 ..................................................

96

Installing the Drivers and the Application ...............................

97

Setting Up in NT 4.0 ...........................................................

99

Installing the Audio Drivers .....................................................

99

Driver installation ....................................................................

99

Appendix A: Programming the Watchdog

 

Timer ...........................................

101

Programming the watchdog timer ..................................

102

Watchdog timer .....................................................................

102

Configuration register ............................................................

102

Appendix B: Installing PC/104 Modules ........

109

Installing PC/104 modules ...............................................

110

C H A P T E R

1

General

Information

This chapter gives background information on the mainboard.

Sections include:

Board specifications

Layout and dimensions

Chapter 1 General Information 1

Introduction

The PCM-6890B is an all-in-one multi-media Celeron Pentium III processor based single board computer (SBC) with a 32-bit PCI audio controller, a PCI Flat Panel controller, a PCI 100Base-Tx Ethernet interface, and one PCI expansion slot. When using an Intel Pentium II/III processor, the PCM-6890B achieves outstanding performance that surpasses any other SBC in its class. In addition, the onboard SSD interface supports M-systems DiskOnChip 2000 series, memory capacity from 2 MB to 288 MB. This compact (only 5.75"“ x 8") unit offers all the functions of a single board industrial computer, but still fits in the space of a CD-ROM drive.

Onboard features include four serial ports (three RS-232, one RS232/422/485), one multi-mode parallel (ECP/EPP/SPP) port, connector for two USB (Universal Serial Bus) ports, a floppy drive controller, and a keyboard/PS/2 mouse interface. The built-in high speed PCI IDE controller supports Ultra DMA/33 mode. Up to two IDE devices can be connected, including large hard disks, CDROM drives, and tape backup drives, etc.

The PCM-6890B also features power management to minimize power consumption. It complies with the ACPI standard and supports three types of power saving features: Doze mode, Standby mode, and Suspend mode. In addition, the board's watchdog timer can automatically reset the system or generate an interrupt in case the system stops due to a program bug or EMI.

Highly integrated multi-media SBC

The PCM-6890B is a highly integrated multi-media SBC that combines audio, video, and network functions on a CD-ROM drive size single computer board. It provides 32-bit half-duplex, 16-bit full-duplex, integrated 3D audio and up to 1024 x 768 resolution @ 64K colors with on-chip 2MB SDRAM display memory. Major onboard devices adopt PCI technology to achieve outstanding computing performance when used with Intel Celeron level processors, making the PCM-6890B one of the world's smallest and most powerful all-in-one multimedia boards.

2 PCM-6890B User Manual

Features

Supports Intel Pentium III, Celeron CPUs, and compatible CPUs

C&T69000 LCD controller supports 36-bit TFT Panels

10/100Base-T Fast Ethernet

Integrated AC-97 2.0 (meets PC98™ Basic Audio spec.)

SoundBlaster compatible PCI 3D Audio

Supports DiskOnChip (SSD) up to 288MB

PC/104 expansion connector

Chapter 1 General Information 3

Specifications

Standard SBC Functions

CPU: Pentium III / Celeron supported (With system bus frequencies of 66/100MHz)

CPU socket: Intel 370-pin socket

BIOS: Award 256KB Flash BIOS

Chipset: Intel 440BX

I/O Chipset: ITE IT8661F/Winbond W83977EF. Full 16-bit I/O ` decoded

Memory: Onboard one 168-pin DIMM socket supports up to 256Mbytes SDRAM

Enhanced IDE: Support up to two IDE devices. Supports Ultra DMA/ 33 mode with data transfer rate up to 33MB/sec.

FDD interface: Supports up to two floppy disk drives, 5.25" (360KB and 1.2MB) and /or 3.5" (720KB, 1.44MB, and 2.88MB)

Parallel port: One bi-directional parallel port. Supports SPP, ECP and EPP modes

Serial ports: Three RS-232 and one RS-232/422/485 serial ports.

Ports can be configured as COM1, COM2, COM3, COM4, or disabled individually. (16C550 equivalent)

IR interface: Supports one IrDA Tx/Rx header

Keyboard/mouse connector: 8 pin connector supports PC/AT keyboard and PS/2 mouse

USB connectors: 4 x 2 header onboard supports dual USB ports

Battery: Lithium battery for data retention

Watchdog Timer: Can generate a system reset, IRQ15, or NMI.

Support software selectable timeout interval. (32sec. ~ 254.5 min., 1 sec./ step)

4 PCM-6890B User Manual

DMA: 7 DMA channels (8237 equivalent)

Interrupt: 15 interrupt levels (8259 equivalent)

Power management: Supports ATX power supply. Supports PC97, LAN wake up, and modem ring-in functions. I/O peripheral devices support power saving and doze/standby/suspend modes. APM 1.2 compliant

H/W status monitoring: Winbond W83781D H/W status monitoring IC supports power supply voltage and temperatures monitoring

Flat Panel/CRT Interface

Chipset: C&T 69000 / C&T 69030

Display memory: Built-in 2MB/4MB SDRAM

Display type: Supports non-interlaced CRT and LCD (TFT, DSTN, and Mono) displays. Can display both CRT and Flat Panel simultaneously

Resolution: Up to 1024x768@64K colors

PCI Sound Interface

Chipset: ESS Solo-1

Wave-Table synthesis: 32-Voice Polyphony and multi-timbral capability

3D audio: Supports for Microsoft DirectSound and DirectSound 3D audio technology in two-speaker mode (requires Microsoft Direct Sound 3D supported software titles)

16-bit stereo digital audio: Full-duplex support enables simultaneous record and playback for Internet communications software

Game port: IBM-compatible 15-pin game port with analog supported

Ethernet interface

Chipset: Intel 82559GD 100Base-T Fast Ethernet controller

Ethernet interface: 100Base-T RJ-45 connector. Optional Remote Boot ROM function

Chapter 1 General Information 5

SSD Interface

One 32-pin DIP socket supports M-systems DiskOnChip 2000 Series up to 288MB

Expansion Slots

PC/104 connector: One 16-bit 104-pin connector onboard

PCI slot: One 32-bit PCI slot onboard

Mechanical and environmental

Power supply voltage: +5V (4.75V to 5.25V), +12V (11.4V to 12.6V)

Typical power requirement: +5V@4A

Operating temperature: 32 to 140o F (0 to 60o C)

Board size: 8"(L) x 5.75"(W) (203mm x 146mm)

Weight: 1.2 lb. (0.5 Kg)

6 PCM-6890B User Manual

Board layout

Chapter 1 General Information 7

Board dimensions

00.0

Drawing Mechanical 0.B1 Rev 6890B-PCM AAEON

mm UNIT:

0.00

0.00

 

00.0

8 PCM-6890B User Manual

C H A P T E R

Installation

2

This chapter describes how to set up the main board hardware, including instructions on setting jumpers and connecting peripherals, switches, and indicators. Be sure to read all the safety precautions before you begin the installation procedure.

Chapter 2 Installation 9

Jumpers and connectors

Connectors on the board link it to external devices such as hard disk drives, a keyboard, or floppy drives. In addition, the board has a number of jumpers that allow you to configure your system to suit your application.

The following tables list the function of each of the board's jumpers and connectors.

Jumpers

Label

Function

J1

Clear CMOS

 

 

J2

System temperature thermal sensor

 

 

J3

COM4 RI pin voltage select

 

 

J4

COM3 RI pin voltage select

 

 

J5

Audio output select

 

 

J6

ATX soft-power switch connector

 

 

J7

COM2 RS-232/422/485 select

J8

LCD clock select

 

 

J9

LCD driving voltage select

 

 

J10

COM2 RS-232/422/485 select

 

 

SW1 (2~3)

DOC address select

 

 

JP1

Mic_Amp

 

 

10 PCM-6890B User Manual

Connectors

Label

Function

CN1

CPU fan power connector

 

 

CN2

PC/104 connector

 

 

CN3

USB ports connector

 

 

CN4

CD-ROM signal input connector

 

 

CN6

IDE drive connector

CN7

Front panel connector

 

 

CN8

IrDA connector

 

 

CN9

ATX power connector

 

 

CN10

LCD display connector

CN11

Keyboard and PS/2 mouse connector

 

 

CN12

VGA display connector

 

 

CN13

Audio connector

 

 

CN14

Printer port connector

CN15

100Base-T Ethernet connector

 

 

CN16

Serial ports connector

 

 

CN17

Floppy dirve connector

 

 

U18

DiskOnChip socket

 

 

LED2

Ethernet Tx/Rx/Link LED connector

 

 

Chapter 2 Installation 11

Locating jumpers & connectors

J12 J13 J1

JP11

PCI1

DIM1

CPU1

CN1

J3

J4

CN3

CN2 CN5

CN7

CN8

CN6

J6

J10

J7

CN11

 

 

 

 

 

SW1

 

 

 

 

 

J5

 

 

 

 

 

CN4

 

 

 

 

 

CN10

 

 

 

 

 

CN9

 

 

 

 

 

J9

 

 

 

 

 

J8

 

 

 

 

 

LED2

CN17

CN14

CN13

CN16

JP1 CN12

CN15

12 PCM-6890B User Manual

Setting jumpers

You can configure your card to match the needs of your application by setting jumpers. A jumper is the simplest kind of electric switch. It consists of two metal pins and a small metal clip (often protected by a plastic cover) that slides over the pins to connect them. To “close” a jumper you connect the pins with the clip. To “open” a jumper you remove the clip. Sometimes a jumper will have three pins, labeled 1, 2, and 3. In this case you would connect either pins 1 and 2 or 2 and 3.

2 3

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open

Closed

Closed 2-3

The jumper settings are schematically depicted in this manual as follows:

1 2 3

Open

Closed

Closed 2-3

A pair of needle-nose pliers may be helpful when working with jumpers.

If you have any doubts about the best hardware configuration for your application, contact your local distributor or sales representative before you make any changes.

Chapter 2 Installation 13

CPU installing and upgrading

You can upgrade to a more powerful Pentium II/III CPU at any time. Simply remove the old CPU, install the new one, and set the jumpers for the new CPU speed.

Warning! Always disconnect the power cord from your chassis when you are working on it. Do not make connections while the power is on as

sensitive electronic components can be damaged by the sudden rush of power. Only experienced electronics personnel should open the PC chassis.

Caution! Always ground yourself to remove any static charge before touching the PC board. Modern electronic devices are very sensitive to static

electric charges. Use a grounding wrist strap at all times. Place all electronic components on a static-dissipative surface or in a static-shielded bag when they are not in the chassis.

14 PCM-6890B User Manual

Installing DRAM (DIMMs)

System Memory

The left edge of the PCM-6890B contains a socket for 168-pin dual inline memory module (DIMM). The socket uses 3.3 V unbuffered synchronous DRAM (SDRAM). DIMM is available in capacities of 16, 32, 64, 128, or 256 MB. The socket can be filled in the DIMM of any size, giving your PCM-6890B single board computer between 16 and 258 MB of memory.

Supplementary information about DIMM

Your PCM-6890B can accept both regular and PC-100 SDRAM DIMM Module(with or without parity). However. The PCM-6890B can only accept PC-100 SDRAM Module.

Single-sided modules are typically 16 or 128MB; double-sided modules are usually 32 or 256 MB.

Memory Installation Procedures

To install SDRAM, first make sure the two handles of the SDRAM socket are in the "open" position. i.e. The handles remain outward. Slowly slide the SDRAM module along the plastic guides on both ends of the socket. Then press the SDRAM module right down into the socket, until you hear a click. This is when the two handles have automatically locked the memory module into the correct position of the SDRAM socket. (See Figure below) To take away the memory module, just push both handles outward, and the memory module will be ejected by the mechanism in the socket.

Chapter 2 Installation 15

Cache memory

Since the second level cache has been embedded into the Celeron / Pentium III CPUs, you do not have to take care of either SRAM chips or SRAM modules. The built-in second level cache in the Celeron yields much higher performance than the external cache memories. The cache size in the Celeron CPUs is 128 KB, but 256KB for Pentium III CPUs.

16 PCM-6890B User Manual

Clear CMOS (J1)

You can use J1 to clear the CMOS data if necessary. To reset the CMOS data, set J1 to 2-3 closed for just a few seconds, and then move the jumper back to 1-2 closed.

Clear CMOS (J1)

 

Protect*

Clear CMOS

J1

1

1

 

2

2

 

3

3

*default

System temperature thermal sensor (J2)

J2 is a thermal sensor component. This temperature detector works primarily with the BIOS to offer clients the ability to monitor the temperature.

BIOS offers an ICON on screen for customers to select followed by the temperature information.

Mic_Amp (JP1)

Mic Amp (JP1)

 

 

On

 

Off

JP1

1

2

1

2

 

3

4

3

4

 

5

6

5

6

Chapter 2 Installation 17

COM3/COM4 RI pin voltage select (J3, J4)

The 9th pin of COM3 and COM4 (9-pin D-sub connector) can be selected as RI, +5V, or +12V by setting J3 & J4.

COM3 RI pin setting (J4)

 

RI*

 

+5V

+12V

1

3

5

1

3

5

1

3

5

J4

 

 

 

 

 

 

 

 

2

4

6

2

4

6

2

4

6

COM4 RI pin setting (J3)

 

 

 

 

 

 

 

RI *

 

+5V

+12V

1

3

5

1

3

5

1

3

5

J3

 

 

 

 

 

 

 

 

2

4

6

2

4

6

2

4

6

*default

18 PCM-6890B User Manual

Audio output select (J5)

You can select the output mode of onboard audio connector (CN14) by setting J5.

"Speaker out" is the output signal amplified by onboard amplifier

Audio output select (J5)

 

Line out

 

Speaker out *

 

2

1

2

1

J5

4

3

4

3

 

6

5

6

5

*default

ATX Soft-Power Switch connector (J6)

The ATX Soft-Power switch connector is a 2-pin header. Locate the power switch cable from your system. Plug this connector to the Soft-Power switch connector marked J6.

Chapter 2 Installation 19

COM2 RS-232/422/485 select (J10, J7)

The PCM-6890B COM2 serial port can be selected as RS-232, RS422, or RS-485 by setting J10 & J7.

COM2 Select (J10, J7)

RS-232*

RS-422

RS-485

1 4 7 10

1 4 7 10

1 4 7 10

J10

 

 

 

 

 

 

 

 

3 6 9 12

3 6 9 12

3 6 9 12

1

3

5

1

3

5

1

3

5

J7

 

 

 

 

 

 

 

 

2

4

6

2

4

6

2

4

6

*default

20 PCM-6890B User Manual

LCD clock signal select (J8)

You can select the LCD control signal by setting J8. The following charts show the available option.

LCD clock signal select (J8)

SHF CLK * ASHF CLK

J8

1 2 3 1 2 3

*default

LCD driving voltage select (J9)

You can select the LCD connector CN10 (pin 5 and pin 6) driving voltage by setting J9. The configurations are as follows:

LCD driving voltage select (J9)

5V 3.3V *

J9

2

3

1

2

3

1

*default

Chapter 2 Installation 21

Power connectors (CN9, CN1)

ATX power connector (CN9)

The ATX power supply uses a 20-pin connector shown below. Make sure you plug in the right direction.

ATX power connector (CN9)

Pin

Signal

Pin

Signal

1

N/C

11

N/C

2

N/C

12

-12V

 

 

 

 

3

GND

13

GND

 

 

 

 

4

+5V

14

PON

 

 

 

 

5

GND

15

GND

 

 

 

 

6

+5 V

16

GND

 

 

 

 

7

GND

17

GND

 

 

 

 

8

N/C

18

-5V

9

5V SB

19

+5V

10

+12V

20

+5V

 

 

 

 

CPU fan power connector (CN1)

Plug in the fan cable to the 3-pin fan connector onboard. The fan connector is marked CN1.

CPU fan power connector (CN1)

Pin Signal

1GND

2+12V

3Fan speed sense

22 PCM-6890B User Manual

USB connector (CN3)

The PCM-6890B provides two USB (Universal Serial Bus) interfaces, which give complete plug and play, hot attach/detach for up to 127 external devices. The USB interfaces comply with USB specification Rev. 1.0, and can be disabled in the system BIOS setup.

USB connector (CN3)

Pin

Function

Pin

Function

1

GND

5

Vcc

 

 

 

 

2

UD1+

6

UD0-

 

 

 

 

3

UD1-

7

UD0+

 

 

 

 

4

Vcc

8

GND

CD Audio connector (CN4)

This connector is used to connect to a CD audio cable.

CD Audio connector (CN4)

Pin

Signal

1GND

2CD_L

3GND

4CD_R

Chapter 2 Installation 23

IDE hard drive connector (CN6)

You can attach one or two Enhanced Integrated Device Electronics hard disk drives to the mainboard's internal controller. The mainboard's IDE controller uses a PCI local-bus interface. This advanced interface supports faster data transfer and allows the IDE hard drive to exceed 528 MB.

Connecting the hard drive

Connecting drives is done in a daisy-chain fashion and requires one of two cables, depending on the drive size.

Wire number 1 on the cable is normally red or blue, and the other wires are usually gray.

1.Connect one end of the cable to CN6. Make sure that the red (or blue) wire corresponds to pin 1 on the connector, which is labeled on the board (on the right side).

2.Plug the other end of the cable to the Enhanced IDE hard drive, with pin 1 on the cable corresponding to pin 1 on the hard drives. (see your hard drive's documentation for the location of the connector).

Connect a second drive as described above.

Unlike floppy drives, IDE hard drives can connect to either end of the cable. If you install two drives, you will need to set one as the master and the other one as the slave by using jumpers on the drives. If you install just one drive, set it as the master.

24 PCM-6890B User Manual

IDE hard drive connector (CN6)

IDE hard drive connector (CN6)

Pin

Signal

Pin

Signal

1

IDE RESET

2

GND

 

 

 

 

3

DATA 7

4

DATA 8

 

 

 

 

5

DATA 6

6

DATA 9

 

 

 

 

7

DATA 5

8

DATA 10

 

 

 

 

9

DATA 4

10

DATA 11

 

 

 

 

11

DATA 3

12

DATA 12

13

DATA 2

14

DATA 13

 

 

 

 

15

DATA 1

16

DATA 14

 

 

 

 

17

DATA 0

18

DATA 15

 

 

 

 

19

SIGNAL GND

20

N/C

 

 

 

 

21

N/C

22

GND

 

 

 

 

23

IO WRITE

24

GND

 

 

 

 

25

IO READ

26

GND

27

IO CHANNEL READY

28

ALE

29

N/C

30

GND

 

 

 

 

31

IRQ14

32

IOCS16

 

 

 

 

33

ADDR 1

34

N/C

 

 

 

 

35

ADDR 0

36

ADDR 2

 

 

 

 

37

HARD DISK SELECT 0

38

HARD DISK SELECT 1

 

 

 

 

39

IDE ACTIVE

40

MGND

 

 

 

 

41

VCC

42

MVCC

43

GND

44

N/C

 

 

 

 

Chapter 2 Installation 25

Front panel connector (CN7)

Next you may want to install external LEDs and switches to monitor and control the mainboard. These features are completely optional. Install them only if you need them. The front panel connector (CN7) is an 8-pin male, dual in-line header and provides connections for a speaker, hard disk access indicator, and an input switch for resetting the card.

Front panel connector (CN7)

Pin

Signal

1

HDD LED- (Hard disk active)

 

 

2

HDD LED+ (VCC)

3

Speaker- (GND)

 

 

4

Speaker+

 

 

5

NC

 

 

6

GND

 

 

7

Reset switch+

8

Reset switch- (GND)

Speaker

The mainboard can drive an 8Ω external speaker at 0.5 watts. If there is no external speaker, the PCM-6890B provides an onboard buzzer as an alternative.

LED interface

The front panel LED indicator for hard disk access is an active low signal (24 mA sink rate).

26 PCM-6890B User Manual

IrDA connector (CN8)

The IrDA connector (CN8) can be configured to support wireless infrared module, with this module and application software such as laplink or Win95 Direct Cable connection, user can transfer files to or from laptops, notebooks, PDA and printers. This connector supports HPSIR (115.2Kbps, 2 meters).

Install infrared module onto IrDA connector and enable infrared function from BIOS setup. Make sure to have correct orientation when you plug onto IrDA connector (CN8).

IrDa connector (CN8)

Pin Signal

1Vcc

2NC

3IrRx

4GND

5IrTx

Chapter 2 Installation 27

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