Advantech PCA-6275 User manual

PCA-6275
Pentium®II processor-based
PCI/ISA-bus CPU card

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Copyright notice
This document is copyrighted, 1999, by Advantech Co., Ltd. All rights
are reserved. Advantech Co., Ltd. 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 Advantech Co., Ltd. Information provided in this
manual is intended to be accurate and reliable. However, Advantech
Co., Ltd. assumes no responsibility for its use, nor for any in-
fringements upon the rights of third parties which may result from its
use.
Acknowledgements
AWARD is a trademark of AWARD Software, Inc.
AMD is a trademark of Advanced Micro Devices, Inc.
IBM and PC are trademarks of International Business Machines
Corporation.
Intel is a trademark of Intel Corporation.
MS-DOS is a trademark of Microsoft Corporation.
SMC is a trademark of Standard Microsystems Corporation.
NCR is a trademark of NCR Corporation.
All other product names or trademarks are the properties of their
respective owners.
Part No. 2006627510
2nd Edition Printed in Taiwan May 1999

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A Message to the Customer
Advantech customer services
Each and every Advantech 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 Advantech 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 Advantech has
come to be known.
Your satisfaction is our primary concern. Here is a guide to
Advantech’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 Advantech 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 Advantech
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.

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Product warranty
Advantech warrants to you, the original purchaser, that each of its
products will be free from defects in materials and workmanship for
one year 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 Advantech, or which have been subject to misuse, abuse, accident
or improper installation. Advantech assumes no liability under the
terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous
testing, most of our customers never need to use our repair service. If
an Advantech 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, type of PC, CPU speed, Advantech 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.

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Initial Inspection
Before you begin installing your card, please make sure that the
following materials have been shipped:
• 1 PCA-6275 Dual Pentium®II single board computer
• 2 Pentium II CPUs and 2 cooling fans (optional)
• 1 PCA-6275 user's manual
• 1 bus master & BIOS utility driver
• 2 disks, for OBS Win95 drivers
• 1 FDD cable
• 2 EIDE HDD cables
• 1 printer cable
• 2 temperature sensor cables
• 1 ivory cable for keyboard and mouse
• 1 USBcable
• 1 ATX-to-PS/2 power cable
• 1 dual Pentium II CPU retention module
If any of these items are missing or damaged, contact your
distributor or sales representative immediately.
We have carefully inspected the PCA-6275 mechanically and
electrically before shipment. It should be free of marks and scratches
and in perfect working order upon receipt.
As you unpack the PCA-6275, check it for signs of shipping damage.
(For example, damaged box, scratches, dents, etc.) If it is damaged or
it fails to meet the specifications, notify our service department or your
local sales representative immediately. Also notify the carrier. Retain
the shipping carton and packing material for inspection by the carrier.
After inspection, we will make arrangements to repair or replace the
unit.

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Contents
Chapter 1 Hardware Configuration.............................. 1
1.1 Introduction ........................................................................2
1.2 Features...............................................................................3
1.3 Specifications ......................................................................4
System ..................................................................................4
Memory ................................................................................4
Input/Output .........................................................................4
Industrial features.................................................................5
Mechanical and environmental specifications .....................5
1.4 Board Layout: Main Features ..........................................6
1.5 Jumpers and Connectors...................................................7
1.6 Board Layout: Jumper and Connector Locations..........9
1.7 Safety Precautions............................................................10
1.8 Jumper Settings................................................................11
1.8.1 How to set jumpers ...................................................11
1.8.2 CPU core frequency (J1)...........................................11
1.8.3 Watchdog timer output (J2).......................................13
1.8.4 CMOS clear (J4) .......................................................13
1.9 System Memory................................................................14
1.9.1 Sample calculation: DIMM memory capacity ..........11
1.9.2 Supplementary information about DIMMs...............11
1.10 Memory Installation Procedures ....................................16
1.11 Cache Memory .................................................................17
1.12 Mounting the CPU and Cooling Modules......................18
1.13 On-board Support Bracket .............................................21
Chapter 2 Connecting Peripherals ............................ 23
2.1 Primary (CN1) and Secondary (CN2) IDE
Connectors ........................................................................24
2.2 IR Connector (CN3).........................................................24
2.3 USB Connector (CN4) .....................................................25
2.4 Parallel Port Connector (CN5) .......................................25

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2.5 ATX Power Control Connectors (CN6 and J3).............26
2.5.1 ATX feature connector (CN6) and soft power switch
connector (J3).............................................................26
2.5.2 Controlling the soft power switch.............................27
2.6 Floppy Drive Connector (CN7).......................................27
2.7 CPU Fan Connectors (CN9, CN8) ..................................27
2.8 Front Panel Connectors
(CN10, CN11, CN12, CN13 and J3)................................28
2.8.1 External speaker (CN10)...........................................28
2.8.2 Keyboard lock and power on LED (CN11) ..............28
2.8.3 IDE LED (CN12) ......................................................28
2.8.4 Reset LED (CN13)....................................................28
2.8.5 ATX soft power switch (J3) ......................................28
2.9 External Suspend Switch Lead (SMI) (CN14) ..............29
2.10 Serial Ports (CN15: COM1; CN16: COM2)..................29
2.11 External Keyboard Connector (CN17) ..........................30
2.12 Keyboard & PS/2 Mouse Connector (CN18) ................30
2.13 CPU Temperature Sensors
(CPU1: TR1; CPU2: TR2) ..............................................30
Chapter 3 Award BIOS Setup ..................................... 31
3.1 Introduction ......................................................................32
3.2 Entering Setup..................................................................32
3.3 Standard CMOS Setup....................................................33
3.4 BIOS Features Setup .......................................................34
3.4.1 Virus Warning ...........................................................34
3.4.2 Quick Power On Self Test.........................................35
3.4.3 Boot Sequence...........................................................35
3.4.4 Boot Up Floppy Seek ................................................35
3.4.5 Boot Up NumLock Status .........................................36
3.4.6 Gate A20 Option .......................................................36
3.4.7 Typematic Rate Setting .............................................36
3.4.8 Typematic Rate (Chars/Sec)......................................36
3.4.9 Typematic Delay (msec) ...........................................36
3.4.10 Security Option .......................................................36

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3.4.11 PCI/VGA Palette Snoop..........................................37
3.4.12 OS Select for DRAM > 64 MB...............................37
3.4.13 Video BIOS Shadow ...............................................37
3.4.14 C8000-CBFFF Shadow / DC000-DFFFF Shadow .37
3.5 Chipset Features Setup....................................................38
3.6 Power Management Setup ..............................................39
3.6.1 Power Management...................................................39
3.6.2 HDD Power Management .........................................39
3.6.3 Soft-Off by PWR-BTTN...........................................40
3.6.4 IRQ Activity..............................................................40
3.7 PCI Configuration Setup.................................................40
3.7.1 IRQ-xx assigned to : PCI/ISA PnP ...........................41
3.7.2 DMA-x assigned to : PCI/ISA PnP ...........................41
3.7.3 Used MEM base addr : N/A......................................41
3.8 Load BIOS Defaults.........................................................42
3.9 Load Setup Defaults.........................................................42
3.10 Integrated Peripherals.....................................................42
3.11 Password Setting ..............................................................43
3.12 IDE HDD Auto Detection ................................................43
3.13 Save & Exit Setup ............................................................44
3.14 Exit Without Saving.........................................................44
Chapter 4 On-board Security Setup........................... 45
4.1 Introduction ......................................................................46
4.2 Installation of OBS Devices.............................................46
4.3 Driver Installation............................................................47
4.3.1 Necessary prerequisites.............................................47
4.3.2 Before you begin .......................................................47
4.3.3 Windows 95 drivers setup procedure ........................48
Appendix A Programming the Watchdog Timer ....... 59
A.1 Programming the Watchdog Timer ...............................60
Appendix B Pin Assignments .................................... 63
B.1 COM1/COM2 RS-232 Serial Port (CN15, CN16).........64
B.2 Keyboard and Mouse Connnector (CN18) ....................64

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B.3 External Keyboard Connector (CN17) ..........................64
B.4 ATX Feature Connector (CN6).......................................65
B.5 IDE Hard Drive Connector (CN1, CN2)........................65
B.6 USB Connector (CN4) .....................................................66
B.7 CPU Fan Power Connectors (CN8, CN9) ......................66
B.8 Floppy Drive Connector (CN7).......................................67
B.9 Parallel Port Connector (CN5) .......................................68
B.10 IR Connector (CN3).........................................................69
B.11 HDD LED Connector (CN12) .........................................69
B.12 Power LED and Keylock Connector (CN11).................69
B.13 External Speaker (CN10) ................................................70
B.14 System I/O Ports ..............................................................71
B.15 DMA Channel Assignments ............................................72
B.16 Interrupt Assignments.....................................................72
B.17 1st MB Memory Map ......................................................73

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