AOpen AP43 User manual
AP43
User’s Guide
Copyright
ii
Copyright
1995 by this company. All rights reserved. No part of
this publication may be reproduced, transmitted, transcribed, stored in
a retrieval system, or translated into any language or computer
language, in any form or by any means, electronic, mechanical,
magnetic, optical, manual or otherwise, without the prior written
permission of this company.
Disclaimer
iii
This company makes no representations or warranties, either
expressed or implied, with respect to the contents hereof and
specifically disclaims any warranties, merchantability or fitness for any
particular purpose. Any software described in this manual is sold or
licensed "as is". Should the programs prove defective following their
purchase, the buyer (and not this company, its distributor, or its
dealer) assumes the entire cost of all necessary servicing, repair, and
any incidental or consequential damages resulting from any defect in
the software. Further, this company reserves the right to revise this
publication and to make changes from time to time in the contents
hereof without obligation to notify any person of such revision or
changes.
AMI is a registered trademark of American Megatrends Inc.
AMD is a registered trademark of Advanced Micro Devices Inc.
Cyrix is a registered trademark of Cyrix Corporation.
Intel is a registered trademark of Intel Corporation.
PC XT/AT is a registered trademark of International Business Machines Corporation.
Other brand and product names are trademarks and/or registered trademarks of their
respective holders.
FCC Statement
iv
FCC Class B Radio Frequency
Interference Statement
Note:
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of 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 instructions, may cause harmful
interference to 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, the user is encouraged to try to correct the interference by one or
more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
4. Consult the dealer or an experienced radio/television technician for
help.
Notice 1:
The changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to operate
the equipment.
Notice 2:
Shielded interface cables, if any, must be used in order to comply with
emission limits.
About this Manual
v
Purpose and Scope
This manual tells how to install and configure the system board.
Organization
This manual consists of three chapters and two apendices:
Chapter 1, Features, covers the specifications, layout, and components of
the system board.
Chapter 2, Hardware Setup, tells how to set the jumpers, upgrade the CPU
and the system memory, install the system board and add expansion cards.
Chapter 3, AMI BIOS, explains the system BIOS and tells how to configure
the system by setting the BIOS parameters.
Appendix A, Jumper Summary, gives you a tabular summary of the jumper
settings discussed in Chapter 2.
Appendix B, SiS Drivers, tells how to install the drivers supported by SiS.
About this Manual
vi
Conventions
The following conventions are used in this manual:
Text entered by user,
default settings
Represent text input by the user,
default settings and recommended
selections
message displayed
Denotes actual messages that appear
on screen
a, e, s, etc
Represent the actual keys that you
have to press on the keyboard.
NOTE
Gives bits and pieces of additional
information related to the current topic.
WARNING
Alerts you to any damage that might
result from doing or not doing specific
actions.
CAUTION
Suggests precautionary measures to
avoid potential hardware or software
problems.
IMPORTANT
Reminds you to take specific action
relevant to the accomplishment of the
procedure at hand.
TIP
Tells how to accomplish a procedure
with minimum steps through little
shortcuts.
Table of Contents
vii
1 Features
Specifications..................................................... 1-2
Board Layout...................................................... 1-3
System Board Parts........................................... 1-4
Microprocessor.......................................... 1-4
ASICs........................................................ 1-4
AMI BIOS .................................................. 1-4
Expansion Slots......................................... 1-5
DRAM Sockets.......................................... 1-5
Two-channel PCI Mode 4 IDE................... 1-5
Super I/O Controller .................................. 1-6
Keyboard Connector ................................. 1-6
SRAM........................................................ 1-6
Power Management .................................. 1-6
2 Hardware Setup
CPU Options...................................................... 2-1
5V CPU Options........................................ 2-1
3.45 V CPU Options.................................. 2-2
ESD Precautions................................................ 2-2
Installing a Microprocessor ................................ 2-3
Upgrading the Microprocessor........................... 2-4
Jumper Settings................................................. 2-5
Table of Contents
viii
Changing the CPU Type............................ 2-7
Setting the Oscillator Frequency ............. 2-13
Setting the Flash ROM Type................... 2-13
Selecting the ECP DMA Channel............ 2-14
Enabling the FDC and Super I/O Chip .... 2-14
Selecting the Cache Size ........................ 2-15
Clearing the CMOS ................................. 2-17
Memory Configuration...................................... 2-17
Installing a SIMM..................................... 2-18
Removing a SIMM................................... 2-19
Connectors....................................................... 2-20
Multifunction Connector........................... 2-20
Keyboard Connector ............................... 2-22
Power Connector..................................... 2-23
Break/Suspend Connector ...................... 2-23
Fan Power Connectors............................ 2-24
External Battery Connector ..................... 2-25
Installation........................................................ 2-26
Installing the System Board..................... 2-26
Installing Expansion Boards.................... 2-27
Table of Contents
ix
3 AMI BIOS
AMI BIOS Setup Main Menu.............................. 3-1
Standard CMOS Setup ...................................... 3-2
Date/Time.................................................. 3-2
Floppy Drives A and B............................... 3-3
Hard Disk Drives........................................ 3-4
Advanced CMOS Setup..................................... 3-5
Typematic Rate (Chars./Sec.)................... 3-7
System Keyboard...................................... 3-7
Primary Display ......................................... 3-7
Above 1 MB Memory Test......................... 3-8
Memory Test Tick Sound .......................... 3-8
Hit “Del” Message Display ......................... 3-8
Extended BIOS RAM Area........................ 3-8
Wait for F1 If Any Error.............................. 3-8
System Boot-up Num Lock........................ 3-9
Numeric Processor Test............................ 3-9
Floppy Drive Seek at Boot......................... 3-9
Floppy Drive Swapping.............................. 3-9
System Boot-up Sequence........................ 3-9
System Boot-up CPU Speed................... 3-10
Turbo Switch Function............................. 3-10
Password Checking................................. 3-10
Table of Contents
x
CPU Selection......................................... 3-10
Cache...................................................... 3-10
Shadow C800, D000, D800, 32K ............ 3-12
Video Shadow......................................... 3-12
Main BIOS Cacheable............................. 3-12
Cacheable C800, D000, D800, 32 K....... 3-12
Video Shadow Cacheable....................... 3-13
Secondary IDE Drives Present................ 3-13
Primary 1st IDE Block Mode.................... 3-13
Primary 2nd IDE Block Mode .................. 3-13
Secondary 1st IDE Block Mode............... 3-14
Secondary 2nd IDE Block Mode.............. 3-14
Chipset Setup Mode................................ 3-15
Chipset Features Setup ................................... 3-15
Memory Speed (DRAM).......................... 3-17
Cache Speed (SRAM)............................. 3-17
CPU-to-PCI Memory Post Write Buffer ... 3-18
CPU-to-PCI Memory Burst Write............. 3-18
DRAM Type (Refresh)............................. 3-18
Power Management Setup .............................. 3-22
BIOS Power Management Mode............. 3-22
Advanced Power Management ............... 3-24
Doze Timer.............................................. 3-24
Table of contents
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