Anix Technology Corporation CH-386S-16 User manual

CH-386s~16/20/256
Mainboard
User’s Manual
1 st Edition
July 1991
IBM PC/A? are registered trademarks of
International Business Machines Corporation.
Intel 386SX and 387SX are trademarks of Intel Corporation.
Other brand and product names are trademarks and/or registered of
their respective companies.

Table Of Content
Chapter 1 l-l
1. Introduction . . , ; . . . . . . . . . . . . . . . . . . . . . . .1-l
Chapter 2 2-1
2. Mainboard Configuration . . . . . . . . . . . . . . . .2-l
2-1. Connectors and Jumpers Setting . . . . .2-l
2-2. DRAM Banks Configuration . . . . . . . . . .2-3
Chapter 3
3-1
3. BIOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . s .3-l
3-1. Setup Utilities Option . . . . . . . . . . . . . . .3-l
3-2. Standard CMOS Setup Option . . . . . . . .3-2
3-3. Advanced CMOS Setup Option . . . . . . .3-3
3-4. Auto Configuration With BIOS Defaults .3-5
3-5. Auto Configuration With Power-On
Defaults . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3-6. Write To CMOS And Exit . . . . . . . . . . . .3-6
3-7. Do Not Write To CMOS And Exit _ . . . . .3-6

1. lntrodhtion
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- The Mainboard is a high performance, highly
integrated main board base on the 80386SX CPU. It
is fully compatible with the IBM PC/AT.
Features
16, 20 or 25 MHz 80386SX microprocessor.
Socket for 803875X COPROCESSOR.
Sync or Async Mode for Co-processor Operation.
Four Banks Memory socket on board.
(2 Banks DIP, 2 Banks SIMM )
Supports 256K DIP & 256K / 1 M / 4M RAM Module device.
PAGE INTERLEAVE and MRA ( Multi-RAS Active ) MODE
Memory operation.
Multiple RAM configures provide.
SHADOW RAM provide for SYSTEM BIOS, VIDEO BIOS.
Hardware and Software TURBO mode operation.
Single BIOS ROM provide.
On board rechargeable battery backup for CMOS
configuration and real-time clock.
6 x 16-bit expansion slots.
Half size, 4-layer PCB.
Lotus / Intel /Microsoft Expanded Memory Specification
4.0 support.
Fast CPU Reset and Fast Gate A20 for OS/2 optimization.
CH-386s~16/20/256
Introduction
l-l

2. MAINBOARD CONFIGURATION
. .._........._ .._... __.._._._.. .___~.._
2-1. CONNECTORS AND JUMPERS SElTlNG
- The following is a description of jumpers and
connectors of CH-386S-16/20/256 mainboard.
CH-366~16/20/256
Mainboard Configuration 2-1

0 Jl=
Keylock and power LED connector.
q J2 = Speaker connector.
0 J3 = Reset switch connector.
0 J4 = Turbo / Normal switch connector.
0 J5 = Turbo LED connector.
0 JIS = External battery connector.
q J16 = Power connector.
0 J17 = Keyboard connector.
Cl J6= Co-processor operation mode jumper
Short
: Async Mode (default)
Open
: Sync Mode
lNote : 56 is for 25 MHz used only.
0 J13= CRT type jumper
Short
: Color display
Open
: Mono display (default)
0
J14 = CMOS RAM power jumper
1-2
: Clear CMOS memory
2-3
: Normal operation (default)
2-2 Mainboard Configuration
CH-386s.16/20/256

2-2. DRAM BANKS CONFIGURATION
q The Mainboard supports 256K, lM, and 4M memory
devices on the system board in four 16-Bit banks, total
main memory size can be up to 16MB. The memory
configuration are supported as shown in the following
table.
0 J7 for SIMM module RAM bank selection:
- 1,2 ON
: select bank
0 81 bank
1
- 2,3 ON
: select bank
2 & bank
3
J7
1
--
l I
lolo
SIMM SEL -
0 DIP DRAM S can be install 256K x 4 for data RAM and
256K x 1 for parity bit.
l Note : 1. DIP DRAMS are always on bank 0 & bank 1.
2. 16 / 20 MHz mainboard 80 ns DRAM used
25 MHz mainboard 80 ns DRAM for 1 wait state
60 ns DRAM for 0 wait state
(reference to P3-4 Advance CHIPSET Setup)
CH-386s.16/20/25G
Mainboard Configuration 2-3

-
SIMM socket selected bank 0 & bank 1 DRAM
configuration:
MEMORY SIZE
BANK# 2 BANK 93
512 KB 256 K
1 MB
I
256 K
I
256 K
2MB
I
1M
I
2.5 MB 256 K
I
IM
4MB
I
IM
I
IM
IOMB
I
IM
I
4M
16 MB
I
4M
I
4M
- SIMM socket selected Bank 2 & Bank 3 DRAM
configuration
MEMORY SIZE 1 BANK 0 1 BANK 1 t BANK 2 1 BANK 3
512 KB
1256~1 o 1 o 1 o
1 MB
1 256 K 1 256 K 1 0 1 0
1.5 MB 1 256 K 1 256 K 1 256 K 1
0
2MB 1 256 K 1 256 K 1 256 K 1 256 K
3MB
1 256 K 1 256 K 1 1 MB 1
0
5MB
1 256K 1 256K 1 IMB 1 IMB
9MB 1 256 K 1 256 K 1 4 MB 1
0
2-4 Mainboard Configuration
CH-366~16/20/25G

3. BIOS SETUP
3-I. Setup Utilities Option
BIOS SETUP PROGRAM - AMI BIOS SETUP UTILITIES
(C)1990 American megatrends Inc., All Rights Reserved
STANDARD CMOS SETUP
ADVANCED CMOS SETUP
AUTO CONFIGURATION WITH BIOS DEFAULTS
AUTO CONFIGURATION WITH POWER-ON DEFAULTS
WRITE TO CMOS AND EXIT
DO NOT WRITE TO CMOS AND EXIT
Standard CMOS Setup for Changing Time, Date, Hard Disk Type, etc
ESC: EXIT
1-A: %I
F2/F3:Color
CH-386~16/20/25G
BIOS Setup
FlO:Save
&
3-l

3-2. STANDARD CMOS SETUP OPTION
BIOS SETUP PROGRAM - STANDARD CMOS SETUP
(C) 1990 American Megatrends Inc., All Rights Reserved
I
Date (mm/date/year) : Thu, Jun 20 1991 Base memory
: 640KB
Time (hour/min/sec) : 14 : 45 : 01
Ext. memory : 0 KB
Daylight saving : Disabled
Cyln Head WPcom IZone Sect Size
Hard disk C: type : Not Installed
Hard disk D: type : Not Installed
Floppy drive A: : 1.2 MB, 5’n”
Floppy drive B: : Not Installed
Primary display : Monochrome
Keyboard : Installed
Month : Jan, Feb,....Dec
Date : 01, 02, 03 ,.... 31
Year : 1901, 1902,....2099
i
ESC:Exit
C-+ I+- Select F2/F3:Color PU/PD: Modify
3-2 BIOS Setup

3-3. ADVANCED CMOS SETUP OPTION
BIOS SETUP PROGRAM - ADVANCED CMOS SETUP
(C)l990 American Megatrends Inc., All Rights Reserved
Adaptor ROM Shadow C600,16K
: Disabled
Adaptor ROM Shadow DOOO,16K : Disabled
Adaptor ROM Shadow D600,16K
: Disabled
Adaptor ROM Shadow EOOO, 16K : Disabled
Adaptor ROM Shadow E600,16K
: Disabled
Shadow RAM Option : Disabled
I
ESC:Exit
4+t.- :Sel
(Ctrl ) Pu/Pd:Modify
Fl :Help F2/FB:Color
F5:Old Values F6:BIOS Setup Defaults
F7:PowwOn Defaults
b
l NOTE : Above values are default.
CH-386s.16/20/25G BIOS Setup
3-3