==View or Print jumper settings using Fixedsys or New Courier fonts==
CHICONY CH-471B Ver:1.0 486 VESA Motherboard
- BIOS ID string 09/08/94-sis-85c471B/E/G-2C419C21-00
01/11/95-SIS-85C471B-E-G-2C4I9C21-00
- 4-72 pin SIMM slots (1-128meg FPM DRAM)
- 2-32bit VESA Local Bus slots
- 7-16bit ISA slots
- 32k-1024k CACHE support in 8-32pin sockets + 1 TAG RAM socket
- AWARD Auto-Detect Flash Bios with Energy Mgmt.
- Supports LBA Mode Control + Large Disk DOS Compatibility.
- Green PC Connector
- SiS 85C471 (9507) chipset
- Supports 3.3/5volt CPU's
- ZIF CPU socket which supports these processors:
INTEL 80486DX/DX2/DX4,P24D,P24T
CYRIX CX486S(M6),CX486DX/DX2(M7)
AMD AM486DX/DX2/DX4, and possibly AMD486DX4-S MPUs
- Supports speeds of 25/33/40/50/66/75/100 MHz.
- Bus master IDE interface for upto 4 IDE devices.
- Multi-I/O chip supports 2 - 16550 Fast UART serial ports
1 - parallel port with EPP + ECP, 1 - floppy disk interface.
- manufactured by: CHICONY INC.
- websites: http://www.chicony.com
- VESA local bus drivers are available as DRIVERS.ARJ 81k archive.
=======================================================================
Green PC connector J1, J19 Reset switch J13
Floppy drive J4 Turbo switch J14
Serial ports J7, J5 Turbo LED J15
IDE interface (ISA) J10 Speaker J16
IDE interface (VL) J6 Power LED/key J18
IDE interface LED J12 Voltage connect P4
Game interface J8
Parallel J9
External battery J11
=======================================================================
CMOS memory normal JP1 1-2 (default :-)
CMOS clear JP1 2-3
Floppy drive interface enabled JP6 1-2
" " " disabled JP6 2-3
IDE interface enabled (ISA) JP7 1-2
" " disabled (ISA) JP7 2-3
IDE interface enabled (VL) JP38 1-2
" " disabled (VL) JP38 2-3
Game port enabled JP10 1-2
Game port disabled JP10 2-3
Floppy address 3F0 - 3F7 JP11 2-3 (default)
Floppy address 370 - 377 JP11 1-2
ISA IDE address 170 JP12 1-2 (default)
ISA IDE address 1F0 JP12 2-3
ISA IDE IRQ15 JP32 1-2 (default)
ISA IDE IRQ14 JP32 2-3
Parallel IRQ7 JP30 2-3 (default)
Parallel IRQ5 JP30 1-2
Factory setting JP44 ??? (help)
=========================================================================
DRAM CONFIGURATION
-------------------------------------------------------------------------
Size Bank 0 Bank 1 Bank 2 Bank 3
-------------------------------------------------------------------------
8MB (1)256K x 36 (1)256K x 36 (1)512K x 36 (1)1M x 36
8MB (1)512K x 36 (1)512K x 36 (1)1M x 36 NONE
8MB (1)1M x 36 (1)1M x 36 NONE NONE
8MB (1)2M x 36 NONE NONE NONE
10MB (1)256K x 36 (1)256K x 36 (1)1M x 36 (1)1M x 36
12MB (1)512K x 36 (1)512K x 36 (1)1M x 36 (1)1M x 36
12MB (1)1M x 36 (1)1M x 36 (1)1M x 36 NONE
18MB (1)256K x 36 (1)256K x 36 (1)4M x 36 NONE
16MB (1)1M x 36 (1)1M x 36 (1)1M x 36 (1)1M x 36
16MB (1)2M x 36 (1)2M x 36 NONE NONE
16MB (1)4M x 36 NONE NONE NONE
17MB (1)256K x 36 (1)4M x 36 NONE NONE
18MB (1)512K x 36 (1)4M x 36 NONE NONE
20MB (1)512K x 36 (1)512K x 36 (1)4M x 36 NONE
20MB (1)1M x 36 (1)4M x 36 NONE NONE
24MB (1)512K x 36 (1)512K x 36 (1)1M x 36 (1) 4M x 36
24MB (1)1M x 36 (1)1M x 36 (1)4M x 36 NONE
24MB (1)2M x 36 (1)2M x 36 (1)2M x 36 NONE
32MB (1)4M x 36 (1)4M x 36 NONE NONE
32MB (1)2M x 36 (1)2M x 36 (1)2M x 36 (1)2M x 36
32MB (1)8M x 36 NONE NONE NONE
36MB (1)512K x 36 (1)512K x 36 (1)4M x 36 (1)4M x 36
36MB (1)1M x 36 (1)4M x 36 (1)4M x 36 NONE
36MB (1)1M x 36 (1)8M x 36 NONE NONE
40MB (1)1M x 36 (1)1M x 36 (1)4M x 36 (1)4M x 36
40MB (1)1M x 36 (1)1M x 36 (1)8M x 36 NONE
48MB (1)4M x 36 (1)4M x 36 (1)4M x 36 NONE
48MB (1)4M x 36 (1)8M x 36 NONE NONE
64MB (1)4M x 36 (1)4M x 36 (1)4M x 36 (1)4M x 36
64MB (1)4M x 36 (1)4M x 36 (1)8M x 36 NONE
64MB (1)16M x 36 NONE NONE NONE
64MB (1)8M x 36 (1)8M x 36 NONE NONE
65MB (1)256K x 36 (1)16M x 36 NONE NONE
68MB (1)1M x 36 (1)16M x 36 NONE NONE
68MB (1)1M x 36 (1)8M x 36 (1)8M x 36 NONE
72MB (1)1M x 36 (1)1M x 36 (1)8M x 36 (1)8M x 36
72MB (1)1M x 36 (1)1M x 36 (1)16M x 36 NONE
80MB (1)4M x 36 (1)16M x 36 NONE NONE
80MB (1)4M x 36 (1)8M x 36 (1)8M x 36 NONE
96MB (1)4M x 36 (1)4M x 36 (1)8M x 36 (1)8M x 36
96MB (1)8M x 36 (1)8M x 36 (1)8M x 36 NONE
96MB (1)4M x 36 (1)4M x 36 (1)16M x 36 NONE
128MB (1)8M x 36 (1)8M x 36 (1)8M x 36 (1)8M x 36
128MB (1)16M x 36 (1)16M x 36 NONE NONE
=======================================================================
CACHE
Size JP21 JP22 JP23 JP24 JP25 JP26 JP27 JP28
---------------------------------------------------------------------
32K 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3
64K 2-3 1-2 2-3 2-3 2-3 2-3 2-3 1-2
128K 1-2 2-3 1-2 1-2 2-3 2-3 1-2 1-2
256K 2-3 2-3 2-3 2-3 2-3 1-2 1-2 1-2
512K 1-2 2-3 1-2 1-2 1-2 1-2 1-2 1-2
1024K 2-3 2-3 2-3 2-3 1-2 1-2 1-2 1-2
=======================================================================
CPU Type JP39 JP42 JP45 JP46
---------------------------------------------------------------
CX486S/DX/DX2 7-8,9-10,11-12 open open open
80486SX open open 2-3 2-3
SL80486SX/SX2 7-8,9-10,11-12 open 1-2 2-3
AM486DX/DX2 open open 2-3 2-3
80486DX/DX2 open open 2-3 2-3
SL80486DX/DX2 7-8,9-10,11-12 open 1-2 2-3
80486DX4 7-8,9-10,11-12 open 1-2 2-3
P24D/P24T 7-8,9-10,11-12 open open open
CPU Type JP47 JP48 JP49 JP53 JP54
---------------------------------------------------------------
CX486S/DX/DX2 open open open closed 2-3
80486SX 2-3 2-3 2-3 open 2-3
SL80486SX/SX2 2-3 2-3 2-3 closed 2-3
AM486DX/DX2 2-3 2-3 2-3 open 2-3
80486DX/DX2 2-3 2-3 2-3 open 2-3
SL80486DX/DX2 2-3 2-3 2-3 closed 2-3
80486DX4 2-3 2-3 2-3 closed 1-2
P24D/P24T open open open closed 2-3
=======================================================================
CPU type JP19 JP20
-------------------------------------
Intel/AMD 1-2 2-3
CYRIX 2-3 1-2
Intel P24D/P24T 1-2 1-2
CPU type JP40 JP41 JP55
---------------------------------------------
80487SX 1-2,3-4 2-3 open
80486SX/CX M6/UMC U5S 2-3 open open
CX M7 1-2,3-4 1-2 closed
Intel/AMD/Cyrix 1-2,3-4 1-2 open
=======================================================================
CPU speed JP36 JP37
-----------------------------
25MHz open open
33MHz closed closed
40MHz open closed
50MHz closed open
50iMHz open open
66iMHz closed closed
75iMHz open open
100iMHz closed closed
CPU multiplier JP50
-----------------------------
2x 2-3
2.5x 1-2
3x open
CPU voltage P3
---------------------------------
3.3v 1-2,4-5,6-7
5v 2-3,5-6,8-9
VESA wait state JP52
---------------------------------
0 wait state open
1 wait state closed
BUS speed JP52
---------------------------------
<= 33MHz open
> 33MHz closed
=======================================================================
( Serial Port 1 ) ( Serial Port 2 )
Port Address JP2 JP3 JP4 JP5
-----------------------------------------------------
3F8 1-2 1-2 1-2 1-2
2F8 1-2 2-3 1-2 2-3
3E8 2-3 1-2 2-3 1-2
disabled 2-3 2-3 2-3 2-3
COM1 COM2 JP29
----------------------------------------
IRQ3 IRQ4 1-2,3-4
IRQ4 IRQ3 1-3,2-4
Parallel Address JP8 JP9
------------------------------------
378 1-2 2-3
278 1-2 1-2
3BC 2-3 1-2
disabled 2-3 2-3
Floppy select JP17 JP18
----------------------------------------
all floppy types 1-2 1-2
2.88mb only 2-3 2-3
=======================================================================
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