CS486S Motherboard Settings and Configuration

ICL

CS486S

Processor
80487SX/80486DX
Processor Speed
20/33MHz
Chip Set
Unidentified
Max. Onboard DRAM
26MB
Cache
None
BIOS
ICL
Dimensions
330mm x 218mm
I/O Options
PS/2 mouse port, parallel port, serial ports (2), VGA port, floppy drive interface, IDE interface
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Parallel port
CN1
Floppy drive interface
CN7
Serial port 1
CN2
PS/2 mouse connector
CN8
Serial port 2
CN3
Keyboard connector
CN9
VGA port
CN4
Front panel connector
CN10
External battery
CN5
Riser slot
SL1
IDE interface
CN6

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
On board VGA enabled
J1
pins 1 & 2 closed

On board VGA disabled
J1
pins 2 & 3 closed
»
Factory configured - do not alter
J2
pins 1 & 2 closed
»
Factory configured - do not alter
J3
pins 1 & 2 closed
»
Factory configured - do not alter
J4
Closed
»
Factory configured - do not alter
J5
pins 1 & 2 closed
»
Factory configured - do not alter
J6
pins 1 & 2 closed
»
Factory configured - do not alter
J7
pins 2 & 3 closed
»
BIOS type select 27512
J15
pins 1 & 2 closed

BIOS type select 27256
J15
pins 2 & 3 closed
»
CMOS memory normal operation
J18
Open

CMOS memory clear
J18
Closed
»
VGA uses 0 wait states
J22
pins 2 & 3 closed

VGA uses IRQ9
J22
pins 1 & 2 closed
»
ATREF# enabled
J23
pins 1 & 2 closed

ATREF# disabled
J23
pins 2 & 3 closed
»
BIOS bit select 8-bit BIOS
J71
pins 2 & 3 closed

BIOS bit select 16-bit BIOS
J71
pins 1 & 2 closed
»
Floppy drive interface enabled
SW1/1
On

Floppy drive interface disabled
SW1/1
Off
»
IDE interface enabled
SW1/2
On

IDE interface disabled
SW1/2
Off
»
Serial port 1 enabled
SW1/3
On

Serial port 1 disabled
SW1/3
Off
»
Serial port 2 enabled
SW1/4
On

Serial port 2 disabled
SW1/4
Off
»
Parallel port enabled
SW1/5
On

Parallel port disabled
SW1/5
Off
»
Memory 0F0000H-0FFFFFFH available for expansion
SW1/6
Off

Memory 0F0000H-0FFFFFFH reserved for system board
SW1/6
On
»
Reset disabled
SW1/7
Off

Reset enabled
SW1/7
On
»
Password disabled
SW1/8
On

Password enabled
SW1/8
Off
Note: The location of jumpers J2, J4, J5, J6, &J7 and SW1 are unidentified.

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
2MB
2MB
NONE
NONE
NONE
4MB
2MB
(1) 512K x 36
NONE
NONE
6MB
2MB
(1) 512K x 36
(1) 512K x 36
NONE
6MB
2MB
(1) 1M x 36
NONE
NONE
8MB
2MB
(1) 512K x 36
(1) 512K x 36
(1) 512K x 36
8MB
2MB
(1) 512K x 36
(1) 1M x 36
NONE
10MB
2MB
(1) 512K x 36
(1) 512K x 36
(1) 1M x 36
10MB
2MB
(1) 2M x 36
NONE
NONE
12MB
2MB
(1) 512K x 36
(1) 2M x 36
NONE
14MB
2MB
(1) 512K x 36
(1) 512K x 36
(1) 2M x 36
14MB
2MB
(1) 1M x 36
(1) 2M x 36
NONE
16MB
2MB
(1) 512K x 36
(1) 1M x 36
(1) 2M x 36
18MB
2MB
(1) 2M x 36
(1) 2M x 36
NONE
20MB
2MB
(1) 512K x 36
(1) 2M x 36
(1) 2M x 36
22MB
2MB
(1) 1M x 36
(1) 2M x 36
(1) 2M x 36
26MB
2MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
Note: Bank 0 is factory installed and is not configurable.

CPU SPEED CONFIGURATION
Speed
JP102
20MHz
Closed
33MHz
Open

Headaches Begone! A Systemic Approach To Healing Your Headaches

Don't Let Your Bike Seat Ruin Your Sex Life Book

CS486S Motherboard Settings and Configuration

Search

My Books

Discover

Processor	80487SX/80486DX
Processor Speed	20/33MHz
Chip Set	Unidentified
Max. Onboard DRAM	26MB
Cache	None
BIOS	ICL
Dimensions	330mm x 218mm
I/O Options	PS/2 mouse port, parallel port, serial ports (2), VGA port, floppy drive interface, IDE interface
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Parallel port	CN1	Floppy drive interface	CN7
Serial port 1	CN2	PS/2 mouse connector	CN8
Serial port 2	CN3	Keyboard connector	CN9
VGA port	CN4	Front panel connector	CN10
External battery	CN5	Riser slot	SL1
IDE interface	CN6

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	On board VGA enabled	J1	pins 1 & 2 closed
	On board VGA disabled	J1	pins 2 & 3 closed
»	Factory configured - do not alter	J2	pins 1 & 2 closed
»	Factory configured - do not alter	J3	pins 1 & 2 closed
»	Factory configured - do not alter	J4	Closed
»	Factory configured - do not alter	J5	pins 1 & 2 closed
»	Factory configured - do not alter	J6	pins 1 & 2 closed
»	Factory configured - do not alter	J7	pins 2 & 3 closed
»	BIOS type select 27512	J15	pins 1 & 2 closed
	BIOS type select 27256	J15	pins 2 & 3 closed
»	CMOS memory normal operation	J18	Open
	CMOS memory clear	J18	Closed
»	VGA uses 0 wait states	J22	pins 2 & 3 closed
	VGA uses IRQ9	J22	pins 1 & 2 closed
»	ATREF# enabled	J23	pins 1 & 2 closed
	ATREF# disabled	J23	pins 2 & 3 closed
»	BIOS bit select 8-bit BIOS	J71	pins 2 & 3 closed
	BIOS bit select 16-bit BIOS	J71	pins 1 & 2 closed
»	Floppy drive interface enabled	SW1/1	On
	Floppy drive interface disabled	SW1/1	Off
»	IDE interface enabled	SW1/2	On
	IDE interface disabled	SW1/2	Off
»	Serial port 1 enabled	SW1/3	On
	Serial port 1 disabled	SW1/3	Off
»	Serial port 2 enabled	SW1/4	On
	Serial port 2 disabled	SW1/4	Off
»	Parallel port enabled	SW1/5	On
	Parallel port disabled	SW1/5	Off
»	Memory 0F0000H-0FFFFFFH available for expansion	SW1/6	Off
	Memory 0F0000H-0FFFFFFH reserved for system board	SW1/6	On
»	Reset disabled	SW1/7	Off
	Reset enabled	SW1/7	On
»	Password disabled	SW1/8	On
	Password enabled	SW1/8	Off
Note: The location of jumpers J2, J4, J5, J6, &J7 and SW1 are unidentified.

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	2MB	NONE	NONE	NONE
4MB	2MB	(1) 512K x 36	NONE	NONE
6MB	2MB	(1) 512K x 36	(1) 512K x 36	NONE
6MB	2MB	(1) 1M x 36	NONE	NONE
8MB	2MB	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
8MB	2MB	(1) 512K x 36	(1) 1M x 36	NONE
10MB	2MB	(1) 512K x 36	(1) 512K x 36	(1) 1M x 36
10MB	2MB	(1) 2M x 36	NONE	NONE
12MB	2MB	(1) 512K x 36	(1) 2M x 36	NONE
14MB	2MB	(1) 512K x 36	(1) 512K x 36	(1) 2M x 36
14MB	2MB	(1) 1M x 36	(1) 2M x 36	NONE
16MB	2MB	(1) 512K x 36	(1) 1M x 36	(1) 2M x 36
18MB	2MB	(1) 2M x 36	(1) 2M x 36	NONE
20MB	2MB	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36
22MB	2MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36
26MB	2MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
Note: Bank 0 is factory installed and is not configurable.

CPU SPEED CONFIGURATION
Speed	JP102
20MHz	Closed
33MHz	Open