ELEGANCE 486 25/33 Motherboard Settings and Configuration

NORTHGATE COMPUTER SYSTEMS, INC.

ELEGANCE 486 25/33

Processor
80486DX
Processor Speed
25/33MHz
Chip Set
OPTI
Max. Onboard DRAM
8MB
Cache
128KB
BIOS
AMI
Dimensions
350mm x 304mm
I/O Options
Parallel port, serial ports (2), 32-bit external memory card slot
NPU Options
4167

CONNECTIONS
Purpose
Location
Purpose
Location
Turbo LED
J3
Serial port 1
J9
Power LED & keylock
J4
Serial port 2
J10
Speaker
J5
32-bit external memory card
S1
Reset switch
J6
Turbo switch
W6
Parallel port
J8

USER CONFIGURABLE SETTINGS
Function
Jumper/Switch
Position
»
Parallel port enabled
SW2/3
Off

Parallel port disabled
SW2/3
On
»
Parallel port select LPT1
SW2/4
Off

Parallel port select LPT2
SW2/4
On
»
Factory configured - do not alter
W1
Open
»
Factory configured - do not alter
W4
pins 2 & 3 closed
»
Altered cache miss wait state select 25MHz CPU
W5
pins 2 & 3 closed

Altered cache miss wait state select 33MHz CPU
W5
pins 1 & 2 closed
»
Monitor type select color
W7
pins 2 & 3 closed

Monitor type select monochrome
W7
pins 1 & 2 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(4) 256K x 9
NONE
NONE
NONE
2MB
(4) 256K x 9
(4) 256K x 9
NONE
NONE
3MB
(4) 256K x 9
(4) 256K x 9
(4) 256K x 9
NONE
4MB
(4) 256K x 9
(4) 256K x 9
(4) 256K x 9
(4) 256K x 9
4MB
(4) 1M x 9
NONE
NONE
NONE
5MB
(4) 1M x 9
NONE
(4) 256K x 9
NONE
6MB
(4) 1M x 9
NONE
(4) 256K x 9
(4) 256K x 9
8MB
(4) 1M x 9
(4) 1M x 9
NONE
NONE
9MB
(4) 1M x 9
(4) 1M x 9
(4) 256K x 9
NONE
10MB
(4) 1M x 9
(4) 1M x 9
(4) 256K x 9
(4) 256K x 9
12MB
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
NONE
16MB
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
(4) 1M x 9
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed at S1.

DRAM JUMPER/SWITCH CONFIGURATION
Size
SW1/1
SW1/2
SW1/3
SW1/4
W8
W9
1MB
Closed
Open
Closed
Closed
2 & 3
2 & 3
2MB
Open
Open
Closed
Open
2 & 3
2 & 3
3MB
Open
Open
Open
Closed
2 & 3
2 & 3
4MB
Open
Open
Open
Closed
2 & 3
2 & 3
4MB
Closed
Closed
Closed
Closed
1 & 2
1 & 2
5MB
Closed
Closed
Closed
Open
1 & 2
1 & 2
6MB
Closed
Closed
Closed
Open
1 & 2
1 & 2
8MB
Open
Closed
Closed
Open
1 & 2
1 & 2
9MB
Open
Closed
Open
Closed
1 & 2
1 & 2
10MB
Open
Closed
Open
Closed
1 & 2
1 & 2
12MB
Open
Closed
Open
Closed
1 & 2
1 & 2
16MB
Open
Closed
Open
Open
1 & 2
1 & 2
Note:Pins designated should be in the closed position.

CACHE CONFIGURATION
Size
Bank 0
TAG
64KB
(8) 64K x 1
(2) 64K x 1
128KB
(8) 64K x 4
(2) 64K x 4

CACHE JUMPER CONFIGURATION
Size
W2
W3
64KB
pin 1 & 2 closed
pin 1 & 2 closed
128KB
pin 2 & 3 closed
pin 2 & 3 closed

PARALLEL PORT IRQ CONFIGURATION
IRQ
SW3/3
SW3/4
IRQ7
Off
On
IRQ5
On
Off

SERIAL PORT 1 CONFIGURATION
Setting
SW2/1
SW3/1
Enabled
Off
On
Disabled
On
Off

SERIAL PORT 2 CONFIGURATION
Setting
SW2/2
SW3/2
Enabled
Off
On
Disabled
On
Off

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ELEGANCE 486 25/33 Motherboard Settings and Configuration

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Processor	80486DX
Processor Speed	25/33MHz
Chip Set	OPTI
Max. Onboard DRAM	8MB
Cache	128KB
BIOS	AMI
Dimensions	350mm x 304mm
I/O Options	Parallel port, serial ports (2), 32-bit external memory card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Turbo LED	J3	Serial port 1	J9
Power LED & keylock	J4	Serial port 2	J10
Speaker	J5	32-bit external memory card	S1
Reset switch	J6	Turbo switch	W6
Parallel port	J8

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	Parallel port enabled	SW2/3	Off
	Parallel port disabled	SW2/3	On
»	Parallel port select LPT1	SW2/4	Off
	Parallel port select LPT2	SW2/4	On
»	Factory configured - do not alter	W1	Open
»	Factory configured - do not alter	W4	pins 2 & 3 closed
»	Altered cache miss wait state select 25MHz CPU	W5	pins 2 & 3 closed
	Altered cache miss wait state select 33MHz CPU	W5	pins 1 & 2 closed
»	Monitor type select color	W7	pins 2 & 3 closed
	Monitor type select monochrome	W7	pins 1 & 2 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(4) 256K x 9	NONE	NONE	NONE
2MB	(4) 256K x 9	(4) 256K x 9	NONE	NONE
3MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	NONE
4MB	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE	NONE	NONE
5MB	(4) 1M x 9	NONE	(4) 256K x 9	NONE
6MB	(4) 1M x 9	NONE	(4) 256K x 9	(4) 256K x 9
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
9MB	(4) 1M x 9	(4) 1M x 9	(4) 256K x 9	NONE
10MB	(4) 1M x 9	(4) 1M x 9	(4) 256K x 9	(4) 256K x 9
12MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	NONE
16MB	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9	(4) 1M x 9
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed at S1.

DRAM JUMPER/SWITCH CONFIGURATION
Size	SW1/1	SW1/2	SW1/3	SW1/4	W8	W9
1MB	Closed	Open	Closed	Closed	2 & 3	2 & 3
2MB	Open	Open	Closed	Open	2 & 3	2 & 3
3MB	Open	Open	Open	Closed	2 & 3	2 & 3
4MB	Open	Open	Open	Closed	2 & 3	2 & 3
4MB	Closed	Closed	Closed	Closed	1 & 2	1 & 2
5MB	Closed	Closed	Closed	Open	1 & 2	1 & 2
6MB	Closed	Closed	Closed	Open	1 & 2	1 & 2
8MB	Open	Closed	Closed	Open	1 & 2	1 & 2
9MB	Open	Closed	Open	Closed	1 & 2	1 & 2
10MB	Open	Closed	Open	Closed	1 & 2	1 & 2
12MB	Open	Closed	Open	Closed	1 & 2	1 & 2
16MB	Open	Closed	Open	Open	1 & 2	1 & 2
Note:Pins designated should be in the closed position.

CACHE CONFIGURATION
Size	Bank 0	TAG
64KB	(8) 64K x 1	(2) 64K x 1
128KB	(8) 64K x 4	(2) 64K x 4

CACHE JUMPER CONFIGURATION
Size	W2	W3
64KB	pin 1 & 2 closed	pin 1 & 2 closed
128KB	pin 2 & 3 closed	pin 2 & 3 closed

PARALLEL PORT IRQ CONFIGURATION
IRQ	SW3/3	SW3/4
IRQ7	Off	On
IRQ5	On	Off

SERIAL PORT 1 CONFIGURATION
Setting	SW2/1	SW3/1
Enabled	Off	On
Disabled	On	Off

SERIAL PORT 2 CONFIGURATION
Setting	SW2/2	SW3/2
Enabled	Off	On
Disabled	On	Off