ADVANTAGE! PRO 4/25S Motherboard Settings and Configuration

AST RESEARCH, INC.

ADVANTAGE! PRO 4/25S

Processor
80486SX/ODP486/80487SX/ODPR486/80486DX/80486DX2/P24T
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
Unidentified
Video Chip Set
Cirrus Logic
Maximum Onboard Memory
64MB
Maximum Video Memory
1MB
Cache
64/256KB
BIOS
Unidentified
Dimensions
355mm x 304mm
I/O Options
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PS/2 mouse port
CN1
8514 video pass through connector
J19
Serial port
CN2
IDE interface
J22
Serial port
CN3
Floppy drive interface
J24
Parallel port
CN4
Chassis fan power
J28
VGA port
CN5
Front panel LEDs
J29

USER CONFIGURABLE SETTINGS
Function
Label
Position
»
Monitor type select color
E4
Closed

Monitor type select monochrome
E4
Open
»
On board video enabled
E5
Closed

On board video disabled
E5
Open
»
Password normal operation
E6
Closed

Password clear
E6
Open
»
Parallel port IRQ select IRQ7
E12
Pins 1 & 2 closed

Parallel port IRQ select IRQ5
E12
Pins 2 & 3 closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
1MB
(1) 256K x 36
None
None
None
2MB
(1) 256K x 36
(1) 256K x 36
None
None
3MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
None
4MB
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
4MB
(1) 1M x 36
None
None
None
5MB
(1) 1M x 36
(1) 256K x 36
None
None
6MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
None
7MB
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
8MB
(1) 1M x 36
(1) 1M x 36
None
None
9MB
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
None
10MB
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
None
13MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
16MB
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
16MB
(1) 4M x 36
None
None
None
17MB
(1) 4M x 36
(1) 256K x 36
None
None
18MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
None
19MB
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
(1) 256K x 36
20MB
(1) 4M x 36
(1) 1M x 36
None
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
21MB
(1) 4M x 36
(1) 1M x 36
(1) 256K x 36
None
22MB
(1) 4M x 36
(1) 1M x 36
(1) 256K x 36
(1) 256K x 36
24MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
None
25MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 256K x 36
28MB
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
(1) 1M x 36
32MB
(1) 4M x 36
(1) 4M x 36
None
None
33MB
(1) 4M x 36
(1) 4M x 36
(1) 256K x 36
None
34MB
(1) 4M x 36
(1) 4M x 36
(1) 256K x 36
(1) 256K x 36
36MB
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
None
37MB
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
(1) 256K x 36
40MB
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
(1) 1M x 36
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
None
49MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 256K x 36
52MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 1M x 36
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36

CACHE CONFIGURATION
Size
Bank 0
TAG
64KB
(8) 8K x 8
(1) 8K x 8
256KB
(8) 32K x 8
(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size
E1
E2
E3
None
Open
Open
Open
64KB
Open
Open
Open
256KB
Closed
Closed
Closed

VIDEO MEMORY CONFIGURATION
Size
Bank 0
Bank 1
512KB
(4) 256K x 4
None
1MB
(4) 256K x 4
(4) 256K x 4
Note: Bank 0 is factory installed and is not configurable.

CPU SPEED SELECTION
Speed
E9
E10
25MHz
Closed
Closed
33MHz
Open
Closed
50iMHz
Closed
Closed
66iMHz
Open
Closed

CPU TYPE SELECTION
Type
E11
E13
E14
E15
E16
E17
80486SX (PQFP)
Open
Open
1 & 2
1 & 2
1 & 2
1 & 2
80486SX (PGA)
Closed
Open
1 & 2
1 & 2
1 & 2
1 & 2
ODP486
Closed
Closed
1 & 2
1 & 2
2 & 3
1 & 2
80487SX
Closed
Closed
1 & 2
1 & 2
2 & 3
1 & 2
ODPR486
Closed
Closed
2 & 3
1 & 2
2 & 3
1 & 2
80486DX
Closed
Closed
2 & 3
1 & 2
2 & 3
1 & 2
80486DX2
Closed
Closed
2 & 3
1 & 2
2 & 3
1 & 2
P24T
Closed
Closed
2 & 3
2 & 3
2 & 3
Open
Note: Pins designated should be in the closed position. The location of the PQFP socket is unidentified.

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Processor	80486SX/ODP486/80487SX/ODPR486/80486DX/80486DX2/P24T
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	Unidentified
Video Chip Set	Cirrus Logic
Maximum Onboard Memory	64MB
Maximum Video Memory	1MB
Cache	64/256KB
BIOS	Unidentified
Dimensions	355mm x 304mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), 8514 video pass through connector, VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	CN1	8514 video pass through connector	J19
Serial port	CN2	IDE interface	J22
Serial port	CN3	Floppy drive interface	J24
Parallel port	CN4	Chassis fan power	J28
VGA port	CN5	Front panel LEDs	J29

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Monitor type select color	E4	Closed
	Monitor type select monochrome	E4	Open
»	On board video enabled	E5	Closed
	On board video disabled	E5	Open
»	Password normal operation	E6	Closed
	Password clear	E6	Open
»	Parallel port IRQ select IRQ7	E12	Pins 1 & 2 closed
	Parallel port IRQ select IRQ5	E12	Pins 2 & 3 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
2MB	(1) 256K x 36	(1) 256K x 36	None	None
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	None
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 1M x 36	None	None	None
5MB	(1) 1M x 36	(1) 256K x 36	None	None
6MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	None
7MB	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
8MB	(1) 1M x 36	(1) 1M x 36	None	None
9MB	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36	None
10MB	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
13MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None	None	None
17MB	(1) 4M x 36	(1) 256K x 36	None	None
18MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	None
19MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
20MB	(1) 4M x 36	(1) 1M x 36	None	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
21MB	(1) 4M x 36	(1) 1M x 36	(1) 256K x 36	None
22MB	(1) 4M x 36	(1) 1M x 36	(1) 256K x 36	(1) 256K x 36
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	None
25MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 256K x 36
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
32MB	(1) 4M x 36	(1) 4M x 36	None	None
33MB	(1) 4M x 36	(1) 4M x 36	(1) 256K x 36	None
34MB	(1) 4M x 36	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36
36MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	None
37MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	(1) 256K x 36
40MB	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	None
49MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 256K x 36
52MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 1M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36

CACHE CONFIGURATION
Size	Bank 0	TAG
64KB	(8) 8K x 8	(1) 8K x 8
256KB	(8) 32K x 8	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	E1	E2	E3
None	Open	Open	Open
64KB	Open	Open	Open
256KB	Closed	Closed	Closed

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1
512KB	(4) 256K x 4	None
1MB	(4) 256K x 4	(4) 256K x 4
Note: Bank 0 is factory installed and is not configurable.

CPU SPEED SELECTION
Speed	E9	E10
25MHz	Closed	Closed
33MHz	Open	Closed
50iMHz	Closed	Closed
66iMHz	Open	Closed

CPU TYPE SELECTION
Type	E11	E13	E14	E15	E16	E17
80486SX (PQFP)	Open	Open	1 & 2	1 & 2	1 & 2	1 & 2
80486SX (PGA)	Closed	Open	1 & 2	1 & 2	1 & 2	1 & 2
ODP486	Closed	Closed	1 & 2	1 & 2	2 & 3	1 & 2
80487SX	Closed	Closed	1 & 2	1 & 2	2 & 3	1 & 2
ODPR486	Closed	Closed	2 & 3	1 & 2	2 & 3	1 & 2
80486DX	Closed	Closed	2 & 3	1 & 2	2 & 3	1 & 2
80486DX2	Closed	Closed	2 & 3	1 & 2	2 & 3	1 & 2
P24T	Closed	Closed	2 & 3	2 & 3	2 & 3	Open
Note: Pins designated should be in the closed position. The location of the PQFP socket is unidentified.