BRAVO LC (LC2) (202560-XXX) Motherboard Settings and Configuration

AST RESEARCH, INC.

BRAVO LC (LC2) (202560-XXX)

Processor
80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor Speed
25/33/50(internal)/66(internal)MHz
Chip Set
AST
Max. Onboard DRAM
64MB
Cache
64/256KB
BIOS
AST
Dimensions
330mm x 218mm
I/O Options
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
PS/2 mouse port
J12
Serial port 2
J20
Parallel port
J13
IDE interface
J22
Serial port 1
J14
Floppy drive interface
J24
VGA port
J18
Chassis fan power
J28
VGA feature connector
J19
Front panel connector
J29

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

Monitor type select monochrome
E4
Open
»
Video adapter enabled
E5
Closed

Video adapter disabled
E5
Open
»
CMOS memory normal operation
E6
Closed

CMOS memory clear
E6
Open
»
Parallel port IRQ select IRQ7
E12
pins 1 & 2 closed

Parallel port IRQ select IRQ5
E12
pins 2 & 3 closed
»
Factory configured - do not alter
E17
pins 1 & 2 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
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

DRAM CONFIGURATION (CON’T)
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
64KB
Open
Open
Open
256KB
Closed
Closed
Closed

CPU UPGRADE CONFIGURATION
Type
E11
E13
E14
E15
E16
None
Open
Open
1 & 2
1 & 2
1 & 2
80846SX
Closed
Open
1 & 2
1 & 2
1 & 2
80487SX
Closed
Closed
1 & 2
1 & 2
2 & 3
80486DX/DX2
Closed
Closed
2 & 3
1 & 2
2 & 3
Overdrive (ODPR)
Closed
Closed
2 & 3
1 & 2
2 & 3
Overdrive (ODP)
Closed
Closed
1 & 2
1 & 2
2 & 3
Overdrive (DX2)
Closed
Closed
1 & 2
2 & 3
2 & 3

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

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

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BRAVO LC (LC2) (202560-XXX) Motherboard Settings and Configuration

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Processor	80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive
Processor Speed	25/33/50(internal)/66(internal)MHz
Chip Set	AST
Max. Onboard DRAM	64MB
Cache	64/256KB
BIOS	AST
Dimensions	330mm x 218mm
I/O Options	Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse port	J12	Serial port 2	J20
Parallel port	J13	IDE interface	J22
Serial port 1	J14	Floppy drive interface	J24
VGA port	J18	Chassis fan power	J28
VGA feature connector	J19	Front panel connector	J29

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Monitor type select color	E4	Closed
	Monitor type select monochrome	E4	Open
»	Video adapter enabled	E5	Closed
	Video adapter disabled	E5	Open
»	CMOS memory normal operation	E6	Closed
	CMOS memory clear	E6	Open
»	Parallel port IRQ select IRQ7	E12	pins 1 & 2 closed
	Parallel port IRQ select IRQ5	E12	pins 2 & 3 closed
»	Factory configured - do not alter	E17	pins 1 & 2 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
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

DRAM CONFIGURATION (CON’T)
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
64KB	Open	Open	Open
256KB	Closed	Closed	Closed

CPU UPGRADE CONFIGURATION
Type	E11	E13	E14	E15	E16
None	Open	Open	1 & 2	1 & 2	1 & 2
80846SX	Closed	Open	1 & 2	1 & 2	1 & 2
80487SX	Closed	Closed	1 & 2	1 & 2	2 & 3
80486DX/DX2	Closed	Closed	2 & 3	1 & 2	2 & 3
Overdrive (ODPR)	Closed	Closed	2 & 3	1 & 2	2 & 3
Overdrive (ODP)	Closed	Closed	1 & 2	1 & 2	2 & 3
Overdrive (DX2)	Closed	Closed	1 & 2	2 & 3	2 & 3

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

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