486SH REV. 3.12 Motherboard Settings and Configuration

ADVANCED INTEGRATION RESEARCH, INC.

486SH REV. 3.12

Processor
80486SX/80487SX/80486DX/ODP486SX/AM486DX2/80486DX2/AM486DX4/ 80486DX4/Pentium Overdrive
Processor Speed
25/33/40/50(internal)/50/66(internal)75(internal)/100(internal)MHz
Chip Set
SIS
Max. Onboard DRAM
128MB
Cache
128/256/512KB
BIOS
AMI
Dimensions
254mm x 218mm
I/O Options
32-bit VESA local bus slots (3)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Power LED & keylock
J1
Speaker
J4
Reset switch
J2
Turbo LED
J5
Turbo switch
J3
32-bit VESA local bus slots
SL1 - SL3

USER CONFIGURABLE SETTINGS
Function
Jumper
Position

Turbo enabled
J3
pins 2 & 3 closed

Turbo disabled
J3
pins 1 & 2 closed
»
CMOS memory normal operation
JP16
pins 1 & 2 closed

CMOS memory clear
JP16
pins 2 & 3 closed
»
Monitor type select VGA/EGA/monochrome
JP17
Open

Monitor type select CGA
JP17
Closed

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
2MB
(1) 512K x 36
NONE
NONE
NONE
4MB
(1) 512K x 36
NONE
(1) 512K x 36
NONE
4MB
(1) 1M x 36
NONE
NONE
NONE
6MB
(1) 512K x 36
NONE
(1) 1M x 36
NONE
8MB
(1) 512K x 36
(1) 1M x 36
(1) 512K x 36
NONE
8MB
(1) 1M x 36
NONE
(1) 1M x 36
NONE
8MB
(1) 2M x 36
NONE
NONE
NONE
12MB
(1) 512K x 36
(1) 1M x 36
(1) 512K x 36
(1) 1M x 36
12MB
(1) 1M x 36
(1) 1M x 36
(1) 1M 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
NONE
(1) 2M x 36
NONE
16MB
(1) 4M x 36
NONE
NONE
NONE
18MB
(1) 512K x 36
NONE
(1) 4M x 36
NONE
20MB
(1) 512K x 36
(1) 4M x 36
(1) 512K x 36
NONE
20MB
(1) 1M x 36
NONE
(1) 4M x 36
NONE
24MB
(1) 512K x 36
(1) 1M x 36
(1) 512K x 36
(1) 4M x 36
24MB
(1) 1M x 36
(1) 4M x 36
(1) 1M x 36
NONE
24MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
NONE
32MB
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
(1) 2M x 36
32MB
(1) 4M x 36
NONE
(1) 4M x 36
NONE
32MB
(1) 8M x 36
NONE
NONE
NONE
36MB
(1) 512K x 36
(1) 4M x 36
(1) 512K 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
NONE
(1) 8M x 36
NONE
40MB
(1) 1M x 36
(1) 4M x 36
(1) 1M x 36
(1) 4M x 36
40MB
(1) 1M x 36
(1) 8M x 36
(1) 1M x 36
NONE
48MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
NONE
48MB
(1) 4M x 36
NONE
(1) 8M x 36
NONE
64MB
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
(1) 4M x 36
64MB
(1) 16M x 36
NONE
NONE
NONE
64MB
(1) 4M x 36
(1) 8M x 36
(1) 4M x 36
NONE
64MB
(1) 8M x 36
NONE
(1) 8M x 36
NONE
68MB
(1) 1M x 36
NONE
(1) 16M x 36
NONE
68MB
(1) 1M x 36
(1) 8M x 36
(1) 8M x 36
NONE

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
72MB
(1) 1M x 36
(1) 16M x 36
(1) 1M x 36
NONE
72MB
(1) 1M x 36
(1) 8M x 36
(1) 1M x 36
(1) 8M x 36
80MB
(1) 4M x 36
NONE
(1) 16M x 36
NONE
80MB
(1) 4M x 36
(1) 8M x 36
(1) 8M x 36
NONE
96MB
(1) 4M x 36
(1) 16M x 36
(1) 4M x 36
NONE
96MB
(1) 4M x 36
(1) 8M x 36
(1) 4M x 36
(1) 8M x 36
96MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
NONE
128MB
(1) 16M x 36
NONE
(1) 16M x 36
NONE
128MB
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36
(1) 8M x 36

CACHE CONFIGURATION
Size
Bank 0
Bank 1
TAG
128KB
(4) 32K x 8
NONE
(1) 32K x 8
256KB (A)
(4) 32K x 8
(4) 32K x 8
(1) 32K x 8
256KB (B)
(4) 64K x 8
NONE
(1) 32K x 8
512KB
(4) 128K x 8
NONE
(1) 32K x 8
Note: The orientation of Banks 0 & 1 are unidentified.

CACHE JUMPER CONFIGURATION
Size
JP1
JP2
JP3
JP4
JP33
128KB
1 & 2
1 & 2
1 & 2, 3 & 4
1 & 2
2 & 3
256KB (A)
2 & 3
2 & 3
2 & 3, 4 & 5
1 & 2
2 & 3
256KB (B)
1 & 2
2 & 3
1 & 2, 3 & 4
1 & 2
1 & 2
512KB
1 & 2
2 & 3
1 & 2, 3 & 4
2 & 3
2 & 3
Note: The location of JP33 is unidentified. Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type
JP8
JP9
JP11
JP30
JP36
80486SX
2 & 3
Open
Open
Open
1 & 3, 2 & 4
80487SX
1 & 2
Closed
2 & 3
Open
1 & 3, 2 & 4
ODP486SX
1 & 2
Closed
2 & 3
Open
1 & 3, 2 & 4
80486DX
1 & 2
Closed
3 & 4
Open
1 & 3, 2 & 4
AM486DX2
1 & 2
Closed
3 & 4
Open
3 & 5, 4 & 6
80486DX2
1 & 2
Closed
3 & 4
Open
1 & 3, 2 & 4
AM486DX4
1 & 2
Closed
3 & 4
Closed
3 & 5, 4 & 6
80486DX4
1 & 2
Closed
3 & 4
Open
3 & 5, 4 & 6
P24T
1 & 2
Closed
2 & 3
Open
1 & 3, 2 & 4
Note: The location of JP30 is unidentified. Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed
JP5
JP6
JP7
JP29
25MHz
Closed
Closed
Open
pins 1 & 2 closed
33MHz
Open
Closed
Closed
pins 1 & 2 closed
40MHz
Closed
Open
Open
pins 2 & 3 closed
50iMHz
Closed
Closed
Open
pins 1 & 2 closed
50MHz
Open
Open
Closed
pins 2 & 3 closed
66iMHz
Open
Closed
Closed
pins 1 & 2 closed
75iMHz
Closed
Closed
Open
pins 1 & 2 closed
100iMHz
Open
Closed
Closed
pins 2 & 3 closed

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486SH REV. 3.12 Motherboard Settings and Configuration

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Processor	80486SX/80487SX/80486DX/ODP486SX/AM486DX2/80486DX2/AM486DX4/ 80486DX4/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/50/66(internal)75(internal)/100(internal)MHz
Chip Set	SIS
Max. Onboard DRAM	128MB
Cache	128/256/512KB
BIOS	AMI
Dimensions	254mm x 218mm
I/O Options	32-bit VESA local bus slots (3)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Power LED & keylock	J1	Speaker	J4
Reset switch	J2	Turbo LED	J5
Turbo switch	J3	32-bit VESA local bus slots	SL1 - SL3

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
	Turbo enabled	J3	pins 2 & 3 closed
	Turbo disabled	J3	pins 1 & 2 closed
»	CMOS memory normal operation	JP16	pins 1 & 2 closed
	CMOS memory clear	JP16	pins 2 & 3 closed
»	Monitor type select VGA/EGA/monochrome	JP17	Open
	Monitor type select CGA	JP17	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
2MB	(1) 512K x 36	NONE	NONE	NONE
4MB	(1) 512K x 36	NONE	(1) 512K x 36	NONE
4MB	(1) 1M x 36	NONE	NONE	NONE
6MB	(1) 512K x 36	NONE	(1) 1M x 36	NONE
8MB	(1) 512K x 36	(1) 1M x 36	(1) 512K x 36	NONE
8MB	(1) 1M x 36	NONE	(1) 1M x 36	NONE
8MB	(1) 2M x 36	NONE	NONE	NONE
12MB	(1) 512K x 36	(1) 1M x 36	(1) 512K x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M 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	NONE	(1) 2M x 36	NONE
16MB	(1) 4M x 36	NONE	NONE	NONE
18MB	(1) 512K x 36	NONE	(1) 4M x 36	NONE
20MB	(1) 512K x 36	(1) 4M x 36	(1) 512K x 36	NONE
20MB	(1) 1M x 36	NONE	(1) 4M x 36	NONE
24MB	(1) 512K x 36	(1) 1M x 36	(1) 512K x 36	(1) 4M x 36
24MB	(1) 1M x 36	(1) 4M x 36	(1) 1M x 36	NONE
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	NONE
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 4M x 36	NONE	(1) 4M x 36	NONE
32MB	(1) 8M x 36	NONE	NONE	NONE
36MB	(1) 512K x 36	(1) 4M x 36	(1) 512K 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	NONE	(1) 8M x 36	NONE
40MB	(1) 1M x 36	(1) 4M x 36	(1) 1M x 36	(1) 4M x 36
40MB	(1) 1M x 36	(1) 8M x 36	(1) 1M x 36	NONE
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	NONE
48MB	(1) 4M x 36	NONE	(1) 8M x 36	NONE
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 16M x 36	NONE	NONE	NONE
64MB	(1) 4M x 36	(1) 8M x 36	(1) 4M x 36	NONE
64MB	(1) 8M x 36	NONE	(1) 8M x 36	NONE
68MB	(1) 1M x 36	NONE	(1) 16M x 36	NONE
68MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	NONE

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
72MB	(1) 1M x 36	(1) 16M x 36	(1) 1M x 36	NONE
72MB	(1) 1M x 36	(1) 8M x 36	(1) 1M x 36	(1) 8M x 36
80MB	(1) 4M x 36	NONE	(1) 16M x 36	NONE
80MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	NONE
96MB	(1) 4M x 36	(1) 16M x 36	(1) 4M x 36	NONE
96MB	(1) 4M x 36	(1) 8M x 36	(1) 4M x 36	(1) 8M x 36
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	NONE
128MB	(1) 16M x 36	NONE	(1) 16M x 36	NONE
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	NONE	(1) 32K x 8
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8
256KB (B)	(4) 64K x 8	NONE	(1) 32K x 8
512KB	(4) 128K x 8	NONE	(1) 32K x 8
Note: The orientation of Banks 0 & 1 are unidentified.

CACHE JUMPER CONFIGURATION
Size	JP1	JP2	JP3	JP4	JP33
128KB	1 & 2	1 & 2	1 & 2, 3 & 4	1 & 2	2 & 3
256KB (A)	2 & 3	2 & 3	2 & 3, 4 & 5	1 & 2	2 & 3
256KB (B)	1 & 2	2 & 3	1 & 2, 3 & 4	1 & 2	1 & 2
512KB	1 & 2	2 & 3	1 & 2, 3 & 4	2 & 3	2 & 3
Note: The location of JP33 is unidentified. Pins designated should be in the closed position.

CPU TYPE CONFIGURATION
Type	JP8	JP9	JP11	JP30	JP36
80486SX	2 & 3	Open	Open	Open	1 & 3, 2 & 4
80487SX	1 & 2	Closed	2 & 3	Open	1 & 3, 2 & 4
ODP486SX	1 & 2	Closed	2 & 3	Open	1 & 3, 2 & 4
80486DX	1 & 2	Closed	3 & 4	Open	1 & 3, 2 & 4
AM486DX2	1 & 2	Closed	3 & 4	Open	3 & 5, 4 & 6
80486DX2	1 & 2	Closed	3 & 4	Open	1 & 3, 2 & 4
AM486DX4	1 & 2	Closed	3 & 4	Closed	3 & 5, 4 & 6
80486DX4	1 & 2	Closed	3 & 4	Open	3 & 5, 4 & 6
P24T	1 & 2	Closed	2 & 3	Open	1 & 3, 2 & 4
Note: The location of JP30 is unidentified. Pins designated should be in the closed position.

CPU SPEED CONFIGURATION
Speed	JP5	JP6	JP7	JP29
25MHz	Closed	Closed	Open	pins 1 & 2 closed
33MHz	Open	Closed	Closed	pins 1 & 2 closed
40MHz	Closed	Open	Open	pins 2 & 3 closed
50iMHz	Closed	Closed	Open	pins 1 & 2 closed
50MHz	Open	Open	Closed	pins 2 & 3 closed
66iMHz	Open	Closed	Closed	pins 1 & 2 closed
75iMHz	Closed	Closed	Open	pins 1 & 2 closed
100iMHz	Open	Closed	Closed	pins 2 & 3 closed