Processor	80486SX/SL80486SX/80487SX/AM486DX/80486DX/SL80486DX/AM486DX2/80486DX2/SL80486DX2
Processor Speed	25/33/40/50(internal)/50/66(internal)MHz
Chip Set	SIS
Video Chip Set	None
Maximum Onboard Memory	96MB
Maximum Video Memory	None
Cache	128/256/512KB
BIOS	AMI/Phoenix
Dimensions	260mm x 221mm
I/O Options	32-bit VESA local bus slots (3), green PC connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Auxiliary keyboard connector	CN1	Reset switch	JFP Pins 19 & 20
External battery	JB	Green PC connector (monitor)	JG1
Power LED & keylock	JFP Pins 1 - 5	Green PC LED	JG2
Speaker	JFP Pins 7 - 10	Green PC connector	JG3
Turbo LED	JFP Pins 12 & 13	32-bit VESA local bus slots	SL1 - SL3
Turbo switch	JFP Pins 15 - 17

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Battery type select internal	JB	Pins 2 & 3 closed
	Battery type select external	JB	Closed
»	CPU type select PQFP CPU installed	JC1	Open
	CPU type select PGA CPU installed	JC1	Closed
»	Factory configured - do not alter	JC5	Unidentified
»	Factory configured - do not alter	JC6	Unidentified
»	Factory configured - do not alter	JC7	Unidentified
»	Factory configured - do not alter	JC9	Unidentified
»	Factory configured - do not alter	JC10	Unidentified
»	Monitor type select monochrome	JP1	Open
	Monitor type select color	JP1	Closed
»	VESA, VGA, or I/O card normal operation	JP16	Pins 2 & 3 closed
	VESA, VGA, or I/O card causes system to lock, use this setting	JP16	Pins 1 & 2 closed
»	VESA local bus card select any card installed	JP23	Open
	VESA local bus card select special cards only	JP23	Closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
1MB (A)	None	(1) 256K x 36	None
1MB (B)	(4) 256K x 9	None	None
2MB (A)	None	(1) 256K x 36	(1) 256K x 36
2MB (B)	None	(1) 512K x 36	None
2MB (C)	(4) 256K x 9	(1) 256K x 36	None
4MB (A)	None	(1) 512K x 36	(1) 512K x 36
4MB (B)	None	(1) 1M x 36	None
4MB (C)	(4) 1M x 9	None	None
5MB (A)	None	(1) 256K x 36	(1) 1M x 36
5MB (B)	(4) 1M x 9	(1) 256K x 36	None
6MB (A)	None	(1) 512K x 36	(1) 1M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
6MB (B)	(4) 1M x 9	(1) 512K x 36	None
6MB (C)	(4) 1M x 9	(1) 256K x 36	(1) 256K x 36
8MB (A)	None	(1) 1M x 36	(1) 1M x 36
8MB (B)	None	(1) 2M x 36	None
8MB (C)	(4) 1M x 9	(1) 1M x 36	None
8MB (D)	(4) 1M x 9	(1) 512K x 36	(1) 512K x 36
12MB	(4) 1M x 9	(1) 1M x 36	(1) 1M x 36
16MB (A)	None	(1) 2M x 36	(1) 2M x 36
16MB (B)	None	(1) 4M x 36	None
16MB (C)	(4) 4M x 9	None	None
17MB (A)	None	(1) 256K x 36	(1) 4M x 36
17MB (B)	(4) 4M x 9	(1) 256K x 36	None
18MB (A)	None	(1) 512K x 36	(1) 4M x 36
18MB (B)	(4) 4M x 9	(1) 512K x 36	None
18MB (C)	(4) 4M x 9	(1) 256K x 36	(1) 256K x 36
20MB (A)	None	(1) 1M x 36	(1) 4M x 36
20MB (B)	(4) 4M x 9	(1) 1M x 36	None
20MB (C)	(4) 4M x 9	(1) 512K x 36	(1) 512K x 36
24MB (D)	(4) 4M x 9	(1) 1M x 36	(1) 1M x 36
32MB (A)	None	(1) 4M x 36	(1) 4M x 36
32MB (B)	None	(1) 8M x 36	None
32MB (C)	(4) 4M x 9	(1) 4M x 36	None
36MB (A)	None	(1) 1M x 36	(1) 8M x 36
36MB (B)	(4) 1M x 9	None	(1) 8M x 36
36MB (C)	(4) 4M x 9	(1) 1M x 36	(1) 4M x 36
48MB (A)	None	(1) 4M x 36	(1) 8M x 36
48MB (B)	(4) 4M x 9	None	(1) 8M x 36
48MB (C)	(4) 4M x 9	(1) 4M x 36	(1) 4M x 36
64MB (A)	None	(1) 8M x 36	(1) 8M x 36
64MB (B)	(4) 16M x 9	None	None
65MB	(4) 16M x 9	(1) 256K x 36	None
68MB	(4) 16M x 9	(1) 1M x 36	None
72MB	(4) 16M x 9	(1) 1M x 36	(1) 1M x 36
80MB	(4) 16M x 9	(1) 4M x 36	None
96MB	(4) 16M x 9	(1) 4M x 36	(1) 4M x 36

DRAM JUMPER CONFIGURATION
Size	JM1
1MB (A)	Open
1MB (B)	Pins 1 & 2 closed
2MB (A)	Open
2MB (B)	Open
2MB (C)	Pins 2 & 3 or 3 & 4 closed
4MB (A)	Open
4MB (B)	Open
4MB (C)	Pins 1 & 2 closed
5MB (A)	Open
5MB (B)	Pins 2 & 3 or 3 & 4 closed
6MB (A)	Open
6MB (B)	Pins 2 & 3 or 3 & 4 closed
6MB (C)	Pins 4 & 5 closed
8MB (A)	Open
8MB (B)	Open
8MB (C)	Pins 2 & 3 or 3 & 4 closed
8MB (D)	Pins 4 & 5 closed
12MB	Pins 4 & 5 closed
16MB (A)	Open
16MB (B)	Open
16MB (C)	Pins 1 & 2 closed
17MB (A)	Open
17MB (B)	Pins 2 & 3 or 3 & 4 closed
18MB (A)	Open
18MB (B)	Pins 2 & 3 or 3 & 4 closed
18MB (C)	Pins 4 & 5 closed
20MB (A)	Open
20MB (B)	Pins 2 & 3 or 3 & 4 closed
20MB (C)	Pins 4 & 5 closed
24MB (D)	Pins 4 & 5 closed
32MB (A)	Open
32MB (B)	Open
32MB (C)	Pins 2 & 3 or 3 & 4 closed
36MB (A)	Open
36MB (B)	Pins 1 & 2 closed
36MB (C)	Pins 4 & 5 closed
48MB (A)	Open
48MB (B)	Pins 1 & 2 closed

DRAM JUMPER CONFIGURATION (CON’T)
Size	JM1
48MB (C)	Pins 4 & 5 closed
64MB (A)	Open
64MB (B)	Pins 1 & 2 closed
65MB	Pins 2 & 3 or 3 & 4 closed
68MB	Pins 2 & 3 or 3 & 4 closed
72MB	Pins 4 & 5 closed
80MB	Pins 2 & 3 or 3 & 4 closed
96MB	Pins 4 & 5 closed

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG
128KB	(4) 32K x 8	None	(1) 8K, (1) 16K or (1) 32K x 8
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 16K or (1) 32K x 8
256KB (B)	(4) 64K x 8	None	(1) 16K or (1) 32K x 8
512KB	(4) 128K x 8	None	(1) 32K x 8

CACHE JUMPER CONFIGURATION
Size	JS1	JS2	JS3
128KB	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB (A)	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
256KB (B)	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
512KB	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed

CPU SPEED SELECTION
Speed	JK1	JK5
25MHz	Open	pins 2 & 3 closed
33MHz	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed
40MHz	pins 3 & 4 closed	pins 2 & 3 closed
50iMHz	Open	pins 2 & 3 closed
50MHz	pins 1 & 2, 5 & 6 closed	pins 1 & 2 closed
66iMHz	pins 1 & 2, 3 & 4 closed	pins 2 & 3 closed

CPU TYPE SELECTION
Type	JC2	JC3	JC4	JC8
80486SX	Open	2 & 3	Open	Open
SL80486SX	1 & 2, 3 & 4	2 & 3	1 & 2	Open
80487SX	Open	1 & 2, 3 & 4	Open	1 & 2
AM486DX	Open	1 & 2, 3 & 4	Open	2 & 3
80486DX	Open	1 & 2, 3 & 4	Open	2 & 3
SL80486DX	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2	2 & 3
AM486DX2	Open	1 & 2, 3 & 4	Open	2 & 3
80486DX2	Open	1 & 2, 3 & 4	Open	2 & 3
SL80486DX2	1 & 2, 3 & 4	1 & 2, 3 & 4	1 & 2	2 & 3
Note: Pins designated should be in the closed position.

VL BUS WAIT STATE SELECTION
Setting		JP8
	0 wait states	Open
»	1 wait state	Closed

VL BUS SPEED SELECTION
Speed	JP9
<= 33MHz	Open
> 33MHz	Closed