Processor	80486SX/80487SX/80486DX/80486DX2
Processor Speed	33/50(internal)/50MHz
Chip Set	Symphony
Max. Onboard DRAM	64MB
SRAM Cache	64/128/256K
BIOS	AMI/Award
Dimensions	330mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Reset switch	J4
Turbo LED	J2	Speaker	J5
Turbo switch	J3	Power LED & keylock	J6

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	CPU type select 80486DX2, 80486DX, or 80487SX	J8	pins 2 & 3 closed
	CPU tpye select 80486SX	J8	pins 1 & 2 closed
»	Monitor type select color	J10	closed
	Monitor type select monochrome	J10	open

CPU SPEED CONFIGURATION
CPU Speed	J7	J9A	J9B	J9C
33MHz	pins 1 & 2 closed	open	closed	open
50 (internal) MHz	pins 1 & 2 closed	open	closed	open
50MHz	pins 2 & 3 closed	closed	open	closed

SRAM JUMPER CONFIGURATION
Size	JS1G	JS1F	JS1E	JS1D	JS1C	JS1B	JS1A
64KB	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2	pins 1 & 2
128KB	pins 1 & 2	pins 1 & 2	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3
256KB	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 2 & 3	pins 1 & 2	pins 1 & 2	pins 1 & 2
Note: Pins designated should be in the closed position.

SRAM CONFIGURATION
Size	Cache	Location	TAG
64KB	(8) 8K x 8	Banks 0 & 1	(1) 8K x 8
128KB	(4) 32K x 8	Bank 0	(1) 32K x 8
256KB	(8) 32K x 8	Banks 0 & 1	(1) 32K x 8

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
2MB	(4) 512K x 9	NONE	NONE	NONE
4MB	(4) 256K x 9	(4) 256K x 9	(4) 512K x 9	NONE
4MB	(4) 512K x 9	(4) 512K x 9	NONE	NONE
4MB	(4) 1M x 9	NONE	NONE	NONE
6MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	NONE
6MB	(4) 512K x 9	(4) 1M x 9	NONE	NONE
8MB	(4) 256K x 9	(4) 256K x 9	(4) 512K x 9	(4) 1M x 9
8MB	(4) 512K x 9	(4) 512K x 9	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9	NONE	NONE
8MB	(4) 2M x 9	NONE	NONE	NONE
10MB	(4) 256K x 9	(4) 256K x 9	(4) 1M x 9	(4) 1M x 9
12MB	(4) 512K x 9	(4) 512K x 9	(4) 1M x 9	(4) 1M 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
16MB	(4) 2M x 9	(4) 2M x 9	NONE	NONE
16MB	(4) 4M x 9	NONE	NONE	NONE
18MB	(4) 256K x 9	(4) 256K x 9	(4) 4M x 9	NONE
18MB	(4) 512K x 9	(4) 4M x 9	NONE	NONE
20MB	(4) 512K x 9	(4) 512K x 9	(4) 4M x 9	NONE
20MB	(4) 1M x 9	(4) 4M x 9	NONE	NONE
24MB	(4) 512K x 9	(4) 512K x 9	(4) 1M x 9	(4) 4M x 9
24MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	NONE
24MB	(4) 2M x 9	(4) 2M x 9	(4) 2M x 9	NONE
32MB	(4) 2M x 9	(4) 2M x 9	(4) 2M x 9	(4) 2M x 9
32MB	(4) 4M x 9	(4) 4M x 9	NONE	NONE
36MB	(4) 512K x 9	(4) 512K x 9	(4) 4M x 9	(4) 4M x 9
36MB	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9	NONE
40MB	(4) 1M x 9	(4) 1M x 9	(4) 4M x 9	(4) 4M x 9
48MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	NONE
64MB	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9	(4) 4M x 9