Processor	80486DX
Processor Speed	25/33MHz
Chip Set	VLSI
Max. Onboard DRAM	16MB (8MB on external memory card)
Cache	64/256KB
BIOS	AMI/DTK
Dimensions	351mm x 296mm
I/O Options	32-bit external memory card slot
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
Secondary fan power	J1	Reset switch	J4
Power LED & keylock	J2	Speaker	J5
Turbo LED	J3	32-bit external memory card	S1

USER CONFIGURABLE SETTINGS
Function		Jumper/Switch	Position
»	CPU speed select fast	J6	Open
	CPU speed select slow	J6	pins 1 & 2 closed
	CPU speed switchable from keyboard	J6	pins 2 & 3 closed
»	Monitor type select monochrome	SW1/4	Off
	Monitor type select color	SW1/4	On
»	BIOS type select 27256	W3	pins 1 & 2 closed
	BIOS type select 27512	W3	pins 2 & 3 closed
»	Video BIOS shadowing enabled	W6	Closed
	Video BIOS shadowing disabled	W6	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1
1MB	(4) 256K x 9	NONE
2MB	(4) 256K x 9	(4) 256K x 9
4MB	(4) 1M x 9	NONE
8MB	(4) 1M x 9	(4) 1M x 9

DRAM JUMPER CONFIGURATION
Size	W4	W5
1MB	pins 2 & 3 closed	pins 2 & 3 closed
2MB	pins 2 & 3 closed	pins 2 & 3 closed
4MB	pins 1 & 2 closed	pins 1 & 2 closed
8MB	pins 1 & 2 closed	pins 1 & 2 closed

DRAM SWITCH CONFIGURATION
Size	SW1/1	SW1/2	SW1/3
1MB	On	On	On
2MB	On	On	On
4MB	On	On	Off
8MB	On	Off	Off

CACHE CONFIGURATION
Size	Bank 0	Tag	Dirty Bit
64KB	(8) 16K x 4	(2) 16K x 4	(1) 16K x 1
256KB	(8) 64K x 4	(2) 64K x 4	(1) 64K x 1

CACHE JUMPER CONFIGURATION
Size	W1	W2
64KB	pins 1 & 2 closed	pins 1 & 2 closed
256KB	pins 2 & 3 closed	pins 2 & 3 closed