486-33/25/20E Motherboard Settings and Configuration

Processor	80486SX/80487SX/80486DX/80486DX2/P24T
Processor Speed	20/25/33/50(internal)/66(internal)MHz
Chip Set	OPTI
Video Chip Set	None
Maximum Onboard Memory	32MB
Maximum Video Memory	None
Cache	None
BIOS	AMI/Award
Dimensions	254mm x 218mm
I/O Options	None
NPU Options	4167

CONNECTIONS
Purpose	Location	Purpose	Location
External battery	J1	Turbo switch	J5
Reset switch	J2	Speaker	J6
Turbo LED	J3	Power LED & keylock	J7

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Turbo enabled (selectable with turbo switch on case)	X4	Pins 1 & 2 closed
	Turbo enabled (selectable through keyboard CTRL, ALT +/-	X4	Pins 2 & 3 closed
	Turbo enabled (continuous turbo mode)	X4	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
5MB	(4) 256K x 9	(4) 1M x 9
8MB	(4) 1M x 9	(4) 1M x 9
16MB	(4) 4M x 9	None
32MB	(4) 4M x 9	(4) 4M x 9

CPU TYPE SELECTION
Type	W1	W2	W3	W4	W5
80486SX	Open	Open	Open	Closed	Open
80487SX	Open	Closed	Closed	Open	Closed
80486DX	Closed	Open	Closed	Open	Closed
80486DX2	Closed	Open	Closed	Open	Closed
P24T	Open	Closed	Closed	Open	Closed