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SUPER VOYAGER VLB-III ISA
AMERICAN MEGATRENDS, INC.

SUPER VOYAGER VLB-III ISA

Processor	80486SX/80487SX/80486DX/80486DX2/80486DX4/Pentium Overdrive
Processor Speed	25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Chip Set	AMI
Max. Onboard DRAM	128MB
Cache	64/256KB
BIOS	AMI
Dimensions	330mm x 218mm
I/O Options	32-bit VESA local bus slots (2), floppy drive interface, green PC connector, IDE interface, parallel port, PS/2 mouse interface, serial ports (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
PS/2 mouse interface	J1	Speaker	J27
IDE interface LED	J2	Power LED & keylock	J31
Green PC connector (power)	J3	Reset switch	J32
Parallel port	J5	Turbo switch	J33
Floppy drive interface	J8	Password LED	J38
IDE interface	J9	Turbo LED	J40
External battery	J10	Green PC connector (monitor)	J47
Serial port 1	J13	32-bit VESA local bus slots	SL1 & SL2
Serial port 2	J14
Note: The locations of J2 & J3 are unidentified.

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
�	Factory configured - do not alter	J11	Open
�	Factory configured - do not alter	J12	Open
�	Factory configured - do not alter	J18	Open
�	Factory configured - do not alter	J15	Open
�	Parallel port IRQ select IRQ7	J22	pins 1 & 2 closed
	Parallel port IRQ select IRQ5	J22	pins 2 & 3 closed
�	Factory configured - do not alter	J26	Open
�	Serial port 2 IRQ select IRQ3	J28	pins 1 & 2 closed
	Serial port 2 IRQ select IRQ4	J28	pins 2 & 3 closed
�	Serial port 1 IRQ select IRQ4	J29	pins 1 & 2 closed
	Serial port 1 IRQ select IRQ3	J29	pins 2 & 3 closed
�	On board mouse enabled	J30	pins 1 & 2 closed
	On board mouse disabled	J30	pins 2 & 3 closed
�	Password LED is used on front panel	J39	pins 1 & 2 closed
	Password LED using J38	J39	pins 2 & 3 closed
�	CPU type select PGA	J42	pins 1 & 2 closed
	CPU type select PQFP	J42	pins 2 & 3 closed
�	CMOS memory normal operation	J48	pins 1 & 2 closed
	CMOS memory clear	J48	pins 2 & 3 closed
�	BIOS type select 27256	J51	pins 1 & 2 closed
	BIOS type select 27512	J51	pins 2 & 3 closed
Note: The locations of J26 & J39 are unidentified.

CPU TYPE CONFIGURATION
Type	J19	J37	J43	J54
80486SX	1 & 2, 3 & 4	Open	Open	N/A
80487SX	1 & 2, 3 & 4	Open	Open	2 & 3
80486DX/DX2	1 & 2, 3 & 4	Open	Open	1 & 2
80486DX4 (2x)	2 & 3	1 & 2	Open	1 & 2
80486DX4 (2.5x)	2 & 3	2 & 3	Open	1 & 2
80486DX4 (3x)	2 & 3	Open	Open	1 & 2
P23T	1 & 2, 3 & 4	Open	Open	2 & 3
P4S, P23S, P24S	2 & 3	Open	Open	1 & 2
P24CT	3 & 4	Open	Closed	2 & 3
P24D	3 & 4	Open	Closed	1 & 2
Pentium Overdrive	3 & 4	Open	Closed	2 & 3
Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON'T)
Type	J55	J56	J57
80486SX	2 & 3	Open	1 & 2, 3 & 4, 5 & 6
80487SX	1 & 2, 3 & 4	Open	1 & 2, 3 & 4, 5 & 6
80486DX/DX2	1 & 2, 3 & 4	Open	1 & 2, 3 & 4, 5 & 6
80486DX4 (2x)	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open
80486DX4 (2.5x)	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open
80486DX4 (3x)	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open
P23T	1 & 2, 3 & 4	Open	1 & 2, 3 & 4, 5 & 6
P4S, P23S, P24S	1 & 2, 3 & 4	Open	1 & 2, 3 & 4, 5 & 6
P24CT	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	Open
P24D	1 & 2, 3 & 4	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6
Pentium Overdrive	1 & 2, 3 & 4	Open	1 & 2, 3 & 4, 5 & 6
Note: Pins designated should be in the closed position.

VESA SPEED (ID2 & ID3) CONFIGURATION
Speed	J16 (ID3)	J17 (iD2)
25MHz	pins 1 & 2 closed	pins 1 & 2 closed
33MHz	pins 1 & 2 closed	pins 1 & 2 closed
40MHz	pins 2 & 3 closed	pins 2 & 3 closed
50iMHz	pins 1 & 2 closed	pins 1 & 2 closed
50MHz	pins 2 & 3 closed	pins 2 & 3 closed
66iMHz	pins 1 & 2 closed	pins 1 & 2 closed
75iMHz	pins 1 & 2 closed	pins 1 & 2 closed
100iMHz	pins 2 & 3 closed	pins 2 & 3 closed