AMERICAN MEGATRENDS, INC.

SERIES 50 SUPER VOYAGER

Processor

80486SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50/50(internal)/66(internal)MHz

Chip Set

AMI

Max. Onboard DRAM

32MB

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface,parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Serial port 1

P1

Speaker

J15

Serial port 2

P4

Turbo LED

J16

Parallel port

P5

Power LED & keylock

J18

Floppy drive interface

P6

Turbo switch

J21

IDE interface

P7

Reset switch

J22

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

CPU select type 80486DX or 80486DX2

J12

1 & 2,3 & 4 closed

 

CPU select type 80486SX

J12

pins 2 & 3 closed

»

Serial port 1 interrupt select IRQ3

J13

pins 1 & 2 closed

 

Serial port 1 interrupt select IRQ4

J13

pins 2 & 3 closed

»

Serial port 2 interrupt select IRQ3

J14

pins 2 & 3 closed

 

Serial port 2 interrupt select IRQ4

J14

pins 1 & 2 closed

»

Power good signal detect from power supply

J23

pins 2 & 3 closed

 

Power good signal detect from board

J23

pins 1 & 2 closed

»

Parallel port select interrupt IRQ7

J24

pins 2 & 3 closed

 

Parallel port select interrupt IRQ5

J24

pins 1 & 2 closed

»

CMOS memory normal operation

J33

pins 1 & 2 closed

 

CMOS memory clear

J33

pins 2 & 3 closed

»

Monitor type select monochrome

SW2/1

Off

 

Monitor type select color

SW2/1

On

»

Manufacturing diagnostics

SW2/2

Off

Note:SW2/switch 2 is factory configured - do not alter

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

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(3) 16K x 4

256KB

(8) 32 K x 8

(3) 16K x 4

CACHE SWITCH CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

SW1/4

64KB

Off

Off

Off

Off

256KB

On

On

On

On

CPU SPEED CONFIGURATION

Size

J17

20MHz

pins 2 & 3 closed

25MHz

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

50iMHz

pins 1 & 2 closed

50MHz

pins 1 & 2 closed

66iMHz

pins 1 & 2 closed