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ADVANTAGE! PLUS SERIES 486 (MYLEX) (202529-000, 006)

AST RESEARCH, INC.

ADVANTAGE! PLUS SERIES 486 (MYLEX) (202529-000, 006)

Processor

80486SX/80487SX/ODP486/ODPR486/80486DX/80486DX2

Processor Speed

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

Chip Set

Unidentified

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

Parallel port

J1

Turbo LED

JP3

Serial port 2

J2

Reset switch

JP4

Serial port 1

J3

Speaker

JP5

Floppy drive interface

J4

IDE interface LED

JP6

IDE interface

J5

External battery

JP22

Power LED & keylock

JP2

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP1

Closed

 

Monitor type select monochrome

JP1

Open

Factory configured - do not alter

JP18

Open

Parallel port IRQ select IRQ7

JP19

Pins 2 & 3 closed

 

Parallel port IRQ select IRQ5

JP19

Pins 1 & 2 closed

On board I/O enabled

JP20

Pins 1 & 2 closed

 

On board I/O disabled

JP20

Pins 2 & 3 closed

Battery type select internal

JP21

Pins 2 & 3 closed

 

Battery type select external

JP21

Open

 

CMOS memory clear

JP21

Pins 1 & 2 closed

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) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG0

TAG1

64KB

(8) 8K x 8

(1) 64K x 1

(1) 8K x 8

256KB

(8) 32K x 8

(1) 64K x 1

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP7

JP11

JP12

JP13

None

Open

Open

Open

Open

64KB

Open

Open

Open

Open

256KB

Closed

Closed

Open

Closed

CPU TYPE CONFIGURATION

Type

JP8

JP9

JP10

80486SX

Open

Pins 2 & 3 closed

Open

80487SX

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

odp486

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

odpR486

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

80486DX

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

80486DX2

Pins 1 & 2 closed

Pins 1 & 2 closed

Closed

CPU SPEED CONFIGURATION

Speed

JP14

JP15

JP16

JP17

25MHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

33MHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

50iMHz

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

66iMHz

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed