...because we can't all be on the bleeding edge...





MB-60 EISA486/33/50

JETPRO INFOTECH COMPANY, LTD.

MB-60 EISA486/33/50

Processor

80486DX/80486DX2

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

128MB

SRAM Cache

64/128/256

BIOS

AMI

Dimensions

330.2mm x 218.4mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Turbo LED

J4

Speaker

J2

Reset switch

J5

Turbo switch

J3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Power good signal detect from board

JP2

pins 1 & 2 closed

 

Power good signal detect from power supply

JP2

pins 2 & 3 closed

Monitor type select color

JP3

closed

 

Monitor type select monochrome

JP3

open

 

ATCLK select iOSC/1

JP6

pins 1 & 2 closed

 

ATCLK select iOSC/2

JP6

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

128MB

(4) 16M x 9

(4) 16M x 9

SRAM JUMPER CONFIGURATION

Jumper

64KB

128KB

256KB

JP7

open

open

closed

JP8

open

open

closed

JP9

open

closed

closed

JP10

open

closed

closed

JP11

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

SRAM CONFIGURATION

Size

Cache SRAM

Location

64KB

(8) 8K x 8

Banks 0 & 1

128KB

(4) 32K x 8

Bank 0

256KB

(8) 32K x 8

Banks 0 & 1

Note:The TAG memory does not need to be changed when upgrading.

CPU JUMPER CONFIGURATION

CPU

JP4

JP5

80486DX2/66

closed

open

80486DX/50

closed

closed

80486DX2/50

open

open

80486DX/40

open

closed

80486DX/33

closed

open