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





80486-EISA

MICRONICS COMPUTERS, INC.

80486-EISA

Processor

80486DX

Processor Speed

25/33MHz

Chip Set

Micronics

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

Phoenix

Dimensions

350mm x 304mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Auxiliary keyboard

J2

Reset switch

W5

External battery

J3

Turbo switch

W6

Speaker

J15

Turbo LED

W7

Power LED & keylock

J16

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Factory configured - do not alter

SW1/1

On

BIOS select onboard

SW1/2

Off

 

BIOS select external

SW1/2

On

CPU speed select 33MHz

SW1/4

Off

 

CPU speed select 25MHz

SW1/4

On

Factory configured - do not alter

SW1/5

Off

Factory configured - do not alter

SW1/6

Off

Monitor type select color

SW1/7

On

 

Monitor type select monochrome

SW1/7

Off

Factory configured - do not alter

SW2/5

Off

Video BIOS cacheing enabled

SW2/6

Off

 

Video BIOS cacheing disabled

SW2/6

On

Address range 13MB to 15MB cacheable

SW2/7

Off

 

Address range 13MB to 15MB non-cacheable

SW2/7

On

Factory configured - do not alter

SW2/8

Off

Factory configured - do not alter

W1

Off

Slot 8 standard select EISA

W100

pins 1 & 2 closed

 

Slot 8 standard select ISA

W100

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

28MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

52MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

DRAM SWITCH CONFIGURATION

Size

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

4MB

On

On

On

On

On

8MB

Off

On

On

On

On

12MB

On

Off

On

On

On

16MB

Off

Off

On

On

Off

16MB

On

On

Off

On

Off

20MB

On

On

Off

Off

Off

24MB

On

Off

On

Off

Off

28MB

Off

On

On

Off

Off

32MB

Off

On

Off

On

Off

36MB

On

Off

Off

Off

Off

40MB

Off

Off

On

Off

Off

48MB

On

Off

Off

On

Off

52MB

Off

Off

Off

Off

Off

64MB

Off

Off

Off

On

Off

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(4) 8K x 8

(4) 8K x 8

128KB

(4) 32K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

CACHE JUMPER/SWITCH CONFIGURATION

Size

SW1/3

SW1/8

W3

W4

64KB

Off

Off

pins 1 & 2 closed

pins 1 & 2 closed

128KB

On

On

pins 1 & 2 closed

pins 2 & 3 closed

256KB

On

Off

pins 2 & 3 closed

pins 2 & 3 closed