Processor

80486DX

Processor Speed

33/50MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64/256KB

BIOS

C & T

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

32-bit external memory card

S1

Power LED & keylock

J23

Reset switch

SW1

Speaker

J24

Turbo switch

SW2

Turbo LED

JP12

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select CGA

JP1

Closed

Monitor type select monochrome, EGA, or VGA

JP1

Open

»

CMOS memory normal operation

JP2

pins 2 & 3 closed

CMOS memory clear

JP2

pins 1 & 2 closed

»

Bus speed select ATCLK/4

JP3

Closed

Bus speed select ATCLK/6

JP3

Open

»

Factory configured - do not alter

JP4

N/A

»

Factory configured - do not alter

JP5

N/A

»

Factory configured - do not alter

JP6

N/A

»

Factory configured - do not alter

JP7

N/A

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) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

TAG (U33)

TAG (U34)

64KB

(8) 8K x 8

(1) 64K x 1

(1) 8K x 8

256KB

(8) 8K x 8

(1) 64K x 1

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP11

64KB

Open

Open

Open

Open

256KB

Closed

Closed

Closed

Closed