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





HED-981, HED-984

HEDAKA

HED-981, HED-984

Processor

80286

Processor Speed

12MHz

Chip Set

VLSI

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI/Award

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

JP1

Turbo switch

JP4

Power LED & keylock

JP2

Turbo LED

JP5

Speaker

JP3

External battery

JP17

USER CONFIGURABLE SETTINGS

Function

Jumper

Location

Factory configured - do not alter

JP0

N/A

 

Memory speed select 100ns

JP6

pins 1 & 2 closed

DRAM select 0 wait states

JP10

Closed

 

DRAM select 1 wait state

JP10

Open

BIOS type select 27256

JP11

pins 1 & 2 closed

 

BIOS type select 27128

JP11

pins 2 & 3 closed

Monitor type select color

JP12

pins 1 & 2 closed

 

Monitor type select monochrome

JP12

pins 2 & 3 closed

Factory configured - do not alter

JP13

N/A

Factory configured - do not alter

JP14

N/A

Factory configured - do not alter

JP15

N/A

Factory configured - do not alter

JP18

N/A

Battery select internal

JPA

pins 1 & 2 closed

 

Battery select external

JPA

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

P-0

P-1

512KB

(16) 41256

NONE

NONE

NONE

(2) 41256

NONE

512KB

NONE

NONE

(4) 44256

NONE

(2) 41256

NONE

640KB

NONE

(16) 4164

(4) 44256

NONE

(2) 41256

(2) 4164

1MB

(16) 41256

(16) 41256

NONE

NONE

(2) 41256

NONE

1MB

NONE

NONE

(4) 44256

(4) 44256

(2) 41256

NONE

2MB

(16) 411000

NONE

NONE

NONE

(2) 411000

NONE

4MB

(16) 411000

(16) 411000

NONE

NONE

(2) 411000

(2) 411000

DRAM JUMPER CONFIGURATION

Size

JP7

JP8

JP9

512KB

Closed

Closed

Closed

640KB

Closed

Closed

Open

1MB

Closed

Open

Closed

2MB

Closed

Open

Open

4MB

Open

Closed

Closed