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486-25

OMNITEL, INC.

486-25

Processor

80486DX

Processor Speed

25MHz

Chip Set

OPTI

Max. Onboard DRAM

16MB

Cache

64/128KB

BIOS

Omnitel

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Power LED & keylock

J26

Turbo LED

J11/pins 1 & 2

Reset switch

J31

Speaker

J25

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Password enabled

J43

Closed

 

Password disabled

J43

Open

External cache enabled

J50

Open

 

External cache disabled

J50

Closed

POST enabled

J51

Closed

 

POST disabled

J51

Open

Battery select internal

J52

pins 1 & 2 closed

 

Battery select external

J52

pins 2 & 3 closed

BIOS type select 27256

J60

pins 2 & 3 closed

 

BIOS type select 27512

J60

pins 1 & 2 closed

Note:The location of jumpers J50 & J51 are unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1 M x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

7MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

13MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(8) 8K x 8

NONE

128KB

(8) 8K x 8

(8) 8K x 8

CACHE JUMPER CONFIGURATION

Size

J44

J45

J46

J47

J48

64KB

Open

Open

1 & 2

1 & 2

1 & 2

128KB

Closed

Closed

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.