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





Z-248/12

ZENITH DATA SYSTEMS

Z-248/12

Processor

80286

Processor Speed

12MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

6MB

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

80287

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J101

Unidentified

NPU clock mode select /3

J103

Closed

 

NPU clock mode select direct

J103

Open

Factory configured - do not alter

J106

Unidentified

Factory configured - do not alter

J113

Pins 1 & 2 closed

Speaker enabled

J114

Closed

 

Speaker disabled

J114

Open

Chip at U-169 is Poach 7

J115

Pins 1 & 2 closed

 

Chip at U-169 is Poach 1

J115

Pins 2 & 3 closed

Factory configured - do not alter

J116

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(2) 256K x 9

(2) 256K x 9

None

3MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

DRAM JUMPER CONFIGURATION

Size

J102

1MB

Pins 2 & 3 closed

3MB

Pins 2 & 3 closed

6MB

Pins 1 & 2 closed

NPU SPEED SELECTION

Speed

Type

P113

6MHz

80287

Pins 13 & 14 closed

8MHz

80C87

Pins 13 & 14 closed

8MHz

80287

Pins 7 & 8 closed

12MHz

80C87

Pins 7 & 8 closed