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HI-PERFORMANCE SYSTEM

PC BRAND

HI-PERFORMANCE SYSTEM

Processor

80386DX/80486SX/80486DX (depends on CPU card installed)

Processor Speed

20/33MHz

Chip Set

Unidentified

Max. Onboard DRAM

32MB

Cache

64/128/256KB (on external CPU card)

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Parallel port, serial ports (2), floppy drive interface, IDE interface, CPU expansion slot, riser slot

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

J2

External battery

J10

Serial port 1

J3

Speaker

J13

Parallel port

J4

Power LED & keylock

J23

Auxiliary speaker

J5

Riser Card

SL1

IDE interface

J8

CPU expansion slot

SL2

Floppy drive interface

J9

Reset switch

SW1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

J11

N/A

On board RAM 256KB to 640KB enabled

JP1

pins 1 & 2 open

 

On board RAM 256KB to 640KB disabled

JP1

pins 1 & 2 closed

On board RAM 512KB to 640KB enabled

JP1

pins 3 & 4 open

 

On board RAM 512KB to 640KB disabled

JP1

pins 3 & 4 closed

Security lock disabled

JP1

pins 5 & 6 closed

 

Security lock enabled

JP1

pins 5 & 6 open

Floppy drive interface enabled

JP2

pins 1 & 2 closed

 

Floppy drive interface disabled

JP2

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

20MB

(4) 1M x 9

(4) 4M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

32KB

(4) 8K x 8

NONE

(1) 8K x 8

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

32KB

pins 1 & 2 closed

pins 1 & 2 closed

64KB

pins 1 & 2 closed

pins 1 & 2 closed

128KB

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 2 & 3 closed

Note: The location of jumpers JP2 & JP3 are unidentified.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

32KB

(4) 8K x 8

NONE

(1) 8K x 8

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

32KB

pins 1 & 2 closed

pins 1 & 2 closed

64KB

pins 1 & 2 closed

pins 1 & 2 closed

128KB

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 2 & 3 closed

Note: The location of jumpers JP2 & JP3 are unidentified.

MISCELLANEOUS TECHNICAL NOTE

Note: The location of pin 1 is unidentified.