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PT-428

PINE TECHNOLOGY

PT-428

Processor

80486SX/80486DX/80486DX2

Processor Speed

25/33/40/50(internal)/50/66(internal)MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

250mm x 220mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Speaker

J5

Reset switch

J2

Power LED & keylock

J6

Turbo switch

J3

32-bit VESA Local bus slots

SL1,SL2 & SL3

Turbo LED

J4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Battery type select - internal

JP1

Closed

 

Battery type select - internal

JP1

Open

Power good signal detect from power supply

JP2

pins 1 & 2 closed

 

Power good signal detect from board

JP2

pins 2 & 3 closed

VGA card select - normal

JP3

pins 1 & 2 closed

 

VGA card select - POWER 9000

JP3

pins 2 & 3 closed

CPU test logic enabled

JP6

Open

 

CPU test logic disabled

JP6

Closed

(MCA1) LDEV# direct connect to 491 ELBA#

JP7

pins 1 & 2 closed

 

LDEV# through and gate to 491 ELBA#

JP7

pins 2 & 3 closed

CPU speed select < 33MHz

JP11

Open

 

CPU speed select > 33MHz

JP11

Closed

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) 1M x 9

(4) 256K 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

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

JP12

JP13

JP14

JP15

JP16

32MB

Open

2 & 3

Open

Open

Open

64KB

Open

1 & 2

Open

Closed

Open

128KB

2 & 3

2 & 3

Open

Closed

Closed

256KB

1 & 2

1 & 2

Closed

Closed

Closed

Note: pins designated should be in the closed position.

CPU TYPE CONFIGURATION

CPU Type

J17

J18

80486SX

pins 2 & 3 closed

Open

80486DX/DX2

pins 1, 2, 3 & 4 closed

pins 1 & 2 closed

Pentium Overdrive

pins 1, 2, 3 & 4 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION (CHRONTEL CH9007C CLOCK)

Speed

JP8

JP9

25MHz

pins 1 & 2 closed

pins 1 & 2 closed

33MHz

pins 2 & 3 closed

pins 1 & 2 closed

40MHz

pins 1 & 2 closed

pins 2 & 3 closed

50iMHz

pins 1 & 2 closed

pins 1 & 2 closed

50MHz

pins 2 & 3 closed

pins 2 & 3 closed

66iMHz

pins 2 & 3 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION (PHASE LINE PLL52C05)

Speed

JP8

JP9

JP21

25MHz

pins 1 & 2 closed

pins 1 & 2 closed

Closed

33MHz

pins 2 & 3 closed

pins 1 & 2 closed

Closed

40MHz

pins 1 & 2 closed

pins 2 & 3 closed

Open

50iMHz

pins 1 & 2 closed

pins 1 & 2 closed

Closed

50MHz

pins 2 & 3 closed

pins 2 & 3 closed

Open

66iMHz

pins 2 & 3 closed

pins 1 & 2 closed

Closed

VESA ID4 CONFIGURATION

50MHz delay

JP4

JP5

No delay

pins 1 & 2 closed

pins 1 & 2 closed

1 - T

pins 2 & 3 closed

pins 2 & 3 closed