BEK-TRONIK TECHNOLOGY, INC.

BEK-V419

Processor

80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

32/64/128/256KB

BIOS

AMI/Award

Dimensions

330mm x 218mm

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 - SL3

Turbo LED

J4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JP1

Closed

 

Battery type select external

JP1

Open

»

VESA card type select any card installed

JP3

pins 1 & 2 closed

 

VESA card type select Weitek 9000 only

JP3

pins 2 & 3 closed

»

ADS delay select no delays

JP6

pins 1 & 2 closed

 

ADS delay select 1 delay for 50MHz

JP6

pins 2 & 3 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) 1M x 9

(4) 1M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

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

JP13

JP14

JP15

JP16

JP17

32KB

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

Type

JP18

JP19

80486SX

pins 2 & 3 closed

Open

80487SX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

80486DX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX2

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP9

JP10

JP11

25MHz

Open

Open

Closed

33MHz

Closed

Open

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Open

Closed

50MHz

Closed

Open

Open

66iMHz

Closed

Open

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JP20

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP12

<= 33MHz

Open

> 33MHz

Closed