HwMuseum | Index

BEK-TRONIC TECHNOLOGY, INC.

BEK-P402

Processor

CX486S/80486SX/CX486DX/SL80486DX/LSE80486DX/80486DX/SL80486DX2/80486DX2/80486DX4/P24D/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

Award

Dimensions

255mm x 220mm

I/O Options

32-bit VESA local bus slots (3), 32-bit PCI slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Turbo LED

JP27

Power LED & keylock

J16

Turbo switch

JP28

Green PC connector (monitor)

JP3

Reset switch

S1

Speaker

JP25

32-bit PCI slots

PC1 - PC3

Green PC connector

JP26

32-bit VESA local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

JP1

N/A

»

CMOS memory normal operation

JP2

pins 2 & 3 closed

 

CMOS memory clear

JP2

pins 1 & 2 closed

»

PCI clock type select synchronous

JP4

pins 2 & 3 closed

 

PCI clock type select asynchronous

JP4

pins 1 & 2 closed

»

Factory configured - do not alter

JP9

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

NONE

NONE

1MB

NONE

(1) 256K x 36

NONE

2MB

(4) 256K x 9

(1) 256K x 36

NONE

2MB

(4) 256K x 9

NONE

(1) 256K x 36

2MB

NONE

(1) 256K x 36

(1) 256K x 36

4MB

(4) 1M x 9

NONE

NONE

4MB

NONE

(1) 1M x 36

NONE

5MB

(4) 256K x 9

(1) 1M x 36

NONE

5MB

(4) 256K x 9

NONE

(1) 1M x 36

8MB

(4) 1M x 9

(1) 1M x 36

NONE

8MB

(4) 1M x 9

NONE

(1) 1M x 36

8MB

NONE

(1) 1M x 36

(1) 1M x 36

16MB

(4) 4M x 9

NONE

NONE

16MB

NONE

(1) 4M x 36

NONE

17MB

(4) 256K x 9

(1) 4M x 36

NONE

17MB

(4) 256K x 9

NONE

(1) 4M x 36

20MB

(4) 1M x 9

(1) 4M x 36

NONE

20MB

(4) 1M x 9

NONE

(1) 4M x 36

32MB

(4) 4M x 9

(1) 4M x 36

NONE

32MB

(4) 4M x 9

NONE

(1) 4M x 36

32MB

NONE

(1) 4M x 36

(1) 4M x 36

64MB

(4) 16M x 9

NONE

NONE

64MB

NONE

(1) 16M x 36

NONE

128MB

(4) 16M x 9

(1) 16M x 36

NONE

128MB

(4) 16M x 9

NONE

(1) 16M x 36

DRAM JUMPER CONFIGURATION

Size

JP45

1MB

pins 1 & 2 closed

1MB

pins 1 & 2 closed

2MB

pins 2 & 3 closed

2MB

pins 1 & 2 closed

2MB

pins 1 & 2 closed

4MB

pins 1 & 2 closed

4MB

pins 1 & 2 closed

DRAM JUMPER CONFIGURATION (CON’T)

Size

JP45

5MB

pins 2 & 3 closed

5MB

pins 1 & 2 closed

8MB

pins 2 & 3 closed

8MB

pins 1 & 2 closed

8MB

pins 1 & 2 closed

16MB

pins 1 & 2 closed

16MB

pins 1 & 2 closed

17MB

pins 2 & 3 closed

17MB

pins 1 & 2 closed

20MB

pins 2 & 3 closed

20MB

pins 1 & 2 closed

32MB

pins 2 & 3 closed

32MB

pins 1 & 2 closed

32MB

pins 1 & 2 closed

64MB

pins 1 & 2 closed

64MB

pins 1 & 2 closed

128MB

pins 2 & 3 closed

128MB

pins 1 & 2 closed

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

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) 16K x 8 or (1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP20

JP22

JP24

64KB

pins 2 & 3 closed

Open

Open

128KB

pins 1 & 2 closed

Closed

Open

256KB

pins 2 & 3 closed

Closed

Closed

CACHE TAG JUMPER CONFIGURATION

Size

JP23

8K x 8

pins 1 & 2 closed

16K x 8

pins 2 & 3 closed

32K x 8

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP6

JP7

JP8

JP10

JP11

CX486S

Open

Open

Open

1 & 2

Open

8048SX

Open

Open

Open

Open

Open

CX486DX

1 & 2

1 & 2

Open

Open

Open

SL80486DX

Open

1 & 2

Open

Open

Open

LSE80486DX

Open

Open

Open

Open

Open

80486DX

Open

1 & 2

Open

Open

Open

SL80486DX2

Open

1 & 2

Open

Open

Open

80486DX2

Open

1 & 2

Open

Open

Open

80486DX4

Open

1 & 2

Open

Open

Open

P24D

Open

1 & 2

Closed

Open

Closed

P24T

Open

1 & 2

Open

2 & 3

Open

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

JP12

JP13

JP14

JP15

JP16

CX486S

Open

Open

1 & 2

2 & 3

1 & 2, 4 & 5

8048SX

Open

Open

1 & 2

2 & 3

1 & 2, 4 & 5

CX486DX

Open

Open

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

SL80486DX

Open

Closed

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

LSE80486DX

Open

Closed

1 & 2

2 & 3

1 & 2, 4 & 5

80486DX

Open

Open

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

SL80486DX2

Open

Closed

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

80486DX2

Open

Open

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

80486DX4

Open

Closed

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

P24D

Open

Closed

1 & 2

1 & 2, 3 & 4

1 & 2, 4 & 5

P24T

Open

Closed

2 & 3

1 & 2, 3 & 4

1 & 2, 4 & 5

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

JP17

JP21

JP36

JP37

JP38

CX486S

Open

Open

Open

Closed

Open

8048SX

Open

Open

Open

Open

Open

CX486DX

Open

Open

Open

Closed

Open

SL80486DX

Closed

Closed

Closed

Open

Open

LSE80486DX

Closed

Closed

Closed

Open

Open

80486DX

Open

Open

Open

Open

Open

SL80486DX2

Closed

Closed

Closed

Open

Open

80486DX2

Open

Open

Open

Open

Open

80486DX4

Closed

Closed

Closed

Open

Open

P24D

Closed

Closed

Closed

Open

Open

P24T

Closed

Closed

Closed

Open

Open

CPU SPEED CONFIGURATION

Speed

JP30

JP31

25MHz

Open

Open

33MHz

Closed

Closed

40MHz

Open

Closed

50iMHz

Open

Open

50MHz

Closed

Open

66iMHz

Closed

Closed

75iMHz

Open

Open

100iMHz

Closed

Closed

PCI SPEED CONFIGURATION

Speed

JP46

JP47

JP48

25MHz

Closed

Open

Open

33MHz

Closed

Closed

Closed