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EXP8851

DATAEXPERT CORPORATION

EXP8851

Device Type

Mainboard

Processor

CX 6X86/AM K5/Pentium

Processor Speed

75/90/100/120/133/150/166/200MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

290mm x 220mm

I/O Options

32-bit PCI slots (4), green PC connector, VRM connector

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Turbo LED

J4

Serial port 1

CN2

Parallel port

J5

Floppy drive interface

CN3

Green PC connector

JP19

IDE interface 2

CN4

IDE interface LED

JP20

IDE interface 1

CN5

CPU fan power

JP30

Power LED & keylock

J1

32-bit PCI slots

PC1 – PC4

Speaker

J2

VRM connector

VRM

Reset switch

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Cache type select write back

JP10

Open

 

Cache type select write through

JP10

Closed

»

CPU pipeline enabled

JP11

Closed

 

CPU pipeline disabled

JP11

Open

»

AT bus CLK select PCICLK/4

JP15

Pins 2 & 3 closed

 

AT bus CLK select PCICLK/3

JP15

Pins 1 & 2 closed

»

CMOS memory normal operation

JP18

Open

 

CMOS memory clear

JP18

Closed

»

Parallel port mode select standard

JP23

Closed

 

Parallel port mode select EPP

JP23

Open

SIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB (A)

(2) 32K x 32

None

None

256KB (B)

None

(8) 32K x 8

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

512KB

None

(8) 64K x 8

(1) 16K/32K x 8

CACHE JUMPER CONFIGURATION

Size

JP12

JP13

JP14

256KB (B)

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

512KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP5

JP16

JP17

JP31

120MHz

50MHz

2x

Closed

Open

Open

Open

150MHz

60MHz

2x

Closed

Open

Closed

Open

166MHz

66MHz

2x

Closed

Closed

Closed

Open

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP5

JP16

JP17

JP31

75MHz

50MHz

1.5x

Open

Open

Open

Open

90MHz

60MHz

1.5x

Open

Open

Closed

Open

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP5

JP16

JP17

JP31

75MHz

50MHz

1.5x

Open

Open

Open

Open

90MHz

60MHz

1.5x

Open

Open

Closed

Open

100MHz

66MHz

1.5x

Open

Closed

Closed

Open

120MHz

60MHz

2x

Closed

Open

Closed

Open

133MHz

66MHz

2x

Closed

Closed

Closed

Open

150MHz

60MHz

2.5x

Closed

Open

Closed

Closed

166MHz

66MHz

2.5x

Closed

Closed

Closed

Closed

200MHz

66MHz

3x

Open

Closed

Closed

Closed

DMA CHANNEL SELECTION

Channel

JP27

JP28

1

Pins 2 & 3 closed

Pins 2 & 3 closed

3

Pins 1 & 2 closed

Pins 1 & 2 closed

BIOS SELECTION

Setting

JP8

JP9

»

5v flash

Pins 2 & 3 closed

Pins 1 & 2 closed

 

12v flash

Pins 2 & 3 closed

Pins 2 & 3 closed

 

EPROM

Pins 1 & 2 closed

Pins 1 & 2 closed

IDE SELECTION

Setting

JP21

JP22

»

Normal operation

Pins 2 & 3 closed

Pins 2 & 3 closed

 

Feature function

Pins 1 & 2 closed

Pins 1 & 2 closed