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AIO8554

DATAEXPERT CORPORATION

AIO8554

Device Type

Mainboard

Processor

Pentium

Processor Speed

75/90/100/120/133MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

128MB

Maximum Video Memory

2MB

Cache

256/512KB

BIOS

AMI

Dimensions

330mm x 210mm

I/O Options

Floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot, wavetable connector, audio in CD-ROMs (3), MIDI connector

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J1

Audio in CD-ROM (Panasonic)

J14

Serial port 2

J2

Audio in CD-ROM (Sony)

J15

Parallel port

J3

Audio in CD-ROM(Mitsumi)

J16

VGA port

J4

Reset switch

J17

External battery

J6

Turbo LED

J18

VGA feature connector

J7

Turbo switch

J19

IDE interface 1

J8

Speaker

J20

IDE interface 2

J9

Power LED & keylock

J21

IDE interface LED

J10

Green PC connector

JP18

IDE interface LED

J11

MIDI connector

JP38

Floppy drive interface

J12

PS/2 mouse port

M1

Wavetable connector

J13

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP11

Pins 2 & 3 closed

 

CMOS memory clear

JP11

Pins 1 & 2 closed

CMOS memory normal operation (12887A clock only)

JP12

Open

 

CMOS memory clear (12887A clock only)

JP12

Closed

 

Printer mode select standard

JP15

Closed

 

Printer mode select EPP/ECP

JP15

Open

 

Feature function disabled

JP40

Open

 

Feature function enabled

JP40

Closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

None

4MB

(2) 512K x 36

None

4MB

(2) 256K x 36

(2) 256K x 36

6MB

(2) 512K x 36

(2) 256K x 36

8MB

(2) 1M x 36

None

8MB

(2) 512K x 36

(2) 512K x 36

10MB

(2) 1M x 36

(2) 256K x 36

12MB

(2) 512K x 36

(2) 1M x 36

SIMM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

18MB

(2) 2M x 36

(2) 256K x 36

20MB

(2) 512K x 36

(2) 2M 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

34MB

(2) 4M x 36

(2) 256K x 36

36MB

(2) 512K x 36

(2) 4M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

66MB

(2) 8M x 36

(2) 256K x 36

68MB

(2) 512K x 36

(2) 8M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 2M x 36

(2) 8M 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

Bank 2

TAG

256KB (A)

None

None

(2) 32K x 36

Unidentified

256KB (B)

(2) 32K x 32

None

None

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

512KB

(2) 32K x 32

(2) 32K x 32

None

(1) 16K/32K x 8

CACHE JUMPER CONFIGURATION

Size

JP22

JP31

256KB (B)

Open

Pins 1 & 2 closed

512KB

Closed

Pins 2 & 3 closed

VIDEO MEMORY CONFIGURATION

Note: The video chips sizes are unidentified.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

JP24

JP27

JP29

JP30

75MHz

50MHz

1.5x

Open

Open

Open

Open

90MHz

60MHz

1.5x

Closed

Open

Open

Open

100MHz

66MHz

1.5x

Closed

Closed

Open

Open

120MHz

60MHz

2x

Closed

Open

Closed

Open

133MHz

66MHz

2x

Closed

Closed

Closed

Open

DMA CHANNEL SELECTION

Channel

JP13

JP14

1

Pins 1 & 2 closed

Pins 1 & 2 closed

3

Pins 2 & 3 closed

Pins 2 & 3 closed