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BABY 80386 TAM/20-C3

AUVA COMPUTER, INC.

BABY 80386 TAM/20-C3

Processor

80386DX

Processor Speed

20MHz

Chip Set

C&T

Max. Onboard DRAM

16MB (2MB on board)

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

JP1

Turbo switch

JP5

Speaker

JP2

External battery

JP16

Turbo LED

JP3

32-bit external memory card

SL1 & SL2

Power LED & keylock

JP4

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Pipeline mode enabled

JP6

Closed

 

Pipeline mode disabled

JP6

Open

BIOS type select 27256

JP15

pins 1 & 2 closed

 

BIOS type select 27512

JP15

pins 2 & 3 closed

CMOS memory normal operation

JP17

pins 1 & 2 closed

 

CMOS memory clear

JP17

pins 2 & 3 closed

Monitor type select color

JP18

Closed

 

Monitor type select monochrome

JP18

Open

CMOS memory (Internal Battery)

JP22

pins 2 & 3 closed

 

CMOS memory (External Battery)

JP22

pins 1 & 2 closed

NPU CLOCK SPEED CONFIGURATION

NPU Speed

JP7

JP8

Synchronous

Open

Open

Asynchronous

Closed

Closed

NPU TYPE CONFIGURATION

Type

JP13

JP14

80387

Closed

Closed

None

Open

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 0 (C1)

Bank 1 (C1)

Bank 0 (C2)

Bank 1 (C2)

1MB/1

(8) 411000

NONE

NONE

NONE

NONE

NONE

1MB/2

NONE

NONE

(18) 41256

NONE

NONE

NONE

2MB/1

(8) 411000

(8) 411000

NONE

NONE

NONE

NONE

2MB/2

NONE

NONE

(18) 41256

(18) 41256

NONE

NONE

4MB/1

(8) 411000

(8) 411000

(18) 41256

(18) 41256

NONE

NONE

4MB/2

NONE

NONE

(18) 411000

NONE

NONE

NONE

4MB/3

NONE

NONE

(18) 41256

(18) 41256

(18) 41256

(18) 41256

8MB

NONE

NONE

(18) 411000

(18) 411000

NONE

NONE

10MB

(8) 411000

(8) 411000

(18) 411000

(18) 411000

NONE

NONE

16MB

NONE

NONE

(18) 411000

(18) 411000

(18) 411000

(18) 411000

DRAM SWITCH CONFIGURATION (MAINBOARD)

Size

JP11

JP12

JP24

JP25

1MB/1

Open

pins 1 & 2 closed

pins 1 & 2 closed

Open

1MB/2

Open

Open

Open

Open

2MB/1

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

2MB/2

Open

Open

Open

Open

4MB/1

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

4MB/2

Open

Open

Open

Open

4MB/3

Open

Open

Open

Open

8MB

Open

Open

Open

Open

10MB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

16MB

Open

Open

Open

Open

DRAM SWITCH CONFIGURATION (EMC/8M-C3) (CARD 1)

Size

JP1

JP2

JP3

JP4

1MB/1

N/A

N/A

N/A

N/A

1MB/2

Open

pins 1 & 2 closed

Open

pins 1 & 2 closed

2MB/1

N/A

N/A

N/A

N/A

2MB/2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

4MB/1

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

4MB/2

Open

pins 1 & 2 closed

Open

pins 1 & 2 closed

4MB/3

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

8MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

10MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

16MB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

DRAM SWITCH CONFIGURATION (EMC/8M-C3) (CARD 2)

Size

JP1

JP2

JP3

JP4

1MB/1

N/A

N/A

N/A

N/A

1MB/2

N/A

N/A

N/A

N/A

2MB/1

N/A

N/A

N/A

N/A

2MB/2

N/A

N/A

N/A

N/A

4MB/1

N/A

N/A

N/A

N/A

4MB/2

N/A

N/A

N/A

N/A

4MB/3

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

8MB

N/A

N/A

N/A

N/A

10MB

N/A

N/A

N/A

N/A

16MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

PARITY CHECK CONFIGURATION (MAINBOARD ONLY)

Size

P0

P1

1MB/1

(4) 41256

NONE

2MB/1

(4) 41256

(4) 41256

4MB/1

(4) 41256

(4) 41256

10MB

(4) 41256

(4) 41256

MISCELLANEOUS TECHNICAL NOTE

Note: NMB (AAA2801-8), Micron (MT1259-10), and Hyundai (HY53C256LS) DRAM are inhibited on the

EMC/8M-C3 RAM card.