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Alpha Microsystems AM-190

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Jumper Settings

Processor

Motorola 68040

Processor Speed

66MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

128KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, SCSI interface, serial ports (2), VME bus connectors (2), I/O bus connectors (2), UPS switch contact port, Ethernet LEDs (3), Memory configuration LED, AM-191 boot module slot, AUI port

NPU Options

None

34222-1.png

CONNECTIONS

Purpose

Location

Purpose

Location

VME bus connector

CN1

I/O bus connector

J7

VME bus connector

CN2

I/O bus connector

J8

Serial port 1

J1

Floppy drive interface

J10

Serial port 2

J2

+5v chassis fan power

JX1

UPS switch contact port

J3

+12v chassis fan power

JX2

AUI port

J4

+5v chassis fan power

JY1

Front panel connector

J5

+12v chassis fan power

JY2

SCSI interface

J6

AM-191 boot module slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Remote reset disabled

W7

Open

 

Remote reset enabled

W7

Closed

»

Timeout clock source select 1MHz

W8

Pins 2 & 3 closed

 

Timeout clock source select 500KHz

W8

Pins 1 & 2 closed

»

Factory configured - do not alter

W9

Closed

»

Factory configured - do not alter

W11

Closed

»

Factory configured - do not alter

W12

Closed

»

Ethernet sonic chip select 1/2 BCLK

W13

Pins 1 & 2 closed

 

Ethernet sonic chip select 1 BCLK

W13

Pins 2 & 3 closed

»

Factory configured - do not alter

W15

Closed

»

MMU enabled

W16/pins 1 & 2

Open

 

MMU disabled

W16/pins 1 & 2

Closed

»

Factory configured - do not alter

W18

Open

»

Factory configured - do not alter

W19

Closed

»

80486 VPC disabled

W20

Open

 

80486 VPC enabled

W20

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

None

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

16MB

(1) 4M x 36

None

None

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(1) 4M x 36

(1) 1M x 36

None

None

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

None

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

32MB

(1) 8M x 36

None

None

None

32MB

(1) 4M x 36

(1) 4M x 36

None

None

36MB

(1) 8M x 36

(1) 1M x 36

None

None

40MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

None

44MB

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 8M x 36

(1) 4M x 36

None

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

None

64MB

(1) 8M x 36

(1) 8M x 36

None

None

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

80MB

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

None

112MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

Note: The location of banks 0, 1, 2 & 3 are unidentified. Do not install SIMM in SL1.

CACHE CONFIGURATION

Note: Board is factory installed with 128KB cache. The location is unidentified.

CACHE JUMPER CONFIGURATION (80486 CACHE)

Setting

W14

Enabled

Closed

Disabled

Open

CACHE JUMPER CONFIGURATION (68040 CACHE)

Setting

W16/pins 3 & 4

Enabled

Open

Disabled

Closed

SERIAL PORT 1 SELECTION

Setting

W1

W3

W5

»

RS232

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

 

RS422

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

SERIAL PORT 2 SELECTION

Setting

W2

W4

W6

»

RS232

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

 

RS422

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

MAIN BOOT SELECTION

Setting

SW1/5

SW1/6

SW1/7

SW1/8

Floppy

Off

Off

Off

Off

SCSI disk drive

Off

Off

Off

On

AM-520

Off

On

Off

Off

ALTERNATE BOOT SELECTION

Setting

SW1/1

SW1/2

SW1/3

SW1/4

None

Off

Off

Off

Off

Floppy

Off

Off

Off

On

VCR

Off

Off

On

On

SCSI streamer/DAT

Off

On

On

Off

AM-640 MagTape

Off

On

Off

Off

SCSI TERMINATION SELECTION

Setting

W10

»

SCSI termination enabled

Pins 2 & 3 closed

 

SCSI termination disabled

Pins 1 & 2 closed

DIAGNOSTIC LED(S)

Note: Function of LEDs (CN3-CN6) are unidentified.

See Also