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486 PSD

FIRST INTERNATIONAL COMPUTER, INC.

486 PSD

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

25/33/50(internal)/50/66(internal)/66MHz

Chip Set

SIO

Max. Onboard DRAM

64MB

Cache

64/256KB

BIOS

Award/AMI

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots, SCSI interface, PS/2 mouse port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J11

IDE interface LED

CN1

Turbo switch

J12

SCSI interface

CN3

Reset switch

J13

PS/2 mouse

CN5

Speaker

J14

32-bit PCI slots

S1, S2, S3

Power LED & keylock

J15

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

SCSI power from system

J1

Closed

 

SCSI power from peripheral device

J1

Open

BIOS type select - Award

J7

pins 1 & 2 closed

 

BIOS type select -AMI

J7

pins 2 & 3 closed

Factory configured - do not alter

J9

pins 1 & 2 closed

Factory configured - do not alter

J10

pins 1 & 2 closed

CPU type select - PGA

JC5

Closed

 

CPU type select - PQFP

JC5

Open

Parity error disabled

JF1

pins 1 & 2 closed

 

Parity error enabled

JF1

pins 2 & 3 closed

CPU generation parity

JF2

pins 1 & 2 closed

 

DPU generation parity

JF2

pins 2 & 3 closed

Cache wait state disabled

JF5

pins 2 & 3 closed

 

Cache wait state enabled

JF5

pins 1 & 2 closed

Factory configured - do not alter

JF6

pins 1 & 2 closed

7-bit tag address

JF7

pins 2 & 3 closed

 

8-bit tag address

JF7

pins 1 & 2 closed

L2 cache enabled

JF8

pins 2 & 3 closed

 

L2 cache disabled

JF8

pins 1 & 2 closed

Cache select - 256KB

JS1

pins 2 & 3 closed

 

Cache select - 64KB

JS1

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 256KB x 36

(1) 256KB x 36

NONE

NONE

4MB

(1) 256KB x 36

(1) 256KB x 36

(1) 256KB x 36

(1) 256KB x 36

5MB

(1) 1M x 36

(1) 256KB x 36

NONE

NONE

4MB

(1) 1M x 36

(1) 256KB x 36

NONE

NONE

7MB

(1) 1M x 36

(1) 256KB x 36

(1) 256KB x 36

(1) 256KB x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

17MB

(1) 4M x 36

(1) 256KB x 36

NONE

NONE

19MB

(1) 4M x 36

(1) 256KB x 36

(1) 256KB x 36

(1) 256KB x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256KB x 36

(1) 256KB x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256KB x 36

(1) 256KB x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(4) 8K x 8

(4) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

Note: The location of the tag chip is unidentified.

CACHE JUMPER CONFIGURATION

Size

JF9

JF10

64KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

CACHE SELECT CONFIGURATION

Size

JS2

JS3

JS4

JS5

64KB

Open

Open

Open

Open

256KB

Closed

Closed

Closed

Closed

CPU PROCESSOR CONFIGURATION

CPU

JC1/JC2

JC3/JC4

SX

pins 2 & 3 closed

Open

DX/DX2

pins 1 & 2 closed

Closed

CPU TYPE CONFIGURATION

Speed

JF3

JF4

25MHz

pins 1 & 2 closed

pins 1 & 2 closed

33MHz

pins 2 & 3 closed

pins 1 & 2 closed

SCSI CONFIGURATION

Request/IRQ9

JR1

JR2

Installed

pins 1 & 2 closed

pins 1 & 2 closed

Not installed

pins 2 & 3 closed

pins 2 & 3 closed

PCI IRQ CONFIGURATION

IRQ setting

JI1

IRQ 5

pins 1 & 2 closed

IRQ 9

pins 3 & 4 closed

IRQ 11

pins 5 & 6 closed

IRQ 12

pins 7 & 8 closed