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MODEL 2060

JC INFORMATION SYSTEMS CORPORATION

MODEL 2060

Processor

80386DX/80486SX/80487SX/80486DX/80486DX2

Processor Speed

20/25/33/40(internal)/50/50(internal)/66(internal)

Chip Set

OPTI

Max. Onboard DRAM

64MB

SRAM Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 202mm

I/O Options

16-bit riser card slot, bus mouse port, diagnostic port

floppy drive interface, IDE interface, parallel port, PS/2 style keyboard

serial ports (2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Diagnostic port

DIAG

IDE interface

J13

VGA port

J1

Power LED & keylock

J15

Parallel port

J2

Turbo LED

J16

Serial port (COM2)

J3

Turbo switch

J17

Serial port (COM1)

J4

Reset switch

J18

Bus mouse port

J5

Speaker

J19

PS/2 style keyboard connector

J6

External battery

P1

VGA feature connector

J7

16-bit riser card

S1

Floppy drive interface

J12

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

JP18

pins 2 & 3 closed

 

CMOS memory clear

JP18

pins 1 & 2 closed

Monitor type select color

JP19

closed

 

Monitor type select monochrome

JP19

open

BIOS type select EPROM

JP20

pins 2 & 3 closed

 

BIOS type select Flash ROM

JP20

pins 1 & 2 closed

On-board VGA enabled

JP21

closed

 

On-board VGA disabled

JP21

open

VRAM CONFIGURATION

Size

VRAM

512KB

NONE

1024KB

(4) 44256

Note:The base 512KB is soldered on board.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

7MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CPU TYPE CONFIGURATION

Type

JP1

JP2

JP3

JP11

JP13

80486DX2

pins 1 & 2

closed

pins 1 & 2

closed

pins 2 & 3

80486DX

pins 1 & 2

closed

pins 1 & 2

closed

pins 2 & 3

80487SX

pins 1 & 2

closed

pins 2 & 3

closed

pins 2 & 3

80486SX

pins 2 & 3

open

open

closed

pins 2 & 3

80386DX

N/A

N/A

N/A

open

pins 1 & 2

Note:Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

OSCI

JP12

S0

S1

S2

20MHz

40MHz

pins 2 & 3

closed

open

closed

25MHz

50MHz

pins 2 & 3

open

open

closed

33MHz

66MHz

pins 2 & 3

closed

closed

open

40MHz

80MHz

pins 2 & 3

open

closed

open

50(internal)MHz

50MHz

pins 2 & 3

open

open

closed

50MHz

50MHz

pins 1 & 2

open

open

closed

66(internal)MHz

66MHz

pins 2 & 3

closed

closed

open

Note:Pins designated should be in the closed position.

SRAM JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP7

64KB

open

open

open

open

128KB

closed

open

open

closed

256KB

closed

closed

closed

closed

SRAM CONFIGURATION

Size

Cache SRAM

Location

TAG

64KB

(8) 8K x 8

Banks 0 & 1

(1) 16K x 4

128KB

(4) 32K x 8

Bank 0

(1) 16K x 4

256KB

(8) 32K x 8

Banks 0 & 1

(1) 16K x 4

PARALLEL & SERIAL PORT IRQ CONFIGURATION

Function/IRQ

Jumper

Position

Parallel port interrupt select IRQ7

JP14/PP

pins 1 & 2 closed

 

Parallel port interrupt select IRQ5

JP14/PP

pins 2 & 3 closed

Serial port COM 1 interrupt select IRQ4

JP14/S1

pins 1 & 2 closed

 

Serial port COM 1 interrupt select IRQ3

JP14/S1

pins 2 & 3 closed

Serial port COM 2 interrupt select IRQ3

JP14/S2

pins 2 & 3 closed

 

Serial port COM 2 interrupt select IRQ4

JP14/S2

pins 1 & 2 closed