NEC TECHNOLOGIES, INC.

IMAGE 425/433/466

Processor

80486SX/80487DX/80486DX/ODP486SX/80486DX2

Processor Speed

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

Chip Set

C & T

Max. Onboard DRAM

64MB

Cache

256KB expandable

BIOS

Intel

Dimensions

220mm x 220mm

I/O Options

Cache expansion slot, floppy drive interface, IDE interface, multifunction connector

(PS/2 mouse, PS/2 keyboard, power LED), parallel port, proprietary ethernet slot

SCSI interface, serial port (2, 1 optional), VGA port, VGA feature connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface

J7

Cache expansion slot

J18

Floppy drive interface

J8

Speaker (not used)

JP1

VGA feature connector

J9

Reset switch

JP3

Optional disk power supply

J12

Serial port 1

P1

External battery

J13

Serial port 2 (optional)

P2

IDE interface LED (not used)

J14

VGA port

P3

Proprietary Ethernet slot

J15

Parallel port

P4

Proprietary riser card slot

J16

Multifunction connector

P5

SCSI interface

J17

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured do not alter

JP2

Open

»

ROM emulation enabled

JP4

Open

 

ROM emulation disabled

JP4

Closed

»

Onboard video enabled

SW1/switch 1

Off

 

Onboard video disabled

SW1/switch 1

On

»

Floppy interface enabled

SW1/switch 2

Off

 

Floppy interface disabled

SW1/switch 2

On

»

System password enabled

SW1/switch 3

Off

 

System password disabled

SW1/switch 3

On

»

Flash BIOS write protect enabled

SW1/switch 4

Off

 

Flash BIOS write protect disabled

SW1/switch 4

On

»

BIOS programming via network enabled

SW1/switch 5

Off

 

BIOS programming via network disabled

SW1/switch 5

On

»

CPU speed select 25/50iMHz

SW1/switch 6

On

 

CPU speed select 33/66iMHz

SW1/switch 6

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

5M

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6M

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7M

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8M

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9M

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10M

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12M

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13M

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16M

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16M

(1) 4M x 36

NONE

NONE

NONE

17M

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18M

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19M

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20M

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21M

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22M

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24M

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25M

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28M

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32M

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33M

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

36M

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37M

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

40M

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48M

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49M

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52M

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64M

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36