SIEMENS NIXDORF INFORMATIONSSYSTEME AG

S26361-D800

Processor

80486SX/80486SX2/80486DX/80486DX2/80486DX4/Pentium Overdrive

Processor Speed

25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (1), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

VGA port

CN1

IDE interface 1

CN8

Parallel port

CN2

IDE interface 2

CN9

Serial port 2

CN3

Imageport connector

CN10

Serial port 1

CN4

VGA feature connector

CN11

PS/2 mouse port

CN5

Speaker

JP1

Optional power connector

CN6

LED connector

JP2

Floppy drive interface

CN7

32-bit PCI slot

SL1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

L2 cache installed

J5D

pins 1 & 2 closed

 

L2 cache not installed

J5D

pins 2 & 3 closed

»

Cache type select HIT

J5E

pins 1 & 2 closed

 

Cache type select L2WB

J5E

pins 2 & 3 closed

»

Cache type select write through

J5F

pins 1 & 2 closed

 

Cache type select write back (Pentium Overdrive)

J5F

pins 2 & 3 closed

»

Factory configured - do not alter

J6A

Closed

»

Flash BIOS mode select normal

J6B

Open

 

Flash BIOS mode select recovery

J6B

Closed

»

Floppy drive interface enabled

J6C

Closed

 

Floppy drive interface disabled

J6C

Open

»

Flash BIOS write protect enabled

J6D

Open

 

Flash BIOS write protect disabled

J6D

Closed

»

CMOS memory normal operation

J6E

Open

 

CMOS memory clear

J6E

Closed

»

Factory configured - do not alter

J7

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

MD1

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

J5B

J5C

128KB

pins 1 & 2 closed

pins 1 & 2 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

J3

80486SX

pins 1 & 2 closed

80486SX2

pins 1 & 2 closed

80486DX

pins 2 & 3 closed

80486DX2

pins 2 & 3 closed

80486DX4

pins 2 & 3 closed

Pentium Overdrive

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

J2

J5A

Non SL enhanced CPU

pins 2 & 3, 5 & 6 closed

pins 2 & 3 closed

SL enhanced CPU

pins 1 & 2, 4 & 5 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

J6F

25MHz

Open

33MHz

Closed

50iMHz

Open

66iMHz

Closed

75iMHz

Open

100iMHz

Closed

CPU VOLTAGE CONFIGURATION

Voltage

J4

3.3v

pins 1 & 2 closed

5v

pins 2 & 3 closed

DMA CHANNEL CONFIGURATION

DMA

J1

DMA 1

pins 1 & 2, 4 & 5 closed

DMA 3

pins 2 & 3, 5 & 6 closed