DELL COMPUTER CORPORATION

OPTIPLEX GX1, OPTIPLEX NX1

Device Type Mainboard
Processor Pentium II
Processor Speed 266/333/350/400/450MHz
Chip Set Intel 440BX
Video Chip Set ATI
Maximum Onboard Memory 384MB
Maximum Video Memory 8MB
Audio Chip Set Unidentified
Cache 512KB (located on Pentium II CPU)
BIOS Unidentified
Dimensions 305mm x 244mm
I/O Options Ethernet 10BaseT connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot, USB connectors (2), ATX power connector, line in, line out, microphone in, audio in – CD-ROM


CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Serial port 2

CN6

Front panel connector

C1

USB connector 1

CN7

Chassis intrusion connector

C2

USB connector 2

CN8

Telephony connector

C3

PS/2 mouse port

CN9

Audio in – CD-ROM

C4

Parallel port

CN10

CPU fan power

C5

Serial port 1

CN11

Line in

CN1

Floppy drive interface

CN12

Line out

CN2

IDE interface 2

CN13

Microphone in

CN3

IDE interface 1

CN14

Ethernet 10Base5 connector

CN4

VGA feature connector

CN15

VGA port

CN5

Riser slot

SL1


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J1/pins 17 & 18

Open

»

Password enabled

J1/pins 19 & 20

Closed

  Password disabled

J1/pins 19 & 20

Open


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 2M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

40MB

(1) 4M x 64

(1) 1M x 64

None

40MB

(1) 2M x 64

(1) 2M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

56MB

(1) 4M x 64

(1) 2M x 64

(1) 1M x 64

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

72MB

(1) 8M x 64

(1) 1M x 64

None

72MB

(1) 4M x 64

(1) 4M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

None

80MB

(1) 4M x 64

(1) 4M x 64

(1) 2M x 64

88MB

(1) 8M x 64

(1) 2M x 64

(1) 1M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

None


DIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

104MB

(1) 8M x 64

(1) 4M x 64

(1) 1M x 64

112MB

(1) 8M x 64

(1) 4M x 64

(1) 2M x 64

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

136MB

(1) 16M x 64

(1) 1M x 64

None

136MB

(1) 8M x 64

(1) 8M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

144MB

(1) 8M x 64

(1) 8M x 64

(1) 2M x 64

152MB

(1) 16M x 64

(1) 2M x 64

(1) 1M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

None

160MB

(1) 8M x 64

(1) 8M x 64

(1) 4M x 64

168MB

(1) 16M x 64

(1) 4M x 64

(1) 1M x 64

176MB

(1) 16M x 64

(1) 4M x 64

(1) 2M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

200MB

(1) 16M x 64

(1) 8M x 64

(1) 1M x 64

208MB

(1) 16M x 64

(1) 8M x 64

(1) 2M x 64

224MB

(1) 16M x 64

(1) 8M x 64

(1) 4M x 64

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64


CACHE CONFIGURATION

Note: 512KB cache is located on the Pentium II CPU.


VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

4MB

4MB

None

8MB

4MB

4MB module installed

Note: The location of bank 0 is unidentified.


CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J1/pins 3 & 4

J1/pins 5 & 6

J1/pins 7 & 8

266MHz

66MHz

4x

Open

Open

Open

333MHz

66MHz

5x

Open

Open

Open

350MHz

100MHz

3.5x

Open

Open

Closed

400MHz

100MHz

4x

Open

Closed

Open

450MHz

100MHz

4.5x

Closed

Open

Open


CPU SPEED SELECTION (CON’T)

CPU speed

Clock speed

Multiplier

J1/pins 9 & 10

J1/pins 13 & 14

J1/pins 15 & 16

266MHz

66MHz

4x

Open

Closed

Closed

333MHz

66MHz

5x

Closed

Open

Closed

350MHz

100MHz

3.5x

Open

Open

Open

400MHz

100MHz

4x

Open

Open

Open

450MHz

100MHz

4.5x

Open

Open

Open