NMC INTERNATIONAL

NMC 6ZAX

Device Type Mainboard
Processor Pentium II
Processor Speed 200/233/266/300/333/350/366/400/450MHz
Chip Set Intel 440ZX
Maximum Onboard Memory 256MB (EDO & SDRAM supported)
Cache 256/512KB (located on the Pentium II CPU)
BIOS Award
Dimensions Unidentified
I/O Options 16-bit ISA slots (2), 32-bit PCI slots (5), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 keyboard port, serial ports (2), IR connector, ATX power connector, AGP slot, Wake-on-LAN connector, SB-Link connector, USB ports (2)


CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

Reset switch J2/Pins 1 & 2
ATX power connector

ATX

Speaker J2/Pins 4 - 7
PS/2 mouse port CN1 Power LED & Keylock J2/Pins 9 - 13
PS/2 keyboard port CN2 IR connector J3/Pins 1 - 5
USB port 1 CN3 IDE connector LED J3/Pins 7 & 8
USB port 2 CN4 Turbo LED J3/Pins 9 & 10
Serial port 1 CN5 Power switch J3/Pins 12 & 13
Serial port 2 CN6 CPU fan power J4
Parallel port CN7 Power fan J5
Floppy drive interface FDD Chassis fan power J6
IDE interface 1 IDE1 Wake-on-LAN connector J7
IDE interface 2 IDE2 SB-Link connector

J8

16-bit ISA slots IS1 - IS2 32-bit PCI slots

PC1 - PC5


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP1

Pins 1 & 2 closed

  CMOS memory clear

JP1

Pins 2 & 3 closed

  Automatic CPU selection enabled JP3 Pins 13 & 14 unidentified
» Factory configured - do not alter JP3 Pins 19 & 20 reserved
» Factory configured - do not alter JP3 Pins 21 & 22 reserved
» Factory configured - do not alter JP3 Pins 23 & 24 reserved
» Factory configured - do not alter JP3 Pins 25 & 26 reserved

»

Power on Keyboard disabled JP13 Pins 2 & 3 closed
  Power on Keyboard enabled JP13 Pins 1 & 2 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(1) 1M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

16MB

(1) 2M x 64

None

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

32MB

(1) 4M x 64

None

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

64MB

(1) 8M x 64

None

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

*128MB

(1) 16M x 64

None

*136MB

(1) 16M x 64

(1) 1M x 64

*144MB

(1) 16M x 64

(1) 2M x 64

*160MB

(1) 16M x 64

(1) 4M x 64

*192MB

(1) 16M x 64

(1) 8M x 64

*256MB

(1) 16M x 64

(1) 16M x 64

Note: Board supports EDO & SDRAM memory. Maximum SDRAM is 128MB. Maximum EDO is 256MB.
*: Memory configurations require EDO memory.


CACHE CONFIGURATION

Note:  256KB/512KB cache is located on the Pentium II CPUs. 


CPU SPEED SELECTION (PENTIUM)

CPU speed

Clock speed

Multiplier

JP3

200MHz

66MHz

3x

Pins 1 & 2, 15 & 16 closed

233MHz

66MHz

3.5x

Pins 3 & 4, 15 & 16 closed

266MHz

66MHz

4x

Pins 5 & 6, 15 & 16 closed

300MHz

66MHz

4.5x

Pins 7 & 8, 15 & 16 closed

300MHz

100MHz

3x

Pins 1 & 2, 17 & 18 closed

333MHz

66MHz

5x

Pins 9 & 10, 15 & 16 closed

350MHz

100MHz

3.5x

Pins 3 & 4, 17 & 18 closed

400MHz

100MHz

4x

Pins 5 & 6, 17 & 18 closed

450MHz

100MHz

4.5x

Pins 7 & 8, 17 & 18 closed