NMC INTERNATIONAL

NMC 6BAX
Device Type Mainboard
Processor Pentium II
Processor Speed 200/233/266/300/333/350/366/400/450MHz
Chip Set Intel 440BX
Maximum Onboard Memory 768MB (EDO & SDRAM supported)
Cache 256/512KB (located on the Pentium II CPU)
BIOS Award
Dimensions Unidentified
I/O Options 16-bit ISA slots (3), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, IR connector, PS/2 mouse port, PS/2 keyboard port, serial ports (2), USB ports (2), ATX power connector, AGP slot, SB-Link connector, Wake-on-LAN connector


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 interface LED J3/Pins 7 & 8
USB port 2 CN4 Turbo LED J3/Pins 9 & 10
Serial port 1 CN5 Soft off power connector J3/Pins 12 & 13
Serial port 2 CN6 CPU fan power J4
Parallel port CN7 Chassis fan power J5
Floppy drive interface FDD Power fan J6
IDE interface 1 IDE1 Wake-on-LAN connector J7
IDE interface 2 IDE2 SB-Link connector J8
16-bit ISA slots IS1 - IS3 32-bit PCI slots

PC1 - PC4


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

 CMOS memory normal operation

JP1

Pins 1 & 2 closed
  CMOS memory clear

JP1

Pins 2 & 3 closed
» Factory configued - do not alter JP3 Pins 13 & 14 Reserved
» Factory configued - do not alter JP3 Pins 15 & 16 Reserved
» Factory configued - do not alter JP3 Pins 17 & 18 Reserved
» Factory configued - do not alter JP3 Pins 19 & 20 Reserved
» Factory configued - do not alter JP3 Pins 21 & 22 Reserved
» Factory configued - do not alter JP3 Pins 22 & 24 Reserved
» Power-on Keyboard disabled JP13 Pins 2 & 3 closed
  Power-on Keyboard enabled JP13 Pins 1 & 2 closed
  Auto bus clock selected JP100

Pins 1 & 2 closed
  100MHz bus clock selected JP100

Pins 2 & 3 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

16MB

(1) 2M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 4M x 64

None

None

32MB

(1) 2M x 64

(1) 1M x 64

(1) 1M x 64

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

48MB

(1) 4M x 64

(1) 1M x 64

(1) 1M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

80MB

(1) 8M x 64

(1) 1M x 64

(1) 1M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

256MB

(1) 32M x 64

None

None

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

*272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

*288MB

(1) 32M x 64

(1) 2M x 64

(1) 2M x 64

*320MB

(1) 32M x 64

(1) 4M x 64

(1) 4M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

*384MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

*512MB

(1) 32M x 64

(1) 32M x 64

None

*512MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

*768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64
Note:  Board supports EDO & SDRAM memory. Maximum SDRAM is 384MB. Maximum EDO is 768MB.
*: Memory configurations require EDO memory.


CACHE CONFIGURATION

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


CPU SPEED SELECTION

CPU Speed

 Clock Speed JP3

 

 200MHz 66MHz Pins 1 & 2 closed
  233MHz 66MHz Pins 3 & 4 closed
» 266MHz 66MHz Pins 5 & 6 closed
  300MHz 66MHz Pins 7 & 8 closed
  300MHz 100MHz Pins 1 & 2 closed
  333MHz 66MHz Pins 9 & 10 closed
  350MHz 100MHz Pins 3 & 4 closed
  366MHz 66MHz Pins 11 & 12 closed
  400MHz 100MHz Pins 5 & 6 closed
  450MHz 100MHz Pins 7 & 8 closed
  500MHz 100MHz Pins 9 & 10 closed
  550MHz 100MHz Pins 11 & 12 closed