NMC INTERNATIONAL
NMC 6BB
| Device Type | Mainboard |
| Processor | Pentium II/Celeron |
| Processor Speed | 233/266/300/333/350/400/450/500MHz |
| Chip Set | Intel 440BX |
| Maximum Onboard Memory | 768MB (SDRAM supported) |
| Cache | 128/512KB (located on the Pentium II CPU) |
| BIOS | Award |
| Dimensions | 240mm x 220mm |
| I/O Options | 16-bit ISA slots (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, AT keyboard port, serial interfaces (2), IR connector, ATX power connector, AGP slot, Wake-on-LAN connector, SB-Link connector |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| AGP slot | AGP |
Power switch | J1/Pins 12 & 13 |
| AT power connector | AT |
Green PC connector | J1/Pins 14 & 15 |
| ATX power connector | ATX |
Speaker | J2/Pins 1 - 4 |
| Serial interface 1 | COM1 | Reset switch | J2/Pins 5 & 6 |
| Serial interface 2 | COM2 | Power LED & keylock | J2/Pins 8 - 12 |
| CPU fan power | FAN1 | Turbo LED | J2/Pins 14 & 15 |
| Chassis fan power | FAN2 | SB-Link connector | J4 |
| Power fan | FAN3 | PS/2 mouse interface | MOUSE |
| Floppy drive interface | FDD | PS/2 keyboard port | KB |
| IDE interface 1 | IDE1 | Parallel interface | LPT |
| IDE interface 2 | IDE2 | 32-bit PCI slots | PC1 - PC4 |
| 16-bit ISA slots | IS1 - IS2 | USB interface | USB |
| IDE interface LED | J1/Pins 1 - 4 | Wake-on-LAN connector | WOL |
| IR connector | J1/Pins 6 - 10 | ||
USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
CMOS memory normal operation | JBAT1 |
Pins 1 & 2 closed |
| CMOS memory clear | JBAT1 |
Pins 2 & 3 closed |
|
» |
Power on keyboard disabled | JP1 | Pins 1 & 2 closed |
| Power on keyboard enabled | JP1 | Pins 2 & 3 closed | |
| » | VGA card normal selected | VGA | Closed |
| VGA card special selected | VGA | Open | |
| 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 SDRAM memory. | |||
| USB PORT SELECTION | |||
Function |
JP5 | JP5 | |
| » | Redirect USB port to AGP interface | Pins 2 & 3 closed | Pins 2 & 3 closed |
| Redirect USB port to USB interface | Pins 1 & 2 closed | Pins 1 & 2 closed | |
CACHE CONFIGURATION |
| Note: 256KB/512KB cache is located on the Pentium II CPUs. |
CPU BUS SPEED SELECTION |
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Clock speed |
JP3 | JP4 | |
| » | Autodetect | Pins 1 & 2 closed | Pins 2 & 3 closed |
66MHz |
Pins 1 & 2 closed | Pins 1 & 2 closed | |
| 100MHz | Pins 2 & 3 closed | Pins 1 & 2 closed | |
CPU SPEED SELECTION |
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CPU speed |
Clock speed |
Multiplier |
JP8 | JP9 | JP10 | JP11 |
233MHz |
66MHz |
3.5x |
2 & 3 | Open | Open | 2 & 3 |
266MHz |
66MHz |
4x |
Open | 2 & 3 | 2 & 3 | 2 & 3 |
300MHz |
66MHz |
4.5x |
Open | 2 & 3 | Open | 2 & 3 |
333MHz |
66MHz |
5x |
Open | Open | 2 & 3 | 2 & 3 |
| 350MHz | 100MHz | 3.5x |
2 & 3 | Open | Open | 2 & 3 |
| 400MHz | 100MHz | 4x |
Open | 2 & 3 | 2 & 3 | 2 & 3 |
| 450MHz | 100MHz | 4.5x |
Open | 2 & 3 | Open | 2 & 3 |
| 500MHz | 100MHz | 5x |
Open | Open | 2 & 3 | 2 & 3 |
| Note: Pins mentioned are in the closed position. | ||||||