NIAGARA SMD TECHNOLOGY, INC. NT944 Processor IBM 6X86/CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 512MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award/Phoenix Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), serial port, cache slot, IR connector, USB connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location IDE interface 2 CN1 IR connector J26 IDE interface 1 CN2 Power LED & JP27 pins 1 - keylock 5 PS/2 mouse port J2 Turbo LED JP27 pins 7 & 17 Serial port J5 Reset switch JP27 pins 8 & 18 Serial port J6 IDE interface LED JP27 pins 10 & 20 Floppy drive J7 Speaker JP27 pins 11 - interface 14 Chassis fan power J9 32-bit PCI slots PC1 – PC4 Parallel port J21 Cache slot SL1 USB connector J22 Note: The location of J9 is unidentified. USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP2 Open CMOS memory clear JP2 Closed » Flash BIOS voltage select 5v JP3 Pins 1 & 2 closed Flash BIOS voltage select 12v JP3 Pins 2 & 3 closed » Factory configured - do not JP4 Closed alter » Factory configured - do not JP6 Closed alter » Factory configured - do not JP7 Closed alter » Factory configured - do not JP8 Closed alter » Factory configured - do not JP9 Unidentified alter DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 512K x 36 (2) 512K x 36 8MB (2) 1M x 36 None 10MB (2) 256K x 36 (2) 1M x 36 12MB (2) 512K x 36 (2) 1M x 36 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 18MB (2) 256K x 36 (2) 2M x 36 20MB (2) 512K x 36 (2) 2M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 34MB (2) 256K x 36 (2) 4M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 36MB (2) 512K x 36 (2) 4M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 66MB (2) 256K x 36 (2) 8M x 36 68MB (2) 512K x 36 (2) 8M x 36 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 130MB (2) 256K x 36 (2) 16M x 36 132MB (2) 512K x 36 (2) 16M x 36 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 32M x 36 None 256MB (2) 16M x 36 (2) 16M x 36 258MB (2) 256K x 36 (2) 32M x 36 260MB (2) 512K x 36 (2) 32M x 36 264MB (2) 32M x 36 (2) 1M x 36 272MB (2) 32M x 36 (2) 2M x 36 288MB (2) 32M x 36 (2) 4M x 36 320MB (2) 32M x 36 (2) 8M x 36 384MB (2) 32M x 36 (2) 16M x 36 512MB (2) 32M x 36 (2) 32M x 36 Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. CACHE CONFIGURATION Size Bank 0 SL1 256KB (2) 32K x 32 Not installed 512KB (2) 32K x 32 256KB module installed CACHE JUMPER CONFIGURATION Size JP10 JP11 JP12 JP13 256KB Open Open Closed Open 512KB (A) Closed Closed Open Closed CPU SPEED SELECTION (IBM) CPU Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 speed speed 120MHz 50MHz 1.5x On On Off Off Off 150MHz 60MHz 1.5x On Off Off Off Off CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 speed speed 120MHz 50MHz 1.5x On On Off Off Off 150MHz 60MHz 1.5x On Off Off Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 speed speed 75MHz 50MHz 1.5x On On Off Off Off 90MHz 60MHz 1.5x On Off Off Off Off 100MHz 66MHz 1.5x Off On Off Off Off 120MHz 60MHz 2x On Off On Off Off 133MHz 66MHz 2x Off On On Off Off 150MHz 60MHz 2.5x On Off On On Off 166MHz 66MHz 2.5x Off On On On Off 180MHz 60MHz 3x On Off Off On Off 200MHz 66MHz 3x Off On Off On Off CPU TYPE SELECTION Type JP21 IBM 6X86 All pins closed IBM M2 All pins open CX M1 All pins closed CX M2 All pins open AM 5K86 All pins closed AM K5 All pins open P54C All pins closed P55C All pins open CPU VOLTAGE SELECTION Voltage JP5 3.3v Pins 1 & 2 closed » 3.45v Pins 3 & 4 closed 3.6v Pins 5 & 6 closed