M TECHNOLOGY, INC. R651 PENTIUM PRO Processor Pentium Pro Processor Speed 150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 1GB (BEDO/EDO supported) Maximum Video Memory None Cache 256/512KB (located on Pentium Pro CPU) BIOS Award Dimensions 304mm x 244mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), USB connectors (2), ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power connector ATX Speaker J2 Serial port 2 CN1 Turbo switch J3 Parallel port CN2 Turbo LED J4 PS/2 mouse port CN3 Reset switch J5 Serial port 1 CN4 Green PC connector J6 Floppy drive interface CN5 IDE interface LED J7 IDE interface 2 CN6 32-bit PCI slots PC1 - PC4 IDE interface 1 CN7 USB connector 1 USB1 Power LED & keylock J1 USB connector 2 USB2 USER CONFIGURABLE SETTINGS Function Label Position ATX power supply enabled JP4 Closed ATX power supply disabled JP4 Open » Factory configured - do not JP9 Unidentified alter » Flash BIOS write protect JP14 Pins 2 & 3 closed disabled Flash BIOS write protect enabled JP14 Pins 1 & 2 closed » CMOS memory normal operation JP15 Open CMOS memory clear JP15 Closed » Monitor type select JP16 Open monochrome/VGA Monitor type select CGA JP16 Closed Flash BIOS voltage select 12v JP17 Pins 2 & 3 closed Flash BIOS voltage select 5v JP17 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (2) 1M x 36 None None None 16MB (2) 1M x 36 (2) 1M x 36 None None 16MB (2) 2M x 36 None None None 24MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 None 24MB (2) 1M x 36 (2) 2M x 36 None None 24MB (2) 2M x 36 (2) 1M x 36 None None 32MB (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 32MB (2) 2M x 36 (2) 1M x 36 (2) 1M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 None None 32MB (2) 4M x 36 None None None 40MB (2) 1M x 36 (2) 2M x 36 (2) 2M x 36 None 40MB (2) 1M x 36 (2) 4M x 36 None None 40MB (2) 2M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 40MB (2) 4M x 36 (2) 1M x 36 None None 48MB (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 None 48MB (2) 2M x 36 (2) 4M x 36 None None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 48MB (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 None 48MB (2) 4M x 36 (2) 2M x 36 None None 56MB (2) 1M x 36 (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 56MB (2) 4M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 64MB (2) 4M x 36 (2) 2M x 36 (2) 2M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 None None 64MB (2) 8M x 36 None None None 72MB (2) 1M x 36 (2) 4M x 36 (2) 4M x 36 None 72MB (2) 1M x 36 (2) 8M x 36 None None 72MB (2) 8M x 36 (2) 1M x 36 None None 80MB (2) 2M x 36 (2) 4M x 36 (2) 4M x 36 None 80MB (2) 2M x 36 (2) 8M x 36 None None 80MB (2) 4M x 36 (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 80MB (2) 8M x 36 (2) 1M x 36 (2) 1M x 36 None 80MB (2) 8M x 36 (2) 2M x 36 None None 88MB (2) 8M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 96MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 None 96MB (2) 4M x 36 (2) 8M x 36 None None 96MB (2) 8M x 36 (2) 2M x 36 (2) 2M x 36 None 96MB (2) 8M x 36 (2) 4M x 36 None None 104MB (2) 1M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 112MB (2) 2M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 112MB (2) 8M x 36 (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 128MB (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 4M x 36 (2) 4M x 36 None 128MB (2) 8M x 36 (2) 8M x 36 None None 128MB (2) 16M x 36 None None None 136MB (2) 1M x 36 (2) 8M x 36 (2) 8M x 36 None 136MB (2) 16M x 36 (2) 1M x 36 None None 144MB (2) 2M x 36 (2) 8M x 36 (2) 8M x 36 None 144MB (2) 2M x 36 (2) 16M x 36 None None 144MB (2) 16M x 36 (2) 1M x 36 (2) 1M x 36 None 144MB (2) 16M x 36 (2) 2M x 36 None None 152MB (2) 16M x 36 (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 160MB (2) 4M x 36 (2) 8M x 36 (2) 8M x 36 None 160MB (2) 4M x 36 (2) 16M x 36 None None 160MB (2) 8M x 36 (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 160MB (2) 16M x 36 (2) 2M x 36 (2) 2M x 36 None 160MB (2) 16M x 36 (2) 4M x 36 None None 176MB (2) 16M x 36 (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 192MB (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 None 192MB (2) 8M x 36 (2) 16M x 36 None None DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 192MB (2) 16M x (2) 4M x 36 (2) 4M x 36 None 36 192MB (2) 16M x (2) 8M x 36 None None 36 200MB (2) 1M x 36 (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 208MB (2) 2M x 36 (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 224MB (2) 4M x 36 (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 224MB (2) 16M x (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 36 256MB (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 256MB (2) 32M x None None None 36 256MB (2) 16M x (2) 8M x 36 (2) 8M x 36 None 36 256MB (2) 16M x (2) 16M x None None 36 36 264MB (2) 1M x 36 (2) 16M x (2) 16M x None 36 36 264MB (2) 32M x (2) 1M x 36 None None 36 272MB (2) 2M x 36 (2) 16M x (2) 16M x None 36 36 272MB (2) 32M x (2) 1M x 36 (2) 1M x 36 None 36 272MB (2) 32M x (2) 2M x 36 None None 36 280MB (2) 32M x (2) 1M x 36 (2) 1M x 36 (2) 1M x 36 36 288MB (2) 4M x 36 (2) 16M x (2) 16M x None 36 36 288MB (2) 32M x (2) 2M x 36 (2) 2M x 36 None 36 288MB (2) 32M x (2) 4M x 36 None None 36 304MB (2) 32M x (2) 2M x 36 (2) 2M x 36 (2) 2M x 36 36 320MB (2) 8M x 36 (2) 16M x (2) 16M x None 36 36 320MB (2) 32M x (2) 4M x 36 (2) 4M x 36 None 36 320MB (2) 32M x (2) 8M x 36 None None 36 320MB (2) 16M x (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 36 352MB (2) 32M x (2) 4M x 36 (2) 4M x 36 (2) 4M x 36 36 384MB (2) 32M x (2) 8M x 36 (2) 8M x 36 None 36 384MB (2) 32M x (2) 16M x None None 36 36 384MB (2) 16M x (2) 16M x (2) 16M x None 36 36 36 392MB (2) 1M x 36 (2) 16M x (2) 16M x (2) 16M x 36 36 36 400MB (2) 2M x 36 (2) 16M x (2) 16M x (2) 16M x 36 36 36 416MB (2) 4M x 36 (2) 16M x (2) 16M x (2) 16M x 36 36 36 448MB (2) 8M x 36 (2) 16M x (2) 16M x (2) 16M x 36 36 36 448MB (2) 32M x (2) 8M x 36 (2) 8M x 36 (2) 8M x 36 36 512MB (2) 32M x (2) 16M x (2) 16M x None 36 36 36 512MB (2) 32M x (2) 32M x None None 36 36 512MB (2) 16M x (2) 16M x (2) 16M x (2) 16M x 36 36 36 36 640MB (2) 32M x (2) 16M x (2) 16M x (2) 16M x 36 36 36 36 768MB (2) 32M x (2) 32M x (2) 32M x None 36 36 36 1GB (2) 32M x (2) 32M x (2) 32M x (2) 32M x 36 36 36 36 Note: Board accepts BEDO/EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium Pro CPU. CPU SPEED SELECTION CPU Clock Multiplier JP1 JP2 JP7 JP8 speed speed 150MHz 60MHz 2.5x Open Closed Open Closed 166MHz 66MHz 2.5x Closed Open Closed Open 180MHz 60MHz 3x Open Closed Open Closed 200MHz 66MHz 3x Closed Open Closed Open CPU SPEED SELECTION (CON’T) CPU Clock Multiplier JP10 JP11 JP12 JP13 speed speed 150MHz 60MHz 2.5x Open Closed Closed Closed 166MHz 66MHz 2.5x Open Closed Closed Closed 180MHz 60MHz 3x Closed Open Closed Closed 200MHz 66MHz 3x Closed Open Closed Closed