AMERICAN MEGATRENDS, INC. ATLANTIS PENTIUM II Device Type Mainboard Processor Pentium II Processor Speed 233/266/300/333MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 384MB (EDO & SDRAM supported) Maximum Video Memory None Cache 256/512KB (located on Pentium II CPU) BIOS AMI Dimensions 305mm x 244mm I/O Options 32-bit PCI slots (5), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location AGP slot AGP CPU fan power C4 ATX power ATX Parallel port CN1 connector Power LED & C1/pins 1 - 5 Serial port CN2 keylock Turbo switch C1/pins 6 & 7 Serial port CN3 Green PC connector C1/pins 8 & 9 PS/2 mouse port CN4 Green PC LED C1/pins 10 & IDE interface 2 CN5 11 Speaker C1/pins 12 - IDE interface 1 CN6 15 IDE interface LED C1/pins 16 & Floppy drive CN7 17 interface Soft off power C1/pins 18 & IR connector IR1 supply 19 Reset switch C1/pins 20 & 32-bit PCI slots PC1 - PC5 21 Chassis fan power C2 USB connector 1 USB1 Chassis door C3 USB connector 2 USB2 connector Note: The location of the USB connectors is unidentified. USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation CPW Open CMOS memory clear CPW Closed DIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 8MB (1) 1M x 64 None None 16MB (1) 2M x 64 None None 16MB (1) 1M x 64 (1) 1M x 64 None 24MB (1) 2M x 64 (1) 1M x 64 None 24MB (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 32MB (1) 4M x 64 None None 32MB (1) 2M x 64 (1) 1M x 64 (1) 1M x 64 32MB (1) 2M x 64 (1) 2M x 64 None 40MB (1) 4M x 64 (1) 1M x 64 None 40MB (1) 2M x 64 (1) 2M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 1M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 2M x 64 None 48MB (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 56MB (1) 4M x 64 (1) 2M x 64 (1) 1M x 64 64MB (1) 8M x 64 None None 64MB (1) 4M x 64 (1) 2M x 64 (1) 2M x 64 DIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 Bank 2 64MB (1) 4M x 64 (1) 4M x 64 None 72MB (1) 8M x 64 (1) 1M x 64 None 72MB (1) 4M x 64 (1) 4M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 1M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 2M x 64 None 80MB (1) 4M x 64 (1) 4M x 64 (1) 2M x 64 88MB (1) 8M x 64 (1) 2M x 64 (1) 1M x 64 96MB (1) 8M x 64 (1) 2M x 64 (1) 2M x 64 96MB (1) 8M x 64 (1) 4M x 64 None 96MB (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 104MB (1) 8M x 64 (1) 4M x 64 (1) 1M x 64 112MB (1) 8M x 64 (1) 4M x 64 (1) 2M x 64 128MB (1) 16M x 64 None None 128MB (1) 8M x 64 (1) 4M x 64 (1) 4M x 64 128MB (1) 8M x 64 (1) 8M x 64 None 136MB (1) 16M x 64 (1) 1M x 64 None 136MB (1) 8M x 64 (1) 8M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 1M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 2M x 64 None 144MB (1) 8M x 64 (1) 8M x 64 (1) 2M x 64 152MB (1) 16M x 64 (1) 2M x 64 (1) 1M x 64 160MB (1) 16M x 64 (1) 2M x 64 (1) 2M x 64 160MB (1) 16M x 64 (1) 4M x 64 None 160MB (1) 8M x 64 (1) 8M x 64 (1) 4M x 64 168MB (1) 16M x 64 (1) 4M x 64 (1) 1M x 64 176MB (1) 16M x 64 (1) 4M x 64 (1) 2M x 64 192MB (1) 16M x 64 (1) 4M x 64 (1) 4M x 64 192MB (1) 16M x 64 (1) 8M x 64 None 192MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 200MB (1) 16M x 64 (1) 8M x 64 (1) 1M x 64 208MB (1) 16M x 64 (1) 8M x 64 (1) 2M x 64 224MB (1) 16M x 64 (1) 8M x 64 (1) 4M x 64 256MB (1) 16M x 64 (1) 8M x 64 (1) 8M x 64 384MB (1) 16M x 64 (1) 16M x 64 (1) 16M x 64 Note: Board accepts EDO & SDRAM memory. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium II CPU. CPU SPEED SELECTION CPU Clock Multiplier FREQ1 FREQ2 FREQ3 FREQ4 speed speed 233MHz 66MHz 3.5x Open Open Closed Closed 266MHz 66MHz 4x Closed Closed Open Closed 300MHz 66MHz 4.5x Open Closed Open Closed 333MHz 66MHz 5x Closed Open Open Closed FLASH BIOS SELECTION Type EP1 EP2 MXIC MX28F2000P Pins 1 & 2 closed Pins 2 & 3 closed ATMEL AT29C020 Pins 2 & 3 closed Pins 2 & 3 closed SST 29EE010 Pins 2 & 3 closed Open SST 29EE020 Pins 2 & 3 closed Pins 2 & 3 closed Intel 28F001 Pins 1 & 2 closed Pins 1 & 2 closed AMD 29F002T Pins 2 & 3 closed Pins 2 & 3 closed