M TECHNOLOGY, INC. M668DS STALLION Device Type Mainboard Processor Pentium II Processor Speed 233/266/300MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 1GB (EDO & SDRAM supported) Maximum Video Memory None Cache 256/512KB (located on Pentium II CPU) BIOS AMI Dimensions 305mm x 245mm I/O Options 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), Ultra SCSI interface, Ultra Wide SCSI interface, parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot, RAID slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location AGP slot AGP IR connector J2 ATX power connector ATX Reset switch J3A Parallel port CN1 Soft off power supply J3B Serial port 2 CN2 Turbo LED J3C Serial port 1 CN3 IDE interface LED J3D USB connector 2 CN4 Power LED & keylock J3E USB connector 1 CN5 Speaker J3F PS/2 mouse port CN6 Wake on LAN connector J10 Floppy drive interface CN7 CPU fan power JP8 Ultra SCSI interface CN8 CPU fan power JP11 Ultra Wide SCSI CN9 32-bit PCI slots PC1 – PC3 interface IDE interface 1 CN10 RAID slot SL1 IDE interface 2 CN11 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP3 Pins 2 & 3 closed CMOS memory clear JP3 Pins 1 & 2 closed » Modem wake up COM select COM2 JP6 Pins 1 & 2 closed Modem wake up COM select COM1 JP6 Pins 2 & 3 closed » DRAM EEC mode select non EEC JP9 Pins 2 & 3 error closed DRAM EEC mode select EEC error JP9 Pins 1 & 2 closed DIMM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 8MB (1) 1M x 64 None None None 16MB (1) 2M x 64 None None None 16MB (1) 1M x 64 (1) 1M x 64 None None 24MB (1) 2M x 64 (1) 1M x 64 None None 24MB (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 None 32MB (1) 4M x 64 None None None 32MB (1) 2M x 64 (1) 2M x 64 None None 32MB (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 40MB (1) 4M x 64 (1) 1M x 64 None None 48MB (1) 4M x 64 (1) 2M x 64 None None 48MB (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 None DIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 Bank 2 Bank 3 64MB (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64MB (1) 8M x 64 None None None 64MB (1) 4M x 64 (1) 4M x 64 None None 72MB (1) 8M x 64 (1) 1M x 64 None None 80MB (1) 8M x 64 (1) 2M x 64 None None 96MB (1) 8M x 64 (1) 4M x 64 None None 96MB (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 None 128MB (1) 16M x None None None 64 128MB (1) 8M x 64 (1) 8M x 64 None None 128MB (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 136MB (1) 16M x (1) 1M x 64 None None 64 144MB (1) 16M x (1) 2M x 64 None None 64 152MB (1) 16M x (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 64 160MB (1) 16M x (1) 4M x 64 None None 64 176MB (1) 16M x (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64 192MB (1) 16M x (1) 8M x 64 None None 64 192MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 None 224MB (1) 16M x (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 64 256MB (1) 32M x None None None 64 256MB (1) 16M x (1) 16M x None None 64 64 256MB (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 272MB (1) 16M x (1) 16M x (1) 1M x 64 (1) 1M x 64 64 64 280MB (1) 32M x (1) 1M x 64 (1) 1M x 64 (1) 1M x 64 64 288MB (1) 16M x (1) 16M x (1) 2M x 64 (1) 2M x 64 64 64 304MB (1) 32M x (1) 2M x 64 (1) 2M x 64 (1) 2M x 64 64 320MB (1) 16M x (1) 16M x (1) 4M x 64 (1) 4M x 64 64 64 320MB (1) 16M x (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 64 352MB (1) 32M x (1) 4M x 64 (1) 4M x 64 (1) 4M x 64 64 384MB (1) 16M x (1) 16M x (1) 16M x None 64 64 64 448MB (1) 32M x (1) 8M x 64 (1) 8M x 64 (1) 8M x 64 64 512MB (1) 32M x (1) 32M x None None 64 64 512MB (1) 16M x (1) 16M x (1) 16M x (1) 16M x 64 64 64 64 640MB (1) 32M x (1) 16M x (1) 16M x (1) 16M x 64 64 64 64 768MB (1) 32M x (1) 32M x (1) 32M x None 64 64 64 1024MB (1) 32M x (1) 32M x (1) 32M x (1) 32M x 64 64 64 64 Note: Board accepts EDO & SDRAM memory. Maximum SDRAM is 512MB. Maximum EDO is 1GB. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium II CPU. CPU SPEED SELECTION CPU Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6 speed speed 233MHz 66MHz 3.5x On Off Off On Off Off 266MHz 66MHz 4x Off On On On Off Off 300MHz 66MHz 4.5x Off On Off On Off Off