MICROMEDIA TECHNOLOGIES, INC. PCI 486 Processor 80486SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 25/33/50(internal)/66(internal)MHz Chip Set Intel Max. Onboard DRAM 128MB Cache 64/128/256/512KB BIOS Phoenix Dimensions 330mm x 218mm I/O Options PCI local bus slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Hard drive LED CN1 SCSI connector J25 Speaker CN2 PCI local bus PCI1 Reset switch CN3 PCI local bus PCI2 Power LED & keylock CN4 PCI local bus PCI3 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation CN5 Pins 1 & 2 closed CMOS memory clear CN5 Pins 2 & 3 closed » Factory configured - do not J12 N/A alter » SCSI interrupt select IRQ11 J14 Pins 2 & 3 closed SCSI interrupt select IRQ9 J14 Pins 1 & 2 closed » Factory configured - do not J15 N/A alter » Factory configured - do not J16 N/A alter » Cache enabled J17 Pins 2 & 3 closed Cache disabled J17 Pins 1 & 2 closed » SCSI terminator term power J24 Closed source from system SCSI terminator term power J24 Open source from peripheral CPU TYPE CONFIGURATION Type KC1 KC2 KC3 KC4 KC5 80486SX Open Open Open Closed Open 80487SX Open Closed Closed Open Closed 80486DX Closed Open Closed Open Closed ODP486SX Open Closed Closed Open Closed 80486DX2 Closed Open Closed Open Closed Pentium Open Closed Closed Open Closed Overdrive CACHE JUMPER CONFIGURATION Size J5 J6 J7 J11 J18 J19 64KB Open Open Open Pins 2 Pins 1 Pins 1 & 3 & 2 & 2 128KB Open Closed Open Pins 1 Pins 2 Pins 1 & 2 & 3 & 2 256KB Open Closed Closed Pins 1 Pins 1 Pins 2 & 2 & 2 & 3 512KB Closed Closed Closed Pins 1 Pins 2 Pins 2 & 2 & 3 & 3 Note:Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed J13 J103 25MHz Pins 1 & 2 closed Open 33MHz Pins 2 & 3 closed Closed 50i MHz Pins 1 & 2 closed Open 66i MHz Pins 2 & 3 closed Closed PCI INTERRUPT SELECTION PCI1 J36A J39A J40A J42A J43A J113A IRQ3 Open Open Open Open Open Closed IRQ10 Open Closed Open Open Open Open IRQ11 Open Open Closed Open Open Open IRQ14 Open Open Open Closed Open Open IRQ15 Open Open Open Open Closed Open IRQ25 Closed Open Open Open Open Open PCI INTERRUPT SELECTION PCI2 J36B J39B J40B J42B J43B J113B IRQ3 Open Open Open Open Open Closed IRQ10 Open Closed Open Open Open Open IRQ11 Open Open Closed Open Open Open IRQ14 Open Open Open Closed Open Open IRQ15 Open Open Open Open Closed Open IRQ25 Closed Open Open Open Open Open PCI INTERRUPT SELECTION PCI3 J36C J39C J40C J42C J43C J113C IRQ3 Open Open Open Open Open Closed IRQ10 Open Closed Open Open Open Open IRQ11 Open Open Closed Open Open Open IRQ14 Open Open Open Closed Open Open IRQ15 Open Open Open Open Closed Open IRQ25 Closed Open Open Open Open Open LOCAL BUS MASTER SELECTION Master J104 J105 » PCI 3 Pins 2 & 3 closed Pins 2 & 3 closed PCI 1 Pins 1 & 2 closed Pins 1 & 2 closed LOCAL BUS MASTER SELECTION Master J106 J107 » SCSI Pins 2 & 3 closed Pins 2 & 3 closed PCI 2 Pins 1 & 2 closed Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 2MB (2) 256K x 36 NONE 4MB (2) 256K x 36 (2) 256K x 36 4MB (2) 512K x 36 NONE 6MB (2) 256K x 36 (2) 512K x 36 6MB (2) 512K x 36 (2) 256K x 36 8MB (2) 512K x 36 (2) 512K x 36 8MB (2) 1M x 36 NONE 10MB (2) 256K x 36 (2) 1M x 36 10MB (2) 1M x 36 (2) 256K x 36 12MB (2) 512K x 36 (2) 1M x 36 12MB (2) 1M x 36 (2) 512K x 36 16MB (2) 1M x 36 (2) 1M x 36 16MB (2) 2M x 36 NONE 18MB (2) 256K x 36 (2) 2M x 36 18MB (2) 2M x 36 (2) 256K x 36 20MB (2) 512K x 36 (2) 2M x 36 20MB (2) 2M x 36 (2) 512K x 36 24MB (2) 1M x 36 (2) 2M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 2M x 36 (2) 2M x 36 32MB (2) 4M x 36 NONE 34MB (2) 256K x 36 (2) 4M x 36 34MB (2) 4M x 36 (2) 256K x 36 36MB (2) 512K x 36 (2) 4M x 36 36MB (2) 4M x 36 (2) 512K x 36 40MB (2) 1M x 36 (2) 4M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 2M x 36 (2) 4M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 4M x 36 (2) 4M x 36 64MB (2) 8M x 36 NONE 66MB (2) 256K x 36 (2) 8M x 36 66MB (2) 8M x 36 (2) 256K x 36 68MB (2) 512K x 36 (2) 8M x 36 68MB (2) 8M x 36 (2) 512K x 36 72MB (2) 1M x 36 (2) 8M x 36 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 2M x 36 (2) 8M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 4M x 36 (2) 8M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36