ASUS COMPUTER INTERNATIONAL PCI/I-486SP3G Processor 80486SX/80486SX2/80487SX/80486DX/ODP486SX/80486DX2/80486DX4/ Pentium Overdrive Processor 25/33/50(internal)/66(internal)/100(internal)MHz Speed Chip Set Intel Max. 128MB Onboard DRAM Cache 128/256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI bus slots (3), floppy drive interface, green PC feature, IDE interface, parallel port, PS/2 mouse port, serial ports (2), SCSI interface NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port J1 Speaker J9 Serial port 2 J2 Reset switch J10 Serial port 1 J3 Turbo LED J11 Parallel port J4 Turbo switch J12 SCSI interface J5 Green PC connector J13 Floppy drive interface J6 IDE interface LED JP14 IDE interface J7 SCSI interface LED JP15 Power LED & keylock J8 32-bit PCI bus slots PC1 - PC3 USER CONFIGURABLE SETTINGS Function Jumper Position » SCSI termination enabled JP16 Open SCSI termination disabled JP16 pins 1 & 2 closed » On board SCSI controller disabled JP17 pins 1 & 2 closed On board SCSI controller enabled JP17 Open » Factory configured - do not alter JP19 Open » Flash BIOS voltage select 12 volt JP21 pins 1 & 2 closed Flash BIOS voltage select 5 volt JP21 pins 2 & 3 closed » On board mouse disabled(IRQ12) JP22 pins 1 & 2 closed On board mouse enabled (IRQ12) JP22 pins 2 & 3 closed » 80486DX4 clock multiple select 2x JP33 pins 2 & 3 closed 80486DX4 clock multiple select 3x JP33 Open 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) 512K x 36 (2) 256K x 36 6MB (2) 256K x 36 (2) 512K 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) 2M x 36 (2) 512K x 36 20MB (2) 512K x 36 (2) 2M x 36 24MB (2) 2M x 36 (2) 1M x 36 24MB (2) 1M x 36 (2) 2M x 36 DRAM CONFIGURATION (CON'T) Size Bank 0 Bank 1 32MB (2) 2M x 36 (2) 2M x 36 32MB (2) 4M x 36 NONE 34MB (2) 4M x 36 (2) 256K x 36 34MB (2) 256K x 36 (2) 4M x 36 36MB (2) 4M x 36 (2) 512K x 36 36MB (2) 512K x 36 (2) 4M x 36 40MB (2) 4M x 36 (2) 1M x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 2M x 36 (2) 4M 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) 8M x 36 (2) 256K x 36 66MB (2) 256K x 36 (2) 8M x 36 68MB (2) 8M x 36 (2) 512K x 36 68MB (2) 512K x 36 (2) 8M x 36 72MB (2) 8M x 36 (2) 1M x 36 72MB (2) 1M x 36 (2) 8M x 36 80MB (2) 8M x 36 (2) 2M x 36 80MB (2) 2M x 36 (2) 8M 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 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 512KB (4) 128K x 8 NONE (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP26 JP27 JP28 JP29 128KB pins 2 & 3 pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed closed 256KB pins 1 & 2 pins 2 & 3 pins 1 & 2 pins 2 & 3 closed closed closed closed 512KB pins 1 & 2 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed closed CPU TYPE CONFIGURATION Type JP30 JP31 JP32 Non SL CPU pins 2 & 3 pin 1 closed pin 1 closed closed SL CPU pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed Note: One jumper cap closes between pin 1 on JP31 & pin 1 on JP32. CPU TYPE CONFIGURATION Type JP34 JP35 JP36 JP38 80486SX/SX2 pins 1 & 2 pins 1 & 2 pins 2 & 3 Open closed closed closed 80487SX pins 2 & 3 pins 1 & 2 pins 2 & 3 Open closed closed closed 80486DX/DX2 pins 2 & 3 pins 1 & 2 pins 2 & 3 Open closed closed closed ODP80486SX pins 2 & 3 pins 1 & 2 pins 2 & 3 Open closed closed closed P24D pins 2 & 3 pins 2 & 3 pins 1 & 2, Closed closed closed 4 & 5 closed Pentium pins 2 & 3 pins 2 & 3 pins 1 & 2, Open Overdrive closed closed 4 & 5 closed CPU SPEED CONFIGURATION Speed JP18 JP20 25MHz pins 2 & 3 closed pins 2 & 3 closed 33MHz pins 1 & 2 closed pins 2 & 3 closed 50iMHz pins 2 & 3 closed pins 2 & 3 closed 66iMHz pins 1 & 2 closed pins 2 & 3 closed 100iMHz pins 1 & 2 closed pins 2 & 3 closed DMA CHANNEL CONFIGURATION Channel JP11 JP12 DMA 1 pins 1 & 2 closed pins 1 & 2 closed DMA 3 pins 2 & 3 closed pins 2 & 3 closed PCI INTERRUPT CONFIGURATION (IRQ 5) PCI slot JP1 JP6 Default pins 2 & 3 closed pins 2 & 3 closed PC1 pins 1 & 2 closed N/A PC2 pins 3 & 4 closed N/A PC3 N/A pins 1 & 2 closed NCR SCSI N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ 9) PCI slot JP2 JP7 Default pins 2 & 3 closed pins 2 & 3 closed PC1 pins 1 & 2 closed N/A PC2 pins 3 & 4 closed N/A PC3 N/A pins 1 & 2 closed NCR SCSI N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ 11) PCI slot JP3 JP8 Default pins 2 & 3 closed pins 2 & 3 closed PC1 pins 1 & 2 closed N/A PC2 pins 3 & 4 closed N/A PC3 N/A pins 1 & 2 closed NCR SCSI N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ 14) PCI slot JP4 JP9 Default pins 2 & 3 closed pins 2 & 3 closed PC1 pins 1 & 2 closed N/A PC2 pins 3 & 4 closed N/A PC3 N/A pins 1 & 2 closed NCR SCSI N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ 15) PCI slot JP5 JP10 Default pins 2 & 3 closed pins 2 & 3 closed PC1 pins 1 & 2 closed N/A PC2 pins 3 & 4 closed N/A PC3 N/A pins 1 & 2 closed NCR SCSI N/A pins 3 & 4 closed Note: The NCR SCSI is the on board SCSI controller.