ASUS COMPUTER INTERNATIONAL PVI-486AP4 Processor CX486S/80486SX/80487SX/80486SX2/CX486DX/80486DX/ODP486SX/ CX486DX2/CX486DX2-V/80486DX2/80486DX4/Pentium Overdrive Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Intel Max. 128MB Onboard DRAM Cache 128/256/512KB BIOS Award Dimensions 330mm x 218mm I/O 32-bit PCI bus slots (4), 32-bit VESA local bus slot, green PC Options feature, IDE interface, PS/2 mouse connector NPU None Options [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse connector J1 Speaker J7 IDE interface J2 Power LED & keylock J8 Green PC connector J3 IDE interface LED JP40 Turbo switch J4 32-bit PCI slots PC1 - PC4 Turbo LED J5 32-bit VESA Local bus SL1 slots Reset switch J6 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select monochrome/VGA JP1 pins 1 & 2 closed Monitor type select CGA JP1 pins 2 & 3 closed » Flash BIOS voltage select 5 volt JP12 pins 2 & 3 closed Flash BIOS voltage select 12 volt JP12 pins 1 & 2 closed » Flash BIOS write protect enabled JP13 pins 1 & 2 closed Flash BIOS write protect disabled JP13 pins 2 & 3 closed » Cache type select write through JP17 Open Cache type select write back JP17 pins 1 & 2 closed » On board mouse enabled JP28 pins 2 & 3 closed On board mouse disabled JP28 pins 1 & 2 closed » IDE controller IRQ select IRQ14 JP29 pins 1 & 2 closed IDE controller IRQ select IRQ15 JP29 pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 2MB (1) 512K x NONE NONE NONE 36 4MB (1) 512K x (1) 512K x NONE NONE 36 36 4MB (1) 1M x 36 NONE NONE NONE 6MB (1) 1M x 36 NONE (1) 512K x NONE 36 8MB (1) 1M x 36 (1) 1M x 36 NONE NONE 8MB (1) 2M x 36 NONE NONE NONE 12MB (1) 512K x (1) 512K x (1) 1M x 36 (1) 1M x 36 36 36 16MB (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 (1) 1M x 36 16MB (1) 2M x 36 (1) 2M x 36 NONE NONE 16MB (1) 4M x 36 NONE NONE NONE 24MB (1) 4M x 36 NONE (1) 2M x 36 NONE 32MB (1) 4M x 36 (1) 4M x 36 NONE NONE 32MB (1) 8M x 36 NONE NONE NONE 48MB (1) 2M x 36 (1) 2M x 36 (1) 4M x 36 (1) 4M x 36 48MB (1) 8M x 36 NONE (1) 4M x 36 NONE 64MB (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 NONE NONE 96MB (1) 8M x 36 (1) 8M x 36 (1) 4M x 36 (1) 4M x 36 128MB (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 NONE (2) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (2) 32K x 8 256KB (4) 64K x 8 NONE (2) 32K x 8 512KB (4) 64K x 8 (4) 64K x 8 (2) 32K x 8 512KB (4) 128K x 8 NONE (2) 32K x 8 CACHE JUMPER CONFIGURATION Size JP20 JP21 128KB pins 1 & 2 closed pins 1 & 2 closed 256KB pins 1 & 2 closed pins 2 & 3 closed 256KB pins 1 & 2 closed pins 1 & 2, 3 & 4 closed 512KB pins 2 & 3 closed pins 2 & 3, 4 & 5 closed 512KB pins 2 & 3 closed pins 1 & 2, 3 & 4 closed CPU TYPE CONFIGURATION Type JP18 JP19 CX486S pins 2 & 3, 4 & 5 pins 1 & 2, 4 & 5 closed closed AMD486SX/SX2 pins 1 & 2, 4 & 5 pins 4 & 5 closed closed 80486SX/SX2 pins 1 & 2, 4 & 5 pins 1 & 2, 4 & 5 closed closed 80487SX pins 1 & 2, 4 & 5 pins 1 & 2, 3 & 4 closed closed SL 80486SX/SX2 pins 2 & 3, 4 & 5 pins 1 & 2, 4 & 5 closed closed CX486DX/DX2/DX2-V pins 1 & 2, 4 & 5 pins 1 & 2, 3 & 4 closed closed AMD486DX/DX2 pins 1 & 2, 4 & 5 pins 3 & 4 closed closed 80486DX/DX2 pins 1 & 2, 4 & 5 pins 1 & 2, 3 & 4 closed closed SL 80486DX/DX2 pins 2 & 3, 4 & 5 pins 1 & 2, 3 & 4 closed closed 80486DX4 pins 2 & 3, 4 & 5 pins 1 & 2, 3 & 4 closed closed Overdrive pins 1 & 2, 4 & 5 pins 1 & 2, 3 & 4 closed closed SL Overdrive pins 2 & 3, 4 & 5 pins 1 & 2, 3 & 4 closed closed Pentium Overdrive pins 2 & 3, 5 & 6 pins 1 & 2, 3 & 4 closed closed CPU SPEED CONFIGURATION Speed JP25 JP26 25MHz pins 2 & 3 closed pins 1 & 2 closed 33MHz pins 1 & 2 closed pins 2 & 3 closed 50iMHz pins 2 & 3 closed pins 1 & 2 closed 66iMHz pins 1 & 2 closed pins 2 & 3 closed 75iMHz pins 2 & 3 closed pins 1 & 2 closed 100iMHz pins 1 & 2 closed pins 2 & 3 closed CPU CLOCK SPEED CONFIGURATION (80846DX4) Speed JP17 2x pins 4 & 5 closed 2.5x pins 3 & 4 closed 3x Open Note: The use of JP17 depends on which CPU is installed. The above setting is used only if a DX4 is installed. Otherwise, use JP17 setting located in the user configurable table. BUS SPEED CONFIGURATION CPU speed JP22 <=33MHz pins 1 & 2 closed > 33MHz pins 2 & 3 closed CPU VOLTAGE CONFIGURATION Voltage JP30 JP31 3.3 volt (Intel pins 1 & 2 closed pins 2 & 3 closed 80486DX4) 3.6 volt (Cyrix DX2-V) pins 2 & 3 closed pins 1 & 2 closed VESA WAIT STATE CONFIGURATION Wait states JP23 0 wait states pins 1 & 2 closed 1 wait state pins 2 & 3 closed PCI INTERRUPT CONFIGURATION (IRQ5) PCI slot JP2 JP11 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 PC4 N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ9) PCI slot JP3 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 PC4 N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ11) 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 PC4 N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ14) PCI slot JP5 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 PC4 N/A pins 3 & 4 closed PCI INTERRUPT CONFIGURATION (IRQ15) PCI slot JP6 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 PC4 N/A pins 3 & 4 closed