ACER, INC. AX65 Device Type Mainboard Processor Pentium Pro Processor Speed 150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 512MB (EDO supported) Maximum Video Memory None Cache 256/512KB (located on Pentium Pro CPU) BIOS Award 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 interface, ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power ATX IDE interface LED JP15 connector Serial port 1 CN1 Soft off power JP23/pins 1 & 2 supply PS/2 mouse port CN2 Power LED JP23/pins 3 - 5 Parallel port CN4 Speaker JP23/pins 7 - 10 Serial port 2 CN5 Green PC LED JP23/pins 12 & 13 Chassis fan power J1 Green PC JP23/pins 15 - connector 17 Floppy drive J4 Reset switch JP23/pins 19 & interface 20 IDE interface 1 J5 32-bit PCI slots PC1 - PC5 IDE interface 2 J6 USB interface USB IR connector JP13 USER CONFIGURABLE SETTINGS Function Label Position » On board I/O enabled JP6 Pins 2 & 3 closed On board I/O disabled JP6 Pins 1 & 2 closed » Keyboard clock select ISA JP7 Pins 2 & 3 closed clock Keyboard clock select 12MHz JP7 Pins 1 & 2 closed » PS/2 mouse enabled JP8 Pins 1 & 2 closed PS/2 mouse disabled JP8 Pins 2 & 3 closed » Factory configured - do not JP9 Unidentified alter » CMOS memory normal operation JP10 Pins 2 & 3 closed CMOS memory clear JP10 Pins 1 & 2 closed Power switch type select JP14 Pins 2 & 3 closed toggle Power switch type select JP14 Pins 1 & 2, 3 & 4 momentary closed SIMM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M 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 72MB (2) 8M x 36 (2) 1M x 36 SIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 256MB (2) 32M x 36 None 264MB (2) 32M x 36 (2) 1M x 36 272MB (2) 32M x 36 (2) 2M x 36 288MB (2) 32M x 36 (2) 4M x 36 320MB (2) 32M x 36 (2) 8M x 36 384MB (2) 32M x 36 (2) 16M x 36 512MB (2) 32M x 36 (2) 32M x 36 Note: Board accepts EDO memory. CACHE CONFIGURATION Note: 256KB/512KB cache is located on the Pentium Pro CPU. CPU SPEED SELECTION CPU speed Clock Multiplier JP3 JP4 JP5 speed 150MHz 60MHz 2.5x 3 & 4 3 & 4, 5 3 & 4 & 6, 7 & 8 166MHz 66MHz 2.5x 1 & 2 3 & 4, 5 1 & 2 & 6, 7 & 8 180MHz 60MHz 3x 3 & 4 1 & 2, 3 3 & 4 & 4, 7 & 8 200MHz 66MHz 3x 1 & 2 1 & 2, 3 1 & 2 & 4, 7 & 8 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP1 » Auto detect Open 2.1v Pins 1 & 2 closed 2.2v Pins 3 & 4 closed 2.3v Pins 1 & 2, 3 & 4 closed 2.4v Pins 5 & 6 closed 2.5v Pins 1 & 2, 5 & 6 closed 2.6v Pins 3 & 4, 5 & 6 closed 2.7v Pins 1 & 2, 3 & 4, 5 & 6 closed 2.8v Pins 7 & 8 closed 2.9v Pins 1 & 2, 7 & 8 closed 3.0v Pins 3 & 4, 7 & 8 closed 3.1v Pins 1 & 2, 3 & 4, 7 & 8 closed 3.2v Pins 5 & 6, 7 & 8 closed 3.3v Pins 1 & 2, 5 & 6, 7 & 8 closed 3.4v Pins 3 & 4, 5 & 6, 7 & 8 closed 3.5v Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed FLASH BIOS SELECTION Setting JP11 JP12 » Enabled Pins 1 & 2 closed Pins 1 & 2 closed Disabled Pins 2 & 3 closed Pins 2 & 3 closed