ACER, INC. AP53 (Rev. 3.0) Processor Pentium/Pentium MMX/AMK5/AMK6/CX 6x86 Processor Speed 75/90/100/120/133/150/166/200/233MHz Chip Set Intel Video Chip Set None Maximum Onboard 512MB Memory Maximum Video None Memory Cache 256/512KB BIOS AMI Dimensions 250mm x 220mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, USB connector, IR connector, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse CN4 IR connector CN14 interface USB connector CN5 CPU fan connector CN15 Serial port 2 CN6 Keylock CN16 Pins 1&2 Serial port 1 CN7 Power LED CN16 Pins 3-5 Floppy drive CN8 Speaker CN16 Pins 7-10 interface Parallel port CN9 Green PC LED CN16 Pins 12&13 IDE interface 1 CN10 Suspend switch CN16 Pins 15-17 IDE interface 2 CN11 Reset switch CN16 Pins 19&20 IDE LED connector CN12 32-bit PCI slots PCI1-4 USER CONFIGURABLE SETTINGS Function Label Position » PS/2 mouse IRQ12 enabled JP4 Closed PS/2 mouse IRQ12 disabled JP4 Open » CMOS memory normal operation JP5 Pins 1 & 2 closed CMOS memory clear JP5 Pins 2 & 3 closed » On board I/O controller enabled JP8 Pins 1 & 2 closed On board I/O controller disabled JP8 Pins 2 & 3 closed » I/O voltage set at 3.43V JP12 Pins 1 & 2 closed I/O Voltage set at 3.52V JP12 Pins 3 & 4 closed Factory configured - do not JP1301 Pins 2 & 3 alter closed Factory configured - do not JP1302 Pins 2 & 3 alter closed DRAM CONFIGURATION Size Bank 0 Bank 1 4MB (2) 512K x 36 None 8MB (2) 1M x 36 None 8MB (2) 512K x 36 (2) 512K x 36 12MB (2) 512K x 36 (2) 1M x 36 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 20MB (2) 512K x 36 (2) 2M x 36 24MB (2) 1M x 36 (2) 2M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 36MB (2) 512K x 36 (2) 4M x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 68MB (2) 512K x 36 (2) 8M x 36 72MB (2) 1M x 36 (2) 8M x 36 DRAM CONFIGURATION (CONT.) Size Bank 0 Bank 1 80MB (2) 2M x 36 (2) 8M x 36 96MB (2) 4M x 36 (2) 8M x 36 128MB (2) 8M x 36 (2) 8M x 36 128MB (2) 16M x 36 None 136MB (2) 1M x 36 (2) 16M x 36 144MB (2) 2M x 36 (2) 16M x 36 160MB (2) 4M x 36 (2) 16M x 36 256MB (2) 16M x 36 (2) 16M x 36 256MB (2) 32M x 36 None 264MB (2) 1M x 36 (2) 32M x 36 272MB (2) 2M x 36 (2) 32M x 36 288MB (2) 4M x 36 (2) 32M x 36 320MB (2) 8M x 36 (2) 32M x 36 384MB (2) 16M x 36 (2) 32M x 36 512MB (2) 32M x 36 (2) 32M x 36 CACHE CONFIGURATION Size Bank 0 256KB (2) 32K x 32 512KB (2) 64K x 32 CPU SPEED SELECTION (INTEL) Speed Clock Speed Multiplier JP10 JP1 75MHz 50MHz 1.5x 1 & 2, 3 & 4 1 & 2, 3 & 4 90MHz 60MHz 1.5x 1 & 2, 3 & 4 1 & 2 100MHz 66MHz 1.5x 1 & 2 3 & 4 120MHz 60MHz 2x 3 & 4, 5 & 6 1 & 2 133MHz 66MHz 2x 3 & 4, 5 & 6 3 & 4 150MHz 60 MHz 2.5x 5 & 6, 7 & 8 1 & 2 166MHz 66MHz 2.5x 5 & 6, 7 & 8 3 & 4 200MHz 66MHz 3x 1 & 2, 7 & 8 3 & 4 Note : Pins designated should be in the closed position CPU SPEED SELECTION (INTEL MMX) Speed Clock Speed Multiplier JP10 JP1 150MHz 60MHz 2.5x 5 & 6, 7 & 8 1 & 2 166MHz 66MHz 2.5x 5 & 6, 7 & 8 3 & 4 200MHz 66MHz 3x 1 & 2, 7 & 8 3 & 4 233MHz 66MHz 3.5x 1 & 2, 3 & 4 3 & 4 Note : Pins designated should be in the closed position CPU SPEED SELECTION (CX 6X86) Speed Clock Multiplier JP10 JP1 Speed 120MHz 50MHz 2x 3 & 4, 5 & 6 1 & 2, 3 & 4 133MHz 55MHz 2x 3 & 4, 5 & 6 All open 150MHz 60MHz 2x 3 & 4, 5 & 6 1 & 2 166MHz 66MHz 2x 3 & 4, 5 & 6 3 & 4 Note : Pins designated should be in the closed position CPU SPEED SELECTION (AMK5) Speed Clock Speed Multiplier JP10 JP1 75MHz 50MHz 1.5x 1 & 2, 3 & 4 1 & 2, 3 & 4 90MHz 60MHz 1.5x 1 & 2, 3 & 4 1 & 2 100MHz 66MHz 1.5x 1 & 2, 3 & 4 3 & 4 120MHz 60MHz 1.5x 1 & 2, 3 & 4 1 & 2 133MHz 66MHz 1.5x 1 & 2, 3 & 4 3 & 4 166MHz 66MHz 1.75x 5 & 6, 7 & 8 3 & 4 Note : Pins designated should be in the closed position CPU SPEED SELECTION (AMK6) Speed Clock Speed Multiplier JP10 JP1 166MHz 66MHz 2.5x 5 & 5, 7 & 8 3 & 4 200MHz 66MHz 3x 1 & 2, 7 & 8 3 & 4 233MHz 66MHz 3.5x 1 & 2, 3 & 4 3 & 4 Note : Pins designated should be in the closed position CPU VOLTAGE SELECTION (SINGLE) Voltage JP11 2.5V Pins 5 & 6 closed 2.8V Pins 9 & 10 closed 2.9V Pins 11 & 12 closed 3.2V Pins 7 & 8 closed 3.45V Pins 1 & 2 closed 3.52V Pins 3 & 4 closed CPU VOLTAGE SELECTION (DUAL) Voltage JP11 JP12 JP3 JP13 2.8V 9 & 10 1 & 2 All open 1 & 2, 3 & 4 2.9V 11 & 12 1 & 2 All open 1 & 2, 3 & 4 3.2V 7 & 8 1 & 2 All open 1 & 2, 3 & 4 3.43V 1 & 2 1 & 2 1 & 2, 3 & 4 All open 3.52V 3 & 4 1 & 2 1 & 2, 3 & 4 All open Note : Pins designated should be in the closed position