ACER, INC. V20-486 ALL IN ONE Processor AM486/80486SX/80486DX/80486DX2/80486DX4/P24D/P24T Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set ALI Video Chip None Set Maximum Unidentified Onboard Memory Maximum None Video Memory Cache 128/256/512KB BIOS Acer Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slot, 32-bit PCI slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Serial port 2 CN1 Reset switch CN9 pins 7 & 8 Serial port 1 CN2 Power LED & CN10 pins 1 - 5 keylock Parallel port CN3 Speaker CN10 pins 7 - 10 Floppy drive CN4 Turbo LED CN10 pins 12 & interface 13 IDE interface 1 CN5 Turbo switch CN10 pins 15 - 17 IDE interface 2 CN6 Reset switch CN10 pins 19 & 20 PS/2 mouse port CN7 32-bit PCI slots PC11 - PC3 IDE interface LED CN8 32-bit VESA local SL1 bus slot Power LED & CN9 pins 1 - keylock 4 USER CONFIGURABLE SETTINGS Function Label Position » Password enabled J1 Pins 1 & 2 closed Password disabled J1 Pins 2 & 3 closed » BIOS type select Acer J2 Pins 1 & 2 closed BIOS type select OEM J2 Pins 2 & 3 closed » Factory configured - do not alter J3 Pins 3 & 4 closed » Factory configured - do not alter J4 Closed » Factory configured - do not alter J6 Pins 2 & 3 closed » Factory configured - do not alter J7 Pins 2 & 3 closed » M5115 I/O enabled J8 Pins 1 & 2 closed M5115 I/O disabled J8 Pins 2 & 3 closed » Factory configured - do not alter J10 Pins 1 & 2 closed » Local bus IDE I/O address select J11 Pins 1 & 2 0FXH closed Local bus IDE I/O address select J11 Pins 2 & 3 07XH closed » Local bus IDE enabled J12 Pins 2 & 3 closed Local bus IDE disabled J12 Pins 1 & 2 closed » Reset switch enabled J23 Pins 1 & 2 closed Reset switch disabled J23 Pins 2 & 3 closed » Green PC connector disabled J24 Pins 1 & 2 closed Green PC connector enabled J24 Pins 2 & 3 closed DRAM CONFIGURATION Note: The maximum amount of memory is unidentified. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 128KB (4) 32K x 8 None (1) 32K 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 J13 J15 J16 128KB Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 closed closed closed 256KB Pins 2 & 3 Pins 1 & 2 Pins 2 & 3 closed closed closed 512KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed CPU SPEED SELECTION Speed JP17 JP21 25MHz Pins 1 & 5 closed Pins 2 & 3 closed 33MHz Pins 2 & 6 closed Pins 2 & 3 closed 50iMHz Pins 1 & 5 closed Pins 2 & 3 closed 66iMHz Pins 2 & 6 closed Pins 2 & 3 closed 75iMHz Pins 1 & 5 closed Pins 2 & 3 closed 100iMHz Pins 2 & 6 closed Pins 2 & 3 closed CPU TYPE SELECTION Type J9 J20 Intel S-series Pins 2 & 3 closed Pins 1 & 2 closed P24D Pins 1 & 2 closed Pins 2 & 3 closed P24T Pins 1 & 2 closed Pins 2 & 3 closed CPU TYPE SELECTION Type J26 J27 Intel Pins 1 & 2 closed Pins 1 & 2 closed AMD Pins 2 & 3 closed Pins 2 & 3 closed CPU MULTIPLIER SELECTION Multiplier J22 2x Pins 3 & 4 closed 2.5x Pins 2 & 3 closed 3x Pins 1 & 2 closed