ACER, INC. V12LC-1 Device Type Mainboard Processor Pentium Processor Speed 75/90/100MHz Chip Set Unidentified Video Chip Set Cirrus Logic Maximum Onboard Memory 128MB Maximum Video Memory 2MB Cache 256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options (backplane) bus mouse port, Ethernet 10BaseT connector, floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, PS/2 keyboard interface, serial ports (2), VGA feature connector, VGA port, riser slot [Image] CONNECTIONS Purpose Location Purpose Location RJ-45 ethernet CN1 Network/multimedia CN11 port interface PS/2 mouse port CN3 CPU fan connector CN12 Serial port 1 CN4 Hard disk LED connector CN13 Serial port 2 CN5 Hard disk LED connector CN14 Parallel port CN6 LED connector CN15 VGA port CN7 LED connector CN16 Floppy drive CN8 VGA feature connector CN17 interface IDE interface 2 CN9 Riser slot SL1 IDE interface 1 CN10 USER CONFIGURABLE SETTINGS Function Label Position » BIOS type select Acer JP1 Pins 1 & 2 closed BIOS type select OEM JP1 Pins 2 & 3 closed » Password disabled JP2 Pins 2 & 3 closed Password enabled JP2 Pins 1 & 2 closed » BIOS ROM type select flash JP3 Pins 1 & 2 closed ROM BIOS ROM type select EPROM JP3 Pins 2 & 3 closed » Onboard SMC665 enabled JP6 Pins 2 & 3 closed Onboard SMC665 disabled JP6 Pins 1 & 2 closed » Onboard GD543x enabled JP7 Pins 2 & 3 closed Onboard GD543x disabled JP7 Pins 1 & 2 closed » Enhanced IDE enabled JP9 Pins 2 & 3 closed Enhanced IDE disabled JP9 Pins 1 & 2 closed » M1451 delay disabled JP11 Pins 1 & 2 closed M1451 delay enabled JP11 Pins 2 & 3 closed » Reset function enabled JP15 Pins 2 & 3 closed SMM function enabled JP15 Pins 1 & 2 closed » Factory configured - do not JP16 Reserved alter 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 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 CACHE CONFIGURATION Note: The cache configuration is unidentified. VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 1MB (2) 256K x 16 None 2MB (2) 256K x 16 (2) 256K x 16 PARALLEL PORT DMA SELECTION Setting JP4 JP5 » DMA1 Pins 1 & 2 Pins 1 & 2 closed closed DMA3 Pins 2 & 3 Pins 2 & 3 closed closed CPU SPEED SELECTION Speed JP8 75MHz Pins 1 & 4 closed 90MHz Pins 2 & 5 closed 100MHz Pins 3 & 6 closed CPU TYPE SELECTION Type JP12 » Intel Pins 1 & 2 closed Cyrix M1 Pins 2 & 3 closed CPU MULTIPLIER SELECTION Multiplier JP14 » 1.5x Pins 1 & 2 closed 2x Pins 2 & 3 closed CPU VOLTAGE SELECTION Voltage JP13 » 3.3825v Pins 1 & 2 closed 3.5250v Pins 2 & 3 closed