ACER, INC. V12LC Device Type Mainboard Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150MHz Chip Set Unidentified Video Chip Set Cirrus Logic Maximum Onboard Memory 128MB Maximum Video Memory 2MB Cache 256KB BIOS Acer Dimensions 330mm x 218mm I/O Options Ethernet 10BaseT connector, floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot [Image] CONNECTIONS Purpose Location Purpose Location VGA port C1 Power LED & keylock CN6/pins 1 - 5 Parallel port C2 Speaker CN6/pins 7 - 10 Serial port 2 C3 Turbo LED CN6/pins 12 & 13 Serial port 1 C4 Turbo switch CN6/pins 15 - 17 PS/2 mouse port C5 Reset switch CN6/pins 19 & 20 Ethernet C6 Power LED & keylock CN7/pins 1 - 10BaseT 4 connector VGA feature CN1 Reset switch CN7/pins 6 & connector 7 IDE interface 1 CN2 IDE interface LED CN8 IDE interface 2 CN3 Network/multimedia CN10 interface Floppy drive CN4 Riser slot SL1 interface USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not CN9 Unidentified alter » 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 type select flash JP3 Pins 2 & 3 closed BIOS type select EPROM JP3 Pins 1 & 2 closed » On board I/O enabled JP6 Pins 2 & 3 closed On board I/O disabled JP6 Pins 1 & 2 closed » Reset function JP15 Pins 2 & 3 closed Suspend mode function JP15 Pins 1 & 2 closed » Detects hard drive access only JP19 Open Detects hard drives & floppy JP19 Closed drive accesses » Flash BIOS write protect JP20 Pins 2 & 3 closed disabled Flash BIOS write protect JP20 Pins 1 & 2 closed enabled 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 SIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 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 Size Bank 0 256KB (8) 32K x 8 VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 1MB (2) 256K x 16 None 2MB (2) 256K x 16 (2) 256K x 16 CPU SPEED SELECTION Speed JP8 75MHz Pins 1 & 4 closed 90MHz Pins 2 & 5 closed 100MHz Pins 3 & 6 closed 120MHz Pins 2 & 5 closed 133MHz Pins 3 & 6 closed 150MHz Pins 2 & 5 closed CPU TYPE SELECTION Type JP12 AM K5 Pins 1 & 2 closed CX M1 Pins 2 & 3 closed Intel Pins 1 & 2 closed CPU MULTIPLIER SELECTION (CX M1) Multiplier JP14 JP18 1.5x, 2x, 3x Pins 1 & 2 closed Pins 1 & 2 closed 1x Pins 2 & 3 closed Pins 1 & 2 closed 1.5x, 2x, 3x Pins 1 & 2 closed Pins 2 & 3 closed 1x Pins 2 & 3 closed Pins 2 & 3 closed CPU MULTIPLIER SELECTION (AM K5) Multiplier JP14 JP18 1.5x, 2x, 3x Pins 1 & 2 closed Pins 1 & 2 closed 1x Pins 2 & 3 closed Pins 1 & 2 closed 1.5x, 2x, 3x Pins 1 & 2 closed Pins 2 & 3 closed 1x Pins 2 & 3 closed Pins 2 & 3 closed CPU MULTIPLIER SELECTION (INTEL) Multiplier JP14 JP18 1.5x Pins 1 & 2 closed Pins 1 & 2 closed 2x Pins 2 & 3 closed Pins 1 & 2 closed 3x Pins 1 & 2 closed Pins 2 & 3 closed 2.5x Pins 2 & 3 closed Pins 2 & 3 closed CPU VOLTAGE SELECTION Voltage JP13 » 3.3v Pins 1 & 2 closed 3.5v Pins 2 & 3 closed CN1 CONNECTOR SELECTION Setting JP16 JP17 » Feature connector Pins 1 & 2 closed Pins 1 & 2 closed I2C connector Pins 2 & 3 closed Pins 2 & 3 closed