ACER V50LAN Device Type Mainboard Processor CX 6X86/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166MHz Chip Set Intel Video Chip Set ATI Maximum Onboard Memory 128MB (EDO supported) Maximum Video Memory 2MB Cache 256KB BIOS Unidentified Dimensions 330mm x 218mm I/O Options (backplane)CD-ROM interface, 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, IR connector, line in, wavetable connector, audio in - CD-ROM [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse C2 IDE interface 1 CN8 interface Serial port 1 C3 IDE interface 2 CN9 Serial port 2 C4 Floppy drive CN10 interface Parallel port C5 Power LED & CN17/pins 1-5 keylock VGA port C6 Speaker CN17/pins 7-10 Audio connector CN1 Green PC LED CN17/pins 12 & 13 ATI media connector CN2 Turbo switch CN17/pins 15-17 Audio in - CD-ROM CN3 Reset switch CN17/pins 19 & 20 Wavetable connector CN4 Hard disk LED CN20 connector Line in - internal CN5 Fan connector CN21 Fax/voice modem CN6 Riser slot SL1 line in VGA/Ethernet CN7 feature connector USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do CN12 Reserved not alter » SMM switch enabled CN16 Pins 1 & 2 closed Reset switch enabled CN16 Pins 2 & 3 closed » Factory configured - do CN16/pins 3 & 4 Reserved not alter » BIOS type select Acer JP2 Pins 1 & 2 closed BIOS type select OEM JP2 Pins 2 & 3 closed » Password disabled JP3 Pins 2 & 3 closed Password enabled JP3 Pins 1 & 2 closed » Flash ROM boot block JP4 Pins 2 & 3 closed disabled Flash ROM boot block JP4 Pins 1 & 2 closed enabled » Factory configured - do JP13 Reserved not 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 BIOS ROM TYPE SELECTION Function JP5 » Flash ROM boot block disabled Pins 3 & 4 closed Flash ROM boot block enabled Pins 2 & 3 closed Reserved Pins 1 & 2 closed CACHE CONFIGURATION Note: The cache configuration is unidentified. CACHE JUMPER CONFIGURATION Size JP7 JP8 » 256KB asynchronous or Pins 1 & 2 closed Pins 1 & 2 closed pipeline burst SRAM 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 (PENTIUM) CPU speed Clock speed JP6 JP9 75MHz 50MHz Pins 1 & 4 Pins 1 & 2 closed closed 90MHz 60MHz Pins 2 & 5 Pins 1 & 2 closed closed 100MHz 50MHz Pins 1 & 4 Pins 2 & 3 closed closed 100MHz 66MHz Pins 3 & 6 Pins 1 & 2 closed closed 120MHz 60MHz Pins 2 & 5 Pins 2 & 3 closed closed 133MHz 66MHz Pins 3 & 6 Pins 2 & 3 closed closed 150MHz 60MHz Pins 2 & 5 Pins 1 & 2 closed closed 166MHz 66MHz Pins 3 & 6 Pins 1 & 2 closed closed CPU MULTIPLIER SELECTION (INTEL) Multiplier JP10 JP11 » 1.5x Pins 1 & 2 closed Pins 1 & 2 closed 2x Pins 1 & 2 closed Pins 2 & 3 closed 2.5x Pins 2 & 3 closed Pins 1 & 2 closed 3x Pins 2 & 3 closed Pins 2 & 3 closed CPU MULTIPLIER SELECTION (AM K5) Multiplier JP10 JP11 » 3x Pins 1 & 2 closed Pins 1 & 2 closed 2x Pins 1 & 2 closed Pins 2 & 3 closed CPU MULTIPLIER SELECTION (CX 6X86) Multiplier JP10 JP11 » 3x Pins 1 & 2 closed Pins 1 & 2 closed 2x Pins 1 & 2 closed Pins 2 & 3 closed CPU VOLTAGE SELECTION Voltage JP12 » 3.38v Pins 1 & 2 closed 3.52v Pins 2 & 3 closed