ACER, INC. V55LA-2 Device Type Mainboard Processor CX 6X86/CX 6X86L/CX 6X86MX/AM K5/AM K6/Pentium/Pentium MMX Processor Speed 75/90/100/120/133/150/166/180/200/233MHz Chip Set Unidentified Video Chip Set Unidentified Maximum Onboard 128MB (EDO supported) Memory Maximum Video 2MB Memory Cache 256/512/1024KB BIOS Acer Dimensions 254mm x 218mm I/O Options Floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connector, line in, wavetable connector, audio in – CD-ROM [Image] CONNECTIONS Purpose Location Purpose Location Ethernet/multimedia CN1 CPU fan power CN18 connector Audio in – CD-ROM CN2 Front panel CN19 connector USB connector CN5 VGA port CN21 Wavetable connector CN6 Modem connector CN22 PS/2 mouse port CN8 ATI media CN23 connector Audio connector CN9 Line in CN31 Floppy drive interface CN10 Green PC JP15 connector IDE interface 2 CN11 External JP30 battery IDE interface 1 CN12 IDE interface JP48/pins LED 1/3/5 Serial port 1 CN13 Power LED JP48/pins 2/4/6 Serial port 2 CN14 Power on JP50 connector Parallel port CN17 Riser slot SL1 Note: The location of CN1 is unidentified. USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not CN30 Unidentified alter BIOS type select Acer JP1 Pins 1 & 2 closed BIOS type select OEM JP1 Pins 2 & 3 closed LED select IDE LED only JP2 Pins 2 & 3 closed LED select IDE & floppy JP2 Pins 1 & 2 closed CN19/pins 19 & 20 supports JP11 Pins 1 & 2 closed green PC UPS enabled JP16 Pins 1 & 2 closed UPS disabled JP16 Pins 2 & 3 closed » Factory configured - do not JP42 Unidentified alter On board sound enabled SW2/5 Off On board sound disabled SW2/5 On Password disabled SW2/6 On Password enabled SW2/6 Off 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 Note: Board accepts EDO memory. CACHE CONFIGURATION Size Bank 0 TAG 256KB (2) 32K x 32 Unidentified 512KB (2) 64K x 32 Unidentified 1MB (2) 128K x 32 Unidentified CACHE JUMPER CONFIGURATION Size JP3 JP4 256KB Pins 1 & 2 closed Pins 1 & 2 closed 512KB Pins 1 & 2 closed Pins 2 & 3 closed 1MB Pins 2 & 3 closed Pins 2 & 3 closed 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 (CX 6X86) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 120MHz 50MHz 2x On On On Off 150MHz 60MHz 2x On Off On Off 166MHz 66MHz 2x Off On On Off CPU SPEED SELECTION (CX 6X86L) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 120MHz 50MHz 2x On On On Off 150MHz 60MHz 2x On Off On Off 166MHz 66MHz 2x Off On On Off CPU SPEED SELECTION (CX 6X86MX) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 166MHz 66MHz 2.5x Off On On On 180MHz 60MHz 3x On Off Off On 200MHz 66MHz 3x Off On Off On CPU SPEED SELECTION (AM K5) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 75MHz 50MHz 1.5x On On Off Off 90MHz 60MHz 1.5x On Off Off Off 100MHz 66MHz 1.5x Off On Off Off 120MHz 60MHz 2x On Off On Off 133MHz 66MHz 2x Off On On Off 166MHz 66MHz 2.5x Off On On On CPU SPEED SELECTION (AM K6) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 166MHz 66MHz 2.5x Off On On On 200MHz 66MHz 3x Off On Off On 233MHz 66MHz 3.5x Off On Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 75MHz 50MHz 1.5x On On Off Off 90MHz 60MHz 1.5x On Off Off Off 100MHz 66MHz 1.5x Off On Off Off 120MHz 60MHz 2x On Off On Off 133MHz 66MHz 2x Off On On Off 150MHz 60MHz 2.5x On Off On On 166MHz 66MHz 2.5x Off On On On 200MHz 66MHz 3x Off On Off On CPU SPEED SELECTION (INTEL MMX) CPU Clock Multiplier SW2/1 SW2/2 SW2/3 SW2/4 speed speed 150MHz 60MHz 2.5x On Off On On 166MHz 66MHz 2.5x Off On On On 200MHz 66MHz 3x Off On Off On CPU TYPE SELECTION Type JP7 Single voltage Closed Dual voltage Open CPU VOLTAGE SELECTION Voltage V core JP43 JP44 3.3v 2.8v Pins 2 & 3 Pins 2 & 3 closed closed 3.3v 3.2v Pins 2 & 3 Pins 1 & 2 closed closed 3.5v 2.8v Pins 1 & 2 Pins 2 & 3 closed closed 3.5v 3.2v Pins 1 & 2 Pins 1 & 2 closed closed