ACER, INC. V55LA Device Type Mainboard Processor Pentium/CX 6X86/AM K5 Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Unidentified Video Chip Set Unidentified Maximum Onboard 128MB (EDO & SDRAM supported) Memory Maximum Video Memory 2MB Cache 256/512KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options Bus mouse port, Ethernet 10BaseT connector, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, IR connector, line in, wavetable connector, audio in - CD-ROM [Image] CONNECTIONS Purpose Location Purpose Location Multimedia/ethernet CN1 Turbo LED CN19/pins 12 connector & 13 Audio in - CD-ROM CN2 Turbo CN19/pins 15 - 17 LAN connector CN5 Reset CN19/pins 19 & 20 Wavetable CN6 Video port CN21 PS/2 mouse port CN8 Fax/modem CN22 connector Audio I/O board CN9 Reset switch CN30 connector connector Floppy drive interface CN10 Line in CN31 IDE interface 2 CN11 Power LED & JP9 hard disk IDE interface 1 CN12 Disk LED JP10 Serial port 1 CN13 SMM switch JP11/pins 1 & 2 Serial port 2 CN14 Reset switch JP11/pins 2 & 3 Parallel port CN17 Additional JP11/pins 3 & reset switch 4 CPU fan connector CN18 Power switch JP14 connector Power LED & keylock CN19/pins 1 Standby power JP15 - 5 connector Speaker CN19/pins 7 External JP30 - 10 battery connector USER CONFIGURABLE SETTINGS Function Label Position BIOS type select Acer JP1 Pins 1 & 2 closed BIOS type select OEM JP1 Pins 2 & 3 closed LED for IDE/FDD JP2 Pins 1 & 2 closed LED for IDE only JP2 Pins 2 & 3 closed Allow boot block programming JP5 Pins 1 & 2 closed Normal flash BIOS operation JP5 Pins 2 & 3 closed Regulator 1 voltage JP7 Closed Regulator 2 voltages JP7 Open UPS enabled JP16 Pins 1 & 2 closed UPS disabled JP16 Pins 2 & 3 closed » Factory configured - do not JP19 Reserved alter Intel or CX 6X86 "1+4" mode JP42 Pins 1 & 2 closed CX 6X86 linear burst mode JP42 Pins 2 & 3 closed Onboard sound chip disabled SW1/5 On Onboard sound chip enabled SW1/5 Off Password bypass SW1/6 On Password check SW1/6 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 SIMM CONFIGURATION Size Bank 0 Bank 1 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 Tag SRAM Bank 0 Bank 1 256KB (2) 32K x 32 (2) 32K x 32 None 512KB (2) 32K x 32 (2) 32K x 32 (2) 32K x 32 CACHE JUMPER CONFIGURATION Size JP3 JP4 256KB Pins 1 & 2 closed Pins 1 & 2 closed 512KB Pins 1 & 2 closed Pins 2 & 3 closed 1 MB 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 CPU speed Clock speed SW1/1 SW1/2 75MHz 50MHz On On 90MHz 60MHz On Off 100MHz 66MHz Off On 120MHz 60MHz On Off 133MHz 66MHz Off On 150MHz 60MHz On Off 166MHz 66MHz Off On 200MHz 66MHz Off On CPU FREQUENCY RATIO SELECTION (INTEL) Ratio SW1/3 SW1/4 1.5x Off On 1.5x Off Off 2x On Off 2.5x On On CPU FREQUENCY RATIO SELECTION (CX 6X86) Ratio SW1/3 SW1/4 4x Off On 3x Off Off 2x On Off 1x On On CPU FREQUENCY RATIO SELECTION (AM K5) K5 SW1/3 SW1/4 1.5x Off Off 2x On On BIOS ROM TYPE SELECTION Type JP6 Flash ROM Pins 1 & 2 closed EPROM Pins 2 & 3 closed Block flash EEPROM Open CPU I/O VOLTAGE SELECTION Voltage JP43 3.5v Pins 1 & 2 closed 3.3v Pins 2 & 3 closed CPU CORE VOLTAGE SELECTION Voltage JP44 2.5v Pins 1 & 2 closed 2.8v Pins 2 & 3 closed