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 Memory  | 
 128MB (EDO & SDRAM supported)  | 
| 
 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  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Multimedia/ethernet connector  | 
 CN1  | 
 Turbo LED  | 
 CN19/pins 12 & 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 connector  | 
 CN22  | 
| 
 Audio I/O board connector  | 
 CN9  | 
 Reset switch connector  | 
 CN30  | 
| 
 Floppy drive interface  | 
 CN10  | 
 Line in  | 
 CN31  | 
| 
 IDE interface 2  | 
 CN11  | 
 Power LED & hard disk  | 
 JP9  | 
| 
 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 reset switch  | 
 JP11/pins 3 & 4  | 
| 
 CPU fan connector  | 
 CN18  | 
 Power switch connector  | 
 JP14  | 
| 
 Power LED & keylock  | 
 CN19/pins 1 - 5  | 
 Standby power connector  | 
 JP15  | 
| 
 Speaker  | 
 CN19/pins 7 - 10  | 
 External battery connector  | 
 JP30  | 
| 
 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 alter  | 
 JP19  | 
 Reserved  | 
| 
 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  |