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 +------------------------------------------------------------+ | 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 | CN22 | | | | connector | | |---------------------+----------+---------------+-----------| | PS/2 mouse port | CN8 | ATI media | CN23 | | | | connector | | |---------------------+----------+---------------+-----------| | Audio connector | CN9 | Line in | CN31 | |---------------------+----------+---------------+-----------| | Floppy drive | CN10 | Green PC | JP15 | | interface | | 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 | | | green PC | | closed | |---+---------------------------------+-------+--------------| | | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 speed|Clock speed|Multiplier|SW2/1 |SW2/2 |SW2/3 |SW2/4 | |---------+-----------+----------+------+------+------+------| | 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 closed | Pins 2 & 3 closed | |----------+---------+-------------------+-------------------| | 3.3v | 3.2v | Pins 2 & 3 closed | Pins 1 & 2 closed | |----------+---------+-------------------+-------------------| | 3.5v | 2.8v | Pins 1 & 2 closed | Pins 2 & 3 closed | |----------+---------+-------------------+-------------------| | 3.5v | 3.2v | Pins 1 & 2 closed | Pins 1 & 2 closed | +------------------------------------------------------------+