ACER, INC. ========== V-12 Processor 80486SX/80486DX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB Memory Maximum Video None Memory Cache 128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slots (3), green PC connector NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------+-----------+-------------------+------------| | External | JP6 | Green PC | JP12 pins | | battery | | connector | 15 - 17 | |---------------+-----------+-------------------+------------| | Power LED & | JP12 pins | Reset switch | JP12 pins | | keylock | 1 - 5 | | 19 & 20 | |---------------+-----------+-------------------+------------| | Speaker | JP12 pins | Chassis fan power | JP30 | | | 7 - 10 | | | |---------------+-----------+-------------------+------------| | Green PC LED | JP12 pins | 32-bit VESA local | SL1 - SL3 | | | 12 & 13 | bus slots | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |-------------------------------------+-------+--------------| |>> | Factory configured - do not | JP4 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | CMOS memory normal operation | JP5 | Open | |---+---------------------------------+-------+--------------| | | CMOS memory clear | JP5 | Pins 2 & 3 | | | | | closed | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP7 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP8 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP10 | Unidentified | | | alter | | | |---+---------------------------------+-------+--------------| |>> | Factory configured - do not | JP36 | Unidentified | | | alter | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 1MB | (4) 256K x 9 | None | |------------------+--------------------+--------------------| | 1MB | None | (4) 256K x 9 | |------------------+--------------------+--------------------| | 2MB | (4) 256K x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 4MB | (4) 1M x 9 | None | |------------------+--------------------+--------------------| | 4MB | None | (4) 1M x 9 | |------------------+--------------------+--------------------| | 5MB | (4) 256K x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 5MB | (4) 1M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 8MB | (4) 1M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 16MB | (4) 4M x 9 | None | |------------------+--------------------+--------------------| | 16MB | None | (4) 4M x 9 | |------------------+--------------------+--------------------| | 17MB | (4) 256K x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 17MB | (4) 4M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 20MB | (4) 1M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 20MB | (4) 4M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 32MB | (4) 4M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 64MB | (4) 16M x 9 | None | |------------------+--------------------+--------------------| | 65MB | (4) 16M x 9 | (4) 256K x 9 | |------------------+--------------------+--------------------| | 68MB | (4) 16M x 9 | (4) 1M x 9 | |------------------+--------------------+--------------------| | 80MB | (4) 16M x 9 | (4) 4M x 9 | |------------------+--------------------+--------------------| | 128MB | (4) 16M x 9 | (4) 16M x 9 | |------------------------------------------------------------| | Note: The location of banks 0 & 1 are unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 128KB | (4) 32K x 8 | None | |------------------+--------------------+--------------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | |------------------------------------------------------------| | Note: The location of banks 0 & 1 are unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP1 | JP2 | JP3 | |-------+-----------------+-----------------+----------------| | 128KB | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | | | closed | closed | closed | |-------+-----------------+-----------------+----------------| | 256KB | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | JP11 | |--------------------------+---------------------------------| | 25MHz | Pins 1 & 2, 3 & 4, 5 & 6 closed | |--------------------------+---------------------------------| | 33MHz | Pins 1 & 2, 3 & 4 closed | |--------------------------+---------------------------------| | 40MHz | Pins 1 & 2, 5 & 6 closed | |--------------------------+---------------------------------| | 50iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed | |--------------------------+---------------------------------| | 50MHz | Pins 1 & 2 closed | |--------------------------+---------------------------------| | 66iMHz | Pins 1 & 2, 3 & 4 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VL BUS SPEED SELECTION | |------------------------------------------------------------| | Speed | JP14 | |----------------------------+-------------------------------| | <= 33MHz | Pins 1 & 2 closed | |----------------------------+-------------------------------| | >33 MHz | Pins 3 & 4 closed | +------------------------------------------------------------+