FIRST INTERNATIONAL COMPUTER, INC. ================================== 486-GAC-V Processor 80486SX/CX486S/SL enhanced/80486DX 80486DX2/80486DX4/Pentium Overdrive Processor 25/33/40/50(internal)/66(internal)/100(internal)MHz Speed Chip Set VIA Max. 64MB Onboard DRAM Cache 64/128/256KB BIOS Award Dimensions 330mm x 218mm I/O 3.3V Daughter board connector, 32-bit VESA local Options bus slot, floppy drive interface,IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | PS/2 keyboard | CN1 | Green power | J3 | | connector | | supply connector | | |-------------------+----------+------------------+----------| | PS/2 mouse | CN2 | IDE interface | J6 | | connector | | LED | | |-------------------+----------+------------------+----------| | Serial port 1 | CN3 | Turbo switch | J11 | |-------------------+----------+------------------+----------| | Serial port 2 | CN4 | Turbo LED | J12 | |-------------------+----------+------------------+----------| | Parallel port | CN5 | Reset switch | J13 | |-------------------+----------+------------------+----------| | VGA port | CN6 | Speaker | J14 | |-------------------+----------+------------------+----------| | Video feature | CN8 | Power LED & | J15 | | connector (8514A) | | keylock | | |-------------------+----------+------------------+----------| | Floppy drive | CN9 | ISA Bus slot | SL1 | | interface | | | | |-------------------+----------+------------------+----------| | IDE interface | CN10 | 32-bit VESA | SL2 | | | | Local bus slot | | |-------------------+----------+------------------+----------| | 3.3V Daughter | CN11 | | | | board connector | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | I/O Channel not set to Adaptec | J1 | Open | | | (transfer rate < 5.7 MB/s) | | | |---+----------------------------------+--------+------------| | | I/O Channel set to Adaptec ISA | J1 | Closed | | | Master (1542B/C SCSI) | | | |---+----------------------------------+--------+------------| |>> | IDE not connected to BALE signal | J4 | Open | |---+----------------------------------+--------+------------| | | IDE connected to BALE signal | J4 | Closed | |---+----------------------------------+--------+------------| |>> | IDE not connected to IOCHRDY | J5 | Open | | | signal | | | |---+----------------------------------+--------+------------| | | IDE connected to IOCHRDY signal | J5 | Closed | |---+----------------------------------+--------+------------| |>> | Password enabled | J7 | Open | |---+----------------------------------+--------+------------| | | Password clear | J7 | Closed | |---+----------------------------------+--------+------------| |>> | Factory configured do not alter | J9 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Pentium Overdrive write-back | JC7 | Closed | |---+----------------------------------+--------+------------| | | Pentium Overdrive write-through | JC7 | Open | |---+----------------------------------+--------+------------| |>> | Local IDE enabled | JD3 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Local IDE disabled | JD3 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | NS87312 I/O port address - index | JN6 | pins 1 & 2 | | | port 26eh, data port 26Fh | | closed | |---+----------------------------------+--------+------------| | | NS87312 I/O port address - index | JN6 | pins 2 & 3 | | | port 398h, data port 399h | | closed | |---+----------------------------------+--------+------------| |>> | IRQ9 disabled | JV1 | Open | |---+----------------------------------+--------+------------| | | IRQ9 enabled | JV1 | Closed | |---+----------------------------------+--------+------------| |>> | Onboard VGA enabled | JV2 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | Onboard VGA disabled | JV2 | pins 1 & 2 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 1MB | (1) 256K x | NONE | NONE | NONE | | | 36 | | | | |------+-------------+-------------+------------+------------| | 2MB | (1) 256K x | (1) 256K x | NONE | NONE | | | 36 | 36 | | | |------+-------------+-------------+------------+------------| | 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE | | | 36 | 36 | 36 | | |------+-------------+-------------+------------+------------| | 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 4MB | (1) 1M x 36 | NONE | NONE | NONE | |------+-------------+-------------+------------+------------| | 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE | | | | 36 | | | |------+-------------+-------------+------------+------------| | 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 12MB | NONE | (1) 1M x 36 | (1) 2M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 12MB | NONE | NONE | (1) 1M x | (1) 2M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | (1) 4M x 36 | NONE | NONE | NONE | |------+-------------+-------------+------------+------------| | 16MB | NONE | (1) 1M x 36 | (1) 2M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 16MB | NONE | NONE | (1) 2M x | (1) 2M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE | | | | 36 | | | |------+-------------+-------------+------------+------------| | 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE | |------+-------------+-------------+------------+------------| | 32MB | NONE | NONE | (1) 8M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 32MB | NONE | NONE | NONE | (1) 8M x | | | | | | 36 | |------+-------------+-------------+------------+------------| | 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 48MB | NONE | (1) 4M x 36 | (1) 8M x | NONE | | | | | 36 | | |------+-------------+-------------+------------+------------| | 48MB | NONE | NONE | (1) 4M x | (1) 8M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG (M9) | |------------+---------------+---------------+---------------| | 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JS1 | JS2 | JS3 | |-------+-----------------+-----------------+----------------| | 64KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | |-------+-----------------+-----------------+----------------| | 128KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | |-------+-----------------+-----------------+----------------| | 256KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA WAIT STATE/BUS SPEED CONFIGURATION | |------------------------------------------------------------| | CPU speed | Wait states | JL1 | JL2 | |-----------+---------------+-------------------+------------| | < 33MHz | 0 wait states | pins 1 & 2 closed | pins 1 & 2 | | | | | closed | |-----------+---------------+-------------------+------------| | > 33MHz | 1 wait state | pins 2 & 3 closed | pins 2 & 3 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JC1 | JC2 | JC3 | JC4 | |------------+------------+------------+--------+------------| | 80486SX | pins 2 & 3 | pins 2 & 3 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | Cx486S | pins 2 & 3 | pins 2 & 3 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | Cx487S | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | Cx486DX | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | AM486DXL | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | 80486DX | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | 80486DX2 | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | 80486DX4 | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 | | | closed | closed | | closed | |------------+------------+------------+--------+------------| | Pentium | pins 1 & 2 | pins 1 & 2 | Closed | pins 2 & 3 | | Overdrive | closed | closed | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CONTINUED) | |------------------------------------------------------------| | Type | JC5 | RC1 | RC2 | RC3 | |----------+--------+--------------+------------+------------| | 80486SX | Open | Not | Not | Not | | | | Installed | Installed | Installed | |----------+--------+--------------+------------+------------| | Cx486S | Open | Not | Installed | Not | | | | Installed | | Installed | |----------+--------+--------------+------------+------------| | Cx486DX | Open | Not | Installed | Not | | | | Installed | | Installed | |----------+--------+--------------+------------+------------| | AM486DXL | Open | Not | Not | Installed | | | | Installed | Installed | | |----------+--------+--------------+------------+------------| | 80486DX | Open | Not | Not | Not | | | | Installed | Installed | Installed | |----------+--------+--------------+------------+------------| | 80486DX2 | Open | Not | Not | Not | | | | Installed | Installed | Installed | |----------+--------+--------------+------------+------------| | 80486DX4 | Closed | Installed | Not | Not | | | | | Installed | Installed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION (CONTINUED) | |------------------------------------------------------------| | Type | J2 | J10 | JX3 | JX4 | JX5 | |-------------+---------+---------+--------+--------+--------| | Regular CPU | pins 1 | pins 1 | N/A | Open | pins 1 | | | & 2 | & 2 | | | & 2 | |-------------+---------+---------+--------+--------+--------| | SL-enhanced | pins 2 | pins 2 | pins 1 | pins 1 | pins 2 | | | & 3 | & 3 | & 2 | & 2 | & 3 | |-------------+---------+---------+--------+--------+--------| | Cyrix CPU | N/A | N/A | pins 2 | pins 2 | N/A | | | | | & 3 | & 3 | | |------------------------------------------------------------| | Note:JX3 may not be available on some mainboards. | |------------------------------------------------------------| | Pins designated are in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED (VT8225N) CONFIGURATION | |------------------------------------------------------------| | Clock | JK1 | JK2 | JK3 | JK4 | |--------+------------+------------+------------+------------| | 25 MHz | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | | | closed | closed | closed | closed | |--------+------------+------------+------------+------------| | 33 MHz | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | closed | |--------+------------+------------+------------+------------| | 40 MHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | | | closed | closed | closed | closed | |--------+------------+------------+------------+------------| | 50iMHz | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | | | closed | closed | closed | closed | |--------+------------+------------+------------+------------| | 50 MHz | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 | | | closed | closed | closed | closed | |--------+------------+------------+------------+------------| | 66iMHz | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DX4 INTERNAL CLOCK CONFIGURATION | |------------------------------------------------------------| | Speed | JC6 | |------------------------------+-----------------------------| |>> | Internal 3 X | Open | |---+--------------------------+-----------------------------| | | Internal 2.5 X | pins 1 & 2 closed | |---+--------------------------+-----------------------------| | | Internal 2 X | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | IDE SPEED SELECT CONFIGURATION (PDC 20230 ONLY) | |------------------------------------------------------------| | IDE Type | JD1 | JD2 | |------------------+--------------------+--------------------| |>> | Normal | pins 2 & 3 closed | pins 2 & 3 closed | |---+--------------+--------------------+--------------------| | | Fast | pins 1 & 2 closed | pins 1 & 2 closed | |---+--------------+--------------------+--------------------| | | Medium | pins 2 & 3 closed | pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | PRINTER PORT DIRECTION CONFIGURATION | |------------------------------------------------------------| | Direction | JN7 | JN8 | |--------------------+-------------------+-------------------| |>> | Output only | pins 1 & 2 closed | pins 2 & 3 closed | |---+----------------+-------------------+-------------------| | | Input only | pins 1 & 2 closed | pins 1 & 2 closed | |---+----------------+-------------------+-------------------| | | Bi-directional | pins 2 & 3 closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 1MB | (2) 512K x 4 | NONE | |------------------+--------------------+--------------------| | 2MB | (2) 512K x 4 | (2) 512K x 4 | +------------------------------------------------------------+