CHICONY, INC. ============= CH-471A Processor CX486S/80486SX/SL80486SX/CX486S2/CX486DX/AM486DXL/80486DX/ SL80486DX/ AM486DXL2/80486DX2/SL80486DX2/P24D/80486DX4/Pentium Overdrive Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set SIS Max. 128MB Onboard DRAM Cache 32/64/128/256/512/1024KB BIOS Award Dimensions 254mm x 218mm I/O 32-bit VESA local bus slots (3), green PC connector Options NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |--------------+----------+-----------------------+----------| | Reset switch | J3 | Speaker | J8 | |--------------+----------+-----------------------+----------| | Green PC | J4 | External battery | JP19 | | connector | | | | |--------------+----------+-----------------------+----------| | Turbo switch | J5 | Green PC connector | JP38 | |--------------+----------+-----------------------+----------| | Turbo LED | J6 | Green PC connector | JP39 | |--------------+----------+-----------------------+----------| | Power LED & | J7 | 32-bit VESA local bus | SL1 - | | keylock | | slots | SL3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | CPU clock down control select | JP6 | pins 1 & 2 | | | STPCLK | | closed | |---+----------------------------------+--------+------------| | | CPU clock down control select | JP6 | pins 2 & 3 | | | SMOUT0 | | closed | |---+----------------------------------+--------+------------| |>> | CMOS memory normal operation | JP7 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | CMOS memory clear | JP7 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP17 | N/A | | | alter | | | |---+----------------------------------+--------+------------| | | CPU type select all CPU types | JP22 | Open | |---+----------------------------------+--------+------------| | | CPU type select CX486S2 only | JP22 | Closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP37 | N/A | | | alter | | | |---+----------------------------------+--------+------------| |>> | Address strobe type select | JP40 | pins 1 & 2 | | | normal | | closed | |---+----------------------------------+--------+------------| | | Address strobe type select | JP40 | pins 2 & 3 | | | delayed | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | JP45 | N/A | | | alter | | | |------------------------------------------------------------| | Note: The location of JP40 is unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+---------------+-------------+------------+----------| | 1MB | (1) 256K x 36 | NONE | NONE | NONE | |------+---------------+-------------+------------+----------| | 2MB | (1) 256K x 36 | (1) 256K x | NONE | NONE | | | | 36 | | | |------+---------------+-------------+------------+----------| | 2MB | (1) 512K x 36 | NONE | NONE | NONE | |------+---------------+-------------+------------+----------| | 4MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | NONE | | | | 36 | 36 | | |------+---------------+-------------+------------+----------| | 4MB | (1) 512K x 36 | (1) 512K x | NONE | NONE | | | | 36 | | | |------+---------------+-------------+------------+----------| | 4MB | (1) 1M x 36 | NONE | NONE | NONE | |------+---------------+-------------+------------+----------| | 5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 6MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | NONE | | | | 36 | 36 | | |------+---------------+-------------+------------+----------| | 6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 8MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | (1) 1M x | | | | 36 | 36 | 36 | |------+---------------+-------------+------------+----------| | 8MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | NONE | | | | 36 | 36 | | |------+---------------+-------------+------------+----------| | 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 8MB | (1) 2M x 36 | NONE | NONE | NONE | |------+---------------+-------------+------------+----------| | 10MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |------+---------------+-------------+------------+----------| | 12MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |------+---------------+-------------+------------+----------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE | | | | | 36 | | |------+---------------+-------------+------------+----------| | 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+---------------+-------------+------------+----------| | 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 16MB | (1) 4M x 36 | NONE | NONE | NONE | |------+---------------+-------------+------------+----------| | 17MB | (1) 256K x 36 | (1) 4M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 18MB | (1) 256K x 36 | (1) 256K x | (1) 4M x | NONE | | | | 36 | 36 | | |------+---------------+-------------+------------+----------| | 18MB | (1) 512K x 36 | (1) 4M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 20MB | (1) 512K x 36 | (1) 512K x | (1) 4M x | NONE | | | | 36 | 36 | | |------+---------------+-------------+------------+----------| | 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 24MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 4M x | | | | 36 | 36 | 36 | |------+---------------+-------------+------------+----------| | 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE | | | | | 36 | | |------+---------------+-------------+------------+----------| | 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | NONE | | | | | 36 | | |------+---------------+-------------+------------+----------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE | |------+---------------+-------------+------------+----------| | 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x | | | | | 36 | 36 | |------+---------------+-------------+------------+----------| | 32MB | (1) 8M x 36 | NONE | NONE | NONE | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |-------+-------------+------------+------------+------------| | 36MB | (1) 512K x | (1) 512K x | (1) 4M x | (1) 4M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 36MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 36MB | (1) 1M x 36 | (1) 8M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 40MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 8M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 64MB | (1) 16M x | NONE | NONE | NONE | | | 36 | | | | |-------+-------------+------------+------------+------------| | 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 65MB | (1) 256K x | (1) 16M x | NONE | NONE | | | 36 | 36 | | | |-------+-------------+------------+------------+------------| | 68MB | (1) 1M x 36 | (1) 16M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 72MB | (1) 1M x 36 | (1) 1M x | (1) 16M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 80MB | (1) 4M x 36 | (1) 16M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 80MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 96MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 96MB | (1) 4M x 36 | (1) 4M x | (1) 16M x | NONE | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 128MB | (1) 16M x | (1) 16M x | NONE | NONE | | | 36 | 36 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |------------+---------------+---------------+---------------| | 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 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) 16K x 8 | |------------+---------------+---------------+---------------| | 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 | |------------+---------------+---------------+---------------| | 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP1 | JP2 | JP3 | JP4 | JP5 | JP14 | JP16 | |--------+---------+-------+-----+-----+-----+-------+-------| | 32KB | 1 & 2, | 2 & 3 | 1 & | 1 & | 1 & | 1 & 2 | 1 & 2 | | | 3 & 4 | | 2 | 2 | 2 | | | |--------+---------+-------+-----+-----+-----+-------+-------| | 64KB | 2 & 3, | 1 & 2 | 1 & | 2 & | 1 & | 1 & 2 | 1 & 2 | | | 4 & 5 | | 2 | 3 | 2 | | | |--------+---------+-------+-----+-----+-----+-------+-------| | 128KB | 1 & 2, | 2 & 3 | 2 & | 2 & | 1 & | 1 & 2 | 2 & 3 | | | 3 & 4 | | 3 | 3 | 2 | | | |--------+---------+-------+-----+-----+-----+-------+-------| | 256KB | 2 & 3, | 1 & 2 | 2 & | 2 & | 2 & | 1 & 2 | 2 & 3 | | | 4 & 5 | | 3 | 3 | 3 | | | |--------+---------+-------+-----+-----+-----+-------+-------| | 512KB | 1 & 2, | 2 & 3 | 2 & | 2 & | 2 & | 2 & 3 | 2 & 3 | | | 3 & 4 | | 3 | 3 | 3 | | | |--------+---------+-------+-----+-----+-----+-------+-------| | 1MB | 2 & 3, | 1 & 2 | 2 & | 2 & | 2 & | 2 & 3 | 2 & 3 | | | 4 & 5 | | 3 | 3 | 3 | | | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP10 | JP11 | JP20 | JP21 | JP23 | |-------------+---------+---------+---------+--------+-------| | CX486S | 2 & 3 | 1 & 2 | 2 & 3 | Open | Open | |-------------+---------+---------+---------+--------+-------| | 80486SX | 1 & 2 | 2 & 3 | 2 & 3 | Open | Open | |-------------+---------+---------+---------+--------+-------| | SL80486SX | 1 & 2 | 2 & 3 | 2 & 3 | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | CX486DX | 2 & 3 | 1 & 2 | 1 & 2 | Closed | Open | |-------------+---------+---------+---------+--------+-------| | AM486DXL | 1 & 2 | 2 & 3 | 1 & 2 | Closed | Open | |-------------+---------+---------+---------+--------+-------| | 80486DX | 1 & 2 | 2 & 3 | 1 & 2 | Closed | Open | |-------------+---------+---------+---------+--------+-------| | SL80486DX | 1 & 2 | 2 & 3 | 1 & 2 | Closed | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | CX486DX2 | 2 & 3 | 1 & 2 | 1 & 2 | Closed | Open | |-------------+---------+---------+---------+--------+-------| | AM486DXL2 | 1 & 2 | 2 & 3 | 1 & 2 | Closed | Open | |-------------+---------+---------+---------+--------+-------| | SL80486DX2 | 1 & 2 | 2 & 3 | 1 & 2 | Closed | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | P24D | 1 & 2 | 2 & 3 | 1 & 2 | Closed | 2 & 3 | |-------------+---------+---------+---------+--------+-------| | 80486DX4 | 1 & 2 | 2 & 3 | 1 & 2 | Closed | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | P24T | 1 & 2 | 1 & 2 | 1 & 2 | Closed | Open | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP24 | JP25 | JP26 | JP27 | JP28 | |------------+-------+----------+----------+--------+--------| | CX486S | 2 & 3 | 2 & 3, 4 | 1 & 2, 3 | Open | Open | | | | & 5 | & 4 | | | |------------+-------+----------+----------+--------+--------| | 80486SX | Open | Open | Open | Open | Open | |------------+-------+----------+----------+--------+--------| | SL80486SX | 4 & 5 | 3 & 4 | 2 & 3 | Open | Open | |------------+-------+----------+----------+--------+--------| | CX486DX | 2 & 3 | 2 & 3 | 1 & 2, 3 | Open | Open | | | | | & 4 | | | |------------+-------+----------+----------+--------+--------| | AM486DXL | Open | Open | Open | Open | Open | |------------+-------+----------+----------+--------+--------| | 80486DX | Open | Open | Open | Open | Open | |------------+-------+----------+----------+--------+--------| | SL80486DX | 4 & 5 | 3 & 4 | 2 & 3 | Open | Open | |------------+-------+----------+----------+--------+--------| | CX486DX2 | 2 & 3 | 2 & 3 | 1 & 2, 3 | Open | Open | | | | | & 4 | | | |------------+-------+----------+----------+--------+--------| | AM486DXL2 | Open | Open | Open | Open | Open | |------------+-------+----------+----------+--------+--------| | SL80486DX2 | 4 & 5 | 3 & 4 | 2 & 3 | Open | Open | |------------+-------+----------+----------+--------+--------| | P24D | 4 & 5 | 1 & 2, 3 | 2 & 3 | Closed | Closed | | | | & 4 | | | | |------------+-------+----------+----------+--------+--------| | 80486DX4 | 4 & 5 | 3 & 4 | 2 & 3 | Open | Open | |------------+-------+----------+----------+--------+--------| | P24T | 1 & 2 | 3 & 4 | 2 & 3 | Open | Open | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | JP29 | JP30 | JP31 | JP33 | JP36 | |-------------+---------+---------+---------+--------+-------| | CX486S | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | 80486SX | 2 & 3 | Open | Open | Open | Open | |-------------+---------+---------+---------+--------+-------| | SL80486SX | 2 & 3 | Open | Open | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | CX486DX | 2 & 3 | 2 & 3 | 3 & 4 | 2 & 3 | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | AM486DXL | 2 & 3 | 3 & 4 | 1 & 2 | Open | 2 & 3 | |-------------+---------+---------+---------+--------+-------| | 80486DX | 2 & 3 | Open | 3 & 4 | Open | Open | |-------------+---------+---------+---------+--------+-------| | SL80486DX | 2 & 3 | Open | 3 & 4 | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | CX486DX2 | 2 & 3 | 2 & 3 | 3 & 4 | 2 & 3 | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | AM486DXL2 | 2 & 3 | 3 & 4 | 1 & 2 | Open | 2 & 3 | |-------------+---------+---------+---------+--------+-------| | SL80486DX2 | 2 & 3 | Open | 3 & 4 | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | P24D | 1 & 2 | Open | 3 & 4 | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | 80486DX4 | 2 & 3 | Open | 3 & 4 | Open | 1 & 2 | |-------------+---------+---------+---------+--------+-------| | P24T | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JP8 | JP12 | JP13 | |---------------+--------------+--------------+--------------| | 20MHz | Open | Open | Open | |---------------+--------------+--------------+--------------| | 25MHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 33MHz | Closed | Closed | Closed | |---------------+--------------+--------------+--------------| | 40MHz | Open | Closed | Closed | |---------------+--------------+--------------+--------------| | 50iMHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 50MHz | Closed | Open | Open | |---------------+--------------+--------------+--------------| | 66iMHz | Closed | Closed | Closed | |---------------+--------------+--------------+--------------| | 75iMHz | Open | Open | Closed | |---------------+--------------+--------------+--------------| | 100iMHz | Closed | Closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | JP32 | JP34 | JP35 | |---------+----------------+----------------+----------------| | 3.3v | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | | | closed | closed | closed | |---------+----------------+----------------+----------------| | 5v | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | VESA WAIT STATE CONFIGURATION | |------------------------------------------------------------| | Wait states | JP44 | |----------------------------+-------------------------------| | 0 wait states | pins 1 & 2 closed | |----------------------------+-------------------------------| | 1 wait state | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | BUS SPEED CONFIGURATION | |------------------------------------------------------------| | CPU speed | JP47 | |----------------------------+-------------------------------| | <= 33MHz | pins 1 & 2 closed | |----------------------------+-------------------------------| | > 33MHz | pins 2 & 3 closed | +------------------------------------------------------------+