CHAINTECH COMPUTER COMPANY, LTD. ================================ 4SPM5.2 Processor 80486SX/ODP486/UMCU5S/CX486DX/AM486DX/80486DX/ CX486DX2/CX486DX2V/AM486DX2/80846DX2/CX486DX4/AM486DX4/80486DX4/P24D/P24T/CX5X86/AMK5 Processor 25/33/40/50(internal)/50/63(internal)/66(internal)/75(internal)/ Speed 80(internal)/83(internal)/100(internal)/120(internal)/133(internal)MHz Chip Set Unidentified Video Chip None Set Maximum 128MB (EDO supported) Onboard Memory Maximum None Video Memory Cache 128/256/512/1024KB BIOS Award Dimensions 250mm x 220mm I/O 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), Options parallel port, serial ports (2) NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | Floppy drive | CN1 | Green PC LED | JP27 | | interface | | | | |-------------------+----------+------------------+----------| | Serial port 1 | CN2 | Green PC | JP29 | | | | connector | | |-------------------+----------+------------------+----------| | Serial port 2 | CN3 | Turbo switch | JP35 | |-------------------+----------+------------------+----------| | Parallel port | CN4 | Turbo LED | JP36 | |-------------------+----------+------------------+----------| | IDE interface 2 | CN6 | Speaker | JP37 | |-------------------+----------+------------------+----------| | IDE interface 1 | CN7 | Reset switch | JP44 | |-------------------+----------+------------------+----------| | External battery | JP12 | Power LED & | JP45 | | | | keylock | | |-------------------+----------+------------------+----------| | IDE interface LED | JP14 | 32-bit PCI slots | PC1 - | | 1 | | | PC3 | |-------------------+----------+------------------+----------| | IDE interface LED | JP15 | | | | 2 | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |---------------------------------------+-------+------------| |>> | CMOS memory normal operation | JP13 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| | | CMOS memory clear | JP13 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | PCI bus clock select CPU clock | JP21 | Pins 1 & 2 | | | speed | | closed | |---+-----------------------------------+-------+------------| | | PCI bus clock select 1/2 CPU | JP21 | Pins 2 & 3 | | | clock speed | | closed | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | JP31 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | JP39 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | JP40 | 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 | | | |------+-------------+-------------+------------+------------| | 2MB | (1) 512K x | None | None | None | | | 36 | | | | |------+-------------+-------------+------------+------------| | 3MB | (1) 512K x | (1) 256K x | None | None | | | 36 | 36 | | | |------+-------------+-------------+------------+------------| | 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None | | | 36 | 36 | 36 | | |------+-------------+-------------+------------+------------| | 4MB | (1) 512K 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 | |------+-------------+-------------+------------+------------| | 4MB | (1) 512K x | (1) 512K x | None | None | | | 36 | 36 | | | |------+-------------+-------------+------------+------------| | 5MB | (1) 1M x 36 | (1) 256K x | None | None | | | | 36 | | | |------+-------------+-------------+------------+------------| | 5MB | (1) 512K x | (1) 256K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 6MB | (1) 512K x | (1) 1M x 36 | None | None | | | 36 | | | | |------+-------------+-------------+------------+------------| | 6MB | (1) 512K x | (1) 512K x | (1) 512K x | None | | | 36 | 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 | |------+-------------+-------------+------------+------------| | 8MB | (1) 2M x 36 | None | None | None | |------+-------------+-------------+------------+------------| | 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x | | | 36 | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 9MB | (1) 2M x 36 | (1) 256K x | None | None | | | | 36 | | | |------+-------------+-------------+------------+------------| | 10MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | None | | | | 36 | 36 | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |------+-------------+-------------+------------+------------| | 11MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 2M x 36 | None | None | |------+-------------+-------------+------------+------------| | 12MB | (1) 2M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 16MB | (1) 2M 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) 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) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 24MB | (1) 2M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 2M x 36 | None | None | |------+-------------+-------------+------------+------------| | 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M 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) 2M x 36 | (1) 2M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 32MB | (1) 8M x 36 | None | None | None | |------+-------------+-------------+------------+------------| | 33MB | (1) 8M x 36 | (1) 256K x | None | None | | | | 36 | | | |------+-------------+-------------+------------+------------| | 34MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | None | | | | 36 | 36 | | |------+-------------+-------------+------------+------------| | 36MB | (1) 8M x 36 | (1) 1M x 36 | None | None | |------+-------------+-------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 40MB | (1) 8M x 36 | (1) 1M x 36 | (1) 1M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 40MB | (1) 8M x 36 | (1) 2M x 36 | None | None | |------+-------------+-------------+------------+------------| | 44MB | (1) 8M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 48MB | (1) 8M x 36 | (1) 2M x 36 | (1) 2M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 48MB | (1) 8M x 36 | (1) 4M x 36 | None | None | |------+-------------+-------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 56MB | (1) 8M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 64MB | (1) 8M x 36 | (1) 4M x 36 | (1) 4M x | None | | | | | 36 | | |------+-------------+-------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x | | | | | 36 | 36 | |------+-------------+-------------+------------+------------| | 64MB | (1) 8M x 36 | (1) 8M x 36 | None | None | |------+-------------+-------------+------------+------------| | 64MB | (1) 16M x | None | None | None | | | 36 | | | | |------+-------------+-------------+------------+------------| | 65MB | (1) 16M x | (1) 256K x | None | None | | | 36 | 36 | | | |------+-------------+-------------+------------+------------| | 66MB | (1) 16M x | (1) 256K x | (1) 256K x | None | | | 36 | 36 | 36 | | |------+-------------+-------------+------------+------------| | 67MB | (1) 16M x | (1) 256K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |------+-------------+-------------+------------+------------| | 68MB | (1) 16M x | (1) 1M x 36 | None | None | | | 36 | | | | |------+-------------+-------------+------------+------------| | 72MB | (1) 2M x 36 | (1) 16M x | None | None | | | | 36 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |--------+--------------+------------+-----------+-----------| | 72MB | (1) 16M x 36 | (1) 1M x | (1) 1M x | None | | | | 36 | 36 | | |--------+--------------+------------+-----------+-----------| | 72MB | (1) 16M x 36 | (1) 2M x | None | None | | | | 36 | | | |--------+--------------+------------+-----------+-----------| | 76MB | (1) 16M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 80MB | (1) 16M x 36 | (1) 2M x | (1) 2M x | None | | | | 36 | 36 | | |--------+--------------+------------+-----------+-----------| | 80MB | (1) 16M x 36 | (1) 4M x | None | None | | | | 36 | | | |--------+--------------+------------+-----------+-----------| | 88MB | (1) 16M x 36 | (1) 2M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 96MB | (1) 16M x 36 | (1) 4M x | (1) 4M x | None | | | | 36 | 36 | | |--------+--------------+------------+-----------+-----------| | 96MB | (1) 16M x 36 | (1) 8M x | None | None | | | | 36 | | | |--------+--------------+------------+-----------+-----------| | 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None | | | | 36 | 36 | | |--------+--------------+------------+-----------+-----------| | 100MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 104MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 112MB | (1) 16M x 36 | (1) 4M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |--------+--------------+------------+-----------+-----------| | 128MB | (1) 16M x 36 | (1) 8M x | (1) 8M 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 36 | (1) 16M x | None | None | | | | 36 | | | |------------------------------------------------------------| | Note: Board accepts x 32 SIMMs. Banks are interchangeable. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |-------------+---------------+---------------+--------------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | |-------------+---------------+---------------+--------------| | 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 256KB (B) | (4) 64K x 8 | NONE | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 512KB (A) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 | |-------------+---------------+---------------+--------------| | 512KB (B) | (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 | JP17 | JP18 | JP19 | JP20 | JP25 | JP26 | |-----------+--------+-------+-------+-------+-------+-------| | 128KB | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | |-----------+--------+-------+-------+-------+-------+-------| | 256KB (A) | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | |-----------+--------+-------+-------+-------+-------+-------| | 256KB (B) | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | |-----------+--------+-------+-------+-------+-------+-------| | 512KB (A) | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | |-----------+--------+-------+-------+-------+-------+-------| | 512KB (B) | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | |-----------+--------+-------+-------+-------+-------+-------| | 1MB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | JP22 | JP23 | |------------------+--------------------+--------------------| | 25MHz | Pins 2 & 3 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 33MHz | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 40MHz | Pins 1 & 2 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 50iMHz | Pins 2 & 3 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 50MHz | Pins 2 & 3 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 63iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 66iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 75iMHz | Pins 2 & 3 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 80iMHz | Pins 1 & 2 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 83iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 100iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 120iMHz | Pins 1 & 2 closed | Pins 2 & 3 closed | |------------------+--------------------+--------------------| | 133iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | J2 | J3 | J4 | J5 | |-----------------+----------+----------+----------+---------| | 80486SX | Closed | Open | Open | Open | |-----------------+----------+----------+----------+---------| | ODP486 | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | UMCU5S | Closed | Open | Open | Open | |-----------------+----------+----------+----------+---------| | CX486DX | Open | Closed | Open | Closed | |-----------------+----------+----------+----------+---------| | AM486DX | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | 80486DX | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | CX486DX2 | Open | Closed | Open | Closed | |-----------------+----------+----------+----------+---------| | CX486DX2V | Open | Closed | Open | Closed | |-----------------+----------+----------+----------+---------| | AM486DX2 | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | AM486DX2-80 | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | 80486DX2 | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | CX486DX4 | Open | Closed | Open | Closed | |-----------------+----------+----------+----------+---------| | CX486DX4 (P/O) | Open | Open | Open | Open | |-----------------+----------+----------+----------+---------| | AM486DX4 (NV8T) | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | AM486DX4 (SV8B) | Open | Open | Closed | Open | |-----------------+----------+----------+----------+---------| | 80486DX4 | Open | Closed | Open | Open | |-----------------+----------+----------+----------+---------| | 80486DX4 (WB) | Open | Open | Closed | Open | |-----------------+----------+----------+----------+---------| | P24D | Open | Open | Closed | Open | |-----------------+----------+----------+----------+---------| | P24T | Open | Open | Closed | Open | |-----------------+----------+----------+----------+---------| | CX5X86 | Open | Open | Open | Open | |-----------------+----------+----------+----------+---------| | AM X5 | Open | Open | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | J6 | J7 | JP42 | JP43 | |--------------+--------+--------+--------------+------------| | 80486SX | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | ODP486 | Closed | Open | Pins 1 & 2 | Pins 2 & 3 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | UMCU5S | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX486DX | Open | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM486DX | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | 80486DX | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX486DX2 | Open | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX486DX2V | Open | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM486DX2 | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM486DX2-80 | Closed | Open | Pins 2 & 3 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | 80486DX2 | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX486DX4 | Open | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX486DX4 | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | (P/O) | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM486DX4 | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | (NV8T) | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM486DX4 | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | (SV8B) | | | closed | closed | |--------------+--------+--------+--------------+------------| | 80486DX4 | Closed | Open | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | 80486DX4 | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | (WB) | | | closed | closed | |--------------+--------+--------+--------------+------------| | P24D | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | P24T | Open | Closed | Pins 1 & 2 | Pins 2 & 3 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | CX5X86 | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | |--------------+--------+--------+--------------+------------| | AM X5 | Open | Closed | Pins 1 & 2 | Pins 1 & 2 | | | | | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU MULTIPLIER SELECTION (DX4 ONLY) | |------------------------------------------------------------| | Multiplier | JP41 | |----------------------------+-------------------------------| | 2x | Pins 2 & 3 closed | |----------------------------+-------------------------------| | 3x | Open | |----------------------------+-------------------------------| | 4x | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE SELECTION | |------------------------------------------------------------| | Voltage | JP32 | JP38 | |---------+------------------------------+-------------------| | 3.3v | Open | Pins 1 & 2 closed | |---------+------------------------------+-------------------| | 4v | Open | Pins 2 & 3 closed | |---------+------------------------------+-------------------| | 5v | Pins 1 & 2, 3 & 4, 5 & 6 | N/A | | | closed | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CHANNEL SELECTION | |------------------------------------------------------------| | Channel | JP1 | JP2 | |------------------+--------------------+--------------------| | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed | |------------------+--------------------+--------------------| | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed | +------------------------------------------------------------+