ASUS COMPUTER INTERNATIONAL =========================== PCI/I-486SP3 Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2/Pentium Overdrive Processor 25/33/50(internal)/66(internal)MHz Speed Chip Set Intel Max. Onboard 128MB DRAM Cache 128/256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI local bus slots (3), floppy drive interface, IDE interface, parallel port, SCSI interface, serial ports (2) NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | Power LED & keylock | CON1 | IDE interface | J22 | | | | LED | | |---------------------+----------+----------------+----------| | Speaker | CON2 | 32-bit PCI bus | PCI1 | | | | slot | | |---------------------+----------+----------------+----------| | Turbo LED | CON3 | 32-bit PCI bus | PCI2 | | | | slot | | |---------------------+----------+----------------+----------| | Reset switch | CON4 | 32-bit PCI bus | PCI3 | | | | slot | | |---------------------+----------+----------------+----------| | Turbo switch | CON5 | Serial port 1 | S1 | |---------------------+----------+----------------+----------| | Floppy drive | FDD | Serial port 2 | S2 | | interface | | | | |---------------------+----------+----------------+----------| | IDE interface | IDE | Parallel port | S3 | |---------------------+----------+----------------+----------| | SCSI interface LED | J7 | SCSI interface | SCSI | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+--------+------------| |>> | BIOS ROM select (2) 27512 | J6 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | BIOS ROM select (1) 271000 | J6 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | IDE I/O Channel Ready disabled | J16 | Open | |---+----------------------------------+--------+------------| | | IDE I/O Channel Ready enabled | J16 | Closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | J23 | Closed | | | alter | | | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | J24 | Closed | | | alter | | | |---+----------------------------------+--------+------------| |>> | Secondary cache speed 0 wait | J33 | pins 1 & 2 | | | states | | closed | |---+----------------------------------+--------+------------| | | Secondary cache speed 1 wait | J33 | pins 2 & 3 | | | state | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | J34 | pins 2 & 3 | | | alter | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | J35 | pins 1 & 2 | | | alter | | closed | |---+----------------------------------+--------+------------| |>> | Secondary cache enabled | J36 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| | | Secondary cache disabled | J36 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Factory configured - do not | J47 | pins 2 & 3 | | | alter | | closed | |---+----------------------------------+--------+------------| |>> | BIOS type select EPROM | J48 | pins 2 & 3 | | | | | closed | |---+----------------------------------+--------+------------| | | BIOS type select Flash BIOS | J48 | pins 1 & 2 | | | | | closed | |---+----------------------------------+--------+------------| |>> | Onboard SCSI interface enabled | J51 | Open | |---+----------------------------------+--------+------------| | | Onboard SCSI interface disabled | J51 | Closed | |---+----------------------------------+--------+------------| |>> | Floppy, IDE, Parallel, and | JSMC | pins 1 & 2 | | | Serial ports enabled | | closed | |---+----------------------------------+--------+------------| | | Floppy, IDE, Parallel, and | JSMC | pins 2 & 3 | | | Serial ports disabled | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | ONBOARD SCSI INTERFACE CONFIGURATION | |------------------------------------------------------------| | Onboard SCSI | J17 | J18 | |-------------------------+-----------------+----------------| | Present (PCI2 is slave) | Open | Open | |-------------------------+-----------------+----------------| | Absent (PCI2 is master) | Closed | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT IRQ5 CONFIGURATION | |------------------------------------------------------------| | Bus | J3 | |----------------------------+-------------------------------| | ISA | pins 1 & 2 closed | |----------------------------+-------------------------------| | PCI (INT A) | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT IRQ9 CONFIGURATION | |------------------------------------------------------------| | Bus/Device | J1 & J2 | |----------------------------+-------------------------------| | ISA | J1/pin 1 & J2/pin 1 closed | |----------------------------+-------------------------------| | PCI (INT D) | J1/pin 3 & J2/pin 3 closed | |----------------------------+-------------------------------| | SCSI | J1/pin 2 & J2/pin 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT IRQ11 CONFIGURATION | |------------------------------------------------------------| | Bus | J4 | |---------------------------+--------------------------------| | ISA | pins 1 & 2 closed | |---------------------------+--------------------------------| | PCI (INT B) | pins 2 & 3 closed | |------------------------------------------------------------| | Note: The PCI bus can have only one IRQ on INT B (i.e. you | | can use IRQ11 or IRQ14 but not both). | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT IRQ14 CONFIGURATION | |------------------------------------------------------------| | Bus | J49 | J50 | |-------------------+-------------------------+--------------| | ISA | pins 2 & 3 closed | open | |-------------------+-------------------------+--------------| | PCI (INT A) | pins 1 & 2 closed | open | |-------------------+-------------------------+--------------| | PCI (INT B) | open | closed | |------------------------------------------------------------| | Note: The PCI bus can have only one IRQ on INT B (i.e. you | | can use IRQ11 or IRQ14 but not both). The PCI bus can have | | only one IRQ on INT A (i.e. you can use IRQ5 or IRQ14 but | | not both). The PCI bus can have only one IRQ on INT B | | (i.e. you can use IRQ11 or IRQ14 but not both). | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT IRQ15 CONFIGURATION | |------------------------------------------------------------| | Bus | J5 | |----------------------------+-------------------------------| | ISA | pins 1 & 2 closed | |----------------------------+-------------------------------| | PCI (INT C) | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | TAG | |------------+---------------+---------------+---------------| | 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | |------------+---------------+---------------+---------------| | 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 | |------------+---------------+---------------+---------------| | 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | J25 | J26 | J37 | J38 | |-------+-------------+------------+------------+------------| | 128KB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | | | closed | closed | closed | closed | |-------+-------------+------------+------------+------------| | 256KB | pins 2 & 3 | pins 1 & 2 | pins 2 & 3 | pins 1 & 2 | | | closed | closed | closed | closed | |-------+-------------+------------+------------+------------| | 512KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | | | closed | closed | closed | closed | |------------------------------------------------------------| | Note:Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | CPU | Socket | CP1 | CP2 | CP3 | J43 | |--------------+--------+---------+--------+--------+--------| | 80486SX | PGA | pins 2 | pins 1 | Open | Closed | | | | & 3 | & 2 | | | |--------------+--------+---------+--------+--------+--------| | 80486SX | PQFP | 1 & 2 | pins 2 | pins 2 | Closed | | | | and 3 & | & 3 | & 3 | | | | | 4 | | | | |--------------+--------+---------+--------+--------+--------| | 80487SX | PGA | 1 & 2 | pins 2 | pins 2 | Closed | | | | and 3 & | & 3 | & 3 | | | | | 4 | | | | |--------------+--------+---------+--------+--------+--------| | 80486DX | PGA | 1 & 2 | pins 1 | pins 1 | Closed | | | | and 3 & | & 2 | & 2 | | | | | 4 | | | | |--------------+--------+---------+--------+--------+--------| | ODP486SX | PGA | 1 & 2 | pins 2 | pins 2 | Closed | | | | and 3 & | & 3 | & 3 | | | | | 4 | | | | |--------------+--------+---------+--------+--------+--------| | 80486DX2 | PGA | 1 & 2 | pins 1 | pins 1 | Closed | | | | and 3 & | & 2 | & 2 | | | | | 4 | | | | |--------------+--------+---------+--------+--------+--------| | Pentium | PGA | 1 & 2 | pins 2 | pins 2 | Open | | Overdrive | | and 3 & | & 3 | & 3 | | | | | 4 | | | | |------------------------------------------------------------| | Note:Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | CS1 | J31 | J32 | |---------+----------------+----------------+----------------| | 25MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | | | closed | closed | closed | |---------+----------------+----------------+----------------| | 33MHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | | | closed | closed | closed | |---------+----------------+----------------+----------------| | 50i MHz | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | | | closed | closed | closed | |---------+----------------+----------------+----------------| | 66i MHz | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | | | closed | closed | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |-------+-------------+------------+------------+------------| | 2MB | (1) 256K x | (1) 256K x | NONE | NONE | | | 36 | 36 | | | |-------+-------------+------------+------------+------------| | 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 4MB | (1) 512K x | (1) 512K x | NONE | NONE | | | 36 | 36 | | | |-------+-------------+------------+------------+------------| | 6MB | (1) 256K x | (1) 256K x | (1) 512K x | (1) 512K x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 6MB | (1) 512K x | (1) 512K x | (1) 256K x | (1) 256K x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 10MB | (1) 1M x 36 | (1) 1M x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 12MB | (1) 512K x | (1) 512K x | (1) 1M x | (1) 1M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x | (1) 512K x | (1) 512K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 16MB | (1) 2M x 36 | (1) 2M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 18MB | (1) 256K x | (1) 256K x | (1) 2M x | (1) 2M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 18MB | (1) 2M x 36 | (1) 2M x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 20MB | (1) 512K x | (1) 512K x | (1) 2M x | (1) 2M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 20MB | (1) 2M x 36 | (1) 2M x | (1) 512K x | (1) 512K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 24MB | (1) 1M x 36 | (1) 1M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 24MB | (1) 2M x 36 | (1) 2M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 34MB | (1) 256K x | (1) 256K x | (1) 4M x | (1) 4M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 34MB | (1) 4M x 36 | (1) 4M x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 36MB | (1) 512K x | (1) 512K x | (1) 4M x | (1) 4M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 36MB | (1) 4M x 36 | (1) 4M x | (1) 512K x | (1) 512K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 48MB | (1) 2M x 36 | (1) 2M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE | | | | 36 | | | |-------+-------------+------------+------------+------------| | 66MB | (1) 256K x | (1) 256K x | (1) 8M x | (1) 8M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 66MB | (1) 8M x 36 | (1) 8M x | (1) 256K x | (1) 256K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 68MB | (1) 512K x | (1) 512K x | (1) 8M x | (1) 8M x | | | 36 | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 68MB | (1) 8M x 36 | (1) 8M x | (1) 512K x | (1) 512K x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 72MB | (1) 8M x 36 | (1) 8M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 80MB | (1) 2M x 36 | (1) 2M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 80MB | (1) 8M x 36 | (1) 8M x | (1) 2M x | (1) 2M x | | | | 36 | 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) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | +------------------------------------------------------------+