IBM CORPORATION =============== PC SERVER 300 (TYPE 8640) ONO, 1NO, 1NJ, ONJ Processor 80486SX/80486DX/80486DX2/80486DX4/P24T Processor 25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz Speed Chip Set Unidentified Video Chip None Set Maximum 128MB Onboard Memory Maximum None Video Memory Cache 128/256KB BIOS Unidentified Dimensions 355mm x 304mm I/O 32-bit PCI slots (3), floppy drive interface, IDE interfaces Options (2), parallel port, PS/2 mouse port, serial ports (2) NPU None Options +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | PS/2 mouse port | J2 | IDE interface 1 | J21 | |-------------------+----------+------------------+----------| | Speaker | J5 | IDE interface 2 | J22 | |-------------------+----------+------------------+----------| | Parallel port | J8 | Power LED | W12 | |-------------------+----------+------------------+----------| | Floppy drive | J9 | PCI IDE | W39 | | interface | | interface LED | | |-------------------+----------+------------------+----------| | Serial port 2 | J10 | ISA IDE | W46 | | | | interface LED | | |-------------------+----------+------------------+----------| | Serial port 1 | J11 | 32-bit PCI slots | PC1 - | | | | | PC3 | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Label | Position | |---------------------------------------+-------+------------| |>> | Secondary cache write select | W1 | Pins 2 & 3 | | | write back | | closed | |---+-----------------------------------+-------+------------| | | Secondary cache write select | W1 | Pins 1 & 2 | | | write through | | closed | |---+-----------------------------------+-------+------------| |>> | Internal cache write select write | W4 | Open | | | through | | | |---+-----------------------------------+-------+------------| | | Internal cache write select write | W4 | Closed | | | back | | | |---+-----------------------------------+-------+------------| |>> | BIOS normal operation | W6 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| | | BIOS recovery mode | W6 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | Factory configured - do not alter | W8 | Closed | |---+-----------------------------------+-------+------------| |>> | PS/2 mouse enabled | W10 | Closed | |---+-----------------------------------+-------+------------| | | PS/2 mouse disabled | W10 | Open | |---+-----------------------------------+-------+------------| | | DPU generates parity | W17 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| | | CPU generates parity | W17 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | DPU parity error disabled | W18 | Pins 2 & 3 | | | | | closed | |---+-----------------------------------+-------+------------| | | DPU parity error enabled | W18 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| |>> | Cache enabled | W21 | Open | |---+-----------------------------------+-------+------------| | | Cache disabled | W21 | Closed | |---+-----------------------------------+-------+------------| |>> | PCI IDE IRQ14 enabled | W35 | Closed | |---+-----------------------------------+-------+------------| | | PCI IDE IRQ14 disabled | W35 | Open | |---+-----------------------------------+-------+------------| |>> | PCI IDE PCI INT A disabled | W37 | Closed | |---+-----------------------------------+-------+------------| | | PCI IDE PCI INT A enabled | W37 | Open | |---+-----------------------------------+-------+------------| |>> | PCI IRQ15 disabled | W38 | Open | |---+-----------------------------------+-------+------------| | | PCI IRQ15 enabled | W38 | Closed | |---+-----------------------------------+-------+------------| | | ISA IDE IRQ select IRQ14 | W42 | Pins 1 & 2 | | | | | closed | |---+-----------------------------------+-------+------------| | | ISA IDE IRQ select IRQ15 | W42 | Pins 2 & 3 | | | | | closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | SIMM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 | |-------+-------------+------------+------------+------------| | 4MB | (1) 1M x 36 | None | None | None | |-------+-------------+------------+------------+------------| | 8MB | (1) 2M x 36 | None | None | None | |-------+-------------+------------+------------+------------| | 8MB | (1) 1M x 36 | (1) 1M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 12MB | (1) 2M x 36 | (1) 1M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 12MB | (1) 1M x 36 | (1) 2M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 16MB | (1) 2M x 36 | (1) 1M x | (1) 1M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 16MB | (1) 2M x 36 | (1) 2M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 20MB | (1) 4M x 36 | (1) 1M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 20MB | (1) 2M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 24MB | (1) 4M x 36 | (1) 2M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 24MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 28MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 32MB | (1) 8M x 36 | None | None | None | |-------+-------------+------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 32MB | (1) 4M x 36 | (1) 4M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 36MB | (1) 8M x 36 | (1) 1M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 40MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 40MB | (1) 8M x 36 | (1) 2M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 48MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 48MB | (1) 8M x 36 | (1) 4M x | None | None | | | | 36 | | | |-------+-------------+------------+------------+------------| | 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 56MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | (1) 2M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 64MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 64MB | (1) 8M 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 | |-------+-------------+------------+------------+------------| | 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None | | | | 36 | 36 | | |-------+-------------+------------+------------+------------| | 112MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | |-------+-------------+------------+------------+------------| | 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x | | | | 36 | 36 | 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Note: The location of the cache is unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | W5 | W22 | W23 | |--------------+---------------+--------------+--------------| | 128KB | Open | Closed | Open | |--------------+---------------+--------------+--------------| | 256KB | Closed | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | TAG CONFIGURATION | |------------------------------------------------------------| | Type | W24 | W26 | |------------------------+-----------------+-----------------| | | 7-bit | Open | Closed | |---+--------------------+-----------------+-----------------| | | 8-bit | Closed | Closed | |---+--------------------+-----------------+-----------------| |>> | 9-bit | Closed | Open | |---+--------------------+-----------------+-----------------| | | Reserved | Open | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED SELECTION | |------------------------------------------------------------| | Speed | W16 | W20 | |--------------------+-------------------+-------------------| | 25MHz | Open | Closed | |--------------------+-------------------+-------------------| | 33MHz | Closed | Open | |--------------------+-------------------+-------------------| | 50iMHz | Open | Closed | |--------------------+-------------------+-------------------| | 66iMHz | Closed | Open | |--------------------+-------------------+-------------------| | 75iMHz | Open | Closed | |--------------------+-------------------+-------------------| | 100iMHz | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE SELECTION | |------------------------------------------------------------| | Type | W2 | W3 | |-----------------+--------------------------+---------------| | 80486SX | Pins 2 & 3 closed | Closed | |-----------------+--------------------------+---------------| | 80486DX | Pins 1 & 2, 3 & 4 closed | Closed | |-----------------+--------------------------+---------------| | 80486DX2 | Pins 1 & 2, 3 & 4 closed | Closed | |-----------------+--------------------------+---------------| | 80486DX4 | Pins 1 & 2, 3 & 4 closed | Closed | |-----------------+--------------------------+---------------| | P24T | Pins 1 & 2, 3 & 4 closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU MULTIPLIER SELECTION | |------------------------------------------------------------| | Multiplier | W33 | |-------------------------------+----------------------------| | 80486DX4 | Pins 1 & 2 closed | |-------------------------------+----------------------------| | 80486DX4 (2x) | Pins 2 & 3 closed | |-------------------------------+----------------------------| | 80486SX/DX/DX2/DX4 (3x) | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | IDE DMA CHANNEL SELECTION | |------------------------------------------------------------| | Channel | W43 | |-----------------------------+------------------------------| |>> | PIO transfer | Open | |---+-------------------------+------------------------------| | | 6 | Pins 1 & 2 closed | |---+-------------------------+------------------------------| | | 7 | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | PCI IRQ JUMPER SELECTION | |------------------------------------------------------------| | Note: The jumper settings for J101 are unidentified. | +------------------------------------------------------------+