M TECHNOLOGY, INC. ================== R525 PENTIUM PCI Processor Pentium Processor 75/90/100/120/133/150MHz Speed Chip Set Intel Max. Onboard 128MB DRAM Cache 256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VRM connector, cache slot NPU Options None +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-------------------+----------+------------------+----------| | PS/2 mouse port | CN1 | Speaker | J2 | |-------------------+----------+------------------+----------| | Serial port 1 | CN2 | Turbo switch | J3 | |-------------------+----------+------------------+----------| | Serial port 2 | CN3 | Turbo LED | J4 | |-------------------+----------+------------------+----------| | Parallel port | CN4 | Reset switch | J5 | |-------------------+----------+------------------+----------| | Floppy drive | CN5 | Green PC | J6 | | interface | | connector | | |-------------------+----------+------------------+----------| | IDE interface 1 | CN6 | IDE interface | JP35 | | | | LED | | |-------------------+----------+------------------+----------| | IDE interface 2 | CN7 | 32-bit PCI slots | PC1 - | | | | | PC4 | |-------------------+----------+------------------+----------| | VRM connector | CN8 | Cache slot | SL1 | |-------------------+----------+------------------+----------| | Power LED & | J1 | | | | keylock | | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | USER CONFIGURABLE SETTINGS | |------------------------------------------------------------| | Function | Jumper | Position | |--------------------------------------+---------+-----------| |>> | Factory configured - do not | JP8 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| |>> | Factory configured - do not | JP9 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| |>> | Factory configured - do not | JP10 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| |>> | Factory configured - do not | JP11 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| | | Pipeline disabled | JP42 | Open | |----+---------------------------------+---------+-----------| | | Pipeline enabled | JP42 | Closed | |----+---------------------------------+---------+-----------| |>> | Cache type select write back | JP43 | Open | |----+---------------------------------+---------+-----------| | | Cache type select write through | JP43 | Closed | |----+---------------------------------+---------+-----------| |>> | Factory configured - do not | JP48 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| |>> | Factory configured - do not | JP49 | N/A | | | alter | | | |----+---------------------------------+---------+-----------| |>> | CMOS memory normal operation | JP54 | Open | |----+---------------------------------+---------+-----------| | | CMOS memory clear | JP54 | Closed | |------------------------------------------------------------| | Note: The location of the factory configured jumpers are | | unidentified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 8MB | (2) 1M x 36 | NONE | |------------------+--------------------+--------------------| | 8MB | (2) 512K x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 10MB | (2) 1M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 10MB | (2) 256K x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 12MB | (2) 1M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 12MB | (2) 512K x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 16MB | (2) 2M x 36 | NONE | |------------------+--------------------+--------------------| | 16MB | (2) 1M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 18MB | (2) 2M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 18MB | (2) 256K x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 20MB | (2) 2M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 20MB | (2) 512K x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 24MB | (2) 2M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 24MB | (2) 1M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 32MB | (2) 4M x 36 | NONE | |------------------+--------------------+--------------------| | 32MB | (2) 2M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 34MB | (2) 4M x 36 | (2) 256K x 36 | |------------------+--------------------+--------------------| | 34MB | (2) 256K x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 36MB | (2) 4M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 36MB | (2) 512K x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 40MB | (2) 4M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 40MB | (2) 1M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 48MB | (2) 4M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 48MB | (2) 2M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 64MB | (2) 8M x 36 | NONE | |------------------+--------------------+--------------------| | 64MB | (2) 4M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 66MB | (2) 8M x 36 | (2) 256K x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | DRAM CONFIGURATION (CON'T) | |------------------------------------------------------------| | Size | Bank 0 | Bank 1 | |------------------+--------------------+--------------------| | 66MB | (2) 256K x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 68MB | (2) 8M x 36 | (2) 512K x 36 | |------------------+--------------------+--------------------| | 68MB | (2) 512K x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 72MB | (2) 8M x 36 | (2) 1M x 36 | |------------------+--------------------+--------------------| | 72MB | (2) 1M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 80MB | (2) 8M x 36 | (2) 2M x 36 | |------------------+--------------------+--------------------| | 80MB | (2) 2M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 96MB | (2) 8M x 36 | (2) 4M x 36 | |------------------+--------------------+--------------------| | 96MB | (2) 4M x 36 | (2) 8M x 36 | |------------------+--------------------+--------------------| | 128MB | (2) 8M x 36 | (2) 8M x 36 | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Size | Bank 0 | TAG | SL1 | |-----------+-------------+------------------+---------------| | 256KB (A) | (8) 32K x 8 | (1) 8K/16K/32K x | Not installed | | | | 8 | | |-----------+-------------+------------------+---------------| | 256KB (B) | NONE | NONE | Installed | |-----------+-------------+------------------+---------------| | 512KB (A) | (8) 64K x 8 | (1) 16K/32K x 8 | Not installed | |-----------+-------------+------------------+---------------| | 512KB (B) | NONE | NONE | Installed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE JUMPER CONFIGURATION | |------------------------------------------------------------| | Size | JP5 | JP36 | JP37 | |---------+------------------+----------------+--------------| | 256KB | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 | | | closed | closed | closed | |---------+------------------+----------------+--------------| | 512KB | pins 1 & 2 | pins 1 & 2 | pins 2 & 3 | | | closed | closed | closed | |------------------------------------------------------------| | Note: These settings are only valid if standard cache is | | installed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE CONFIGURATION | |------------------------------------------------------------| | Type | JP38 | |-------------------------------+----------------------------| | Standard cache | pins 1 & 2 closed | |-------------------------------+----------------------------| | Pipeline burst cache | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CACHE VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | JP3 | JP4 | |------------------+--------------------+--------------------| | Mixed voltage | pins 1 & 2 closed | pins 1 & 2 closed | |------------------+--------------------+--------------------| | 3.3v | pins 2 & 3 closed | pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU TYPE CONFIGURATION | |------------------------------------------------------------| | Type | CN8 | JP32 | |------------------+--------------------+--------------------| | P54CX | pins A6 & A7, B6 & | Open | | | B7 closed | | |------------------+--------------------+--------------------| | P55C 2.5v | Open | pins 1 & 2, 3 & 4, | | | | 5 & 6 closed | |------------------+--------------------+--------------------| | P55C 2.5v on VRM | VRM installed | Open | |------------------+--------------------+--------------------| | P55CT | VRM installed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU SPEED CONFIGURATION | |------------------------------------------------------------| | Speed | JP28 | JP29 | JP31 | JP40 | JP41 | |----------+----------+----------+---------+--------+--------| | 75MHz | Open | Open | 1 & 2 | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 90MHz | Open | Closed | 2 & 3 | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 100MHz | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 | |----------+----------+----------+---------+--------+--------| | 120MHz | Open | Closed | 2 & 3 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 133MHz | Closed | Closed | 2 & 3 | 1 & 2 | 2 & 3 | |----------+----------+----------+---------+--------+--------| | 150MHz | Open | Closed | 2 & 3 | 2 & 3 | 2 & 3 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CPU VOLTAGE CONFIGURATION | |------------------------------------------------------------| | Voltage | JP44 | JP45 | JP46 | |---------------+---------------+---------------+------------| | 3.3v | Closed | Open | Open | |---------------+---------------+---------------+------------| | 3.45v - 3.6v | Open | Closed | Open | +------------------------------------------------------------+ +------------------------------------------------------------+ | DMA CONFIGURATION | |------------------------------------------------------------| | >> DMA | JP6 | JP7 | |------------------+--------------------+--------------------| |>> | DMA 1 | pins 2 & 3 closed | pins 2 & 3 closed | |---+--------------+--------------------+--------------------| |>> | DMA 3 | pins 1 & 2 closed | pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | PS/2 MOUSE CONFIGURATION | |------------------------------------------------------------| | Setting | JP19 | JP20 | JP21 | JP22 | JP23 | |------------+---------+---------+---------+--------+--------| | Disabled | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | |------------+---------+---------+---------+--------+--------| | Enabled | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | |------------------------------------------------------------| | Note: Pins designated should be in the closed position. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLASH BIOS CONFIGURATION | |------------------------------------------------------------| | Setting | JP50 | JP51 | |-------------------+--------------------+-------------------| | Normal mode | pins 2 & 3 closed | pins 2 & 3 closed | |-------------------+--------------------+-------------------| | Programming mode | pins 1 & 2 closed | pins 1 & 2 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | MISCELLANEOUS TECHNICAL NOTE | |------------------------------------------------------------| | Note: The location of some pin 1's are unidentified. | +------------------------------------------------------------+