M TECHNOLOGY, INC. R525 PENTIUM PCI (VER.2) Processor Pentium Processor Speed 75/90/100/120/133/150MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 128MB (EDO supported) Maximum Video Memory None 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 [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse port CN1 Power LED & keylock J1 Serial port 1 CN2 Speaker J2 Serial port 2 CN3 Turbo switch J3 Parallel port CN4 Turbo LED J4 Floppy drive interface CN5 Reset switch J5 IDE interface 1 CN6 Green PC connector J6 IDE interface 2 CN7 32-bit PCI slots PC1 - PC4 VRM connector CN8 Cache slot SL1 USER CONFIGURABLE SETTINGS Function Label Position Pipeline disabled JP42 Open Pipeline enabled JP42 Closed » Cache type select write back JP43 Open Cache type select write through JP43 Closed » CMOS memory normal operation JP54 Open CMOS memory clear JP54 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M 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 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 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 Note: Board accepts EDO memory. CACHE CONFIGURATION Size Bank 0 TAG SL1 256KB (A) (8) 32K x 8 (1) 8K/16K/32K x 8 Not installed 256KB (B) None None 256KB module installed 512KB (A) (8) 64K x 8 (1) 16K/32K x 8 Not installed 512KB (B) None None 512KB module 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 SPEED SELECTION 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 TYPE SELECTION Type CN8 JP32 P54CX Pins A6 & A7, B6 & B7 Open 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 VOLTAGE SELECTION Voltage JP44 JP45 JP46 3.3v Closed Open Open 3.45v - 3.6v Open Closed Open DMA CHANNEL SELECTION Channel JP6 JP7 1 Pins 2 & 3 closed Pins 2 & 3 closed » 3 Pins 1 & 2 closed Pins 1 & 2 closed PS/2 MOUSE SELECTION 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 SELECTION Setting JP50 JP51 Normal mode Pins 2 & 3 closed Pins 2 & 3 closed Programming mode Pins 1 & 2 closed Pins 1 & 2 closed