ABIT COMPUTER CORPORATION PR5 PCI (REV. 1.0) Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video Memory None Cache 256/512KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Reset switch J6 pins 1 & 2 Serial port 2 CN2 Green PC connector J6 pins 6 & 7 Parallel port CN3 Turbo LED J6 pins 8 & 9 Floppy drive CN4 Speaker J6 pins 11 - interface 14 IDE interface 2 CN5 Power LED & J6 pins 16 - keylock 20 IDE interface 1 CN6 IR connector JP2 USB connector CN7 Chassis fan power JP9 PS/2 mouse port J4 32-bit PCI slots PC1 - PC3 IDE interface LED J5 Cache slot SL1 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not alter DS8 Off » CMOS memory normal operation JP3 Pins 1 & 2 closed CMOS memory clear JP3 Pins 2 & 3 closed » Flash BIOS voltage select 12v JP8 Pins 2 & 3 closed Flash BIOS voltage select 5v JP8 Pins 1 & 2 closed DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 32 None 16MB (2) 2M x 32 None 16MB (2) 1M x 32 (2) 1M x 32 24MB (2) 2M x 32 (2) 1M x 32 32MB (2) 4M x 32 None 32MB (2) 2M x 32 (2) 2M x 32 40MB (2) 4M x 32 (2) 1M x 32 48MB (2) 4M x 32 (2) 2M x 32 64MB (2) 8M x 32 None 64MB (2) 4M x 32 (2) 4M x 32 72MB (2) 8M x 32 (2) 1M x 32 80MB (2) 8M x 32 (2) 2M x 32 96MB (2) 8M x 32 (2) 4M x 32 128MB (2) 8M x 32 (2) 8M x 32 Note: Board accepts EDO memory. Banks are interchangeable. If using this configuration, DIMM sockets must be empty. DIMM CONFIGURATION Size Bank 2 Bank 3 8MB (1) 1M x 64 None 16MB (1) 2M x 64 None 16MB (1) 1M x 64 (1) 1M x 64 24MB (1) 2M x 64 (1) 1M x 64 32MB (1) 4M x 64 None DIMM CONFIGURATION (CON’T) Size Bank 2 Bank 3 32MB (1) 2M x 64 (1) 2M x 64 40MB (1) 4M x 64 (1) 1M x 64 48MB (1) 4M x 64 (1) 2M x 64 64MB (1) 8M x 64 None 64MB (1) 4M x 64 (1) 4M x 64 72MB (1) 8M x 64 (1) 1M x 64 80MB (1) 8M x 64 (1) 2M x 64 96MB (1) 8M x 64 (1) 4M x 64 128MB (1) 8M x 64 (1) 8M x 64 Note: Banks are interchangeable. If using this configuration, SIMM sockets must be empty. CACHE CONFIGURATION Size Bank 0 SL1 TAG 256KB (2) 32K x 32 Not installed (1) 32K x 8 512KB (2) 32K x 32 256KB module (1) 32K x 8 installed CACHE JUMPER CONFIGURATION Size JP1 256KB Open 512KB Closed CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier DS/1 DS/2 DS/3 DS/4 DS/5 DS/6 DS/7 speed speed 120MHz 50MHz 2x Off On On On Off Off Off 133MHz 55MHz 2x Off On Off Off On Off Off 150MHz 60MHz 2x Off On Off On On Off Off 166MHz 66MHz 2x Off On On Off On Off Off CPU SPEED SELECTION (AMD) CPU Clock Multiplier DS/1 DS/2 DS/3 DS/4 DS/5 DS/6 DS/7 speed speed 75MHz 50MHz 1.5x Off Off On On Off Off Off 90MHz 60MHz 1.5x Off Off Off On On Off Off 100MHz 66MHz 1.5x Off Off On Off On Off Off 100MHz 55MHz 1.5x Off Off Off Off On Off Off 120MHz 60MHz 1.5x Off Off Off On On Off Off 133MHz 66MHz 1.5x Off Off On Off On Off Off 150MHz 60MHz 2x Off On Off On On Off Off 166MHz 66MHz 2x Off On On Off On Off Off CPU SPEED SELECTION (INTEL) CPU Clock Multiplier DS/1 DS/2 DS/3 DS/4 DS/5 DS/6 DS/7 speed speed 75MHz 50MHz 1.5x Off Off On On Off Off Off 90MHz 60MHz 1.5x Off Off Off On On Off Off 100MHz 66MHz 1.5x Off Off On Off On Off Off 120MHz 60MHz 2x Off On Off On On Off Off 133MHz 66MHz 2x Off On On Off On Off Off 150MHz 60MHz 2.5x On On Off On On Off Off 166MHz 66MHz 2.5x On On On Off On Off Off 200MHz 66MHz 3x On Off On Off On Off Off CPU VOLTAGE SELECTION Voltage VC/1 VC/2 VC/3 VC/4 VC/5 VC/6 VC/7 VC/8 2.5v Off Off Off Off On Off Off On 2.7v Off Off Off On Off Off Off On 2.83v Off Off On Off Off Off Off On » 3.38v Off On Off Off Off Off Off On 3.52v On Off Off Off Off Off Off On