BEK-TRONIC TECHNOLOGY, INC. BEK-5731 Processor Pentium Processor Speed 75/90/100/120/125/133/150/166/180/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 280mm x 220mm I/O Options 32-bit PCI slots (4), green PC connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot, IR connector, USB connectors (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse interface J1 IR connector J9 Serial port 1 J2 Reset switch J10 Parallel port J3 Power LED & keylock J11 Floppy drive interface J4 Speaker J12 IDE interface 1 J5 USB connector 2 JP3 IDE interface 2 J6 USB connector 1 JP4 Serial port 2 J7 Green PC connector JP22 IDE interface LED J8 32-bit PCI slots PC1 – PC4 Turbo LED J8A Cache slot SL1 USER CONFIGURABLE SETTINGS Function Label Position On board I/O enabled JP1 Pins 1 & 2 closed On board I/O disabled JP1 Pins 2 & 3 closed » Factory configured - do not JP2 Unidentified alter » Factory configured - do not JP8 Unidentified alter » Factory configured - do not JP8A Unidentified alter » Pipeline address enabled JP13 Closed Pipeline address disabled JP13 Open » Factory configured - do not JP16 Unidentified alter » Cache write select write back JP17 Pins 2 & 3 closed Cache write select write JP17 Pins 1 & 2 closed through Flash BIOS voltage select 12v JP18 Pins 1 & 2 closed Flash BIOS voltage select 5v JP18 Pins 2 & 3 closed » Factory configured - do not JP25 Unidentified alter CPU regulator voltage select 1 JP28 Pins 1 & 2 closed regulator voltage CPU regulator voltage select 2 JP28 Pins 2 & 3 closed regulator voltage 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 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 DIMM CONFIGURATION Size Bank 2 8MB (1) 1M x 64 16MB (1) 2M x 64 32MB (1) 4M x 64 64MB (1) 8M x 64 CACHE CONFIGURATION Size Bank 0 SL1 TAG 256KB (A) (2) 32K x 32 Not installed (1) 32K x 8 256KB (B) None 256KB module (1) 32K x 8 installed 512KB (A) (2) 32K x 32 256KB module (1) 32K x 8 installed 512KB (B) (2) 64K x 32 Not installed (1) 32K x 8 512KB (C) None 512KB module (1) 32K x 8 installed CACHE JUMPER CONFIGURATION Size JP10 JP12 JP14 JP15 256KB (A) Pins 2 & 3 Pins 2 & 3 Open Closed closed closed 256KB (B) Pins 2 & 3 Pins 2 & 3 Open Open closed closed 512KB (A) Pins 1 & 2 Pins 1 & 2 Closed Open closed closed 512KB (B) Pins 1 & 2 Pins 1 & 2 Closed Open closed closed 512KB (C) Pins 2 & 3 Pins 2 & 3 Open Closed closed closed CACHE TAG VOLTAGE CONFIGURATION Voltage JP9 3.3v Pins 2 & 3 closed 5v Pins 1 & 2 closed CPU SPEED SELECTION CPU Clock Multiplier JP5 JP6 JP7 JP26 JP27 speed speed 75MHz 50MHz 1.5x Open Closed Closed Open Open 90MHz 60MHz 1.5x Closed Open Closed Open Open 100MHz 66MHz 1.5x Closed Open Open Open Open 100MHz 50MHz 2x Closed Closed Closed Open Closed 120MHz 60MHz 2x Closed Open Closed Open Closed 125MHz 50MHz 2.5x Open Closed Closed Open Closed 133MHz 66MHz 2x Closed Open Open Open Closed 150MHz 60MHz 2.5x Closed Open Closed Closed Closed 166MHz 66MHz 2.5x Closed Open Open Closed Closed 180MHz 60MHz 3x Closed Open Closed Closed Open 200MHz 66MHz 3x Closed Open Open Closed Open CPU TYPE SELECTION Type JP21 JP29 P54C Pins 1 & 3, 2 & 4 Pins 1 & 3, 2 & 4 closed closed P55C Open Open CPU VOLTAGE SELECTION (SINGLE) Voltage JP24 2.5v Pins 1 & 2 closed 3.4v Pins 2 & 3 closed CPU VOLTAGE SELECTION (DUAL) Voltage V core JP20 JP24 2.5v 3v Pins 2 & 3 Pins 1 & 2 closed closed 2.5v 3.4v Pins 1 & 2 Pins 1 & 2 closed closed 3.4v 3v Pins 2 & 3 Pins 2 & 3 closed closed 3.4v 3.4v Pins 1 & 2 Pins 2 & 3 closed closed CMOS SELECTION Setting JP11 JP19 » CMOS memory normal Open Open operation CMOS memory clear Closed Closed