PIONEX TECHNOLOGIES, INC. MB-8500TUC Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/180MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB (EDO supported) Memory Maximum Video Memory None Cache 256/512KB BIOS AMI Dimensions 290mm x 220mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), cache slot, IR connector, USB connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse J1 Power LED & keylock J13 pins 5 - interface 9 Floppy drive J2 Turbo LED J13 pins 10 & interface 11 Serial port 1 J5 Reset switch J13 pins 12 & 13 Serial port 2 J6 Green PC connector J13 pins 17 & 18 PS/2 mouse port J7 IDE interface LED J13 pins 20 & 21 Parallel port J9 +5v ground J13 pins 25 & 26 IDE interface 1 J10 IR connector J14 (optional) IDE interface 2 J11 32-bit PCI slots PC1 - PC4 Chassis fan power J12 Cache slot SL1 Speaker J13 pins 1 USB connector USB - 4 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not JP1 Unidentified alter Flash BIOS voltage select 12v JP10 Pins 1 & 2 closed Flash BIOS voltage select 5v JP10 Pins 2 & 3 closed EPROM or 0v flash BIOS used JP10 Open » CMOS memory normal operation JP11 Open CMOS memory clear JP11 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) 1M x 36 (2) 2M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 1M x 36 (2) 4M 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) 1M x 36 (2) 8M x 36 80MB (2) 2M x 36 (2) 8M 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. Bank 2 uses DIMM modules. The chip size and configuration is unidentified. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG SL1 256KB (2) 32K x None (1) 8K x 8 Not installed 32 512KB (A) (2) 32K x (2) 32K x (1) 32K x Not installed 32 32 8 512KB (B) (2) 32K x None (1) 8K x 8 256KB module 32 installed CACHE JUMPER CONFIGURATION Size JP5 256KB Open 512KB (A) Closed 512KB (B) Closed CPU SPEED SELECTION (CYRIX) CPU speed Clock Multiplier JP4 JP7 speed 100MHz 50MHz 2x Pins 1 & 2, 3 & Open 4 closed 110MHz 55MHz 2x Open Open 120MHz 60MHz 2x Pins 3 & 4 Open closed 133MHz 66MHz 2x Pins 1 & 2 Open closed CPU SPEED SELECTION (AMD) CPU speed Clock Multiplier JP4 JP7 speed 66MHz 66MHz 1x Pins 1 & 2 Pins 1 & 2 closed closed 75MHz 50MHz 1.5x Pins 1 & 2, 3 Open & 4 closed 83MHz 55MHz 1.5x Open Open 90MHz 60MHz 1.5x Pins 3 & 4 Open closed 100MHz 66MHz 1.5x Pins 1 & 2 Open closed CPU SPEED SELECTION (INTEL) CPU speed Clock Multiplier JP4 JP7 speed 75MHz 50MHz 1.5x Pins 1 & 2, 3 Open & 4 closed 90MHz 60MHz 1.5x Pins 3 & 4 Open closed 100MHz 66MHz 1.5x Pins 1 & 2 Open closed 120MHz 60MHz 2x Pins 3 & 4 Pins 1 & 2 closed closed 133MHz 66MHz 2x Pins 1 & 2 Pins 1 & 2 closed closed 150MHz 60MHz 2.5x Pins 3 & 4 Pins 1 & 2, 3 closed & 4 closed 166MHz 66MHz 2.5x Pins 1 & 2 Pins 1 & 2, 3 closed & 4 closed 180MHz 60MHz 3x Pins 3 & 4 Pins 3 & 4 closed closed CPU TYPE SELECTION Type JP6 JP9 JP15 Cyrix 1 & 2, 4 & 5 2 & 3, 4 & 5, Open 7 & 8, 9 & 10 AMD 1 & 2, 4 & 5 2 & 3, 4 & 5, Open 7 & 8, 9 & 10 Intel P54C/CQS/CT 1 & 2, 4 & 5 2 & 3, 4 & 5, Open 7 & 8, 9 & 10 Intel P55C/CT 2 & 3, 5 & 6 1 & 2, 3 & 4, Closed 6 & 7, 8 & 9 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage JP14 3.4v Closed 3.5 Open