AMPTRON INTERNATIONAL, INC. PM-7500C Processor Pentium Processor Speed 75/90/100/120/133MHz Chip Set Intel Video Chip Set None Maximum Onboard Memory 128MB (EDO supported) Maximum Video Memory None Cache 256/512KB BIOS Award Dimensions 254mm x 218mm I/O Options 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Serial port 2 CN1 Chassis fan power J23 Serial port 1 CN2 Speaker JP25 Floppy drive interface CN3 Power LED & keylock JP26 Parallel port CN4 Reset switch JP27 IDE interface 2 CN5 IDE interface LED JP28 IDE interface 1 CN6 32-bit PCI slots PC1 – PC3 External battery J4 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation J4 Pins 2 & 3 closed CMOS memory clear J4 Pins 3 & 4 closed Battery type select external J4 Closed Flash BIOS voltage select 12v JP4 Closed Flash BIOS voltage select 5v JP4 Open » Factory configured - do not JP9 Unidentified alter » Factory configured - do not JP10 Unidentified alter 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 40MB (2) 4M x 36 (2) 1M 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 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 Note: Board accepts EDO memory. The location of the banks is unidentified. CACHE CONFIGURATION Size Bank 0 TAG 256KB (8) 32K x 8 (1) 8K/16K/32K x 8 512KB (8) 64K x 8 (1) 16K/32K x 8 CACHE JUMPER CONFIGURATION Size J9 256KB Pins 1 & 2 closed 512KB Pins 2 & 3 closed CACHE VOLTAGE CONFIGURATION Voltage J10 3.3v Pins 1 & 2 closed 5v Pins 2 & 3 closed CPU SPEED SELECTION CPU Clock Multiplier JP3 JP5A JP5B JP11A JP11B speed speed 75MHz 50MHz 1.5x 1 & Closed Closed Open Open 2 90MHz 60MHz 1.5x 2 & Open Closed Open Open 3 100MHz 66MHz 1.5x 2 & Closed Open Open Open 3 120MHz 60MHz 2x 2 & Open Closed Closed Open 3 133MHz 66MHz 2x 2 & Closed Open Closed Open 3 Note: Pins designated should be in the closed position. The orientation of A & B on JP11 is unidentified. CPU VOLTAGE SELECTION Voltage JP6 3.3v Pins 2 & 3 closed 3.5v Pins 1 & 2 closed DMA CHANNEL SELECTION Channel JP1 JP2 1 Pins 1 & 2 closed Pins 1 & 2 closed 2 Pins 2 & 3 closed Pins 2 & 3 closed