EPOX COMPUTER CO., LTD. P55-VPX Device Type Mainboard Processor CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/AM K5/ AM K6/Pentium/Pentium MMX Processor 100/120/133/150/166/188/200/225/233/266/300/333MHz Speed Chip Set VIA Video Chip Set None Maximum 256MB (EDO & SDRAM supported) Onboard Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 254mm x 218mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connector, ATX power connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location ATX power connector ATX IR connector JP10 Serial port 1 CN2 Power LED & keylock JP11A Serial port 2 CN3 Speaker JP11B USB connector CN4 Reset switch JP11C Parallel port CN5 Green PC LED JP11D Floppy drive interface CN6 Turbo LED JP11E IDE interface 2 CN7 IDE interface LED JP11F IDE interface 1 CN8 Soft off power supply JP11G PS/2 mouse interface JP1 32-bit PCI slots PC1 – PC4 CPU fan power JP7 USER CONFIGURABLE SETTINGS Function Label Position Keyboard power on disabled JP2 Pins 1 & 2 closed Keyboard power on enabled JP2 Pins 2 & 3 closed SIMM CONFIGURATION Size Bank 2 8MB (2) 1M x 36 16MB (2) 2M x 36 32MB (2) 4M x 36 64MB (2) 8M x 36 128MB (2) 16M x 36 256MB (2) 32M x 36 Note: Board accepts EDO memory. DIMM CONFIGURATION Size Bank 0 Bank 1 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 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 DIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 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) 16M x 64 None 128MB (1) 8M x 64 (1) 8M x 64 136MB (1) 16M x 64 (1) 1M x 64 144MB (1) 16M x 64 (1) 2M x 64 160MB (1) 16M x 64 (1) 4M x 64 192MB (1) 16M x 64 (1) 8M x 64 256MB (1) 16M x 64 (1) 16M x 64 Note: Board accepts SDRAM memory. DIMM VOLTAGE CONFIGURATION Voltage JP5 » 3.3v Pins 5 & 6, 7 & 8 closed 5v Pins 1 & 2, 3 & 4 closed CACHE CONFIGURATION Note: The location of the 256KB/512KB cache is unidentified. CPU SPEED SELECTION (CX 6X86L) CPU speed Clock speed Multiplier JP6 150MHz 60MHz 2x Pins 2 & 15 closed 166MHz 66MHz 2x Pins 3 & 16 closed 200MHz 75MHz 2x Pins 4 & 17 closed CPU SPEED SELECTION (IBM 6X86L) CPU speed Clock speed Multiplier JP6 150MHz 60MHz 2x Pins 2 & 15 closed 166MHz 66MHz 2x Pins 3 & 16 closed 200MHz 75MHz 2x Pins 4 & 17 closed CPU SPEED SELECTION (CX 6X86MX) CPU speed Clock speed Multiplier JP6 166MHz 66MHz 2x Pins 3 & 16 closed 166MHz 60MHz 2.5x Pins 5 & 18 closed 200MHz 75MHz 2x Pins 4 & 17 closed 200MHz 66MHz 2.5x Pins 6 & 19 closed 233MHz 75MHz 2.5x Pins 7 & 20 closed 233MHz 66MHz 3x Pins 8 & 21 closed 266MHz 75MHz 3x Pins 9 & 22 closed 266MHz 66MHz 3.5x Pins 10 & 23 closed CPU SPEED SELECTION (IBM 6X86MX) CPU speed Clock speed Multiplier JP6 166MHz 66MHz 2x Pins 3 & 16 closed 166MHz 60MHz 2.5x Pins 5 & 18 closed 200MHz 75MHz 2x Pins 4 & 17 closed 200MHz 66MHz 2.5x Pins 6 & 19 closed 233MHz 75MHz 2.5x Pins 7 & 20 closed 233MHz 66MHz 3x Pins 8 & 21 closed 266MHz 75MHz 3x Pins 9 & 22 closed 266MHz 66MHz 3.5x Pins 10 & 23 closed CPU SPEED SELECTION (AM K5) CPU speed Clock speed Multiplier JP6 100MHz 66MHz 1.5x Pins 1 & 14 closed 120MHz 60MHz 2x Pins 2 & 15 closed 133MHz 66MHz 2x Pins 3 & 16 closed 150MHz 60MHz 2.5x Pins 5 & 18 closed 166MHz 66MHz 2.5x Pins 6 & 19 closed 188MHz 75MHz 2.5x Pins 7 & 20 closed 200MHz 66MHz 3x Pins 8 & 21 closed CPU SPEED SELECTION (AM K6) CPU speed Clock speed Multiplier JP6 166MHz 66MHz 2.5x Pins 6 & 19 closed 200MHz 66MHz 3x Pins 8 & 21 closed 225MHz 75MHz 3x Pins 9 & 22 closed 233MHz 66MHz 3.5x Pins 10 & 23 closed 266MHz 66MHz 4x Pins 11 & 24 closed 300MHz 66MHz 4.5x Pins 12 & 25 closed 333MHz 66MHz 5x Pins 13 & 26 closed CPU SPEED SELECTION (INTEL) CPU speed Clock speed Multiplier JP6 100MHz 66MHz 1.5x Pins 1 & 14 closed 120MHz 60MHz 2x Pins 2 & 15 closed 133MHz 66MHz 2x Pins 3 & 16 closed 150MHz 60MHz 2.5x Pins 5 & 18 closed 166MHz 66MHz 2.5x Pins 6 & 19 closed 188MHz 75MHz 2.5x Pins 7 & 20 closed 200MHz 66MHz 3x Pins 8 & 21 closed CPU SPEED SELECTION (INTEL MMX) CPU speed Clock speed Multiplier JP6 166MHz 66MHz 2.5x Pins 6 & 19 closed 200MHz 66MHz 3x Pins 8 & 21 closed 225MHz 75MHz 3x Pins 9 & 22 closed 233MHz 66MHz 3.5x Pins 10 & 23 closed 266MHz 66MHz 4x Pins 11 & 24 closed 300MHz 66MHz 4.5x Pins 12 & 25 closed 333MHz 66MHz 5x Pins 13 & 26 closed CPU VOLTAGE SELECTION Voltage JP8 2.0v Pins 1 & 6 closed 2.2v Pins 5 & 10 closed 2.8v Pins 2 & 7 closed 2.9v Pins 3 & 8 closed 3.2v Pins 4 & 9 closed