EFA CORPORATION P55T2PIO (REV. 2.0), P55T2SPIO (REV. 2.0) Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/110/120/133/150/166/200MHz Chip Set Intel Video Chip Set None Maximum Onboard 512MB Memory Maximum Video None Memory Cache 256/512KB BIOS Award Dimensions 280mm x 220mm 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), USB connectors (2), IR connector, audio bus slot NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse interface J2 Parallel port J18 External battery J3 Serial port 1 J20 IR connector J7 Serial port 2 J21 IDE interface LED J8 Floppy drive J22 interface Green PC connector J10 USB connector J23 Reset switch J11 USB connector J24 Speaker J13 IDE interface 1 J25 Turbo LED J15 IDE interface 2 J26 Turbo switch J16 32-bit PCI slots PC1 - PC4 Power LED & keylock J17 Audio bus slot SL1 USER CONFIGURABLE SETTINGS Function Label Position » Monitor type select color JP12 Open Monitor type select monochrome JP12 Closed » CMOS memory normal operation JP13 Open CMOS memory clear JP13 Closed DRAM refresh rate select 66MHz JP14 Open DRAM refresh rate select 60MHz JP14 Closed Flash BIOS normal operation JP17 Pins 2 & 3 closed Flash BIOS recovery mode JP17 Pins 1 & 2 closed Sound interface enabled JP18 Pins 1 & 2 closed Sound interface disabled JP18 Pins 2 & 3 closed » Flash BIOS voltage select 5v JP19 Pins 2 & 3 closed Flash BIOS voltage select 12v JP19 Pins 1 & 2 closed » BIOS type select 1MB EEPROM JP21 Pins 1 & 2 closed BIOS type select 2MB EEPROM JP21 Pins 2 & 3 closed » PS/2 mouse IRQ12 enabled JP24 Closed PS/2 mouse IRQ12 disabled JP24 Open 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 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 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 128MB (2) 16M x 36 None 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 256MB (2) 32M x 36 None 264MB (2) 32M x 36 (2) 1M x 36 272MB (2) 32M x 36 (2) 2M x 36 288MB (2) 32M x 36 (2) 4M x 36 320MB (2) 32M x 36 (2) 8M x 36 384MB (2) 32M x 36 (2) 16M x 36 512MB (2) 32M x 36 (2) 32M x 36 Note: Board also accepts x 32 SIMMs. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (2) 32K x 32 None (1) 16K/32K x 8 512KB (2) 32K x 32 (2) 32K x 32 (1) 16K/32K x 8 Note: The location of banks 0 & 1 are unidentified. CACHE TAG CONFIGURATION Type JP1 Aster 16K x 8 Pins 1 & 2 closed Winbond 16K x 8 Open 32K x 8 Pins 2 & 3 closed CACHE TYPE CONFIGURATION Type JP7 Write through Closed Write back Open CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier JP5 JP6 JP11 JP15 JP16 speed speed 100MHz 50MHz 2x Closed Closed Open 1 & 2 & 3 2 110MHz 55MHz 2x Open Open Open 1 & 2 & 3 2 120MHz 60MHz 2x Open Closed Closed 1 & 2 & 3 2 133MHz 66MHz 2x Closed Open Closed 1 & 2 & 3 2 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AMD/INTEL) CPU Clock Multiplier JP5 JP6 JP11 JP15 JP16 speed speed 75MHz 50MHz 1.5x Closed Closed Open 2 & 2 & 3 3 90MHz 60MHz 1.5x Open Closed Closed 2 & 2 & 3 3 100MHz 66MHz 1.5x Closed Open Closed 2 & 2 & 3 3 120MHz 60MHz 2x Open Closed Closed 1 & 2 & 3 2 133MHz 66MHz 2x Closed Open Closed 1 & 2 & 3 2 150MHz 60MHz 2.5x Open Closed Closed 1 & 1 & 2 2 166MHz 66MHz 2.5x Closed Open Closed 1 & 1 & 2 2 200MHz 66MHz 3x Closed Open Closed 2 & 1 & 2 3 Note: Pins designated should be in the closed position. CPU TYPE SELECTION Type JP8 JP10 P54C (3.4v) Pins 2 & 3 closed Pins 1 & 3, 2 & 4 closed P55C (2.5v) Pins 1 & 2 closed Pins 3 & 5, 4 & 6 closed P55C (2.8v) Pins 4 & 5 closed Pins 3 & 5, 4 & 6 closed CPU VOLTAGE SELECTION Voltage JP3 3.3v (STD) Pins 1 & 2 closed 3.4v (VR) Pins 2 & 3 closed 3.5v (VRE) Pins 4 & 5 closed MULTI I/O SELECTION Setting JP4 JP9 Enabled Pins 2 & 3 closed Pins 1 & 2 closed Disabled Pins 1 & 2 closed Pins 2 & 3 closed