PT-P4X266A-A 
    VIA? Apollo P4X266A Chipset
    
    General Specifications
    CPU
    Socket 478 for Intel? FC-PGA2 Pentium?4
    (Willamette/Northwood) On-die 256KB/512KB L2 Cache
    FSB 400MHz Front Side Bus
    Chipset
    VIA? VT8753A (VIA Apollo P4X266A) Chipset
    VIA? VT8233A South Bridge
    BIOS
    2Mb Flash ROM,Award BIOS,PnP,DMI2.0
    Supports Green & Soft Off Function and Multiple boot-up
    Green Function
    Power saving supported in BIOS and ACPI & APM function
    Memory Support
    Three 184-pin DDR sockets
    Up to 4.0GB of PC2100/PC1600 DDR
    Expansion Slots
    5 x PCI Slots support 33MHZ and PCI compliant
    1 x CNR (Communication Network Riser) Slots
    High Speed Multi I/O
    USB Port
    2 x USB connectors (optional)
    2 x USB header support
    Keyboard and Mouse
    1 x PS/2 Keyboard Port
    1 x PS/2 Mouse Port
    Parallel Port
    1 x Parallel Port
    SPP,EPP and ECP mode
    Serial Port
    1 x Serial Port
    Floppy Port
    1 x Floppy disk drivers (1.44MB or 2.88MB) IDE Ports
    IDE1,IDE2 (Ultra DMA66/100/133) operation mode
    IR Ports
    1 x IrDA TX/RX header
    Hardware Monitoring
    3 x FAN Sensor
    Audio
    Audio Ports
    1 x Audio I/O (Optional) Port
    1 x Game/MIDI (Optional)
    AC'97 Digital Audio controller, LINE-in/out CD-in, Mic-in 
    AC'97 Compliant 3D Audio
    Display Controller
    AGP Support
    1 x AGP 4X /2X
    Option
    Network interface Controller
    RTL8100 10/100Mbps LAN Controller
    1 x RJ45 LAN Port
    1 x Memory Stick Digital and Smart Card header
    Environmental and Power
    CPU Power
    Onboard PWM switching power supply for autodetects CPU core voltage
    System Monitoring and Alarm
    CPU and System temperature, system voltages and cooling fan RPM
    Operation Temperature
    0 to 55°C (32 to 131°F)
    Power Connector
    ATX Power supply connector
    Board Size
    ATX 305mm x 210mm