| R539
            
  | 
      
      
        * CPU : 
          Supports Socket 7 for  
          - Intel Pentium 90 to 233MHz, P55C (MMX) 
          - Cyrix / IBM 6x86, 6x86L, 6x86MX (M2). 
          - AMD K5, K6 and other compatible CPUs. | 
      
      
        | * Chipset : 
          INTEL 430TX (82439TX, 82371AB). | 
      
      
        | * Supports 512K 
          Pipelined Burst SRAM in Second Level Cache. | 
      
      
        * Supports 4 x 
          72-pin SIMM Sockets (2 Banks) DRAM and 2 x 168-pin DIMM SDRAM 
          Sockets(2 Banks). 
          - The Memory size from 4MB to 256MB. 
          - Supports Fast Page Mode (FP) and Extended Data Output (EDO) DRAM. 
            and SDRAM. | 
      
      
        | * Four 16-bit 
          ISA Slots and Four 32-bit PCI Master Mode Slots. | 
      
      
        * 2 x IDE 
          Connectors for up to 4 IDE Drivers 
          - PIO Mode 4 transfers & Ultra IDE Mode. 
          - PCI Bus Master Mode IDE interface. | 
      
      
        * Universal 
          Serial Bus Controller. 
          - Host / HUB Controller. 
          - Two USB Ports | 
      
      
        * On Board I/O 
          supports : 
          - 2 Serial Ports (16550 Fast UART compatible ). 
          - 1 Parallel Port ( ECP and EPP capabilities ). 
          - 1 Floppy Disk Controller ( Supports Two FD Drivers ). 
          - 1 PS/2 Mouse Connector. 
          - 1 IrDA Connector. | 
      
      
        | * Flash ROM 
          BIOS with Green, Plug and Play Features. | 
      
      
        | * AT Form 
          Factor : 22cm x 28cm or 8.7" x 11" (4 Layers). |