To je na napajanie flash ROM a RTC/CMOS chipu, co je skryty vnutri socketu. Odmeraj, ci je na VPP aj VCC pinoch toho socketu 5V.
Kód:
Flash ROM pinout (32-pin DIP):
          _____KEY_____
    VPP -|     \_/     |- VCC     VPP = Programming voltage (12V)
    A16 -|             |- #WE     VCC = Operating voltage (5V)
    A15 -|             |- A17     GND = Ground
    A12 -|             |- A14     A0..A17 = Address input pins
     A7 -|             |- A13     Q0..Q7  = Data input/output pins
     A6 -|             |- A8      #WE = Write enable
     A5 -|             |- A9      #OE = Output enable
     A4 -|             |- A11     #CE = Chip enable
     A3 -|             |- #OE     (# means active low signal)
     A2 -|             |- A10
     A1 -|             |- #CE     Notes:
     A0 -|             |- Q7        - some chips have #RESET instead of VPP
     Q0 -|             |- Q6        - this is 256KB chip
     Q1 -|             |- Q5        - 512KB chips have A18 instead of VPP
     Q2 -|             |- Q4        - 128KB chips have NC instead of A17
    GND -|_____________|- Q3        - 64KB chips have NC instead of A17 & A16
Nemas tam ROMku opacne (resp. niekto ju mozno dal opacne)? Ak ano, tak vymenit za novu (a naflashovat tam, samozrejme, spravny BIOS). Este by mohol byt teoreticky odpaleny ten RTC/CMOS chip.