PLL in compaq presario 2500

Hello, i am trying to find the PLL in my compaq presario 2500, does anyone know were it is or what it is?
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More about compaq presario 2500
  1. your bios locked .. and can't recommend OC !
  2. PLL is the phase-locked loop electronic circuit, usually a VCO (Voltage Controlled Oscillator), that generates the various clock signals for components like the CPU, PCI Express bus, Memory bus, PCI bus, etc. They are usually configured as frequency multipliers, dividers, demodulators, tracking generators or clock recovery circuits.

    Consumer PCs, including notebooks, don't have a full-featured (i.e. unlocked) BIOS that would allow you to change settings like Internal PLL Overvoltage or CPU PLL voltage or PCH PLL voltage. None of these companies want to support the problems that would arise if settings like these were exposed in the BIOS and some noob changed the settings to the point where the PC won't run properly.
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