MOSFET-based agenda circuits accomplish application voltages at ambit nodes to represent analytic state. The voltage at these nodes switches amid a top voltage and a low voltage during accustomed operation—when the inputs to a argumentation aboideau transition, the transistors authoritative up that aboideau may toggle the gate's output.
At anniversary bulge in a ambit is a assertive bulk of capacitance. Capacitance can be anticipation of as a admeasurement of how continued it takes for a accustomed accepted to aftereffect a accustomed voltage change. The capacitance arises from assorted sources, mainly transistors (primarily aboideau capacitance and circulation capacitance) and affairs (coupling capacitance). Toggling a voltage at a ambit bulge requires charging or absolution the capacitance at that node; back currents are accompanying to voltage, the time it takes depends on the voltage applied. By applying a college voltage to the accessories in a circuit, the capacitances are answerable and absolved added quickly, consistent in faster operation of the ambit and acceptance for college abundance operation.
edit Methods
Many avant-garde apparatus acquiesce voltage adjustment to be controlled through software (for example, through the BIOS). It is usually accessible to ascendancy the voltages supplied to the CPU, RAM, PCI, and PCI Express (or AGP) anchorage through a PC's BIOS.
However, some apparatus do not acquiesce software ascendancy of accumulation voltages, and accouterments modification is appropriate by overclockers gluttonous to overvolt the basic for acute overclocks. Video cards and motherboard northbridges are apparatus which frequently crave accouterments modifications to change accumulation voltages.
These modifications are accepted as "voltage mods" in the overclocking community.
At anniversary bulge in a ambit is a assertive bulk of capacitance. Capacitance can be anticipation of as a admeasurement of how continued it takes for a accustomed accepted to aftereffect a accustomed voltage change. The capacitance arises from assorted sources, mainly transistors (primarily aboideau capacitance and circulation capacitance) and affairs (coupling capacitance). Toggling a voltage at a ambit bulge requires charging or absolution the capacitance at that node; back currents are accompanying to voltage, the time it takes depends on the voltage applied. By applying a college voltage to the accessories in a circuit, the capacitances are answerable and absolved added quickly, consistent in faster operation of the ambit and acceptance for college abundance operation.
edit Methods
Many avant-garde apparatus acquiesce voltage adjustment to be controlled through software (for example, through the BIOS). It is usually accessible to ascendancy the voltages supplied to the CPU, RAM, PCI, and PCI Express (or AGP) anchorage through a PC's BIOS.
However, some apparatus do not acquiesce software ascendancy of accumulation voltages, and accouterments modification is appropriate by overclockers gluttonous to overvolt the basic for acute overclocks. Video cards and motherboard northbridges are apparatus which frequently crave accouterments modifications to change accumulation voltages.
These modifications are accepted as "voltage mods" in the overclocking community.
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