captthunderpnts

Vdroop is when your CPU voltage goes lower than the set value due to stress and passing through MOSFETS. Another example if that is: say you are listening to music in your car. You have a really nice system with aftermarket head unit, subwoofer, and two amps to cover all 5 (or however many you have) speakers. With the volume turned up (inducing stress), your lights blink to the music because you haven't enough amperage to supply to everything. See that due to stress on the electrical system, your 13.8v-14.4v current is being momentarily dipped down to say 11.6v.

Virtually all PCs are succeptible to vdroop. A good way to really check it out is note your BIOS voltage settings. Boot the computer up and open up CPU-Z and look at the voltage value. Because no system is perfect, I can guarantee that you will have at least some vdroop present.

There are ways to combat the symptoms, such as overvolting, or another just as popular remedy, the pencil mod. Basically you are lowering resistance in a given adjacent MOSFET, or the like, to compensate for the loss in voltage at load.