ASRock P55 Extreme4 Motherboard

Voltage Regulator

The ASRock P55 Extreme4 comes with a ten-phase voltage regulator circuit, with eight of them in charge of the main CPU voltage (Vcc, a.k.a. Vcore) and two of them in charge of the VTT rail, which is used by the integrated memory controller, L3 memory cache and other circuits.

This motherboard comes with two passive heatsinks on top of the transistors of the voltage regulator circuit, but they are not connected together by a heatpipe.

All capacitors used on the voltage regulator circuit and on the rest of the motherboard are solid, and all chokes are ferrite models, which are better than iron chokes.

Please read our Everything You Need to Know About the Motherboard Voltage Regulator tutorial for more information.

Figure 9: Voltage regulator circuit

Figure 10: Close-up of the voltage regulator circuit