ASRock 880GXH/USB3 Motherboard

Voltage Regulator

ASRock 880GXH/USB3 comes with a five-phase voltage regulator circuit. From the five available phases, four are used to generate the CPU main voltage (VDD, a.k.a. Vcore) while the other one is used to generate the VDDNB voltage (which feeds the integrated memory controller, the integrated HyperTransport bus controller and the integrated L3 memory cache). Thus this motherboard has a “4+1” configuration.

This motherboard comes with a passive heatsink installed on top of the transistors of the voltage regulator circuit. This motherboard uses only solid capacitors and ferrite chokes, which are better than iron chokes. Please read our Everything You Need to Know About the Motherboard Voltage Regulator tutorial for more information.

Figure 6: Voltage regulator circuit.

Figure 7: Voltage regulator circuit.