Gigabyte GA-H55M-USB3 Motherboard
Voltage Regulator
Contents
The voltage regulator circuit from Gigabyte GA-H55M-USB3 has four phases for the CPU main voltage (Vcore), two phases for the CPU integrated memory controller (VTT rail) and one phase for the CPU integrated video controller. This configuration is better known as “4+2+1.”
All capacitors used on the voltage regulator circuit and on the rest of the motherboard are solid, all chokes are ferrite models, which are better than iron chokes, and the transistors provide low RDS(on) – i.e., low power loss, making the CPU/motherboard to consume less. Please read our Everything You Need to Know About the Motherboard Voltage Regulator tutorial for more information.
Figure 6: Voltage regulator circuit.
This motherboard features a technology called “Dynamic Energy Saver 2” that reduces the number of phases from the voltage regulator circuit as needed in order to save energy. This board has four LEDs that display the number of CPU phases being used.
See in Figure 6 how this motherboard uses an EPS12V connector for the CPU.