ASUS X99-A Motherboard
Voltage Regulator
Contents
The CPU voltage regulator circuit of the ASUS X99-A has eight phases for the CPU. The voltage regulator is controlled by an ASUS DIGI+ ASP1257 chip, using a digital design. Each phase makes use of one NTMFD4C85N integrated circuit.
Figure 10: Voltage regulator circuit
The ASUS X99-A uses solid electrolytic capacitors with a 5,000-hour life-span, twice the amount presented by regular solid capacitors. All coils on this motherboard are ferrite-core models, which can provide up to 20% improvement in efficiency.
If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.