Biostar TP67XE Motherboard
Voltage Regulator
Contents
The CPU voltage regulator circuit of the TP67XE has 10 phases, eight for the CPU main voltage (Vcc a.k.a. Vcore), and two for the CPU VTT voltage (integrated memory controller and L3 memory cache). Therefore it uses a “8+2” configuration.
Each phase uses three MOSFET transistors with low RDS(on), meaning higher efficiency, and one ferrite-core coil, which also improves efficiency (lower energy loss compared to iron coils). All electrolytic capacitors used on this motherboard are solid. If you want to learn more about the voltage regulator circuit, please read our tutorial on the subject.
Figure 8: Voltage regulator circuit
Figure 9: Voltage regulator circuit
If you pay attention, you will see two EPS12V connectors. You can use either one of them. Biostar recommends to use a power supply with two EPS12V connectors only when you overclock your system.
A series of ten LEDs show which phases are currently active.
Figure 10: Active phases LEDs