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Voltage Regulator

The ASRock N68C-S UCC motherboard, being a low-end motherboard, comes with a very simple three-phase voltage regulator. These three phases produce the CPU main voltage (VDD or “Vcore”). On this motherboard the memory controller voltage (VDDNB) is hardwired to the CPU main voltage, making it to be a socket AM2+ motherboard. Socket AM3 motherboards have a separate voltage regulator for the CPU memory controller (i.e., the voltage used by the memory controller is not the same as the voltage used to feed the rest of the CPU). That is why, even though this motherboard has DDR3 memories, it is still a socket AM2+ motherboard and not a socket AM3 model. For more information, read our Everything You Need to Know About the Motherboard Voltage Regulator Circuit tutorial.

Most of the electrolytic capacitors used in the voltage regulator circuit are from OST, but three of them are Japanese, from Chemi-Con. All other electrolytic capacitors used on this motherboard are from OST. Only one capacitor located on the memory voltage regulator is solid. No cooling solution is used on the voltage regulator.

ASRock N68C-S UCC motherboardFigure 6: Voltage regulator circuit

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Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.