Biostar P4TDH Setup Manual page 49

3. Voltage Panel
Click the Voltage button in Main Panel, the button will be highlighted and the
Voltage Panel will slide out to up as the following figure.
In this panel, you can decide to increase CPU core voltage and Memory voltage
or not. The default setting is "No". If you want to get the best performance of
overclocking, we recommend you click the option "Yes".
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