MSI Z97I GAMING AC Manual page 80

▶ CPU Current limit (A) [Auto]
Sets maximum current limit of CPU package in Turbo Boost mode. When the current
is over the specified limit value, the CPU will automatically reduce the core frequency
for reducing the current.
▶ Internal VR OVP OCP Protection [Auto]
Enables or disables the over-voltage protection and over-current protection for CPU
internal VR (Voltage Regulator).
[Auto] This setting will be configured automatically by BIOS.
[Enabled] Sets the voltage limit on the CPU internal VR for over-voltage protection
and over-current protection.
[Disabled] Disables this function for overclocking.
▶ Internal VR Efficiency Management [Auto]
Enables or disables the CPU internal VR efficiency management.
[Auto] This setting will be configured automatically by BIOS.
[Enabled] Enables the VR effciency management for power-saving control.
[Disabled] Disables this function.
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BIOS Setup 3-26