Gigabyte has nicely grouped the onboard OverClocking features into what they call as the OC Touch zone.Without wasting too many words I let the picture do the talking. Anything you need is located in that area.
Most buttons/switches speak for themselves.
However the TAG button is able to load a customized BIOS profile after a CMOS reset, very handy when benching, no need to go into the bios to load a profile.
The OC Gear button switches between 1MHz and 0.1MHz increments.
The OC Turbo button activates the OC board to tune in the best OC for your processor and onboard RAM.
The Settings Lock button does actually what the names says, it locks the previous good settings.
Thank god MSI introduced the Direct to Bios button on their Z77 MPOWER board, we see this feature on all high end Z87 boards now.
When tweaking your OS you can use the OC Trigger Switch, this drops the CPU multiplier to the lowest possible value of 8X.
No OC targeted board can be without voltage measuring points. Either you use the included measuring cables or directly position your Digital MultiMeter at the pins.
The OC PCIe switch allows you to enable/disable manually the different PCIe slots, for quick debugging which GPU is giving you troubles.
Two more interesting buttons are the CLR Bat button and the Ignition switch.The patended orange Ignition switch keeps on powering your entire setup, besides the CPU. Allowing you to keep the fans spinning while heating up your CPU, thus avoiding the risk of condensation during LN2 sessions. The CLR bat switch has the same function as when you pop the battery to fully clear the CMOS.
The included OC Brace helps benchers to keep their videocards firmly secured, not everybody benches on bench tables :)