MSI Z68A-GD80 (B3) Motherboard

Overclocking Options

The MSI Z68A-GD80 (B3) offers some overclocking options, listed below (17.0 B17 BIOS):

• CPU ratio: From x16 to x60 in x1 steps (for unlocked CPUs)
• CPU base clock: From 38 MHz to 282.30 MHz in 0.01 MHz (10 kHz) steps
• CPU core voltage: From 0.800 V to 1.800 V in 0.005 V steps
• CPU VTT voltage ("I/O"): From 0.956 V to 1.550 V in 0.020 V steps
• CPU PLL voltage: From 1.400 V to 2.430 V in 0.010 V steps
• GPU voltage: From 1.000 V to 1.600 V in 0.005 V steps
• Chipset voltage (“PCH 1.05”): From 0.775 V to 1.724 V in 0.005 V steps
• Memory voltage: From 1.108 V to 2.464 V in 0.008 V steps
• Data/Address reference voltage (per channel): From 0.435 V to 1.125 V in 0.025 V steps

For a better understanding of what these options do, please read our Understanding All Voltage Configurations from the Motherboard tutorial.

Figure 11: Overclocking options

Figure 12: Overclocking options

The Z68A-GD80 comes with a button called “OC Genie.” By pressing it, the motherboard w
ill test and find the recommended overclocking settings for your system, allowing you to overclock your PC without having to go through the hassle of changing somewhat complicated settings manually.

Figure 13: OC Genie button

For the enthusiast, the Z68A-GD80 offers voltage measuring points, where you can check the three CPU voltages (Vcc, VTT, and VAXG), the memory voltage, and the chipset voltage using a voltmeter.

Figure 14: Voltage measuring points (FV1 connector)