MSI 990FXA-GD80 Motherboard

Overclocking Options

The MSI 990FXA-GD80 offers some overclocking options, listed below (1.0 BIOS):

• CPU base clock: From 190 MHz to 690 MHz in 1 MHz increments
• PCI Express clock: From 90 MHz to 190 MHz in 1 MHz increments
• CPU core (VDD) voltage: From 0.989000 V to 1.986500 V in 0.0105 V increments
• CPU PLL voltage: From 2.047650 V to 3.127993 V in 0.0101 V increments
• Memory controller (“CPU-NB,” VDDNB) voltage: From 0.796934 V to 1.845100 V in 0.01133 V increments
• North bridge (NB) voltage: From 0.964 V to 1.303 V in 0.005 V increments
• South bridge (SB) voltage: From 0.624500 V to 1.575500 V in 0.03200 V increments
• HyperTransport Voltage: From 0.963600 V to 1.572330 V in 0.01240 V increments
• North bridge PCI Express voltage: From 1.131600 V to 2.0955360 V in 0.035 V increments
• Memory voltage: From 1.442 V to 1.906 V in 0.007 V increments
• Memory reference voltage: From 0.519034 V to 1.164266 V in 0.0314 V increments
• Memory termination (VTT) voltage: From 0.509334 V to 1.166266 V in 0.025266 V increments

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 990FXA-GD80 comes with a button called “OC Genie.” By pressing it, the motherboard will 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