Manual
Page 54
...the voltage settings for Southbridge, its PCI Express bus voltage. The option will display "Locked" and read only or will automatically assign by overclocking your system through the increase of the DDR2 voltage, damage to Turbo. Turbo Set Robust Graphics Booster to the memory may occur. Set... Auto Set Robust Graphics Booster to Auto. (Default value) Fast Set Robust Graphics Booster to +0.3V. Set HT-Link voltage to Fast. GA-M59SLI-S5/GA-M59SLI-S4 Motherboard - 54 - English CPU Clock Ratio This setup option will not show up if the CPU ratio is not changeable.
...the voltage settings for Southbridge, its PCI Express bus voltage. The option will display "Locked" and read only or will automatically assign by overclocking your system through the increase of the DDR2 voltage, damage to Turbo. Turbo Set Robust Graphics Booster to the memory may occur. Set... Auto Set Robust Graphics Booster to Auto. (Default value) Fast Set Robust Graphics Booster to +0.3V. Set HT-Link voltage to Fast. GA-M59SLI-S5/GA-M59SLI-S4 Motherboard - 54 - English CPU Clock Ratio This setup option will not show up if the CPU ratio is not changeable.