Gigabyte AMD Socket 939 Processor Motherboard GA-K8NF-9-RH User Manual page 44

Chipset core PCI-E voltage
Normal Set chipset core PCI-E voltage as Core Power required. (Default value)
+0.1v Increase chipset core PCI-E voltage +0.1V.
+0.2v Increase chipset core PCI-E voltage +0.2V.
+0.3v Increase chipset core PCI-E voltage +0.3V.
HT-Link voltage control
Normal Supply HT-Link voltage as HT-Link required. (Default value)
+0.1v Increase HT-Link voltage +0.1V.
+0.2v Increase HT-Link voltage +0.2V.
+0.3v Increase HT-Link voltage +0.2V.
DDR voltage control
Normal Supply DDR voltage as DDR required. (Default value)
+0.1v Increase DDR voltage +0.1V.
+0.2v Increase DDR voltage +0.2V.
GA-K8NF-9-RH Motherboard - 44 -