Nvidia NFORCE 680I - Manual (Page 60)

Save Timing/Voltage Set
This function saves the system voltages and timing settings that were defined in the
System Voltages menu. There are four profile options that can be loaded. The default
setting is Auto for all settings. Press Enter to see the options.
System BIOS Cacheable
This function allows you to enable or disable caching the system BIOS.
HPET Function
This function allows you to enable or disable the High Precision Even Timer (HPET). When
Enabled, HPET is used as the timing hardware for multimedia and other time-sensitive
application. When HPET is Disabled, the APIC timer is used.
NVIDIA GPU Ex
To enable or disable this function you need to have the NVIDIA ForceWare ® graphics
driver with NVIDIA EX support. When enabled, the system uses the optimized NVIDIA EX
graphics driver.
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Installing and Configuring the BFG NVIDIA nForce 680i LT SLI Motherboard