User guide

NVIDIA nForce 590 SLI Technology Chipset Overclocking
DU-02451-001_v01 13
05/17/06
Fine-Tune CPU Reference Clock
Go to NVIDIA nTune 5.0 to adjust the frequency using the Reference Clock
(HTT)
setting from NVIDIA nTune Motherboard Settings control panel as shown
in Figure 6. This action incrementally adjusts the reference clock and allows for
dynamically testing for system stability.
Figure 6. Adjusting CPU Reference Clock using NVIDIA
nTune 5.0
Tip: In nTune, use Left and Right keyboard buttons to make small increments
or decrements for the CPU Reference clock (HTT) slider value.
Incrementing voltages slightly can provide more overclockability.
A CPU reference clock value of 300 MHz is an achievable target, and in some cases
the interface can be overclocked much more depending on the speed of the AMD
FX-62 CPU and nForce 590 SPP chips. Chip speeds vary due to the manufacturing
process variations of the ASICs–application specific integrated circuits.