NVIDIA nForce 590 SLI Technology Chipset Overclocking
DU-02451-001_v01
8
05/17/06
A Systematic Approach
A step-by-step approach helps simplify the complex task of overclocking, described
in the following steps:
1.
CPU reference clock (HTT)
2.
CPU HyperTransport interface speed
3.
CPU core clock frequency
4.
DDR2 memory interface frequency & timing
5.
Balance the results achieved with CPU frequency, HyperTransport, and
memory overclocking
6.
Overclock the PCI Express x16 buses
7.
Increase the NVIDIA nForce 590 SLI MCP HyperTransport bus frequency
8.
Boost the GPU core and memory frequencies
Each of the following sections provides guidance on how to tweak an NVIDIA
nForce 590-SLI technology chipset based PC system based on this step-by-step
approach.
The first steps for overclocking the CPU reference clock, CPU HyperTransport bus,
CPU frequency, memory interface, PCI Express, and MCP HyperTransport link are
done in the SBIOS. Some system settings, such as CPU multiplier and memory
drive strength parameters, can only be adjusted in the SBIOS.
Once you use the SBIOS for an initial pass at overclocking, you then fine-tune the
settings with NVIDIA nTune 5.0. NVIDIA nTune provides flexibility to adjust
majority of parameters that affect overclocking in a Windows environment, allowing
for dynamic system overclocking and stability testing without the need for constant
system reboots.
Note:
Start NVIDIA nTune 5.0 from
Programs
>
NVIDIA Corporation
>
nTune
. Refer to the application’s on-line help for more information about
the nTune 5.0 features and settings.
The system configuration used in developing this guide is as follows:
CPU:
AMD Athlon™ FX-62
Motherboard:
Foxconn C51XEM2AA
Graphics:
Dual NVIDIA GeForce 7900GTX SLI
CPU Cooler:
Zalman
CNPS9500AM2
Memory:
Corsair TWIN2X2048-8500C5 with Enhanced
Performance Profiles (EPP) Technology
