Performance Tuning Guide

Intel DX58SO2/DX58OG Desktop Board Performance Tuning Guide
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4.3 Intel Core i7-920 non-Extreme Edition
Processor on Intel Desktop Board DX58OG
Figure 4.3 shows the BIOS settings to achieve a processor speed of 3.98 GHz with an
Intel Core i7-920 processor. A host clock setting of 181 MHz was used. A memory
speed of 1448 MHz was obtained using a memory multiplier of 8 when combined with
the host clock setting of 181 MHz. With the Intel Core i7-920 processor, the QPI data
strap is locked at 4.8 GT/s, resulting in an overall QPI data rate of 6.518 GT/s when
combined with the 181 MHz host clock setting. No processor thermal throttling
occurred during stress testing with these settings.
These results were obtained on a Intel Desktop Board DX58OG with XMP 2133
memory installed. The board was located on an open bench top and the processor
was air cooled using an Intel tower model E88216-001 fan heatsink.
Figure 4.3 3.98 GHz on an Intel Desktop Board DX58OG with an
Intel Core i7-920 Processor Using Host Clock Changes