We dropped the multiplier on our E6600 to 7 and were able to reach the maximum BIOS allowable FSB of 511 without an issue. Due to the clockgen controller utilized the current BIOS is limited to 511 although the included AMD System Manager allows you to soft overclock the FSB within windows. However, we were never able to go above 518FSB without encountering lockups or system shutdowns. Still, we were extremely impressed with the stability of this board at the maximum FSB level.
The system did not behave any differently whether it was at 511 or 266 which is a testament to the engineering effort put forth by DFI into this board. However, to reach these settings we had to run several of the Northbridge voltages near their maximum that resulted in additional cooling being required for the heatsink along with Northbridge temperatures increasing from 30C to 58C during testing.
We will provide our BIOS settings in the next article but for now this board makes for an excellent overclocking platform due to its stability and flexibility. Achieving high overclocks with stability took some time and effort when dialing in the proper memory and voltage settings. Once that was accomplished the results were certainly impressive, so for users that have the inclination to invest time tweaking their systems for maximum performance, the DFI ICFX3200-T2R won't disappoint.
http://anandtech.com/mb/showdoc.aspx?i=2891&p=3
