Despite being a high density memory of 4GB the modules still managed to overclock quite well. When lowering the timings to 4-5-5-12 with 2.1v we managed to get the memory to 615MHz which is 215MHz over the stock speed of 400MHz (DDR2-800) that the modules are designed to run at, which we were extremely impressed with.
Important Editor Note: Our maximum overclocking result is the best result we managed in our limited time of testing the motherboard. Due to time constraints we weren't able to tweak the motherboard to the absolute maximum and find the highest possible FSB, as this could take days to find properly. We do however spend at least a few hours overclocking every motherboard to try and find the highest possible overclock in that time frame. You may or may not be able to overclock higher if you spend more time tweaking, or as new BIOS updates are released. "Burn-in" time might also come into play if you believe in that.