Hi there, I found in my bookshelf an old motherboard that had been really good for overclocking CedarMill CPUs before people was starting using x48 board for that. I managed to reach 8GHz with that board. Here is that result http://hwbot.org/submission/996270_maj0r_cpu_frequency_pentium_4_631_8040_mhz.
This board is ASUS Commando. There is one problem with it - some elements burnt and after that repaired.
As you can see at the picture two elements have been removed(they are in red circles). Without them board is working well, but I have no idea how it overclocks. I'm selling that board as is, without warranty or moneyback. I checked twice that it works. I want just 50 USD plus shipping from Ukraine.