Oh lawry relax I will get to your bios. Good grief take a pill. Oh and in case you are unaware, this is a thread started by you but it and all posts that get submitted here are the property of Xtreme Systems. Not yours, not mine, all theirs. Look it gets a little frustrating trying to bring peoples systems along when it takes forever to get just what they have for hardware in their systems and then trying to find out just how they are attempting to Over clock their systems.

I will make a Blanket statement to all right now that the P5WDH Should only be Overclocked Manually. Use no profiles, No %ages. Just Manually.

Let Heat determine your cpu voltage. i have excellent liquid cooling.
My e6600 is coming up on one year of 1.65 pretty much daily. Some days higher, some lower, it has never seen less than 1.55volts in bios. Never.

Don't be afraid, your cpu can take it. So long as you can keep temps in perspective.

I don't post here to make anyone person happy and anytime someone is only posting about ditching this board for their favorite board that is thread crapping and I am sure as hell going to say so.

I am not made of money. I have the same 6400 and 6600 I started with. I can't afford to cherry pick out of dozens. I get what I get and I make that work. I don't use super cooling as it is for the most part best suited for benching. All my computers live in cases. I try to bench not at my highest most clock but rather my highest stable clocks as I use my systems for video rendering. I need tham fast and stable. At 3825mhz daily my e6600 on this P5WDH is extremely fast and stable. my 6400 runs at 3600mhz daily and is air cooled. that is on a different board and I don't discuss it here.

w2richwood I don't think there would be any advantage in going back to either of those bios'. Unfortunately the 6400 is not really a great match for these boards as the board just can't hit a high enough clock for the chip. I ran the 6400 for a couple weeks while i waited for my 6600 to come in. I found my max stable to be around 435fsb which was just well below what the chip could do. But, that was all this board would do (Stable). It does much better with the 6600 simply because of the higher multiplier.
I believe the best bios may well have been the 1707 at least for me. Best bios seems to vary board to board.

WZ