It's hot and slow. It's hotter by min. 10C from idle to load. It's slower by ~400 mhz. A 10C reduction from decent 100% air cooling to water-cooling is the best one can expect. The Prescott's 10 C higher temp means water-cooling rig is the same as decent 100% air-cooling using Northwood only add to more maintenance of cost. http://www.home.earthlink.net/~lazyman/data/2.E.htm

This is intels first incarnation of the prescott core 8-12 months from now repost and see where it is,there is a method to intels madness. Pentium 4 started out just like this and it turned out pretty well

"there is a method to intels madness." Meaning releasing a product before it is ready and using the general public to get it fixed? I thought MS had a corner on that market. I'd seriously consider good boards with 4 stage power regulation like lazyman's IS7 and IC7's before I tried one of the prescott processors. Looks like a board burner to me. Perhaps the socket "T" chips and boards will be necessary to handle this thing. Skip

I put on some heatsinks (home made)on the MOSFETS. The PWM temp was 40C during load using the IC7 (much better than IS7), and system temp never exceeded 26C which is damn good. The lastest Sandra 2004 Sp1 now reports Prescott CPU wattage. At ~100 watts it's running hotter than similar wattage output of an overclocked Northwood. It's the inherent design change that the Prescott is hot. I did push it to over 3.5 Ghz with 0.05 vcore increase (1.425 volt), and it reached 130 Watts. After one whole day running the new setup (the XDream - loud box), and turned down to 240 FSB @3.37 Ghz the average temp on regular usage is around 46 C. After a game of Combat Flight Sim it never exceeded 60C. My room temp was risen to 24C .... sunny day in Chicago (26C outside)with windows facing south. Granded a few C's lower at default speed, this is the combination of MCX478-V and Chill Vent. There is one more thing I can do ..... using the 15 C lower reporting temp of the P4P800 board ..... I guarantee this board will make some people happy by saying " My Prescott is only running 5C hotter ..from 35 C load to 40C". Here is the funny part ... using an external temp probe under the heatsink. Believe it or not ...... load temp 55C.

Yeah, after my temp reporting problems with that KM2M Combo-L, I tend to believe the thermocouple. Nice that the Chill Vent snaps apart to give the flexibility to use the side panel fan. 130w is gonna be a capacator poppin', voltage regulator eatin' mother on some motherboards. Are you going to continue to play with it? Skip

Hey skip "There is a method to intels madness" I think you would have to agree that intels policy is to make money. Now are there business practices ethical, well I would have a hard time defending that. Would I buy a prescott chip right now...NO. But Joe average consumer will and in the next 12 months or so when the core is modified and begins to ramp towards 5 ghz I probably will upgrade at that point. I do not know of anyone up to now that was forced at gunpoint to buy a intel cpu. I know this is an AMD site but give intel there due, they are a money making machine and there p4 is not such a bad chip now is it...

Unless I've missed something, this ain't an AMD site...I think most of us have to make the choice between a Xeon and beans & cornbread. Anyway, lazyman went to the store and bought a new thermocouple and is still testing his Prescott because motherboard reported temps don't sit well with him. He'll stick with it a few days and publish more results. And sure, if we're talking the lesser of evils, I'd like to see Intel stay in business. They sold P60's that didn't make the P66 cut to companies like Packard Bell instead of throwing them away and, because of that, I'd like to think some of us saved money on the later Intel products we bought. Skip