I just got water cooling, I've got a radiator stuck to a 120 MM fan, a copper heatsink, and a good swiftech 230 G/hour pump... THIS SHOULD NOT BE HAPPENING! For whatever reasont eh Cpu temp monitor on my motherboard doesn't work (only ever says 43 or 44 degrees ever) so I can't tell what's goin on. It's a new P4X400 SOYO DRAGON Ultra Platinum MOBO (anyone have any suggestions for that problem). When my system crashes i feal radiator adn it is fairly hot, much more than it should be. idle it can be cold though. it this a water flow prob?

I don't know anything about water-cooling. But try updating your bios for the temperature-reading difficulties.

i think thats what u exspect from water cooling. i saw a review where they compaired a slk 800 with a Thermaltake Aquarius II Water Cooling System and the slk won. dont know could be reading right. i heard if u use car coolant it makes it so much cooler are u using water?

Is this watercooling system attached to your PSU? If so it may be overloading your PSU causing your computer to crash.

Not to sound like a noob, but what is PSU... oops, I sounded like a noob. As for the water or anti-freeze chemical stuff it's running water which should work, but I like the idea so I may give that a try. Now that I think about it I think the prob. is that my resevoir I made, (if you see my site (http://www.egood.kekela.net/Mod/) you'll get why I made my own, anyway the one I made which is kindof a replica of teh one on the site sucks the water out on the bottum but also shoots it in on the opposite side of the bottum, so it would make sense that it overheats if it keeps running water the radiator couldn't cool down all the way back through the cpu when the cpu is running a full load, yet when the cpu is running a light load it cools all of the water really fast cause the same water is going through the radiator a ton. I guess I'll move the tube connection that lets the water back in to the top of the resevoir so all of the water will cycle. Thanks for your suggestions guys.

usually water cooling should keep you temps lower. the water should go from the tank to the pump, the waterblock and then rad and back to tank. how much air is your fan pushing though the rad?

that's the order I have. The fan on my radiator is rated at 20 cfm. Some air deflects out on the edges where the fan overlaps the radiator a little bit, but the greatest bulk has to be going in.