P4 660 + Ln2

[cold_ice]

I had this P4 660 laying around for many weeks, because I had no time for testing. First the hardware I have used:
P4 660
Asus P5WD2 Premium
512mb Kit Crucial Ballistix PC-5300 3264AA664
Zippy Emacs 460w PSU
ATI PCI graphicscard

The CPU did about 4,55ghz with boxed fan and 1,5v. Not too bad I think. On monday I got the LN2.

My solid copper container




Ready to start


Let the fun beginn










Broke the 6ghz border yesterday


Validation Link: http://valid.x86-secret.com/show_oc.php?id=47729


At the startup I had really bad problems. The mainboard won't start when the temperature of the conatiner is colder than -110°... ok. But sometimes I doesn't boot even with very low clocks, for example 5ghz. No idea whats the problem here, because it's running stable in windows with 6ghz and more.
I really like the solid conatiner. At the beginning I need a lot of LN2 to get to a low temp, maybe one litre or more. But when it reaches -100° then small squirts of LN2 are enough to keep it at low tenperatures--> about -175° at the base when the CPU is running SuperPI with 6ghz and 1,7v. When it crashed at about 6,3ghz I had to wait more than an hour to restart again, because the temp on the conatiner rose so slowly.
I wanted to try to get higher clocks today, but the mainboard semms to be dead It does nothing when I hit the power button. Must get a new one

I hope I can push this CPU further, but I'm already looking for a P4 670