Fast changes, fine; stabilizing at max peak temp in under 10 seconds, no.
If chip thermals worked like this, my life as a heatsink reviewer would be 1000 times easier.
The ITE software DFI includes with the board updates quicker than once/second; more like every 0.5 seconds. This is why the behavior seems incredibly strange to me; what it does, makes no sense. No part of the die of any CPU can go from idle to maximum peak load temp in under 10 seconds. I'm sure you agree. If it takes up to 30 minutes to stabilize even the slowest portion of a Pentium 4's die, there is absolutely, positively no way that the quickest to stabilize section will do it in under 10 seconds. I tested it last night; it rose from the idle of 38C to 49C in ~5 seconds flat. I then let it sit to see what it would do; I let it sit for a full hour and it was still at 49C. I kept an eye on it the whole time and it never changed; no 48C, no 50C. 49C for an hour straight. And as I said, the updates are at least every half second. I'll shoot a quick video of it later today when I get home, using my digital camera. You'll see what I see. I'll then shoot another video 30 minutes later, and another 60 minutes later.
Also, you know as well as I do that there's no way a chip will drop from full load temp back to just 3C over ambient in the same ridiculously short 5 second time frame right after removing the load on the chip. I'll shoot a video of this as well and share it with you guys. None of this behavior makes any sense whatsoever.
Btw; I'm not the only one getting this problem.
Apparently, the beta BIOSes by Oskar Wu solve the problem (supposedly), so I will give his BIOS a try. The thing that concerns me is how could DFI release a board to the general public with the thermal sensor acting this way, particulary one that is supposedly designed to be the ultimate overclocking board--thermals are critical in overclocking.