Since I've found a better way to get temperature readings with this motherboard (ITS Smartguardian seems to be off with this motherboard) I needed to retest the last heat sink I reviewed on this system so we could have some sort of reference point.

Here are a few idle temperature screenshots of the Sunbeam Silent Whisper I reviewed earlier.

Using Orthos to get both processors running (Prime 95 on the AMD processor only works one core).

Look at the temps.

Okay, now that we've got a baseline to work from, let's install the Freezer 64 and look at the performance.  Here's the idle temperature.

Starting up Orthos.

An hour later, here are the temperatures after crunching some numbers.

After 9 more hours...

Twenty-four hours after we started and we're done with the stress testing.  Now I can use my main PC again!

The testing in the first 24 hours showed that one side was cooling better than the other as one core is always 5 degrees warmer in the coretemp readings.  As we look at the PWMIC it is in the red and also up 5 degrees, so the Freezer 64 isn't keeping that as cool as the Sunbeam did either.

I left the Freezer 64 in my system for another weak and the temperatures hovered around 30-33 degrees idle with a 6-hour stress test at the end of the week resulting in one core at 47 degrees and the other at 53.  Since I was not getting similar temps on the two cores I did check the thermal grease application, but you can see I had good coverage.

Thanks to Arctic Cooling for sending over this sample!