Heat:

I used my NForce2 rig to test this cooler. I must admit, a motherboard with a socket probe usually returns a far lower measurement than a calibrated internal diode probe, but no such motherboard is available at the moment.

The Athlon core and cooler was cleaned each time with pure alcohol, before applying a thin layer of AS3. If ambient temperature (22 degrees celcius) varied more than 1 degree, the test was redone. All tests with the Jet 7 have been done at least twice.

Test system
CPU	XP1800+ Tbred B
Thermal heat	68W
Motherboard	Epox 8rda+
Probe	socket
Software	CPUBurn
Thermal Grease	Thin layer AS3

Noise:

I haven't got the professional tools to measure noise production, nor would I like to use it if I would have them. Numbers can be understood incorrectly, measurements can be taken 10 different ways, but advise is clear and simple. That's why I trust my hearing and rank each heatsink according to this table. A bit too subjective for you? Fine, just skip it then. ; )

Noise Measuring
0	passive
1	inaudible in open air
2	inaudible in case
3	audible if you pay attention
4	well audible, far from annoying
5	well audible, but not annoying
6	too loud for working (intolerant to noise)
7	too loud for working (tolerant to noise)
8	too loud for gaming
9	too loud for LAN party's
10	headache within minutes