My first review, and I’m 13, so be kind! 
Bought from Ebuyer.com 5 months ago, £22.65
ASUS Triton 75 product page
The Triton 75 is ASUS´ first ‘fan-less’ designed model which is compatible to all 12CM fans in the market.
Onboard temp sensors will be used
Installation was an ease, the heatsink just clipped on. No fuss
TEST RIG, not overclocked
* Gigabyte M57SLI-S4
* AMD 6000+ peaks @ 3.012GHz
* Arctic cooling MX-2 thermal paste
* 4Gb DDR2 667MHz - spectek inc.
* Coolermaster regular 500W
* Sapphire HD4850 dual slot cooler (what monkey7 has)
* Heatsink fan (when used) – exhaust generic, speed: ~1400RPM
monitoring software used
* Speedfan 4.37
* HW monitor
* CPUZ
* ORTHOS
Temps: no fan, idle
Room temperature: 15C
Lowest idle temp was: 27C
Temps: no fan, small FFT stress
Room temperature 15C
CPU peak temp: 42C
Temps: no fan, gromacs core stress
Room temp: 15C
CPU peak temp: 44C
Temps: fan, idle
Room temp: 15C
Lowest idle temp: 26C
Temps: fan, small FFT stress
Room temp: 15C
CPU Peak temp: 36C
Temps: fan, gromacs core stress
Room temp: 15C
CPU peak temp: 44C
Conclusion
While using a fan with this heatsink has its advantages, a lower temperature is yet to be seen for a full stress test, I’d give this heatsink…
3/5 for effectiveness
5/5 for ease of installation
4/5 for price
(lower the better)

Bought from Ebuyer.com 5 months ago, £22.65
ASUS Triton 75 product page

The Triton 75 is ASUS´ first ‘fan-less’ designed model which is compatible to all 12CM fans in the market.
* ASUS Triton 75 'Fan-less' heatsink for sockets 775/939/940/AM2
* Weight: 395g (without fan)
* 4 copper heat pipe design
* Materials: pure solid copper base, aluminium fins
* Package contents: heatsink, AM2/939/940 clip, 775 pins, asus brand thermal paste and 120mm fan clips
Onboard temp sensors will be used
Installation was an ease, the heatsink just clipped on. No fuss
TEST RIG, not overclocked
* Gigabyte M57SLI-S4
* AMD 6000+ peaks @ 3.012GHz
* Arctic cooling MX-2 thermal paste
* 4Gb DDR2 667MHz - spectek inc.
* Coolermaster regular 500W
* Sapphire HD4850 dual slot cooler (what monkey7 has)
* Heatsink fan (when used) – exhaust generic, speed: ~1400RPM
monitoring software used
* Speedfan 4.37
* HW monitor
* CPUZ
* ORTHOS
Temps: no fan, idle
Room temperature: 15C
Lowest idle temp was: 27C


Temps: no fan, small FFT stress
Room temperature 15C
CPU peak temp: 42C

Temps: no fan, gromacs core stress
Room temp: 15C
CPU peak temp: 44C

Temps: fan, idle
Room temp: 15C
Lowest idle temp: 26C

Temps: fan, small FFT stress
Room temp: 15C
CPU Peak temp: 36C

Temps: fan, gromacs core stress
Room temp: 15C
CPU peak temp: 44C

Conclusion
While using a fan with this heatsink has its advantages, a lower temperature is yet to be seen for a full stress test, I’d give this heatsink…
3/5 for effectiveness
5/5 for ease of installation
4/5 for price
(lower the better)
