Summary: Being in a Silverstone SG02F case, the top of the cooler is physically pressing against the bottom of the PSU, where the fan is located. Compared to my 4570's stock cooler, this is noticeably quieter and actually has my system running a little cooler.
Pros: -No moving parts means no noise -Large surface area radiates heat quickly -Installation was fairly easy -Able to be installed in multiple directions, depending on your case's accommodations.
Cons: -Heat pipes may block nearby components, such as RAM, PCIe cards, or the side of the case. -When initially installed, the heat sink was tilting at a downwards angle.
Summary: Works great for my MicroATX build I mounted it on an AMD Vishera FX-4300 in a Silverstone SGO1. It sits (no room for the 120 mm fan on top) right under my Thermaltake full ATX 500W PSU. The power supply's fan helps to move the air.
Pros: Absolutely silent CPU cooler. It is possible to mount a 120mm fan on it. 5 cooling pipes to radiator. Has kept my chip nice and cool. As I write this review, my current CPU temp is 6 degrees C. Works great in Silverstone SGO1 case.
Summary: My latest system is an ASUS P5Q SE Plus with a Quad Core Q9550 CPU. I mounted this heatsink to the CPU using Artic Silver Thermal Paste. I placed a very low 900 RPM case fan on the heatsink, a Scythe S-Flex SFF21D 120mm. Can't ask for better temps.
Pros: I bought this in Oct. 2009 and it has performed very well for me even through several upgrades. My current CPU temp is 34 degrees. You don't need a wide case.
Cons: None with cooling, only with installation. Could have included a fan for the money. Backplate design. You have to remove the motherboard to mount this monster. Bigger than you think. It just misses my memory by a hair.
Summary: Been using this in my HTPC for a few years now. Went all Silverstone on the build (SG02 case, 450W PSU and this heatsink). In my configuration, the heatsink sits directly underneath the power supply, which vents the heat away. Running a 3.06GHz Core 2 Duo with no heat issues whatsoever.
Pros: No fan, silent operation, fits SFF case, cools a wide range of CPUs.
Cons: A bit tricky to mount (trickier yet to remove and re-mount), definitely need some kind of regular air flow for necessary cooling.
Summary: Using a NoiseBlocker M12-P 120mm PWM fan with this cooler and temps never exceed 60c with bios set to not let the fan go below 40% duty cycle which puts it at around 1100rpm which is not noticeably audible in my environment.
Pros: Fairly low profile Nice construction Fits in my mini-itx solution* better than reference heat sink
Cons: *--Silverstones site for their SUGO SG07 case recommends this cooler. The SG07 is a mini-itx case, meant of course for mini-itx motherboards. I did not dock an egg for this because I have only experienced this with my 1 board, others may have different spacing between the CPU and PCI-e slot which...
Summary: This cooler is successfully keeping an i7-2600k cool, 21c at idle, using just the PSU fan for airflow. The installation was only slightly impeded by the modifications they made to support the LGA1155, mounting holes are slotted.
Pros: Huge cooling surface. Stable mounting. Fits perfectly inside a SG03 or SG04 case.
Cons: Can be tricky to install if your motherboard has a lot heatsinks on it already. Depending on orientation and board, may block RAM slots.