Summary: Zalman tech support didn't seem very professional and the whole idea of tech support to them appears very barebones.
Pros: Looks like it would work well if I ever got the right hardware.
Cons: Unit came missing a nut for the motherboard backplate. Called tech support. They were going to send the part "Priority" shipping. It arrived over a week later with the wrong hardware in the bag. Contacted NewEgg for an RMA. Never buying from Zalman again.
Summary: Not a terrible cooler, but have a backup fan ready to go, or go with another brand with better fan reliability.
Pros: Reasonably cheap, quieter than the stock cooler while it lasted, cooled better than the stock cooler. Easy to replace the fan with the included clips.
Cons: The fan began making faint noise after about a month, then ratcheted it up to a steady and annoying drone over the course of the next month. Replaced the fan with a 10-year-old Sunbeam fan, instant improvement. For a product whose main draw is the quietness of its fan, this was very disappointing.
Summary: The Unit is large and the included thermal grease was cheap, I used Arctic Silver instead, Fan is noisy, and I put a second 120mm on there so it did drop my temps by 10 Celsius, I was very disappointed with the company denying my rebate.
Summary: I didn't know what to do with the air space between the heat pipes. I ended up placing thermal paste on each heat pipe separately. The cons only detract a little. Overall, I'm happy with this product.
Pros: Solid build. Direct contact heat pipes. Compatible with many skt types.
Cons: There is considerable air space between heat pipes. Perhaps as much as 25% total area of air between heat pipes. Directions are occasionally difficult to understand depending on your skt type.
Summary: These guys complaining about this cooler blocking ram slots aren't installing it right. If it blocks a ram slot horizontally, install it vertically. It fits fine so long as your case is big enough and you aren't actually paying for microatx boards. Nobody should be doing that. Stop it.
Pros: Be warned, this cooler is huge. I was actually joking with my friend while unboxing the parts to build this new machine about how the processor was the size of the entire box, or the ram was several inches wide, and then he pulled this cooler out its box and it really was the size of the entire b...
Cons: The fan is very cheap. Mine started making noise barely two days after I installed it. Luckily, it's a standard 120mm case fan secured with a couple of clips and I have a few of those laying around.