Summary: not so much of a con but an inconvenience so I'll put that here: it has a poor design in the bracket to secure the cooler to the cpu making for a more difficult installation then it needs to be and possibly damaging to cpu when removing if caution is not taken to remove screws in a diagonal format from spring loaded pressure.
Pros: pushes alot of air, keeps notoriously hot running 8 core AMD chips cool
Cons: wont fit in some cases, in my case it was 2mm to tall to properly close the case door.
Summary: I didn't want to reduce eggs because it is a good cooler and Newegg hasn't let me down. However, don't expect to find any Zalman support. Look online and you'll see this is not an uncommon issue. In my case, I need a mounting bracket/clip for LGA 1155 for my new build, which didn't come with the cooler (in 2009), and their email reply was "Yes. 1156 and 1155 has the exact same dimension.
Pros: This cooler has lasted me since 2009 and has run fine on two AMD set ups since. It is dead silent, and pretty efficient. No problems.
Cons: REALIZE THERE IS BAD and MINIMAL CUSTOMER SUPPORT. The number on their website goes to their office in Korea. After a lengthy Korean recording I can't understand anyway, it hangs up on you. And emails suggest they don't understand English.
Summary: Using it on older setup 970 gigabyte mobo with 8120 AMD CPU stock clock. Before install the idle temp of CPU was 35-45 C. Under load it was 60-75 C!!! But It was somewhat hot this summer in Los Angeles. After cooler install idle temps dropped to 11-30 C. And never exeeded 60 C under load.
Pros: 1. Cost effective 2. Cheap ~ got it elsewhere for $30 after rebate 3. It works 4. Fantastic Zalman customer service
Cons: 1. Pain to install without removing the motherboard 2. Was missing AMD brackets in the package. Contacted Zalman and received necessary parts in 2 days
Summary: Overall, I'm satisfied with the product -- it may be a bit of overkill for me because I don't overclock, but it's a solid product.
Pros: Cools very well -- satisfied with the product
Cons: Had to remove it once after initial processor install, due to DOA motherboard. The screws that hold it into the board and special hex tool they include started to strip during the first removal. I am 100% certain it wasn't installed overly tight because I plan for this type of issue. Most importantly: Make sure you have room in your case for this -- it's HUGE.
Summary: I didn't realize how big this thing was. Seeing the dimensions and seeing it in my case were two different things. My computer runs a little hot still...but it's due more to the space restrictions in my tower and airflow.
Pros: Cools great.
Cons: 1) Large 2) The bracket was tricky to get on and it's un-coupled twice in the 3 years I've had it, but I guess in 3 years and only twice, that's decent right?
Summary: Was going for Cooler Master Hyper 212 Evo but newegg had this amazing deal forcing me to buy. Turn out to be pretty decent. But having this CPU cooler does prevent me from having 4 memory stick, which is still ok for me now since 2x4GB does the job.
Pros: Huge, able to cool. Generally quiet. Super cheap when I got it. Only cost twenty dollar.
Cons: Too Huge, The fan is blocking my memory slot on my Gigabyte Z77-UD5H motherboard. I can hear the fan noise when the fan is running under load
Summary: For $2 goto your local hardware store and buy some m4/4mm screws at .7 thread and 12mm length, likely found in the specialty drawer. Some are zinc, some are stainless, recommend stainless. Now toss the backplate, with those screws you can mount this thing without it or going through zalman. 2011 retainer has threaded holes and a backplate integrated already.
Pros: 5 heat pipes and lots of copper. 1366 intel holes fit 2011. BEWARE screws for backplate wont work for 2011.
Summary: This cooler is big. Because of the way my motherboard is set up (Gigabyte GA-Z68X-UD3H-B3), and the size of my RAM's heat fins, the fan that attaches to the cooler blocks two RAM ports. I only use two at the moment, so I just use the two furthest away, but I'll have to come up with a solution to fix this problem if I decide to expand. I believe that some"low-profile" RAM sticks are able to fit underneath the fan, but I cannot personally attest to that.