Antec KUHLER H2O 920 Liquid Cooling System

Pros: Great cooling ability. Dual fans and thick radiator make for a good kit. Nice pump design with LED light and software makes control very good and easy.

Cons: The unit I got had a pump that was suspected with bad bearings. After tilting at different angles to "move" any trapped air I gave up and finally called Antec support. They instructed the unit probably had a bad bearing. I sent the unit back for a refund. The back plate design could use some work. It is effective but you have to be careful with it. The fans are loud at top speed but they do a great job. Good product all in all but I just got a bad unit.

Pros: 2x120mm 2400 rpm push/pull fan system is amazing. The water pump runs at approx. 2800 rpms. Completely silent until about 1500 rpms.

Cons: Thick body, make sure you completely triple check the dimensions are going to work in your case. I bought this system figuring it would fit in the Antec 900 considering it's the same size as the rear exhaust fan. Once mounted it's too big to close the side door because of the fan mounting bracket, and even worse with a fan mounted in it. It would be impossible to close the side door without converting at least one spot on the case.

Other Thoughts: If you don't mind modifying your Antec 900 case to this cooler, it wouldn't be that difficult (I would recommend cutting off the mesh for the rear exhaust fan and mounting one of the push pull fans externally with the radiator and second fan internally).

I chose not to and returned this cooler so I could upgrade the case and cooler for my new rig.

Pros: Everything works the way it should.

Cons: Don't keep temps cold enough for me pretty sure stoke cooler did about the same 3-9c cooler but could be better than that.

Pros: Great system. I replaced the corsair H50 with this unit. it dropped my cpu temp by 5 degrees (C) and by 8 degrees (C) when under load. I did not have any problems with the install at all.

Cons: none

Other Thoughts: the only thing about the unit is that it is thick. be sure that you have the room to put this unit in your system. I modified my install by putting one fan outside the case and the rest of the unit on the inside to save space inside the case. also the installation instructions says to have the fans blowing out of the case. have the fans blowing air into the case from the outside for the best performance.

Pros: 1.Water Cooling
2.Customized LED colors

Cons: 1. Fans are like jet engine when on high when on silent profile you can still hear them
2. They work fine but I think they work like the high end heatsink which you can get cheaper than this
3. Instruction manual needs revising to make more easy for others to install

Other Thoughts: Install the CD first before you install this cooler you can change the stock fan of antec but it has to be 4 pin fan or else they just run on max which will make your desktop running like a jet. I would recommend to get the H100 than this that one will give better results and more efficient airflow.

Pros: Well, let's see: AMD 1100T at 4.5GHz and under 55c full-load. Enough said? No? Okay!
This is a stock-standard Asetek OEM that is custom modified and branded for Antec. Equivalents are the ZALMAN LQ-320 and Thermaltake WATER 2.0 Pro.
Like the above, it's pretty much socket universal:
AMD AM2/AM2+/AM3/AM3+/FM1/FM2 compatible.
Not 100% sure on FM1/FM2, doesn't claim it, but the socket holes match up.
Intel LGA775/LGA1366/LGA1156/LGA1155/LGA2011 compatible.
This unit comes with a pair of some of the best 120mm PWM fans available. There are better yes, but the performance gain isn't worth the extra cost since there isn't a performance gain. The best you can do is get quieter fans for the same or less performance.
You can easily get better 3-pin fans though, albeit they will either be louder and perform better, or quieter and perform worse compared to the stock at speed.
I've got it inside an Antec Lanboy Air, and it mounts perfectly to the rear exhaust port. Even allows that little bracket for the speed controllers on the Lanboy Air's fans to stay clipped into it as long as you mount the Kuhler to the port through a fan. That said, you could use the fans from the chassis itself, with their manual 2-speed controllers, replacing the fans of the Kuhler. I'll likely wind up doing that since these stock fans don't ramp up far while keeping my CPU's 4GHz OC.
I used extreme mode on the fans for the 4.5GHz, bit loud. Like a hair dryer on high loud.
Adjustable RGB LED Antec logo on the block.
All-black wiring to help keep things aesthetically pleasing and hidden.
Generally silent operation all-round. Quiet pump and fans. You'll hear some residual air buzzing about the loop when you first start it. Once it aerates the fluid, you won't hear it again unless it collected into bubbles tucked away in the corners of the rad.
Tubes are attached firmly enough that even if the pump had the power to blow them off, they won't come off.
Joints are sealed well enough they still hold after three installations thus far. Twice on the testbench, once into the chassis. I doubt they will leak anytime soon, if ever.

Cons: Well, it came with denting in the fins. Easily fixed with my bare fingers pulling them back into place.
What I can't fix, and the reason for the egg deduction, is the spacing of the fins in the middle near the in/out end-tanks is very thin (much lower FPI). This likely impacts performance slightly. This is the kind of thing that should not get past quality control, even if functional.

Other Thoughts: I am shocked and appalled at some of these technoob reviews below claiming "Very High" tech knowledge when they lack the common sense to read the manual. Which is clear and easy to understand if a bit simple. What's worse is we have some claiming it's not AMD 3+ compatible?! Just what socket is that? If you mean AM3+ well guess what? It's currently mounted to an AM3+ socket! I mean seriously, AM2 though AM3+ have had nearly identical brackets, and identical screw points to the point anything made for AMD sockets will work universally. Please don't pander to those technoobs Antec. You know the unit comes with AMD mounting hardware, you can tell them that and ask them to call support for a hand-holding installation over the phone.
But let me be frank here to anyone reading this: If you don't have the common sense to read the manual and understand what you are doing and how to put this thing together, then at least have the common sense to search for an installation guide on Youtube. The video linked to this product page even shows you the mounting hardware and gives you a general idea how to mount it between Intel and AMD sockets. No excuses! Stop it! You're making real system techs look bad when you're claiming "Very High" tech knowledge and blaming poor instructions or incompatible mounting hardware when you are unable to figure it out. That's user error. That insults you more than Antec. Don't do it!

Pros: The price seemed like a steal after looking what it was going to take to create a dual loop water cooling system. That may still happen but I at least don't have to mess with the CPU for awhile besides overclocking it finally. I'm not sure where the problem with the instructions is that everybody else claims because I didn't even them. I rma'd the first one I installed because either the cpu or mb was doa just so I'd have new adhesive pads. It's really a pretty strait forward install and thankfully the newer mb didn't cause any clearance issue with the cpu socket being even closer to the radiator. I'm so happy this fits in the back of my Antec 300 without needing to use any zip ties. So far it hasn't had to go above 600 rpm's so it's hard to feel any air coming from it and it sure is quiet but set it to extreme and then you'll see what it can really do. Now if I could only get my GTX 460 to be so quiet but so far even that hasn't turned it's jet engine on like usual.

Cons: The MB did not want to talk to my dvd drive at first so I couldn't use the CD and finding the software online was a bit of a treasure hunt. Not exactly Antec's fault but their website along with AsRock's need some work. The weird issue though is when I tried to type in the web address on the CD Antec claims that the product doesn't even exist. So I don't know if Antec is discontinuing this product or what. Almost enough to denote an egg.

Other Thoughts: Seriously, I don't understand why this hasn't become the standard yet. I should no longer see my CPU reach 70c while gaming.

Pros: The one I got was quiet and seemed to run correctly.

Cons: The installation had to be custom as the included mounting hardware would simply not fit my AMD 3+ socket MB. The copper mating surface was not flat or polished. For the cost of the 920 and the difficulty of install, a 5-8C cooler reading over air cooled is just not good enough. I hate the black anodized paint on the radiator fins. The pump moves too little water as well making the radiator water 17C above ambient.

Other Thoughts: Corsair looks nice. I wonder if they do a better job on the copper plates.

Manufacturer Response:

Hi TwinTurboAudi,

We offer an alternative mounting kit if you are having a hard time mounting your current brackets. Call our customer support (800) 222-6832 to request for the alternative kit and we'll send over right away.

Thanks,

Justin O.

Antec Support Team

Pros: I noticed the heat difference immediately after installing this (had stock CPU cooler before)

Works good with my AMD 965 BE, overclocked to 4.0ghx from 3.4 with no heat problems so far

Cons: Pain to install in my opinion. The instructions were horrible, the guy on youtube cleared most of it up though. Most people used had intels and not as many AMD users.

Mounting frame was slightly bent on delivery, but not bad enough to send it back. I was able to straighten it out.

I wish the pipes were removable so I could route them on the outside of the case, or offered see through pipe version.

Software isnt working well for me.

Other Thoughts: Not bad for the price at all. Fit very well in my antec lan boy air case (put in the rear fan instead of mounting on top like I have seen a few people do.

Pros: It keeps my 4.6ghz 8150 as cool I could ask for. With my custom setting idle temp is about 35c (socket) under gaming loads my core temp reaches 40-45C and under full load stress testing for over 30 minutes my core temps hover around 50-55c. Absolutely phenomenal if you're familiar with the Zambezi bulldozer procs. Installation was easy if you mostly disregard the instruction manual, and are somewhat mechanically inclined.

Cons: The EXTREME setting, while nearly matching the cooling performance of the 240mm Corsair H100i, is jet engine loud. If you want the extreme levels of cooling performance without the noise, I suggest you replace the stock fans with a pair of Corsair SP120's or an equivalent fan set, or just go for a 140mm or 240mm unit if your case has room.

Other Thoughts: I'm basing my review on the bundled AMD liquid cooling unit which uses the exact same Asetek hardware, and software except with AMD branding. It also uses the exact same fans. Also my custom fan profile in the software is 30C for the ramp start and 42-44C for fan full speed. I found that I get the best balance between noise and cooling at those settings.