- by David_W @Mar 15, 2011
The Antec KÜHLER H2O 620 delivers high-performance liquid cooling for your CPU in a quick, easy-to-install package. Unlike traditional liquid cooling systems, this self-contained unit comes prefilled and requires no maintenance. The voltage-controlled 120 mm fan and 3rd generation copper coldplate ensure efficient cooling, while the estimated 50,000 hour pump lifetime means this cooler is even likely to outlast the system it cools. Lastly, easy-bend flexible tubing allows the KÜHLER H2O 620 to be installed in nearly any orientation. Take your PC's Quiet Computing™ to the next level with liquid cooling performance at a price that rivals aftermarket air coolers.
I bought this on sale here at NCIX for 35.99 and couldn't believe it!! I shouldn't have been surprised though, as I got my Antec 920 at NCIX for 59.99 about a year ago, and that was a kick azz deal too!!! Using the 920 for the cpu and the new 620 for the GPU (7870 Tahiti le). Recommend!!!
I really like this, it's my very first water cooling CPU unit. The fan is quite large and produces an excellent air flow and it's also very modestly priced, which is always nice. It keeps my rig between 27-31 degree celsius
j'ai acheté ce Cooling . tres facile a installer .très performant good price
Forum messages are not reviewed and may not contain accurate information about a product.
Message contents are opinions from customers based on their own experience with a product.
We do not recommend you make puchasing decisions based on Forum messages.
Customer Reviews of (Antec KUHLER H20620)
Product reviews on NCIX.com are screened for relevance and inappropriate
content. Reviews may contain inaccurate information about the product.
If there is a discrepancy, please use the Flag this Review link
located beside each review. Reviews are not an endorsement expressed by
NCIX.com, but opinions from customers based on their own experience with
a product. We do not recommend you make purchasing decisions based on facts or opinions expressed in these reviews.
Cons Runs loud for the next few months, leaks on your system and kills your compoents
Summary For the first few months it ran nice and quiet with low temperatures and no signs of leaking or bubbles forming. I installed it in the orientation recommended by the manual and bled the air to the top of the radiator as recommended by many reviewers on the internet.
The pump started being really noisy after a few months, then about 11 months after installing it, it leaked. Probably about a third of the liquid is gone, that's why my cpu ran up to over 100 degrees C. Graphics card is dead too now, thanks to the puddle of hot coolant that was sitting on it.
Would not recommend. Keep in mind the OEM is ASETEK on this guy, so other brands who use them also suffer from this problem.
Antec warranty office is still closed, I'll update when I can reach them but I don't have very high hopes for their warranty service.
Pros Great price Pump is virtually silent Provides decent cooling
Cons Stock 120MM fan is loud, and only 2-pin.
Summary I got this for about $40 on sale here. For the price, it's awesome. It keeps my system cool enough, and the small area the pump itself takes up gives room for airflow and looks much better than a massive air cooled heatsink.
My only issue with the kit was the fan- it's only a 2 pin, and runs at 100% all the time which was quite annoying. I replaced it with a Cougar V12HP and now it's very quiet, even at 100% RPM.
I was a little disappointed Antec does not light up the logo on the pump anymore, but at $40 I won't complain. A great purchase.
Pros Antec quality, h2o stability, easily usable for GPU cooling, compact rad and pump design
Cons I really can't think of one
Summary I bought this on sale here at NCIX for 35.99 and couldn't believe it!! I shouldn't have been surprised though, as I got my Antec 920 at NCIX for 59.99 about a year ago, and that was a kick azz deal too!!! Using the 920 for the cpu and the new 620 for the GPU (7870 Tahiti le). Recommend!!!
Pros -cost -doesn't compete for space with tall, ram heatsink fins -keeps overclocked cpu temps well within acceptable ramge (32-55 degrees)
Cons -bring a ton of patience when you install this puppy. I have installed the H50 a handful of times and it was a breeze. The h20 620, not so much. The clips on the seating ring would not stay put so it caused all sorts of problems lifting the ring high enough to get the pump underneath it. Finally, I just had to place it down like I would any other system by fastening it down intact---Put some unwanted pressure on the mobo but finally got it done.
Summary Other than the installation issues, it's a decent entry to water cooling.
Summary I really like this, it's my very first water cooling CPU unit. The fan is quite large and produces an excellent air flow and it's also very modestly priced, which is always nice. It keeps my rig between 27-31 degree celsius
Summary Certainly much cooler than many stock air/fan coolers. Appears to provide more consistent cooling (my slightly OC'd CPU reports cooler temps and I've had no stability issues, which I had before, since installing this.
Cons Needed patience when installing. Inspect and clean the radiator regularly.
Summary Bought this to quiet a noisy gaming rig. Installing to an Intel 8400 was fiddly, but evidently worked. It runs very quietly. In fact, it's so quiet that when the radiator loads up with dust, you may not hear the change, so inspect and clean regularly.
Summary I bought this cooler to deal with my hot summer days. Last cooler I had (old build) overheated and flew right off the motherboard. Decided this time to try a little water cooling. Well it's not a full on water rig but it does work quite well cooling my system. 26C idle, and around 30C under load. This is winter and my room temp is around 20C.
Sound: This is almost silent most of the time. Placed next to a regular desktop, you will have to look in the case to see if the Kuler is still running. It is really quiet. I have not really stressed this cooler as the fan never goes over 1400rpm. When it is working the fan becomes a little more audible, but the sound signature is a much lower frequency. I have the fan blowing out of the case so before the summer I will add another 120mm fan on the inside to increase cooling even further. Switching on any fan control to lower rpm caused the pump to make a static clicking sound which was a little more audible. I then just reset fan controls (on my motherboard) to normal and static sound went away. In other words don't run fan control software with this cooler. It will regulate itself.
Installation: Got to lose a star here. I think half my build was spent with this cooler. Terrible to set up but maybe that's me. I have P8Z77 Vpro and the backplate doesn't line up right. This causes all kinds of troubles. Finally I had to hold the screws on the back plate from falling out, so do not install motherboard before you have installed cooler. Next came the problems of getting the cooler plate on the cpu. Was not easy at all. Oh and don't forget to get a magnifying glass to see the sockets indicated on the backplate.
In the end after all I went through installing this thing I am totally impressed. I would recommed it to anyone who wants a silent cooler for effective heat reduction on a stock (like mine) or maybe slightly OC'd CPU. Maybe the install goes smoothly for you. Cheers!
Cons -Extreme noise : You can really wander if it's not your old vacuum cleaner that is running (well, in fact it's more like the EVGA 560 SC GPU fan running a 90%, has a noise level, so very noticeable when listening to music. -No customer support: I contacted them a few times and had no answer from them
Summary Honestly, it says that it has a intelligent fan controller and that normal operation should be quiet... That's a lie... At least on the one I got... The fan really does gets any louder when the computer is in full load then with in idle. It does a remarkable job, I hardly ever saw the CPU get over 31 degrees (i5-3570K), but the fan just seem to work in a "intelligent" 100% capacity, and that's just great to kill the quietness this fan should have.
I thought at first it was actually normal for it to be so loud and just added a small fan voltage reducer when using the PC for none extensive works/gaming. But then I heard the same cooler in somebody else system, and it was very nice and quiet...
So I considered that mine has a problem, so I contacted the manufacturer customer support, but to no avail, they don't answer any question/request sent to them... Great, three years warranty, it says, but the company doesn't even seem to have a customer support service, just a inbox that goes to the nether...
Over all, even if the device cools very well, I wouldn't risk buy an other product has if you get something not working, you're stuck.
Pros -Price-Point as of Oct 2012 is very reasonable. -Dropped system temp in overclock by nearly 20 degrees. -Temperatures under load are very good, dropping 16 degrees from using an air cooling solution. -Already Sealed - No Coolant to add yourself. -Aesthetically pleasing graphic on water block -Actually quite quiet when compared to an air cooling solution. -Thick, durable hoses.
Cons -HORRENDOUS to install. -Instructions and documentation are horrifyingly un-helpful. -Needs a 120mm mounting area at the back of a case to fit (rather than an 80mm - so will not fit some older cases)
Mounting brackets are not sized right: -Thumbscrews had to be screwed in ever-so-slightly diagonal -Metal inserts on the backplate were a pain to install - came out of the backplate while screwing the retention clip in. -Hoses are rather stiff.
Summary I'd still buy another one because it dropped the temperatures so far AND it's still not even on properly!
Bottom line is this thing, given the instructions and design of the components is HORRENDOUS to install however it's a great cooler that really does lower the ambient idle temps and drastically reduces full load temps by at 15 degrees in my case.
Recommended however you will need to look on the internet to figure out to install it.
I am giving it 5-Stars for the "Product" because it's a good product. It's just that the documentation is utter failure.
Summary i bought it for first build to put on my core i3 2120 (cuz i read they get a bit on the toasty side).
the instructions are very vague about where the mounting plate goes. and since they call it a mounting plate and not a back plate my noobiness was tryna slap it on the front Lol. once i figured out though that the mounting bracket/backplate went on the back it was smooth sailing.
it keeps my core i3 below 40degrees even under gaming load(planetside 2 high settings).
Cons - assembly was needlessly involved for a 775 socket (eco cooler is a breeze in comparison to setup)
Summary I found this to be a bit of a headache in comparison to other all in one liquid cooling setups I've used in the past. I'm probably a bit biased because I am a bit under the weather but It's certainly not the most user friendly. At the end of it I'd say it's working just fine and doing it's job no sweat. I've become a fan of these liquid solutions because it makes the PC much quieter (ie. it uses a big 180mm fan instead of a smaller and higher rpm cpu fan to keep the cpu cool).
Summary For folding at home my temps went from 52 Celsius to 39 Celsius. My Idle temps are in the high 20's, Can't wait to overclock. Have a 3570K cpu in a maximus gene V board all enclosed in a Antec mini p180 case.This is the worst set of directions I have ever used. It would have been better if the accessories were marked for the sockets types
Pros Its a fully sealed system Great for low noise Simple installation
Cons No specs on pump
Summary Very happy with this, cheap and keeps temps down, i did replace the stock fan with two TRICOOL 3 speed fans and must say pretty happy with this setup for the money. Would HIGHLY RECOMMEND this product to anyone!
Summary Bought to cool i5-3570K. Instructions look good until you actually try to follow them. Set of LGA1155/56 screws are almost indistinguishable from those designed for LGA2011 - look at the pictures very carefully, would have been nice if they put a label on each bag.
Radiator fan is designed to plug into power from the pump block. I plugged it into a spare mobo chassis fan header which seemed to improve performance at the expense of a little louder operation.
Easy OC to 4.3 with load < 70C. Had it up to 4.6 but load temps ran in mid 80's, which I prefer to avoid.
Pros Nicer and cleaner looking case interior, improve case airflow, good performances.
Cons You can ignore the instruction manual as it's pretty useless. Check for better instructions on youtube.
Summary The look of my case from the inside is less cluttered and the airflow is also better. I will probably add an other fan in a push-pull configurations.
The version I received seem to be a new version from Antec. Here's the differences I see between the version I received and the version that is reviewed by almost all website with a review about this unit: -The plastic clips for Intel or AMD are all black -The screw that old the cooler to the motherboard are now -thumbscrews so there is less chance to broke the fixture. -It is now supporting LGA 2011 socket
Summary Overall it's an excellent product. Other than the installation instructions and misleading marketing info (see below), it's hard to find fault with this product at this price point.
People seem to complain a lot that many of these AIO/"amateur" liquid cooling solutions are "no better" (or are "worse") than gi-normous CPU coolers that are like 150mm+ in every dimension and use like 10 heatpipes and two 140mm fans. Yes that may be, but I think these people are missing the point... AIO liquid coolers like the Kuhler 620 have an extremely low profile (at the CPU socket area) and cool very well given that fact. Sure the radiator is a bit large but I've seen the rads squeezed into tiny cases, including my own application into a Silverstone SG06 case where there's not a hope in hell for any decent air cooler to fit in there. The ones that do fit will just spin their fans up to high speeds as well, making unnecessary noise. I tried to get a Big Shuriken into my case but while it would fit the mobo and case alright, it blocked the PCIe slot which I needed to use. So I decided to try one of the liquid coolers after researching a bit, and it's worked out quite well I'd say.
On a OC'd Clarkdale Core i3 running at ~3.8Ghz, the difference from the dinky all-alum Intel stock cooler is like night and day. The stocker's fan spun up and down all the time (w/auto fan speed, Intel QST, whatever you want to call it), making some annoying noises...fast, slow, fast, slow, noisy, quiet, noisy, quiet. You get it. And this is just with general startup, web-browsing, flash videos, etc. With the Kuhler 620, even with the [radiator] fan not blowing at all the temps are lower than the stock fan for the same tasks, not to mention virtually noise free. When loading the CPU more heavily, once the liquid starts to heat up, it's definitely required to have the rad fan going though, in order to keep the temp from running away.
I chose the Kuhler 620 over some competing products as the hoses are much nicer (compared to the corrogated ones on the Corsairs) and I've seen far less horror stories (compared to models from CoolIT which seem to be prone to explode/leak :O ). The higher-priced 920 is nice with the nifty LED, and USB connection with controls/feedback, but the price was a little too high and the radiator too big for my application as well. (Would be nice if they'd offer a 720 model perhaps, with the same size as the 620 but with the USB connection like the 920, as a mid-price alternative).
These AIO liquid coolers used to be a bit more expensive but now the prices seem to have dropped nicely. At the $40 (after rebate) price, you can't really complain. Many of the big air coolers are at and above this price point. The only low points are the non-existent "intelligent fan/noise control" (see my question posted on the product page), which means the best way to run this cooler (IMO) is to provide +12V to the block/pump at all times while connecting the fan (or a different fan(s) if desired) to a speed varying output to control noise. To me, the pump is quiet enough to run at full speed all the time without having to worry about it making noise (plus from other reviews it seems if you undervolt the pump it starts to click).
The other thing I'd note as a con, pertains to the install instructions. It *is* easy enough to figure out if you've installed various computer hardware, CPUs, heatsinks, etc. before; but, the instructions only barely help you identify what goes where and how it goes where it does! It seems they've also revised the install parts (no more coloured inserts, instead you have to align two parts together and match up the VERY tiny LGAxxxx markings with respect to what socket you're installing on). The pins that go through and screw in, however, seem better than the old parts where people seemed to complain the plastic bits cracking--I don't think that's really a problem anymore, at least it wasn't for me. :)
One other note is that the layer of pre-applied thermal paste seems like a bit of overkill but I guess the product does cover various CPUs and socket mounts so maybe the large area is required. I thought of removing the paste and instead using some AS5 or MX-2 that I had but in the end I didn't bother. Seems to work great with the pre-applied paste anyway.
Definitely recommended! One star removed for the minor caveats.
Pros Well designed and engineered Very cool!! (temps - stock i5 3570K at 25C and great looks) Price... $40 after MIR!! :) Very straightforward install
Cons Weak instructions but adaquite if you take your time and examine each piece and the instructions carefully.
Summary The Kuhler took the temperature down to 26C a couple of degrees above room temp. After reading my new CPU would be between 36C and 50C idle with the stock Intel HSF and seeing the small size of it I started researching alternatives. This fits exactly what I was looking for. Great design form and function and at a price that makes it stand out. Added a second fan and now started playing with some OC.... prime95 100% CPU = 63C at 4.2GHz and 67C at 4.4GHz on auto voltage (1.356V)... I'm sure I could get these speeds with less voltage but I'm fine with this temp.. so not bothering. VERY PLEASED I went with this Kuhler... tremendous value and performance. This review was modfied by poster y 09-08-12 08:25 AM
This review was modfied by poster @ 09-08-12 08:52 AM
Summary really good cpu cooling nice for overclocking keep my cpu at really low temperature. I recommand it. same thing then the h920 if you put another fan on it. very quiet and it is really easy to install
Summary Le produit est tres bien emballé, Les instructions d'installation sont tres mal fait et manque de clareté. Par contre, une fois installé, le fan est silencieux et la temperature de mon cpu ce maintien entre 35 et 45.
Pros Cools well (Dual Core AMD) Small Quiet Priced right
Cons Single fan instructions could be better
Summary Even though the intructions aren't that great, the AM2 and LGA1155 installation went very quickly.
I installed the 620 on an overclocked x2 5200 black edition (3.4GHz) and it is more than capable of the task. Cools better than the thermalright (ultra 120?) + 104CFM panaflow combo I had on it previously. and much quieter.
I did install a Cheap Zalman 120mm fan on the front of the rad using the resistor o keep it quiet. The screws you need are 1" 6-32 thread screws. 1+ 1/4" if you want to use a washer or something.
Very happy with this purchase but would not recommend this for anything quad core.
Cons I have to disable the CPU fan control in the motherboard bios for it to work properly.
Summary After some hours, the pump was making this "click click click" sound. To solve this pump noise problem, I had to go into the motherboard bios and disabled the CPU fan speed control in order to feed the pump full power. It seemed that whenever the bios goes into quiet mode where it would feed the pump like 1/2 power, the pump didn't like it. But once the pump gets full power from the CPU fan header, the noise stopped, and it works admirably.
Setup: Intel Ivy Bridge 3770K d 4.3Ghz Idle: 30 degree Celsius Max Load (prime95, all cores): 60 degree Celsius Gamimg: 46 degree Celsius
Cons Badly written installation instructions, questionable build quality, installation method
Summary I bought this because I did not want a massive loud heatsink. I wanted to try this watercooling since it is lighter and quiet.
One problem with the Kuhler 620 is its mediocre installation instructions. They are incredibly difficult to interpret and are not detailed. I had to resort to watching installation instructions on YouTube to get it installed, which still was difficult.
Another problem is actually mounting it. You need to fit the mounting ring then slide and lock the cooler in place with the grooves. I could not get this done. Other reviews suggested I install the cooler first, then secure it with the mounting ring afterwards.
The last problem is the build quality. It comes with colour-coded screw mounts. Once fastened, the screws bend and damage these mounts.
Pros - Quiet - Not actually hard to install (once you watch the YouTube video) - Very effective cooling
Cons - Instructions are useless - Pump makes a bit of noise until you shake the bubbles out of it.
Summary Read reviews that the fan with this kit wasn't super quiet. Replaced with 2x ARCTIC F12 PWM fans in a push/pull configuration. I hooked the pump to the PWR1 header of my ASUS P8Z68-V/GEN3 motherboard and each of the fans to the 2 CPUFAN headers. Fans get controlled by mobo but pump is constant speed. Fairly quiet and keeps my i7 2700K nice and cool. Tip: for 1155 installation; use 1156 labels on the rear bracket. Read the fine print on the bracket as the holes are not in the same spot on all the corners. Bracket is not supposed to be straight on the rear.
Summary Fantastic cooling, keeps my Q9450 at 14C no load, or 23C full load. Couldnt be happier. Also very quiet, much lower than the stock Intel cooling fan.
Very poor instructions. Mounting brackets are colour coded, but there is no reference to which colour used where. Instructions are small with very little text to explain, and small diagrams which are hard to read. Suggest viewing on line installation videos before hand. I didnt and found out later I the clips backwards. Also, you must have access to the back side of the motherboard to install the mounting bracket. Its not clear from the instructions that this must be done.
Five star for performance, but four star for instructions.
Summary I just got this installed, was looking for something to OC with, I was at 46C with stock cooler, with Phenom 2 Quad core 3.4 Black Edition, but now running at 3.9 stable for now at 36C. Going to test this out for a bit as it Blue screened on my the last time I OC'd. I am loving it though seeing as I was at 22C idle no OC.
Cons No PWM control, radiator hard to place on uATX case
Summary I use this on a overclocked 2500K (4.6GHz) and it maxes out in Prime95 at ~72C core temps in a ~22C room (temps up to 80-85C are no problem for these chips). I'm using an old uATX case, however, and the radiator is forcing air out through a somewhat restricted orifice so it would cool better with better airflow. This is using the stock heat sink compound that came pre-applied as well... not sure if that makes much difference. Overall, it's a slick looking and well-performing unit.
Pros - Extremely Quiet - Very effective cooling - No maintenance
Cons - Instructions are horrible (youtube the install, make your life easier)
Summary I am very pleased with the 620, the water colling unit is extremely quiet along with the fan, it also does a great job of cooling.
I wouldn't say this is for the extreme gamer that is wanting to beat a overclocking record but for basic overclocks it's fantastic.
The instructions are horribly done I have to say, which is the only thing holding this item back. Find this on sale though and you would be stupid not to pick it up if your considering fan / all in one water based.
Running my 2500k h 4.5ghz temps are idle h 29 load is 60. I could go further easily but no point, as 4.5ghz doesn't get used on anything.
Pros - easiest water set up ever - amd and intel brackets - quite - with some 5,000RPM kaze fans it freezes your CPU - my q9550 OC'd to 3.6 is at 30 degrees Celsius
Cons - doesn't cook my bacon like my old Heatsink - only comes with one fan and 4 screws (had to buy more)
Summary I had the ZALMAN CNPS9500 and it was alright but under load my cpu went to 65'ish. Now with this, under load it hits 55 IF i have been running Prime95 or rendering for a bit in Adobe.
Any good heatsink is going to need the removal of your MOBO so I can't call that a con.
YOU HAVE to use a 2nd fan in push pull, it dramaticly changes the temps, even at low RPM. My guess is that is seals the radiator and ejects air the best.
SUGGESTION: buy a fan controller, cable extenders and a couple of the KAZE 5000 RPM fans with this. then you can control your noise when you want and get the best airflow. This model does not have fan controllers on it like it's bigger brother the 920.
Summary This cooler is dead quiet and works like a champ. I used it to replace the OEM Intel cooler on a i5-2500K and the difference is night and day. Even at idle, the BIOS used to say the CPU was 58C. It's now 38C. A 20 degree difference just at idle! The fit and finish appears first rate too. Only a couple of small downsides. 1) The CPU fan/pump plug is only 3 pin and not the normal 4 pin. It's not a biggie as it works just fine though. 2) The instructions are woeful. They aren't clear at all with orientations and positions for the mounting brackets/hardware, even the direction you're supposed to orient the radiator. It took me a bit of trial and error but I eventually did mount it. As long as you have a bit of common sense you can do it, but come on, the instructions are pretty bad. Requires removal of the motherboard of course, but that's to be expected with a high end cooler. It's a little tight with the rad/fan combo, so make sure you put the motherboard back in the case before you try to mount it up!
This review was modfied by poster @ 10-12-11 07:35 PM
Summary I had a ( http://ncix.com/products/?sku=18621&vpn=CNPS9500AM2&manufacture=ZALMAN%20TECH ) from my old 939 FX-60 setup cooling my new X4 955 with a slight OC of 3500Mhz (+300Mhz) and the load temps were 68c after 5min p95 which was well above the 62c max.
Since my case is a ( http://www.zalman.com/ENG/product/Product_Read.asp?Idx=281 ) I had limited room, so I figured I try to mount the 620. Man did this work out awesome, the top cover plate of the 160+ had cooling slots that were pitched for a 120mm fan so I mounted the rad with a push/pull fan setup on the cover plate with no problems.
My load temps dropped 18c! and with a 3800Mhz OC (+600mHZ). Temps don't go above 50c with p95 doing a 12hr stability test, very satisfied and highly recommend.
Summary I just bought this cooler to replace the stock 2600k cooler. This one is MUCH more quiet and I get 40C at load instead of 60C wich is great. This cooler is really great, liquid cooling for just about 60$. The only thing I would like with this cooler would be removing the tubes to pass them in the tube holes at the back of my case but this is a sealed cooler. I found a nice spot for it and I don't care much now.
Pros PRICE! $44 is great even after shipping and all still way under retail.
Cons Paying taxes boo, when you order from the states you avoid it, plus our dollar is strong now.
Summary Get this well you can! i couldnt find it anywhere for less than $70 plus, this is a great deal, NCIX thank you.This is an absolutely amazing cooler you will not find a better deal. Best thing is its very versatile does almost every chipset, intel or amd sockets.
Pros Small footprint on the CPU fits in smaller cases. Great Antec service
Cons Fans can be a bit loud, screws make mounting a second fan difficult
Summary I bought this for my lanbox I'm building. Fitting in any other heatsink was going to be difficult in the mATX box I had. So this thing went in. Temps ran from 50 degrees at stock speeds on my i3 530 to 60 degrees overclocked from 2.9 to 4.2ghz. This cooler is seriously impressive stuff.
I added a second fan, but the screws that were included were difficult to screw in since they aren't long enough to add a second fan. Fortunately Antec mailed me a new set free of charge.
Summary Bought the antec 620 cooler to replace the stock fan/heatsink that came with my phenom 955. Lowered workload temperatures by a solid 10 degrees celcius. Would definitely buy this one again if looking for cost-effective water-cooling.
Pros - Excellent cooling, idles in high 20s, while running Prime95 for 1 hour maxes out at 50*C (on my system). - (AMD specific) 620 provides a superiour mouting system compared to an H60
Cons - Provided instructions looked very childish and unprofessional - Installation instructions are straight forward in one aspect, yet lacking in appropriate detail in another - i.e. AMD backplate requirement - Antec/Astek QA: this is my second unit (after an RMA on the first one) which is functional yet defective; the review sites stated that the pump is supposed to be relatively quiet, however the second unit has the pump sounding like a broken fan bearing (RMA is not worth my sanity)
Summary This product got excellent performance reviews, which have swayed me into buying this cooler over the Corsair H60. That is also why I went with a replacement 620 unit instead of the Corsair H60. Unfortunately, the second unit has the running pump sounding like a worn-out fan bearing. The first unit had also a defect, where the fan would not work if it was connected to the pump's 3-pin y-splice (the unit was tested on other systems withe same results). I am giving this product only 2 STARS; hoping that other will find better luck with this product. System reference: case: Antec 300 mob: Asus M4N82 Deluxe CPU: AMD 1090T VID: PNY Quadro 2000 RAM: Kingston 8 GB ECC DDR2 800 PSU: Corsair AX750 F.Fans: 2x Noctua NF S12B FLX
This review was modfied by poster e 08-27-11 12:14 AM
This review was modfied by poster @ 10-19-11 06:14 PM
Reviews from the Web
Below are reviews found on other web sites for this product submitted by customers.
"the Antec KÜHLER H2O 620 performs very close to the Corsair H50 unit. Coming in at 2.2% better temps than the H50, the margin is small enough to call it a tie. We see the Corsair H70 doing 2 degress better however.[...]getting the same performance without all the noise is simply a win-win."
"This unit is able to slightly outperform the direct competition while keeping a very close second to a version that includes two fans and a thicker radiator.[...]Antec has more bang for the buck than does any of its competition."
"the performance came very close to the Corsair H70 unit with its big radiator and dual fans. The 620 also went about its cooling duties in a very quiet manner, something that can't be said of the other all-in-one liquid cooling solutions I've tested."
Frankly its performance is almost unbelievably good: its stock-fan performance is 7.2 degrees cooler than Corsair H50, whose radiator appears to be identical. With the high-speed Delta fan on both coolers, the performance gap widens to 9.4 degrees.
All pricing subject to change. For all prices,
products and offers, NCIX.com reserves the right to make adjustments
due to changing market conditions, product discontinuation, manufacturer
price changes, errors in advertisements and other extenuating
circumstances. Promotional offers from NCIX.com are subject to
availability and are available only while supplies last. No rain
checks will be issued on promotional items and offers.
While NCIX.com uses all reasonable efforts
to include accurate and up-to-date information on the Site, NCIX.com
makes no warranties or representations as to the Site's accuracy.
NCIX.com assumes no liability or responsibility for any errors
or omissions in the content on the Site.
NCIX.com warrants product(s) to be in good
working condition and free from defects in material and workmanship
for a period of one (1) year for OEM packages, and for thirty
(30) days for RETAIL packages, from the original Invoice date
unless otherwise restricted below or by the manufacturer's own
warranty policy. Defective returns and warranty service will be
replaced, exchanged or repaired at NCIX.com's sole discretion,
and based on vendor's policy.
NON-DEFECTIVE merchandise returns may be
accepted on some items ONLY within 15 days of the Invoice date,
at NCIX.com's discretion. All NON-DEFECTIVE returns are subject
to a 15% restocking fee. No refunds will be issued for blank media,
digital cameras (and accessories), opened software, printers,
printer supplies, paper, projectors (and accessories), appliances,
handhelds, PDAs, notebook computers, special order computers and
special order items.
Defective software, video games or DVDs
will be replaced by the SAME title and format ONLY (and subject
to current availability) within 30 days of the Invoice date. Software,
video games and DVDs may be returned within 30 days only if the
item is UNOPENED (with shrink wrap still intact) at the sole discretion
NCIX.com does NOT apply a surcharge
to credit card orders. Please read our RMA
& warranty policy and terms
& conditions for more information. If you have
any questions regarding our sales and warranty policies, please
send us a message -- we'll be glad to answer any of your questions.
NCIX provides a 30 day limited warranty on this product. The remainder of the 1 year warranty is provided by the manufacturer.
All Antec computer cases carry a three (3) year warranty from Antec.