Enermax Liqtech TR4 II 240 Addressable RGB AIO CPU Liquid Cooler, AMD Threadripper sTRX4/TR4/SP3, Dual Chamber Pump, 5V 3-PIN ARGB, 500W+ TDP, 5-Yr Warranty (ELC-LTTRTO240-TBP)

I left a 1 star review a couple days ago because I thought the pump was dead and leaking. Turns out, neither was true and I'm an idiot. The "leaking" in the picture is most likely some of the alcohol preparation solution I was using to prep the heatspreader before applying thermal paste. After some tinkering with my motherboard, my whole setup works beautifully. This pump is incredible. I am able to overclock my Threadripper 1920x to 4.0 Ghz across all cores + threads, and the temps on this don't go above 51C. What in the world is life?! My idle temps are at 31C. Baseline at 3.5Ghz my idle temps were like 24C ...and I about had to pick my jaw off the floor when I saw that. I am using multiple points of reference for these temps. The BIOS (for idle temps), Ryzen Master software, and HWInfo. They all corroborate each other. I am in awe how well this cooler works. I may even try for a 4.5 or 4.7 ghz overclock, just to see if I can (don't wanna go over 1.4V though if I can help it)All I can say is, so far this thing is working beautifully. But I hope there will be no corrosion in the next few months (these 360's at least used to have major issues). I watch my temps often, this chip will be used in more of a multipurpose server setting, so it'll definitely be pushed a bit, and ran 24/7 on mixed workloads. I will come back and update this review if the quality diminishes (or if it remains the same)!

This cooler is premium build quality in every respect. Details such as the radiator having rubber vibration absorption strips on both sides, rubber grips on the fan mounting screw holes, and a sturdy construction feel, let you know you have a premium product. The pump is ultra-quiet and the fans seem quality. I had no problem keeping my 32-core AMD Threadripper at 43 degrees celcius or lower at 90% load, whereas my previous AIO cooler could barely keep it below thermal shutdown at 50% load (yes, the socket was mismatched on my prior cooler, which greatly contributed to the problem).

I picked this cooler because it had the best specs for my new Ryzen Threadripper's size and heat dissipation. Installation was easy (I've been building since System 100's in the late 70's). But the fan was DOA. The display does not show temperature or fan speed, so I had it on too long thinking my new install had a slow initial boot.End of story: Lack of cooling took out my CPU and motherboard. Total loss over $2,500.I replaced and rebuilt and ended up with a Corsair cooler, and system working fine at average 32°.

UPDATE 8/25/2022 - Last update for this product. Just installed a new AMD 2950X processor (the old one fail, believe it or not - AMD replaced under warranty) and an EVGA RXT 3090ti. The Enermax cooler is running the processor at about 35° lightly loaded, and never gets above 58. Not bad. As always, the system is running pretty much 24/7 crunching science work units under BONC. I did replace the fans with Corsair ML 120s, and that problem got fixed. So, after three years and four months the cooler is still performing very well.UPDATE: 8/17/2021 - Cooling performance is still excellent. The system is still running 24/7, and has had two motherboard failures, but it's still cooling fine. It would appear the only thing I'm doing differently is running my system 24/7. I'm guessing that if you turn your system on and off quite a bit, it's somehow causing some kind of precipitate (gunk) to build up on the cooling fins of the plate. Just a guess.Now, the fans are a different story. Both of them are rattling loud and I'm going to rip them out and toss them. It's too bad EnerMAX can't get their act together and fix them, because they really are a nice design. Incredibly quiet. Well, until they start rattling, that is. Knocking off one start for rattling fans...UPDATE: 6/28/2020 - The cooling performance has been excellent. So, I've been running this thing 24/7 since I installed it May, 2019. I upgraded the processor to the Threadripper 2950X last December and the cooler performance has been excellent. As noted in my Oct 2019 update, below, I had to contact Enermax support about the fans rattling. They responded in less than an HOUR! In fact, I traded emails back and forth and every time they responded in less than an hour. Now THAT is pretty much unheard of! They sent me two new fans to install, but in the meantime I installed two Corsair 240mm fans I had lying around which worked perfectly but were quite a bit noisier than the Enermax fans. The new fans worked well for about a month, but then one of them start making a LOT of rattling noise when running a low speed. Conclusion: Although I really like the design of Enermax fans, the quality of the build sucks. I found if I stick my finger into the fan while it's running at high speed (I DO NOT recommend you do this!), it stops making the rattling noise for a week or so, but it always returns.The cooling performance has been excellent for the last 14 months, again, with this system running 24/7/365 with 8 cores running floating point calcs and 4 cores running OpenGL routines on the RTX2080ti graphics card. I'll probably bring another two cores up online, leaving 2 cores for system operation. The 2950X DID, in fact, run hot and throttle itself when I first installed it, but I was unfamiliar with the memory architecture. Once familiar, I turned OFF SMT and switched to LOCAL memory mode to keep the CPU from launching multiple threads per core and that kept the total socket power (PPT) in check. As I type this, total CPU load is about 80%, and the overall CPU temp is 49°C to a max of 61° and the PPT is 70% to 84% - using Ryzen Master.I've purchased a 360 model for my next build, but have not installed it as yet.Original Review:I've been running a Corsair H115i with this 1950x since I set it up a year ago. It runs 24/7 using 15 cores to do number crunching (@home). Temp performance was pretty poor and temps under load (boosted to 3.7GHZ) were steady at 83°C - which is ridiculous. The 115i just doesn't come close to covering the actual chips that are active under the "lid" (only two of the four are active on the 1950) so everything I tried to get better cooling failed. In spite of all the negative reviews of this Enermax LiqTech TR4 II cooler, I decided to try the 240mm version and see how it goes.Installation was easy and straight forward, except that the radiator did not fit in my LianLi case. (this case is horrible and was discontinued - my fault for buying it) There wasn't enough room between the Gigabyte X399 Designare EX board's heat spreader at the top of the board and the top of the case for the radiator to fit. Eventually I was able to take out the two fan mount screws and squeeze the radiator in place. Luckily, I ordered the 240mm and not the 280 which allow me to do this. It's narrower and sits slightly to the left of the fan opening. It's less than ideal, but it's secure.There is no integrated software like Corsair LINK that I know of that you can use to monitor and control this thing, so you have to use built-in BIOS Pump/Fan/CPU header controls, which worked fine with this Gigabyte board. No problems noted.After starting the system, I was amazed right off the bat. Room temp = 78°F for these numbers: Idle before = about 45°C, Now = about 35°C. Under steady load of floating-point calcs at normal cpu speed of 3.4GHZ: Before = about 68°C, Now = about 45°C (WOW!) Pushing the cpu to 3.7, then 3.8, then 3.9, then to 4.0 GHZ, the temps did not exceed 57°C, although to maintain stability, I had to increase Vcpu to 1.30 volts. But WOW! Talk about thermal performance! I was NOT expecting this big of a difference. Fan noise was very low and comparable to the Corsair at 75% to 100% fan speed. As I sit here typing, 15 cores are running float cacls, room temp 77°F and cpu temp is indicating 57°-58°C.Now, if it will just hold this up over time, it'll be quite impressive. If anything happens in the next year, I'll update this review with the results. Regardless, in 6 months I'll update its status, good or bad.UPDATE: 6 Months 10/3/2019Ok, this cooler has been running under full load 24/7 since installed the beginning of May. After three months one fan began making a rattling noise, but I was able to work around it and get it to stop. However, as of this morning, it suddenly started making a very loud rattle and its failure is imminent. I just submitted a support ticket to Enermax to get a replacement fan.For cooling control I started using Gigabyte's SIV (System Information Viewer) for monitoring and controlling the cooler. It's not a bad software tool and it allows pretty detailed control of everything you need.Generally, the pump is running at about 2800 rpm most of the time except when the load is lighter, and the fans run between 2000 rpm and 2100 rpm. This is for the majority of the time. The temps are mostly the same as when I first installed the cooler, however, there has been an increase of an average of 2-3°C that I attribute to dust in the radiator.At this 6 month point, overall cooling performance is excellent for the Threadripper 1950x processor.Going forward, it appears this is when most of the failures occur so I'll up this review as necessary. Regardless, I'll update once again at the 12 month point.Right now: RECOMMENDED

Had one with 3 fans from same company that after 2 years of use died (pump?).....bought a replacement cooler that said it covered Ryzen....and when it came, the cooling plate was "Intel square" and had a weird contortion of brackets to fit for AMD - would have had tear machine completely apart. Ordered this one - BINGO - it fit the Ryzen perfectly and could reuse the existing bracket. Great for those of us running high core count home servers that push things (non gamer) with multi-threaded software development. Lesson - if running Ryzen - do your research and only buy coolers specifically targeted at TR4 like this one.

It works perfectly when new. Cooling performance started to degrade after 4 months and it completely failed after 20 months (almost 2 years).

Opened it when I got it. Decent serviceable piece of kit.Chopped that led rgb thing off.Filled it with some antifreeze mix that I had in a jug.Threw away that plastic that comes with it, something that should be thermal grease but isn't. Used some cheap thermaltake grease that I had from who knows when.1920 with 64GB of memory. Ambient ~23C, idles ~25C, prime95 doesn't get it above 57C.I don't know what people are complaining about. Just get it, use average thermal paste over entire surface and service it once in a year or two, because you can. Or don't.