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AiO for 5900X / 5950X with big OC?

4.8K views 31 replies 7 participants last post by  Atekk920  
#1 · (Edited)
I've decided to stick it out with AM4 for now, which means boosting this rig to the max. I'm using the Active OC Tuner feature on my Gigabyte X570S Aorus Master to max out both single and multicore clocks on my current CPU (5900X) and so far that's working quite well.

Problem is the AiO I'm using on the CPU (Corsair H115i Pro XT) can't handle the thermal density of Zen3 very well. I've remounted countless times, tried different pastes, flattened the IHS and AiO (not technically "lapped", just wet sanded on glass plate), mounted the CPU rad outside the case, did a DIY offset mount, tried various fans, and nothing made a drastic change. The density of the tiny chiplets is just too high for this AIO I guess... Various H115i models have handled my GPUs just fine but fall apart with my Ryzen chips (except for 5800X3D which sipped power but lacked the MT performance I want)

The max total package power I can attain in R23 stability testing is around 200W- at 220-240W, temps quickly get out of control with some individual cores in the 90s and Hotspot over 100. 200W is barely enough for really good all-core clocks on the 5900X but I'd like a bit more headroom. Also I may upgrade to a 5950X later on and from what I've read and my brief testing of a 5950X on a different board, I'm certain that chip needs like 240W+ of cooling capacity for a good OC.

I've read countless AiO reviews and the results haven't been super helpful. A lot of reviews focus on Intel which isn't comparable as those seem to have different thermal density and transfer characteristics and cool better even if they use way more power. And the reviews that do include something like a 3900X will only go to 1.2v or so on manual OC testing which isn't enough to push Ryzen very hard and ofc the results are all fine at that level.

Thoughts? Is there any AIO that can handle dual-CCD Ryzen at 1.3-1.35V SVI2 TFN (ie actual socket voltage after vdroop)? I'd really rather not do a custom loop if I can avoid it. Is there some monster AIO out there that can handle extremely high thermal density? Or just some AIO that happens to have great thermal transfer ability even if it's thermal capacity isn't huge?
 
#2 ·
I finally admitted defeat on a work system and put a 5995WX under an H150i Capellix (only thing I could find at short notice and I didn't hook up the RGB wires...)

It does a reasonable job although I'll be looking into better options in the future when I'm a little less busy. At least, I hope this level of insanity isn't going to stay for long.

Oddly at full load the CPU is cooler than when just a few cores are loaded. My all-core maximum temperature is in the low 60s and my low-core load (read: 4-16 cores threads at full) pushes into the 70s. This is with (real) workloads equivalent to 256 to 1024 FFTs in Prime95, so pretty much close to maximum potential heat output. Idle is mid 30s to low 40s (but "idle" in Linux kind of isn't) and depending on who won the air conditioner wars that day... :ROFLMAO:

Sorry I can't compare my 5900X directly; it's on an AiO (mini ITX case) but running at stock... and even then sometimes the fans really kick up. Although that's usually caused by Windows Update, because it happens when idle for a time and always coincides with Windows Update deciding to start doing something.
 
#6 · (Edited)
The Elite Capellix coolers seem really good for lower heat densities! The H115i Elite Cap used on my 3090Ti DIY hybrid mod handles that incredibly well considering the relatively small amount of radiator.
Your Threadripper experience sounds like another example of Ryzen thermal density at work. Few cores active = high VCore = higher current density per active core = thermal transfer into coldplate is the temperature limitation; all cores active = much lower VCore = lower current density for all cores = thermal dissipation out of radiator is the temperature limitation. Same reason why AIOs are amazing for GPU but mediocre for AM4/AM5. I bet if that 5995WX had a big all-core OC, there would be a tipping point where the thermals behave more like desktop Ryzen.

Is your 5900X overclocked? Having used now almost every CPU in the Ryzen 5000 lineup (some on Air, some on AiO), it seems that even PBO doesn't really push them hard enough to reveal severe thermal density issues, that only happens going above 1.3V socket voltage on heavy all-core loads. I guess I could just keep it set up so SVI2 TFN doesn't go above 1.3v in all-core (which seems the responsible thing to do anyways) but I'd like to have more thermal headroom either way.
 
#7 ·
I've heard really good things about those! Is the 280 also good? I prefer 140mm fans at lower RPM.. higher RPM 120's have a higher-pitch sound that I don't enjoy.
 
#8 ·
I'm aware of the Swiftech Drive X3, awesome AIO with the performance of a custom loop- but I can't seem to find where to buy a new one with Swiftech having been in limbo until recently.
 
#5 ·
Have you measured the temperature of your rad in full load ?. My point if you are pushing the AIO over his capabilities you will see a improvement with a custom WC / AIO. But in your case I think is related to thermal conductivity.
 
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#9 ·
I have checked the Liquid temperature under all-core load but I forget what it's like. Not alarmingly hot IIRC. I feel this has got to be a thermal absorbtion issue with the coldplate and not a thermal dissipation issue with the rad. I've used Corsair 280mm/240mm AIOs on many Ryzen CPUs (1600, 3600, 5800X, 5800X3D, 5900X, 5950X) as well as several GPUs (Vega 64, 3070Ti, 3090Ti) and they handle massive heat output from GPUs just fine but fall apart with much less heat output from chiplet CPUs.
 
#13 ·
Well, in the end I threw the whole AiO thing to the wind because the local Micro Center had an open-box Bitspower open-loop kit on clearance, turned out it's completely unused and was never even unpacked. And Corsair rads were on sale so I got one of them too!

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After 20 years of PC building, it's finally time for my first loop! The plan is to build it with only the Corsair 360mm rad (should be enough for the 5900X alone?) and save the bundled Bitspower 240 for something else... I'm thinking of getting one of those integrated pump-block-res jobbies and turning it into an AiO for a GPU (my 3070Ti has been mad at me ever since I put it back on air so the 3090Ti could have the Elite Capellix)

Anyways, super excited to see first-hand how Ryzen does with proper liquid cooling :cool: I know this is really entry-level for a loop but it was CHEAP and I gotta start somewhere!
 
#14 ·
Well, in the end I threw the whole AiO thing to the wind
Yep. It's a worthwhile exercise to calculate AIO thermal resistance and work that back to sustainable processor power under the ΔTs of interest—depends how you rate and what's acceptable noise but, with typical design spaces, the more effective 360 AIOs offer about 25 W over current gen dual tower air coolers, noise-normalized. The one 480 AIO I know of isn't much ahead and so far I haven't seen a noise-normalized test where a 420 AIO runs cooler than the better 360s.

So AIOs' current thermal niche between air and custom loops is fairly narrow. That'll likely change eventually―Hyte's just announced Q60 and Lian Li's 2x360 prototypes seem illustrative, Thermalright's been iterating rapidly even by their standards, and Swiftech's talking about doing something by the end of this year as @ciarlatano touched on―but it's not helpful to cooling a build this month.

(should be enough for the 5900X alone?)
Depends on which rad and a number of other things. Generally yes, if you're not too concerned with noise, though personally I rate lower than the usual 100 W per 120 mm fan mount rule of thumb.
 
#15 ·
That kit looks really nice and a 360mm rad will be enought for a 5900X. Personally I will upgrade the waterblock for something better, look on ebay I seen lots of great used blocks for pennies
 
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#17 ·
Is the Summit M known to be a subpar block? :( I'm kinda maxed out on PC spending for now (just upgraded the mobo in this rig too) but I'll keep that in mind. The availability and interchangeability of second-hand custom WC kit is definitely a big plus for upgrades!
 
#18 ·
Sorry from the pictures looks like a serial flow block but actually has a center jet and perform on par with the best blocks

 
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#19 ·
Nice. Yah, I noticed the center jet while assembling the loop. The block bundled with the kit is not plated and has a slightly different outer shell than the one in the review but otherwise the cold plate and jet plate look the same.
 
#21 · (Edited)
Some assembly pix...

Turns out neither of my cases have enough room for mounting the res inside the case, lol. This was my solution... I have a bit of a habit of doing goofy ahh cooling setups with stuff mounted outside the case so this is part the course for me

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Did a day of leak testing, all good so time for full build!
Mounting the 3090Ti rad before installing the mobo this time, much easier than trying to squeeze a screwdriver around the VRM heatsinks and IO cover

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All buttoned up and good to go! This was before first boot so the air in the loop got moved around a bit but it cleared right up as soon as I turned it on. Runs great so far, I'll post results later :) a couple notes-there's washers + ties keeping the AiO hoses out of the rear fan, don't worry ;) Also the side fan is just for circulating air around the 3090Ti VRM / GDDR6 heatsinks so it's not totally pointless despite being really close to the side of the case with no intake.
 
#24 · (Edited)
I just went through hell trying to find an affordable cooler that would keep my old spaceheater i7 6950x cool @ 4.3Ghz....no joke, I tried about 5 air coolers and 3 AIO's. I landed on the DeepCool LT720 - Its about 129$ but I caught it on sale at Amazon for only 109.99. You will not find an AIO on the market that outperforms the Deepcool at the same price point. It's less than half the cost of the NZXT kraken and has been shown capable of cooling the 13900k to 300+ watts without any throttling. It uses an in-house pump and coldplate design vs the Asetek design that most others are using. There are no complicated software requirements or fan curves to set up, no USB connection or drivers, just 1x 4pin PWM for the fans and 1x 3pin DC for the pump. This cooler WILL NOT disappoint.

Amazon.com: DeepCool LT720 Liquid Cooler 360mm Multidimensional Infinity Mirror ARGB Block 300w TDP 4th Gen Dual-Chamber Pump 3100RPM AIO Cooler Anti-Leak Tech CPU Water Cooler for AMD AM4/AM5 LGA 1700/1200 : Electronics

DeepCool LT720 AIO Review: The Best Yet at Cooling the 13900K | Tom's Hardware (tomshardware.com)
 
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#25 ·
You will not find an AIO on the market that outperforms the Deepcool at the same price point.
Yup, the Thermalright Frozens manage a couple degrees cooler, noise-normalized, and tend to price a tier lower. :D Frozen Horizon availability in the United States seems spotty but, from when I've looked, a couple of the other Frozen 360s are usually in stock.
 
#29 ·
I've heard good things about the DeepCool units! That's what I actually went to Microcenter to buy (LS720) but the Bitspower kit was too good of a deal to pass up.

Nice tips on which CoolerMaster units are/were good, thanks for that.

Likewise, good to know that Thermalright have strong cooling power.
 
#31 ·
Not sure I'd bet on the Notte 240 over the Phantom Spirit or Peerless Assassin 120 but they're probably pretty close if you're not too concerned about pump noise (or the additional complexity). If there's comparative data between the TL-B12 or TL-C12 and TL-E12 I haven't been able to find it. Plus TL-E12s have proven impractical to obtain for my own testing (almost lower cost to get one of the TL-E12 Frozens like the Notte and pull the fans off than to get just the fans).

While the TL-B12 and C12 are upper tier 120s the E12 can reasonably be interpreted as a 120 version of Thermalright's Silent Torpedo impeller—not as well known but pretty much the reference impeller for 140s like the Gentle Typhoon lineage is for 120s—so it appears to have potential. Thermalright's air coolers remain TL-C12 centric (IIRC only the SI-100s use E12s) but, since it's possible to interpret the AIO lineup as shifting from TL-C12 to TL-E12, that doesn't seem discouraging either.

It's possible the TL-S12 on the Aqua Elites is a refinement of the TL-E12. Don't know if there's been direct (non-scalped) Aqua availability in the United States, though.
 
#32 ·
It's amazing the things we take for granted sometimes - in the 20+ years I have been Gaming\PCing noise was never something I thought twice about until recently.
  1. I've been in this for a while now - 10\12 years ago if you wanted cool, you didn't get quiet - it was one or the other unless you had a massive Ultratower with 3 or 4 200mm fans which was expensive and impractical - out of reach for most at the time.
  2. I used to work in the firmware labs at Western Digital which was very loud due to the cooling required in the lab....so loud, that by law they provided hearing protection.
  3. When the OEM fans finally bit the dust on my main rig and I made the jump to RGB fans; but they were PWM fans running off a 3pin DC fan controller built into the chassis, and the only PWM header on that board was the CPU fan! Side rant....5x 4pin headers on that board and 4 of them are DC...I mean - JUST WHY?! It resulted in 8x 120mm and 1x 140mm all running at a roaring 1800 RPM's full time. I put up with that for a few years before I did everything right recently. <---this is a whole other long story about cooling, but a good one if you enjoy PC building and laughing at an impulsive, indecisive, online shopping happy fool who made 20+ returns to Amazon in about 2 months.
After putting up with all that for a while I was desensitized and learned by default to just live life in headphones. At work or at home, if I was using a PC or on my phone\tablet; I was wearing ANC headphones. So, while I do have a great appreciation for quiet setups now - I also have a high noise threshold that I'm willing to deal with because of all that.....life is weird sometimes huh?

It's sitting on my desk now. should be a week or two before I get around to installing it, I'm waiting a while for some more ARGB bling before I tear it down. Might as well do it all at once. The reviews I read on the Frozen Notte posted some pretty good numbers. I think it's a good fit for my secondary rig - this should bring the temps down far enough to safely run the old-school Intel i7 5960X @4.5Ghz. Should make for a very noticeable gain from the stock speeds and allow me to keep this secondary rig running a few more years before its unusable. I'll post an update some time from now when everything is all dialed in

Thermalright Frozen Notte 240 : Excellent performance with Intel's i9-13900K, not as good with AMD's Ryzen 7700X (boringtextreviews.com)
Thermalright Frozen Notte 240 Black ARGB review : Supreme cooling for Intel’s i9-13900K – AdoredTV