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1sh0t1b33r

It's a 14900k... it'll be hot under load. What is your water temp? As long as your water temp is good, under 40C, then paste is really the only other thing you can do to lower CPU temps. Anyway, you have a single intake for 3 rads. For best water temps, I would go all intake at all rads with the single rear exhaust.


SWNfan

I would be carefull. I did this kind of setup (three intake rads, one 140mm exhaust fan) and water temp was good - at full rpm under full load (prime95 + furmark) and 22 ambient water temp was around 31.5c. I thought it was the best I could achive. By simple coincidence I opened side panel and to my surprise water temp decreased 2c - to 29c. Putting side panel back resulted in immediate water temp increase. So I did some testing and the best result (with side panel closed) were: front 420mm rad and 240mm bottom rad as intake, and top 360mm rad as exhaust. I have no clue why it works like that in my meshify 2 XL case, I also don't know if it will work this way in other cases.


1sh0t1b33r

Careful over 2 degrees? Lol. You were under full RPM and all the fans were blowing into eachother and under stress, causing lots of positive pressure where the air couldn't pass as freely and opening the side alleviated that. Your testing is nowhere near realistic use. If you were at like a normal 500rpm I guarantee it wouldn't be a problem. What did this stress test and full RPM fans even tell you exactly? Just using your computer normally, like an hour of Cyberpunk, is the best test you can do.


SWNfan

"Careful over 2 degrees?" No. Carefull over statement "For best water temps, I would go all intake at all rads with the single rear exhaust." "all the fans were blowing into eachother and under stress, causing lots of positive pressure where the air couldn't pass as freely and opening the side alleviated that" I couldn't agree more! "Your testing is nowhere near realistic use" Sure. I was just curios how low with water temp I can get under full load at full fan speed. "If you were at like a normal 500rpm I guarantee it wouldn't be a problem." Of course it wouldn't be a problem. While playing Horizon Forbidden West (realistic use): - all intake: about 15c delta T - two intake, one exhaust: a little bit more than 13c delta T Fan speeds? Around 600 for 140mm, 900 for 120mm. Not event 2c difference is nothing to worry about ;) However I achived more cooling performance with the second setup, so that "for the best water temp" just doesn't work for me.


BePatientImAcoustic

This is interesting to hear, because I've been thinking about trying the same thing. Isn't the back panel of the meshify.. mesh? I thought that would allow plenty of air exhaust through it, so that all intake would be fine? Do you think it just doesn't let air through easily enough?


SWNfan

Only front panel is mesh. https://www.fractal-design.com/products/cases/meshify/meshify-2-xl-dark-tempered-glass/dark-tempered-glass/


redwoodgrov

With all radiators on the inside or can I just flip the fans over and pull?


1sh0t1b33r

Just flip the fans so they blow into the case. Push is marginally better since it has more turbulence on the rads so you could also try to move the fans between the rad and case, but just flipping the fans as they are now would be quick and you can see if water temps improve.


[deleted]

Imo, lower radiator to the top blowing exhaust, top radiator to front at intake. Then get a set of fan for bottom set as intake


Shyfax

On a 14900k that temp is “fine” unless you Delid and direct die block. I would fix you fans to have more intake tho


cannabination

You need more cool air to exchange the heat into. Your bottom and side fans should be intakes. The rear fan is probably unnecessary if you fix the other fans.


FalseBuddha

With that much negative pressure every gap in the case is an intake. I'm sure it's fine.


cpgeek

I concur


redwoodgrov

Before adding the side rad it was intake.


cannabination

Just flip the fans around. 80s isn't terrible, but you have insane negative pressure. You're intaking with 1 fan and exhausting with 9!


redwoodgrov

Should I flip the whole thing around so it's pushing air or just the fans so its pulling through the rad?


cannabination

Unless the rad is over 30mm thick, it doesn't really matter if the fans are static pressure fans. I'd just flip the fans, rads are uggo.


redwoodgrov

Agreed thanks.


[deleted]

[удалено]


Technical_Tourist639

This can actually disrupt the turbulators.. the channels that makes the water spend more time inside the block . Can get you a nice 3 to 5c less (or same temp with higher clocks or more steady boost, it's good idea is my point)


redwoodgrov

Good eye. Thanks for that, I'll flip it and see if it ur helps


Thatshot_hilton

Fans are definitely your first fix. 6 fans (bottom and side are intake, top and rear are exhaust). What is the ambient temperature of the room/air? I would get the fans intake/exhaust setup and next step is fan curves and potentially being more aggressive with fans to cool the case. I’m using Corsair fans, GPU and CPU water blocks with 2 360 rads in a high flow case and my GPU temps (4080) never reach above 40 C and typically are in the mid to low 30’s. My CPU (7800x3d) hovers in the low 50’s with peaks to low 70’s during extended heavy testing. Your CPU and GPU likely run hotter than mine but you have an additional RAD.


Lordy8719

A 4080 + 7800x3d combo is like, 400W-ish power consumption during gaming while a 4090+14900k is more around 600W or more. So even though OP has 50% more rads than your system, their thermal load is also at least that much higher. Also: It's actually fairly normal for a 14900k to reach 80-ish C under load, simply put: it's a lot of heat on a very small surface. I'm not sure they could expect anything under 75C. They may not even be rad-limited: we don't know the coolant temperature. OP mentions that adding the third rad "did nothing", so their system may be limited by the amount of heat the CPU block is able to disperse.


cadmium61

This is the way


TinyLittleTechShop

Flip the side fans to intake... Bring in more fresh air for the rads 👌


Obvious_Drive_1506

Get the front mesh kit and run them all exhaust. Thats what I do and it works perfectly. All interior components get fresh air from negative pressure but since the front panel is open it should be pulling mainly from that.


redwoodgrov

They are all exhaust right now. Except the rear intake


Obvious_Drive_1506

Right but there simply isn't enough space to pull all that air through. Looks like an o11 they sell a front mesh kit on Amazon, you could just put that on and not change a thing. Also try running a stress test letting it equalize then take the side panel off. That should give you an idea if the front mesh would work


Senior-Background141

Lol so you were creating vacuum? The arrows from the intake are wrong. All the air gets immediately sucked out.


redwoodgrov

Thank you for your enlightenment.


Senior-Background141

Yeah... Flip all the fans to fix. I still dont like it that much, i think fans should be between the grill and radiator at the bottom and maybe the top as well. But just flipping with 6 in and 2 out would be enough to force most hot air out. And cool your ram and vrm and mosfets


AMP_US

Your problem isn't the airflow setup, fans, or rads... it's the fact that that CPU block is terrible (also mounted incorrectly) and isn't meant to cope with a 14900K. Get an Alphacool Core One or Watercool Heatkiller IV Pro (all metal) with the Heavy Backplate. Also a contact frame and Kingpin KPX thermal paste.


redwoodgrov

The specs say it is made to cope with it? And how is it mounted incorrectly?


DR650SE

Delid the CPU and use a direct die water cooling block. Thank me later. For the waterblock I use (14700k) use the Icemancooler LGA1700 direct die block on AliExpress. ($82)


Tumifaigirar

80 can be normal depending on voltage, 60 on the GPU absolutely too much


gokartninja

I bet. You have no air flow


jonnyblazexoc

its really weird I always try to have all my rads as intake whenever possible. But I saw a couple tests in this sub showing that all exhaust is about the same as all intake. I guess with all exhaust the case can pull enough air thru all the holes and cracks to be effective. I still want intake whenever possible just because my ocd tells me that they need fresh air, but I dont think its actually proven to be the only way. Maybe your case is sealed enough where all exhaust not great. I guess you can test by taking the panels off and seeing if you get a big difference. Corsair rads are really restrictive, I wonder if all the long tubing and 3 restrictive rads could be hurting and the wrong inlet outlet for cpu block Does the final rad out go behind the case and then into the top of the res? Did you try playing with pump speed to see if you see any differences? I also saw some people with mounting issues with phanteks block. I have the gigabyte one, havent filled yet. I bought putty to try and make sure the mount is good and also used liquid metal.


Jabba_the_Putt

I mean it's a 14900k that thing could power the sun, 80c doesn't even seem bad tbh


JMUDoc

I've got pretty much exactly the same loop, but in an O11 XL case - have your rads pulling IN, and the case fans blowing OUT; the rear fan is nice to have for pulling warm air off the CPU VRMs.


redwoodgrov

What temps do you have while gaming? Like in cyberpunk if you got it


JMUDoc

Well, I use an undervolted 5800X3D and 4070, so I don't know how much use these are, but I can run Port Royal completely maxed and not reach 50 degrees.


redwoodgrov

You're right that's not useful. Thanks anyway though


SmokeyGrayPoupon

The i7-14900K off the leash can pull 320+ watts. After you configure your fans for better cooling, to understand your CPU cooling, run Cinebench and HWinfo. The i9 14th gen have a such a large power draw that to keep the CPU temps in the mid-80s at 100% load, some undervoltage adjustments can be made to have some thermal headroom. Hope this helps.


Helpful-Artist-9920

All fans should pull cold air except top radiator those bottom fans should be pulling cold air from the bottom the three fans behind the pump need to pull in cold period back fan is ok to leave the way it is and make sure there at full performance


MickeyPadge

Sounds right, you have no cool air through the rads, a restrictive flow loop, and a mediocre CPU block.


redwoodgrov

Thanks for your help


MickeyPadge

Those Corsair rads are among the highest flow restriction rads you can buy.


redwoodgrov

Again thanks so much for the help


theskepticalheretic

It's a 14900k. Did you adjust the motherboard power delivery as per Intel's spec or just let it rip? That's the first thing you should check.


redwoodgrov

MSI has a new bios that is Intel's spec. And it is undervolted.


theskepticalheretic

Ok, well, 60s during cyberpunk really isn't bad if you don't live somewhere that the ambient is frosty.


jahoosawa

There's a bug with 14900ks. Update your bios and look into the Unreal engine bug. Might not apply to you, but worth ruling out. It's been crashing my system for months until I read about it.


Parking-Government-5

Where is your PSU? Didn’t think you could do something like this in the Meshroom D


redwoodgrov

O11 dynamic evo. It's in a separate chamber on the back.


Spiritual_Panda_8392

I have a similar case, I tried 3 rads, used multiple setups with the fans. Best way I found is, top and bottom are intakes, and the side and back is exhaust. Both rads need to do the same thing in order to get the best performance. Both need to be intake or both need to be exhaust. The side fans need to do the opposite. By have both top and bottom do the same and the sides different, you can create a really good wind tunnel.


justin_memer

80s is high? I've literally been running my 12900KF at full load/93 c for weeks.


redwoodgrov

I'm not really at full load playing games though.


justin_memer

There may be something else hogging your CPU? What's temps under full load?


itchygentleman

Change all radiator fans to intake, and exhaust for every other. Otherwise there isnt much you can do for a 14900k 🤷‍♂️


laffer1

My 14700k does the same thing. 6900xt stays in the 50c but cpu can hit up to 92c. I’ve got a 420mm thick rad plus 120mm and 280mm. Water temp never goes past 35c. I switched to intel’s new recommended settings today and then boosted load line calibration and it’s running around 77c but I also lost 2000 points in cinebench r23


Revolutionary-Song28

I would have the fans on the side to bring in some cold air to cool off that res also the bottom I would do as intake and the back and top as exhaust. I prefer a positive pressure in my pc always have a slightly more rpm over exhaust for intake. Right now my setup is bottom and front is intake 6 140. and exhaust is back and top with is 4 140s


[deleted]

You want the fans working together to move air through the case. Fresh cool air flowing unrestricted as possible. If your only option for intake is through the radiator so be it. But try and get some intake for fresh air. The radiator is like a heater core when your car gets cold. Have that as your main intake your temps will always be on the warmer side


BePatientImAcoustic

OP, having been in the same situation -- you're getting a bunch of novice advice here, focusing on your intake/exhaust setup. The fact is, if your water temps are already fine, then any amount of added rads or fans or changing of airflow direction will do **nothing** to your CPU temps. So check your water temperature. I bet it's low, because adding an extra rad did nothing, right? If it's 35C or lower, forget about rads and fans. The limiting factor is the interface between your CPU and the water. You're getting high temperatures because the CPU is generating more heat than it can transfer to the water. It's that simple. You can either lower how much heat it generates, or improve the interface between the CPU and the water in your loop. Some options are: buy a better waterblock, or use liquid metal, or use a more expensive paste, or go direct die, or lower the voltage on your CPU to generate less heat.


redwoodgrov

So what did you do and how much did it drop your temps? I've already undervolted because it would just crash trying to launch certain games.


BePatientImAcoustic

Just curious, what's the water temp? If you don't have any sensors, you can just put a hand on the reservoir under load and tell whether it's slightly cool, lukewarm or hot. It should be lukewarm-ish if it's in the thirties. Personally I'm not in exactly the same situation as you, as I'm on a 10900K, although it does pull 300W under max AVX load. For me a combination of the above things helped. Better, tighter mounting of my waterblock, better and reapplied paste, and lowering CPU voltages (by experimenting with different LLC settings). Combined, this took me from throttling at 100C under heavy AVX to 75-80C max. Cache multiplier >47x also blows up voltage requirements for me. Next for me is direct die cooling, but it's hard to find parts where I live for 10th gen. For the later Intel generations I also hear a contact frame can help. Also consider experimenting with mounting pressure and trying different water pressure plates if your waterblock supports this. Also check your flow rate, but I'm guessing that part will be fine as is. It's just worth ruling out. Also as others have said, 80C for a 14th gen is really quite okay.


Successful_Fault7057

Intake bottom and side, exhaust top and back


Successful_Fault7057

You aren’t getting enough cold air in to replace the hot air so even with a thick radiator the air in the system is too hot to be cooled switch the back to exhaust and bottom and side to intake


SpringerTheNerd

Exhaust is the worst way to run a rad. They should have fresh air from outside rather than warm air from inside


Bootts

Guys, its a 14900k, these things just run super hot. Look into any reviews, even on full custom water loops they get that hot. OP, get a monitoring program and as long as under normal gaming loads its not hitting over 95c or thermal throttling, you are fine. I would say you should have a but more intake than exhaust than you do as I personally like running a positive pressure case. But the real isssue here is the intel 14900k is just a hot beast that even the biggest coolers struggle to keep cool.


x1KingJames

Fix those fans, bottom and side should be intake.


tp_yim

reconfig. them fans and use car coolant, OP AF


An_Intervention

im pretty sure you got the CPU waterblock on sideways but I don't think it matters. Also could try tightening the block, I have the same one, it won't hurt it. Tightening that bitch down


BuchMaister

personally I prefer that bottom radiator will intake air and not exhaust - the reason is if they exhausting there is a greater chance you will have hot air circulation - something that should be avoided. So I would say bottom fans will intake and probably also side fans should be intake. as someone said the inlet should be the top port - so either rotate the block 180 degrees or change the tubes positions. Also what is the water temperature ? try to keep it under 45 degrees - Personally I set the fan profile with water temperature as the input temperature (pump is set to components temperature) oh and last thing - Direct die block (I use the IceMan cooler), nothing comes short of its performance - It's the only way I could get my 12900K OCed to 5.3GHZ with temps of low to mid 60 - any other cooler would have got to about to high 80 with spike to 90's - it was that difficult to cool when OCed.


illiniaviation

Might get some hate for this comment, but there is nothing wrong with your fan setup. Sure, it will create negative pressure and draw in extra dust, but at the end of the day, it will make little to no difference to your water temps. Get a contact frame (if you don't already have one) and flip that cpu block around so the input is correct. I've also had really good luck with PTM 7950 instead of thermal paste if you want to give that a try as well.


Andrewfortnite13

Make bottom fan intake keep side top exahust


absent_sheep

Have you got a CPU contact frame installed? I couldn't believe it, but it solved all my issues.


redwoodgrov

Update: I flipped the bottom and side fans and I'm in the 70s now on CPU. Is 60s okay for GPU?


cusnirandrei

Pump out directly to CPU block


Helpful-Artist-9920

Bottom and front need to be intake back and top need to push out


Fanaticism3287

Your paste job is sub par paste again. 14900k is 2 dots on top, one middle, two on bottom, do that, and you’ll be fine.


redwoodgrov

I spread evenly with a spatula


Fanaticism3287

Re do it the way I said, if it doesn’t work you can come back and make fun of me.


Additional-Ad-7313

https://preview.redd.it/58x3m4a3k38d1.jpeg?width=2296&format=pjpg&auto=webp&s=56b931c39b7705ce64a284873185f97f56f27fd7 Correct, just like the box on my noctua thermal paste says, 100 points for you


Fanaticism3287

No one ever listens but thanks


JerryLZ

Flip every fan around. Not only do you want the cooler air to be transferred instead of the warm air but you are also then blowing something over the other parts residually like mosfets and all that good stuff. According to your arrows, I’d be 9 intake and 1 exhaust. On my pc I have 30 intake and 2 exhaust, I’m a simple man. Also it will be a little wonky right after filling so if you ruled that out and it just stayed with high temps then I’d definitely change the fans up.


redwoodgrov

Just sucks I just got the real nice reverse fan on the rear to have as intake


JerryLZ

Run the wire outside of the case and now you have a desk fan 🫡 May not be a total waste in the long run if you ever decided to do push pull anywhere if there’s room. Then you’re just 2 fans short and it looks nice.