Cooling

[dverdier]

I have 9 fans in this case. 6 corsair 120's on either side of the rad. 3 aorus 140's on the top and rear. Initially I had the 3 aorus all as exhaust. Then one day I decided to stick my hand in there under load. I was amazed at how much heat was being thrown into the case from the rad. I flipped the top two around to throw cool air down on the board and the gpu. Now I'm getting tons more dust and I don't feel like it's really exhausting very well. When both the c/gpu are under load, it does throw a decent amount of heat out the back. The amount inside is insane though. When all three were exhaust, under load there was no fresh air coming in and there was a ton of heat around the gpu and board. In hwmon the temps didn't change that much regardless of the three fans even though you can feel some cool air coming in when under load. The riser is trapping a tremendous amount of heat between the gpu and board. I need to drill some new holes and move my gpu away from the board one more slot. I'd like to go 2 but there's only one more rear i/o slot to go. I already had to drill holes to make it fit to start with. Although it almost is now, it would've been smashed totally against the board had I not drilled the new holes. I'm beginning to think that the aio was a bad decision and that an air cooler would be better so I would have plenty of cool air coming in the front. When I get around to moving the gpu forward I would like to get a small fan mounted in the rear giving it some fresh air or at least one behind it assisting the gpu's heat blowing up. If you stick your fingers in between the gpu and riser it feels really hot and that has to be hurting the board's m.2 heatsink that's really close right behind it. I bought a 2tb 990 pro m.2 that will be in place of the 2tb 970 evo and the 970 will move to the port right below. I would imagine that 990 is going to throw more heat adding to the problem. A side note, those 990's have really dropped in price since 5th gen is starting to pop up. I recommend picking one up. I've included the temps at idle, (almost idle, typing on this page,) and under a 3dmark load. I'm not sure why I'm hitting 90 with a corsair 150 elite cappelix and liquid metal. I don't get near that with game play or streaming. I read you should only have to revisit liquid metal once a year and I've already been back in it to make sure about a month ago. I added some more and closed her up. I'm not sure why hwmon is still reporting a 4070 ti oc when I now have an 80 oc.I did a totally clean install and it's not showing this anywhere else. Aside from getting what little room I can between the gpu and my board, what are your thoughts and best advice here? Any and all ideas will be considered and appreciated.

 

Oh yeah, in case it matters, basic components:

Ryzen 9 7950x

Corsair h150i capellix elite

x670e aorus master

PNY 4080 oc

[dverdier]

Holy crap. I did not think the site was going to blow these photos up like that. I figured they would be a thumbnail to click on. Really makes the post huge. Anyone can just start responding to this if they pls. I think it will make it a bit easier.

[jaslion]

I got lost halfway your post so quickly summarize what I think your setup is like:

 

Front aio fans intake

Top intake

Back exhaust

 

What is the case?

 

[dverdier]

Fractal pop XL air. It was a long one. I actually shortened it some. It just took all that to fully explain what is going on and where the heat is. I basically want to know if I should flip the top fans back to exhaust. The problem is there are the only source of cool air coming in so I don't know. Maybe I should just take it down.

[TeraSeraph]

Exhausting out the top is the best move here, you need balanced air flow. Right now there's too much pressure in your case and the single 120mm has to exhaust the output of 5 other fans. This is likely resulting in hotter case temps and GPU exhaust recirculation. Case pressure is like blood pressure, too high can be just as bad as having negative pressure.

You could likely get even better balance of temps by placing your AIO on the top as exhaust and bring in cool air for the case from the front. The GPU exhaust might heat up the AIO a little bit but usually a CPU isn't working as hard as the GPU when gaming. 

[dverdier]

That's the way I wanted to do it when I built it but a 360 rad doesn't fit on the top. It's only 280. The fans at the top and rear are 140s. I'll flip them back to exhaust. I won't have any fresh air in again. Which way, pos or neg, is the one that sucks dust in from every little hole? That's something I wanted to avoid too. Although I think I'm getting more dust inside now with the 140s feeding in from the top. Flipping them back would be 6 120s intake on the rad and 3 140s exhaust. Which pressure would you guess that to be?

[TeraSeraph]

12 minutes ago, dverdier said:

That's the way I wanted to do it when I built it but a 360 rad doesn't fit on the top. It's only 280. The fans at the top and rear are 140s. I'll flip them back to exhaust. I won't have any fresh air in again. Which way, pos or neg, is the one that sucks dust in from every little hole? That's something I wanted to avoid too. Although I think I'm getting more dust inside now with the 140s feeding in from the top. Flipping them back would be 6 120s intake on the rad and 3 140s exhaust. Which pressure would you guess that to be?

Run your 140mm fans a bit slower with a fan curve if you're worried about negative pressure. Dust is always going to be an issue but thermal management trumps any of these concerns.

[dverdier]

So it does go that way. That's what I thought but wasn't sure. I didn't think about changing the curve. I have them separated in zones to dif headers so I should really be able to dial it in. It got cut off in the photos I attached but for some reason hwmon only shows 3 fans and one is the pump. I'm using 4 headers on top of the pump. Do you know if hwmon can only do so much or is there some other reason the other fans don't show?

[TPCEA]

2 hours ago, dverdier said:

Which way, pos or neg, is the one that sucks dust in from every little hole?

Negative.

2 hours ago, dverdier said:

Flipping them back would be 6 120s intake on the rad and 3 140s exhaust. Which pressure would you guess that to be?

That's strongly positive, which is why @TeraSeraphsaid to slow down the 140s.

[TPCEA]

2 hours ago, TeraSeraph said:

Run your 140mm fans a bit slower with a fan curve if you're worried about negative pressure. Dust is always going to be an issue but thermal management trumps any of these concerns.

Do you think the way you did your fans would help here?

[TPCEA]

2 hours ago, dverdier said:

So it does go that way. That's what I thought but wasn't sure. I didn't think about changing the curve. I have them separated in zones to dif headers so I should really be able to dial it in. It got cut off in the photos I attached but for some reason hwmon only shows 3 fans and one is the pump. I'm using 4 headers on top of the pump. Do you know if hwmon can only do so much or is there some other reason the other fans don't show?

Each header can only display one fan with any splitter or repeater. I don't know if any hubs can do better but the first port (fan 1) is usually the one. 

[dverdier]

4 hours ago, RevGAM said:

Do you think the way you did your fans would help here?

I'm sorry I don't understand your question.

[dverdier]

4 hours ago, RevGAM said:

Each header can only display one fan with any splitter or repeater. I don't know if any hubs can do better but the first port (fan 1) is usually the one. 

I thought I would have one for each header used. Not each individual fan. Maybe hwmon is only capable of showing 3. I've never had an aio before now. The one I believe is showing that says about 2300rpm. It's significantly higher than the ones I believe to just be fans. Does that sound right if you're familiar with them?

[TeraSeraph]

4 hours ago, RevGAM said:

Do you think the way you did your fans would help here?

Reverse case flow would definitely work great and also would give positive pressure for better dust mitigation. Placing the AIO at the front of the case as the exhaust and having all three 140mm dumping air into the case would work great. The GPU would be much cooler and the AIO would still likely not get that much warmer.

[dverdier]

14 minutes ago, TeraSeraph said:

Reverse case flow would definitely work great and also would give positive pressure for better dust mitigation. Placing the AIO at the front of the case as the exhaust and having all three 140mm dumping air into the case would work great. The GPU would be much cooler and the AIO would still likely not get that much warmer.

Oh wow. I hadn't thought of that. I would just need to make a screen for the rear fan. With all the rgb wires cut custom, (as to get rid of the extra daisy chain wires) it would be a job to redo that and the layout in signal rgb but I bet it'll work a lot better. I wish I had thought of that to start with. That is a great idea. I should post a photo of the back side. It's crazy how many wires there are 

[TeraSeraph]

let us know how it goes =] I could be wrong about how much heat that AIO is going to soak up but it's worth trying. 

[TPCEA]

13 hours ago, dverdier said:

I'm sorry I don't understand your question.

That question was for @TeraSeraph.

 

[TPCEA]

13 hours ago, dverdier said:

I thought I would have one for each header used. Not each individual fan. Maybe hwmon is only capable of showing 3. I've never had an aio before now. The one I believe is showing that says about 2300rpm. It's significantly higher than the ones I believe to just be fans. Does that sound right if you're familiar with them?

What do you mean by "I thought I would have one for each header used."? Can you post images?

[dverdier]

I thought for each header I used there would be a corresponding entry in hwmon. There are only 3 and one is the pump. There are 4 fan headers plugged in aside from the pump. I don't know if I have the correct amount in the bios to set fan curves or not. I haven't been there to look yet.

[NorKris]

23 hours ago, TeraSeraph said:

Exhausting out the top is the best move here, you need balanced air flow. Right now there's too much pressure in your case and the single 120mm has to exhaust the output of 5 other fans. This is likely resulting in hotter case temps and GPU exhaust recirculation. Case pressure is like blood pressure, too high can be just as bad as having negative pressure.

You could likely get even better balance of temps by placing your AIO on the top as exhaust and bring in cool air for the case from the front. The GPU exhaust might heat up the AIO a little bit but usually a CPU isn't working as hard as the GPU when gaming. 

this makes no sense 

[NorKris]

16 hours ago, TeraSeraph said:

Reverse case flow would definitely work great and also would give positive pressure for better dust mitigation. Placing the AIO at the front of the case as the exhaust and having all three 140mm dumping air into the case would work great. The GPU would be much cooler and the AIO would still likely not get that much warmer.

would prob increase temps abit, 3-4c

[TeraSeraph]

4 minutes ago, NorKris said:

this makes no sense 

it made sense to two other people, you're the common denominator here.

[NorKris]

1 minute ago, TeraSeraph said:

it made sense to two other people, you're the common denominator here.

maybe, that does not make ur recommendation to increase this persons temps any better does it? 

[TPCEA]

23 minutes ago, NorKris said:

maybe, that does not make ur recommendation to increase this persons temps any better does it? 

Op already did it the way you usually suggest.... didn't work. 

[NorKris]

3 minutes ago, RevGAM said:

Op already did it the way you usually suggest.... didn't work. 

front mounted? or show us watt under load?