high temps after overclock advice needed

acemastr said:
He's close to thermal throttling on the CPU anyway.

He has 3 intakes on the front pulling in air, I can't see how his air temps would be bad enough in the case for VRMs and other components to start overheating, I only have 2 intake on the front and they go through my AIO, 1 exhaust on rear and 1 exhaust on top. He has much better cooling than I do and his temps are terrible.
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Well I had the stock fans on my case, two intakes. Yet when I swapped them for 2 new ones, my case temp drops 10C. Why? Because if they don't have the pressure to overcome the filter, they're not actually doing anything. CFM is basically seeing how fast the engine can spin the fan (they stick it in a tube with the air already moving). Pressure is how much resistance it can overcome, and the filter on the front of the case is going to be producing some relatively strong resistance.

If you start intaking through the radiator, especially on a chip that'll be throwing out a lot of heat, your internal temps are going to go much higher, and passively cooled items like VRMs are likely to really suffer.

So if you need sufficient airflow to remove that excess intake, you may as well set it up to be sucking that air in properly in the first place, and then venting it through the radiator, keeping everything cool.
 
The temp probe I've put in my case at the top during an Overwatch session sees 40c at the top and 27c at the bottom of my case, you're now putting that 40c air through the radiator instead of the 22-23c air from outside the case.
 
What about if I moved the rad to front so the front 3 Intakes are pulling cold air through the rad? And left the fans in top as exhaust with rear?
 
acemastr said:
You have a real grudge against AIOs lol
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Well, first off it's not real AIOs but CLCs I don't like. It's not a 'grudge', just enough knowledge to know their shortcomings. All CLCs are a sub-group of AIOs. While there are a few AIOs that are not CLC and are infinitely better, the vast majority of pre-filled liquid coolers are all members of the CLC sub-group of AIOs.

They were originally named LCLC by Asetek (patent holder) for 'Low Cost Liquid Cooler'. To give you an idea of how wimpy they are, their pumps flow coolant at about the same rate healthy adult urinates into toilet .. 40-45 L/h. As a comparison D5 pump arguably the most popular custom loop pump the D5 has a maximum flow rate of 1500L/h. 30 times more than most CLCs can flow.

Then there is the lack of any way to top up coolant level or change it after a year or so .. the average time it takes for one working hard to start showing problems and pump eventually stops working. Yeah, lots of users with high overclocks start having problems with CLC after 1.5-2 years of hard use.

acemastr said:
He's close to thermal throttling on the CPU anyway.

He has 3 intakes on the front pulling in air, I can't see how his air temps would be bad enough in the case for VRMs and other components to start overheating, I only have 2 intake on the front and they go through my AIO, 1 exhaust on rear and 1 exhaust on top. He has much better cooling than I do and his temps are terrible.
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If that was true having the CLC as exhaust wouldn't be a problem .. CPU would not be running so hot.

What Unseul is saying is correct. Switching CLC to intake will definitely increase case air temp and thus the temp of everything in the case but CPU.

Only way it wouldn't if if there is some kind of magical CLC trick that somehow makes heat vanish .. or there is no heat getting from CPU to CLC.

Also, if he switches the CLC to intake he will have 5x intake fans and I seriously doubt his case has 5 or more exhaust vents to let air out of his case .. so the case airflow will then be restricted to how much air can leave the case .. like maybe 3 or 4 vents so maybe 3 vents worth of intake fans of airflow through case .. less airflow then case now has and is running hot.
 
I meant to use the front 3 fans as intakes with rad behind them pulling cold air through and two in top as exhaust and one in rear as exhaust. just done another stress test with front cover and top cover removed hit 81 max temp so its getting lower with little tweaks I will try mounting the rad in front now. Also I feel warmish air through the rad but the rad itself feels quite cool I would have expected it to be warmer?
 
When you say covers removed, do you include filters? Filters will be limiting the effectiveness of fans (whether they're radiator fans or case fans).

What happens if you take the side off and stick a fan blowing air in? 81 doesn't sound that bad for a stress test though, considering it's artificial nature is unlikely to be replicated in real world situations.

However, depending on the volume of liquid, you should really run stress tests for 30 mins plus I'd guess, since the liquid itself will act as a heatsink at first, and will take longer to level out.
 
The top cover on mine doesn't have a filter just a solid plastic top so I'm guessing it's designed to be a exhaust and yes the full front plastic cover and dust cover I also removed the side panel because I wanted to feel the warm air. Temps lower but this isn't ideal it's practically an open bench test.
 
Ok with new configuration with case all together my idle temps are down to 34 and they was at 38 Deg and on a 30 min stress test the max temp on cpu with the case together as it was supposed to be was 79 degrees is this reasonable? Or do I need to get this down further?
 
dane3206 said:
The top cover on mine doesn't have a filter just a solid plastic top so I'm guessing it's designed to be a exhaust and yes the full front plastic cover and dust cover I also removed the side panel because I wanted to feel the warm air. Temps lower but this isn't ideal it's practically an open bench test.
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Good intake fans, and keeping the radiator as exhaust, will create much better airflow in general.

It looks like an 8700k at those settings (to my knowledge it's the same chip right?) would pull around 250W when at 90% utilization, which is pretty huge? I can't find many ratings on what these sort of AIOs should be doing.

Just seen your new post, what's the new configuration? Intake or still exhaust on the radiator? If intake, what's happening with your GPU temperatures after a gaming session on an intensive game?
 
My delidded 8700k at 5ghz 1.3v runs at 70c during Prime with my terrible case cooling. I'd say you're pretty much spot on. (Air conditioned house, always 22c)
 
Unseul said:
Good intake fans, and keeping the radiator as exhaust, will create much better airflow in general.

It looks like an 8700k at those settings (to my knowledge it's the same chip right?) would pull around 250W when at 90% utilization, which is pretty huge? I can't find many ratings on what these sort of AIOs should be doing.

Just seen your new post, what's the new configuration? Intake or still exhaust on the radiator? If intake, what's happening with your GPU temperatures after a gaming session on an intensive game?
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The 8086k is just a binned 8700k I'm noticing cpu temps are way down on real bench. The config is rad in front of case with 3 intake and two in top as exhaust and one in rear . My gpu in far cry which seems to be a straining game was never over 63 so I'm expecting a slight bump in temp which I will have to see if there's much difference. Sounds daft but you have to flip the tray on top which held the rad in and mount the fans to them when there's no radiator and I can feel better air flow pushing out the tiny holes. Oh and to add I've got a newbuild property and our living room is always baking damn eco friendly houses :D
 
dane3206 said:
I meant to use the front 3 fans as intakes with rad behind them pulling cold air through and two in top as exhaust and one in rear as exhaust. just done another stress test with front cover and top cover removed hit 81 max temp so its getting lower with little tweaks I will try mounting the rad in front now. Also I feel warmish air through the rad but the rad itself feels quite cool I would have expected it to be warmer?
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Then all that 'cool' air becomes 'heated' air out of radiator and to other components.

We really need to figure out why your CLC isn't cooling your CPU any better than it is, and without monitoring the temp of airflow going into radiator we have no idea if problem is airflow temp related or not.

As Unseul said, good pressure rated intake fans are critical. His changing from 2x stock 140mm to 2x good pressure rated 140mm front intakes changed his temps 10c. NO OTHER CHANGES.

If your current case intake fans are not moving a good flow of air through your case all the heated air coming off of GPU will be flowing up into radiator.

If your current case fans are moving a good flow of air through case and you remove all PCIe back slot covers the airflow will move from front past GPU and out the back .. but that requires front intake fans that are able to push 30-60cfm of airflow through the front grill, filters etc. and on through case.

Here is link to a basic guide to how airflow works and how to optimize case airflow. Maybe it will help you understand how it all works.
https://forums.overclockers.co.uk/t...-i-put-my-temp-sensor.18564223/#post-26159770
 
Since I made them changes changing rad to front I'm gaming on Farcry 5 at 1080p ultra settings cpu last night was 70deg I'm not even hitting 60 degrees averages in the 50s gpu has stayed the same 62 max
 
So if I've got it right, you now have the fans from the radiator acting as intake fans, rather than the stock case fans? What are the fans on the radiator? If they're capable of pulling fresh air in (even though it's going to be warmed by the radiator), you'll no longer be cycling hot air like you may have been before.
 
I agree with Unseul, now that you have radiator as intake on front there is a lot more airflow in front and on through case. My guess is a couple good front intake fans with PCIe slot covers removed and radiator back in top as exhaust and all would be cool, no pun.
 
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