Project: Pheonix Prime
- Thread starter gerico
- Start date
ive tried and tested every way to put fans in a 750D
best method
2x intakes 140mm noctuas
0 x exhuasts
dont need them. so much air is pushed through even at 7v my gpu (7990) only reaches 75c and my i7 3770k hits 49c
i love Cooling & how it works
best method
2x intakes 140mm noctuas
0 x exhuasts
dont need them. so much air is pushed through even at 7v my gpu (7990) only reaches 75c and my i7 3770k hits 49c
i love Cooling & how it works
Seriously? Wow. I've got two noctuas in front doing a stern job. Currently my rad has fans pushing air through it, although im thinking about switching it to it's pulling in air and the bottom single 120 is also pulling in air. Currently only exhaust is the rear. Would you switch this to intake too?
Thought I'd show some of the terrible colour matching. Despite this, I still think they look better than the white and go more with the theme, so for now they will do!
Because you have a H100
2x intakes running at high speed than 7v (if percentages) try 80%, H100 fans running slower maybe at around 60%
the back fan you could run at 7v or remove it at all. (testing is your best method)
this creating postive pressure, which will push all the hot air out of the cracks of your case even pci plate holes, (i can feel a breeze between mine!)
If you work out in maths:
750D is = 2.5318ft³ (cubic feet) or 16.194277 (cubed) (w x l x h)
2x Noctua @ 100% = 160CFM (cubic feet per minute) convertred from M3/h
as you see its pushing so much air its changing the air in a few seconds
ive tried vast amounts of fan/s got fans from 80mm all the way to 300MM
juast one box...
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Because you have a H100
2x intakes running at high speed than 7v (if percentages) try 80%, H100 fans running slower maybe at around 60%
the back fan you could run at 7v or remove it at all. (testing is your best method)
this creating postive pressure, which will push all the hot air out of the cracks of your case even pci plate holes, (i can feel a breeze between mine!)
If you work out in maths:
750D is = 2.5318ft³ (cubic feet) or 16.194277 (cubed) (w x l x h)
2x Noctua @ 100% = 160CFM (cubic feet per minute) convertred from M3/h
as you see its pushing so much air its changing the air in a few seconds
ive tried vast amounts of fan/s got fans from 80mm all the way to 300MM
juast one box...
hah thats mental!
Thanks for the tips buddie. So based on that, I should remove the bottom intake, and possibly try remove the rear exhaust? I'll try the two front intakes at 80% - currently they are around 70%
simple rule of thumb of air flow
Clean lines for air to flow " think of f1 car aerodynamics"
you want to the air in the case & out as fast as possible
so clear lines, so the air dont get trapped.
i would do 2x intakes only at the front
Let the H100 do the exhuast work.
you could try the Back fan on low, This will clear any heat from the backplates
Clean lines like this guy
mine is currently setup as follows
2x intakes at 50% or 800rpm
CPU Cooler 12%
no exhuast
mine
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Thanks Smogsy, that makes sense. Your the cooling guru then 
I'll give this a go and let you know how i get on. Question though, do you leave off the front panel that obstructs the intake? I sometimes wonder if it needs modding in order to help those fans intake air.
At the moment ivegot the front two intakes on 80% and the rear down to 60%, the bottom one of off. the top exhaust with the rad are around 60% and temps are:
around 30 for the cpu - gpu 1 around 65 and gpu 2 around 43. Quite suprised gpu 1 so hot right now, i know its a hot night but its not under any stress
I'll give this a go and let you know how i get on. Question though, do you leave off the front panel that obstructs the intake? I sometimes wonder if it needs modding in order to help those fans intake air.
At the moment ivegot the front two intakes on 80% and the rear down to 60%, the bottom one of off. the top exhaust with the rad are around 60% and temps are:
around 30 for the cpu - gpu 1 around 65 and gpu 2 around 43. Quite suprised gpu 1 so hot right now, i know its a hot night but its not under any stress
interesting! I am too scared to turn my fans down lower At the moment playing divinity gpu 1 is around 80 in certain areas and 75 on average while cpu is like 50 - 55. Would love to lower these if possible. Ill have a play
At the moment playing divinity gpu 1 is around 80 in certain areas and 75 on average while cpu is like 50 - 55. Would love to lower these if possible. Ill have a playi leave it off because it affects airflow a fair bit sometimes i leave unhinged but take off 99% of the time. i also took the dust filter off the top too so air can freely escape the top. i suggest you do this if your h100 is blowing outside the case,interesting! I am too scared to turn my fans down lower
80 is not bad, remember you got 2 cards in their.
if your scared set a gpu fan profile then change front intakes/exhuast speeds
i like my pc as quiet as possible but as cool as possible.
Just done hour odd of gaming
CPU max 52c i7 3770k
GPU max 65c (7990) < ive got 4 monitors plugged into this
as your h100 is restricting the escape of hot air from your gpu's try this
front fans 70-80% < up to you
the back fan at 80%
h100 what ever you want
this will keep cool area going into the case and the back fan will be removing the hot air from your gpus whilst the h100 will just be cooling the rad
it would be noiser but should cool the gpu more
the other thing different from mine is my HDD is in the 5.25" area
so no hdd cages in the way of the front of the case
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i leave it off because it affects airflow a fair bit sometimes i leave unhinged but take off 99% of the time. i also took the dust filter off the top too so air can freely escape the top. i suggest you do this if your h100 is blowing outside the case,
80 is not bad, remember you got 2 cards in their.
if your scared set a gpu fan profile then change front intakes/exhuast speeds
i like my pc as quiet as possible but as cool as possible.
Just done hour odd of gaming
CPU max 52c i7 3770k
GPU max 65c (7990) < ive got 4 monitors plugged into this
as your h100 is restricting the escape of hot air from your gpu's try this
front fans 70-80% < up to you
the back fan at 80%
h100 what ever you want
this will keep cool area going into the case and the back fan will be removing the hot air from your gpus whilst the h100 will just be cooling the rad
it would be noiser but should cool the gpu more
the other thing different from mine is my HDD is in the 5.25" area
so no hdd cages in the way of the front of the case
Your temps are hellish good. I guess two gpus will give me an extra, well, considerable extra heat source. Yeh i did notice looking at yours that my HDD bay bracket is obstructing one of the fans, but not sure I can do a lot about that as, for now at least, i need them there.
Set front intakes to 80% (both) and then rear (80, bit noisey but interested to see if it helps) and then 60% for both fans on the rad.
just come out of a few hours gaming and now idling at 49 on gpus and cpu is 30.
Ingame got my temps down to around 75 for gpus and around 55-58 for cpu - taking the top filter off the case really helped i think. Two front intakes def need the higher speed if front panel is on, although while gaming im gona take it off because its just too obstructive.
Bottom i can get rid off as that doesnt help as with it on temps dont change. Thanks for taking the time to help me, it's definitely worth playing as already I've shaved some temps off what they were!
you could buy one of these,
https://www.google.co.uk/search?q=5...H17AaWhoC4BQ&ved=0CAcQ_AUoAg&biw=2560&bih=989
the version i got sits in side without being seen from the front. & allows 3 HDD's
though i only use 1.
i got 4 ssd's (128gb) & 1 3TB HDD
https://www.google.co.uk/search?q=5...H17AaWhoC4BQ&ved=0CAcQ_AUoAg&biw=2560&bih=989
the version i got sits in side without being seen from the front. & allows 3 HDD's
though i only use 1.
i got 4 ssd's (128gb) & 1 3TB HDD
Hopefully it'll be ok like this, but cheers if I find it needs rethinking ill take a look at that.
Really love this case, my one gripe if anything is just that front panel. Tempted to try mod it soon to help let air get through easier. As i do prefer aesthetics of the front panel. Perhaps I could get a load of smallish holes in there to help let air travel through easier.
woooo or this. I'd def be all up in that
Are these AOI cpu coolers actually just not that good? It seems from reading, a decent air cooler can do a better job?
In BF4 my cpu went as high as 73, but generally sat around 60-65
Had to turn up the intakes and exhaust just to keep things nice. I'm slightly obsessive about this now!
In BF4 my cpu went as high as 73, but generally sat around 60-65
Had to turn up the intakes and exhaust just to keep things nice. I'm slightly obsessive about this now!
Soldato
I think it depends on what you're after. Clean build like my Parvum S2 looks so much better with an AIO and they're superb with the correct config - case fans and fan profile.
You've also got to remember your thermal paste, this makes a difference depending on the quality of the product, same goes for the fans. Some will be better than othes, so it really depends on what you're after & how much you're willing to spend.
Example: The Noctua Industrial he's got in the rear of his case has a static pressure of 7.5mm/H2o which is nuts - but at £20 each, you'd expect them to be really good.
Yeh, dont get me wrong these industrials are great in terms of air moving power - theyare sick. But i do wonder if ill end up buying some of the other noctua range to get a quieter machine. Its a tough balance to get right.
Like you said, i prefer the look of an AOI cooler for sure. I end up taking my front panel off while gaming to let those two noctuas really push air through the case nicely but ive found the cpu still gets to around 73 at its highest, although usually i can keep it around 66.
To me hitting 73 was not ideal, a little on the high side but might of had a fan setting wrong. I am tempted to try move the rad fans to intake so they are getting fresh clean air and not air potentially warmed slightly by my 290s and see if my cpu temps are better ingame.
One of the more frustrating aspects of this setup currently is that the noctua require more voltage than my general profile gives them in order to going on boot up. So i have to manually via the fan controller, change them to 100% then switch back to auto and let them run at 60% for general use, as this is an acceptable noise level compared to gaming when the front comes off and they get set to 80% and things get loud
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that look pretty awsome.
Yeh, dont get me wrong these industrials are great in terms of air moving power - theyare sick. But i do wonder if ill end up buying some of the other noctua range to get a quieter machine. Its a tough balance to get right.
Like you said, i prefer the look of an AOI cooler for sure. I end up taking my front panel off while gaming to let those two noctuas really push air through the case nicely but ive found the cpu still gets to around 73 at its highest, although usually i can keep it around 66.
To me hitting 73 was not ideal, a little on the high side but might of had a fan setting wrong. I am tempted to try move the rad fans to intake so they are getting fresh clean air and not air potentially warmed slightly by my 290s and see if my cpu temps are better ingame.
One of the more frustrating aspects of this setup currently is that the noctua require more voltage than my general profile gives them in order to going on boot up. So i have to manually via the fan controller, change them to 100% then switch back to auto and let them run at 60% for general use, as this is an acceptable noise level compared to gaming when the front comes off and they get set to 80% and things get loud
now you know why i use noctua at 50%
very quiet! to your first comment imy AF140 are very quiet at 50%. 73 is quiet hot for Water. i don't like water so dont follow it generally, are you over clocking though?