Advise needed, case fans

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Pendragon

New member
I'm having some issues shifting enough air through my case. I have a pair of XFX R7970, they are non-reference coolers that dump their heat in to the case. They are more than capable of keeping themselves cool. However they dump so much heat my NF-D14 is being over whelmed, cooking the CPU causing it to throttle.

I picked up a heap of inexpensive fans, more for the colour (Black housing & white fan) to match the factory fitted fans in the define R3 case.

So with the fans on 100% (12v) she is nice and cool but way too loud. Even running on 50% she is a bit louder than I would like. but on the 50% four hours on BF3 on a hot day she over heated...

So my question: What fans would you recommend? It would be nice if they were white, also not as expensive as a set of Noctuna... The cost of 7 Noctuna's I might as well get a new case! cos you know that they are going to all have to match
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http://www.youtube.com/watch?v=zJmavJMOkaI
 
What is the current fan layout in your case. The Define R3 is a verry versitile case and will be able to move plenty of air thru it.

Edit: I just took a look at your video. Did not watch the entire video becasue I just dont have the time at the moment. There does not seem to be anything wring with the fan setup you have. Seems like you have every fan slot populated. If you want silence you will have to reduce all of the fans down. Sorry I have not been much help.
 
I have been playing with different speeds, I thought I had it sorted. One evening gaming on a warm night, after 3-4 hours she started to over heat again. I can keep her cool but there is no way I can put up with the noise level... My guess is that if I forked out for some Noctua's I could have the air flow I need at a sound level I could be happy with. I would love to know before I spend upwards of £100 on a heap of fans what my options are. Is there a fan that is almost as good but much cheaper? May be reverse the air flow? It's working against heat convection but it would be feeding the D14 with cool air... I'm starting to think of some strange ideas here, I can't be the only guy with this issue
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Could water cool the CPU and have a chuffing fugly external rad
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Corsair Air series? they look pretty nice. maybe you will have to get a new case. Does your case have a side fan by the GPU's because that may improve performance, personally i would go with a HAF X for a good case and it looks cool. If you're going for something more modest though and not so flashy, try the corsair 600T, its available in white too
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OK I'm back home so I've been playing some. This is my thinking on the side fan. The G/Cards have no issue keeping themselves cool the issue as I see it the the heat they are dumping in the case. So I have reversed the flow of the side fan to exhaust. That way it should pull the hot air right out of the case from the closest point.

Another issue I discovered when doing an extended Heaven run is that the air from the PSU is real hot, I mean real hot!. I have the PSU fan up, the bottom G/Card is close to the PSU. The super heated air from the bottom G/Card is being pulled through the PSU. I'm thinking that I'm going to flip the PSU over so it's air supply is isolated from the case. There is the issue that the fan doesn't line up with the opening in the bottom of the case but fingers crossed it shouldn't cause a problem. At the very least she wont be cooking her PSU from the hot air in the case.

Anyhow the adjustments and testing will continue, adequate cooling vs noise. I really hope I don't have to swap out the case. I have only had this case a few months and I love the style and colour, but if I can't cooler her quietly she may have to go...
 
Pendragon said:
OK I'm back home so I've been playing some. This is my thinking on the side fan. The G/Cards have no issue keeping themselves cool the issue as I see it the the heat they are dumping in the case. So I have reversed the flow of the side fan to exhaust. That way it should pull the hot air right out of the case from the closest point.

Another issue I discovered when doing an extended Heaven run is that the air from the PSU is real hot, I mean real hot!. I have the PSU fan up, the bottom G/Card is close to the PSU. The super heated air from the bottom G/Card is being pulled through the PSU. I'm thinking that I'm going to flip the PSU over so it's air supply is isolated from the case. There is the issue that the fan doesn't line up with the opening in the bottom of the case but fingers crossed it shouldn't cause a problem. At the very least she wont be cooking her PSU from the hot air in the case.

Anyhow the adjustments and testing will continue, adequate cooling vs noise. I really hope I don't have to swap out the case. I have only had this case a few months and I love the style and colour, but if I can't cooler her quietly she may have to go...
Click to expand...

Yeah go with that side fan to Exhause also if you turn your rear 120mm to intake, flip your noctua D14 so that its facing Up down. intake from the top and push the air down through the cooler then blow the air onto the graphics cards... if it will fit that way.
 
I'm just about to start the job of flipping the PSU. I'm not going to remount the D14 but I might revers the flow of the fans and set the rear case fan in rather than out. I would still like to maintain positive air pressure in the case. I'm going to have to give the D14's fans a close look to see if it going to be easy to flip them.

II'll report back
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the fans just flip the clips will fit in the other side. Noctua fans are brilliant like that. at least then you're pulling cold air straight onto the CPU aswell. Atleast its cold over there. I would hate to see how hot that would run here in aus
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Pendragon said:
I'm just about to start the job of flipping the PSU. I'm not going to remount the D14 but I might revers the flow of the fans and set the rear case fan in rather than out. I would still like to maintain positive air pressure in the case.
Click to expand...

be careful on positive pressure.. too much and the air isn't as functional as you might need it to be.

the biggest problem i see is that peeps tend to use the roof as exhaust (good thing) but the rear fan

above the CPU cooler stack is fighting with the rear case fan. and what happens the air gets confused

and doesnt do anything and blockes the rest of the air coming out of the CPU cooler. use one or

the other. using the rear as exhaust and the front roof position as intake will feed the CPU cooler

monster good air. now to work on the front end is tougher. the HDD cages bust up all the goodness

and makes for disfunctional air. if the GPU is "cookin' hot" use the floor fan with some static pressure

and use that for more GPU cooling as well as the side panel. retest and see what happens.

airdeano
 
I think that adding 20Degrees C to your cpu temp is a bit steep. With decent cooling it is quite common for the core temp to be legitimately cooler than your socket temp. I would still be looking at the 10Degree C mark personally.

What is your CPU Clocked at? That is producing so much heat.

AMD have a recommended thermal threshold of 65Degrees C for the 8150

Something I would look at is perhaps flipping your top fans to intakes switch your bottom and front to exhausts....

I know it sounds ridiculous, But the heat that is putting out is huge, Essentially you would be reversing air flow, Plus side if there is noise dampening foam in the front the noisy parts of the computer are furtherest away from you. Down side is all your filtered vents would then be exhausting.

It's up to you in the end but I would just get a H80 or H100 and be done with it
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there is enough room for a top mounted 2x120mm radiator or a rear 1x120mm.
 
Grrrrr..... One round of BF:3 on the new maps and she choked! took the side off and the D14 is hot to the touch. I never saw this with my 1090t even running prime @ 4GHz

As I said in my video I never intended to get a 8150 Crapdozer but it's what I have till I can afford to swap it out. The wife has my Phenom II in her PC so I guess I'll not be getting it back any time soon. Farmville is way too important, apparently...

The CPU is not overclocked and still the D14 is having difficulty keeping it cool with the pair of 7970's in the same case.

For this evening I'll have to turn BF:3 down so the cards don't chuck out so much heat. It's a bummer cos the whole point of this rig is to play BF:3 at max settings at nice high frame rate. Grrrr...

I'm open to suggestions guys.

Edit: ---------------------------------------------

Note to self: flipping the fans on a D14 is a dumb idea.... Air flow no revere'y
 
if the d14 cant hold the temperature in the right range, the H-series ain't gunna either.

try this for the time being:

remove all pci slot covers, this will exhaust the GPUs from the air intake in front.

remove rear exhaust fan behind d14 move it to the floor of the case. reverse the

panel fan to intake. turn off fan above d14 rear-roof. let the front roof supply air

for d14.

so now the air is all in, and naturally out. CPU fed from top and GPU from front

and side panel plus floor.

and retest

airdeano
 
Clarification to my cryptic edit to my previous post. Returning the air flow of the D14 to it's regular format has returned it's previous performance. That is with the side of the case off the CPU remains within normal range. This is not to say that the original problem of the heat from the G/Cards when the case is closed has gone away.

[font="Verdana, sans-serif, FreeSans"]Airdeano, So what your saying is remove or turn off all the exhausting fans to allow the intake fans to do the work. Plus opening up the back of the case to ease the air flow away from the the G/Cards. My guess is we are testing to see if the exhaust fans are fighting/restricting the air flow/pressure created by the intake fans?[/font]
 
airdeano said:
if the d14 cant hold the temperature in the right range, the H-series ain't gunna either.

try this for the time being:

remove all pci slot covers, this will exhaust the GPUs from the air intake in front.

remove rear exhaust fan behind d14 move it to the floor of the case. reverse the

panel fan to intake. turn off fan above d14 rear-roof. let the front roof supply air

for d14.

so now the air is all in, and naturally out. CPU fed from top and GPU from front

and side panel plus floor.

and retest

airdeano
Click to expand...

The problem here appears to be internal heat causing the D14 to not deal, H80 or H100 coming from straight outside air should do the trick.

I've been doing a little digging around, there has been some small success with undervolting.

Might be worth a try.
 
Pendragon said:
[font=Verdana, sans-serif, FreeSans]So what your saying is remove or turn off all the exhausting fans to allow the intake fans to do the work. Plus opening up the back of the case to ease the air flow away from the the G/Cards. My guess is we are testing to see if the exhaust fans are fighting/restricting the air flow/pressure created by the intake fans?[/font]
Click to expand...

correct! the GPU is compratmentalizing the case. it had divided the case and 80% of the intake air has been

trapped with no place to go, but up! utilizing the roof mounted fan up front, this will serve for air in D14, with

the rear case fan removed the air can escape with out distortion.

as for the GPU area, yes the rear escape through the pci slots would help evacuate the lower portion of

trapped air.

airdeano
 
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