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Two Vipers & mounting them for the quietest cooling. Help.

post #1 of 2
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I'm currently running a Lancool K63 and regretting choosing it over a Fractal case. Essentially I'd like to make my rig quieter but I don't want to have to buy another case. I'm currently running it with 2 standard 140 fans up front(intake), a 120 in back(intake), and 2 140s on top(exhaust) with a Radeon 7770 http://www.newegg.com/Product/Product.aspx?Item=N82E16814127687 Can't tell if it's internal exhaust or external, the shroud seems to cover most of it inside the case but it's not a blower. I also have an i5 2500K with the stock cooler on it. The top front fan is currently jammed and one of the topfans died a year ago so I'm essentially running 3 fans right now.

I've got 2 140mm Akasa Viper fans still in box, and am planning on picking up an Akasa Venom cooler to match. I figure it's best to stick with one model of fan throughout so I'm looking for some advice as to where I should mount the vipers, all the other case fans will be removed. I've got a fan controller so I've done some testing which showed having all the fans on was not as efficient as running one front fan and one top(the back fan didn't have much effect.) The top fans had a surprising impact on GPU temperatures, much more than I'd expect which made me realize I'm really quite clueless when it comes to this cooling thing. Basically my questions are: Where should I mount the two fans I've got for the best airflow? And which direction should I mount the new cooler when I get it?

Going fanless most of the time is the plan so being able to idle the computer/watch youtube passively would be nice. Also worth noting that I'll be stressing the CPU out more often than the GPU so it gets priority. I'll only be using the fans when I am playing a game, running a demanding application, or in the rare instance I'm doing something productive. I know from my experience with a passively cooled R6850 that my case can't support a passive GPU when gaming with it's current fans(though that card may have just had the cooler mounted poorly.) If I can manage the airflow well enough I would like to put an Arcic Accelero S1 PLUS on the 7770 as it would deal with the second worst noise offender in the case.

Considering the GPU and the fact my PSU isn't going to be quiet I don't see the reason in going for a passive cooler like the nofan for the processor. Akasa says their fans are <7db at the lowest speed which I feel would be as quiet as I'd need. My budget is $80 which counts noise foam or a passive PSU out.

Looking at that video in this thread http://www.overclock.net/t/1041926/how-to-decide-on-a-case-for-air-cooling-warning-pics#post13870379 it looks as if the ideal way to cool the CPU would be to have one fan in the top infront of the cooler and the other in the front? Or I could run them both as top intake fans and have the CPU cooler blowing downward for maximum airflow right over the CPU. If I did it that way I could probably just use a cheap tower cooler 'passively' and budget in the passive GPU cooler from Arctic(which would have some airflow from the top fans as it's larger than the card.) I kind of like that idea as I would be relying on natural convection when idle, and then active airflow whenever I want to put a load on it. I'm just a tad worried about dust, which builds up on the front grill of my case very quickly. Do you think I could get away with a passive cheap tower cooler having an exhaust fan on top and the other fan in the front(as to keep the intakes filtered?) I've also got the option of trying to find a decent 140mm coolers and putting one of the Akasas on there thought mounting one of those horizontally would probably be impossible due to RAM clearance. A good 140mm cooler like the Armageddon would be a waste as well considering I will not be overclocking my CPU.

Pretty much I want help making a case that was in no way designed to be quiet, quiet. There are way too many ways I could do this, I should have just gotten the fractal. tongue.gif I know there are some cooling gurus here, can you help me do the impossible?
Edited by RedCloudFuneral - 1/15/14 at 6:59pm
Yellow Green
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5 6600K Fatal1ty Z170 Gaming K4/D3 Zotac GTX1080 Amp! Mushkin 8GB DDR3L1600mhz 1.35V 
Hard DriveHard DriveCoolingOS
Seagate 1TB Patriot Blast 240GB Akasa Venom Win 10 64-bit 
MonitorKeyboardPowerCase
Acer Z301C Ducky Year of the Tiger(Cherry Blues) XFX 850W Black Edition Lancool K-63 
MouseMouse PadAudioOther
Coolermaster Xornet Mionix ULTRA-FI DAC41/Beyerdynamic T70 Akasa Fans x 2 
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Yellow Green
(16 items)
 
  
CPUMotherboardGraphicsRAM
i5 6600K Fatal1ty Z170 Gaming K4/D3 Zotac GTX1080 Amp! Mushkin 8GB DDR3L1600mhz 1.35V 
Hard DriveHard DriveCoolingOS
Seagate 1TB Patriot Blast 240GB Akasa Venom Win 10 64-bit 
MonitorKeyboardPowerCase
Acer Z301C Ducky Year of the Tiger(Cherry Blues) XFX 850W Black Edition Lancool K-63 
MouseMouse PadAudioOther
Coolermaster Xornet Mionix ULTRA-FI DAC41/Beyerdynamic T70 Akasa Fans x 2 
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post #2 of 2
If you follow Ehume's guide you should have no trouble.

Some people might opt for a top exhaust in back of the CPU cooler (make sure exhaust isn't in front of the CPU cooler will get starved for air) rather than a front top mount intake. It seems your case was built that way, I don't think those vents are conducive for intake.


If you mount your CPU cooler with intake towards front of the case then you can use top (front top) intake.

If you mount your CPU cooler with intake towards the GPU (bottom of the case) then you don't want to use top intake.


Since you have two 140mm Vipers and are picking up a third, I'd think a top front mount intake (or top rear mount exhaust, since rear fan slot is 120mm) is the way to go. You'll have to experiment to determine which one is the best configuration.

Make sure you remove the middle Hard drive cage if you aren't packing your drives there.
Edited by AlphaC - 1/15/14 at 7:28pm
Workstation stuff
(407 photos)
SpecViewperf 12.0.1
(133 photos)
PGA 1331
(13 items)
 
CPUMotherboardGraphicsRAM
AMD Zen SR7 octocore (Ryzen 7 1700) Overclockable AM4 motherboard X370 To be determined , AMD Vega? 2x8GB DDR4 low-profile or heatsink-less 
Hard DriveHard DriveCoolingCooling
Samsung 950 Pro / 960 Evo / 960 Pro 256GB or 51... Samsung 850 Evo 1TB SSD Storage Black or black+white Twin tower air cooler or s... EK Vardar F2-140 140mm, Phanteks PH-F140SP 140m... 
CoolingOSMonitorPower
Fractal Design Dynamic GP14 (included with case) Win 10 Pro 64 bit 4K monitor with Freesync EVGA Supernova G3/P2 750W or 850W 
Case
Fractal Design Define R5 Blackout edition 
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Workstation stuff
(407 photos)
SpecViewperf 12.0.1
(133 photos)
PGA 1331
(13 items)
 
CPUMotherboardGraphicsRAM
AMD Zen SR7 octocore (Ryzen 7 1700) Overclockable AM4 motherboard X370 To be determined , AMD Vega? 2x8GB DDR4 low-profile or heatsink-less 
Hard DriveHard DriveCoolingCooling
Samsung 950 Pro / 960 Evo / 960 Pro 256GB or 51... Samsung 850 Evo 1TB SSD Storage Black or black+white Twin tower air cooler or s... EK Vardar F2-140 140mm, Phanteks PH-F140SP 140m... 
CoolingOSMonitorPower
Fractal Design Dynamic GP14 (included with case) Win 10 Pro 64 bit 4K monitor with Freesync EVGA Supernova G3/P2 750W or 850W 
Case
Fractal Design Define R5 Blackout edition 
  hide details  
Reply
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