Please help! Fan cooling for my Cooler Master CM 690 III

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MrBlackandWhite

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Aug 24, 2014
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Hello all! I am in the middle of my first build for over 20yrs (first 'real' build anyway) please see below:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor (£157.99 @ Aria PC)
CPU Cooler: Noctua NH-L12 37.8 CFM CPU Cooler (£43.67 @ Scan.co.uk)
Motherboard: Asus Z97-A ATX LGA1150 Motherboard (£106.76 @ Scan.co.uk)
Memory: Crucial Ballistix 8GB (2 x 4GB) DDR3-1866 Memory (£74.00)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Drive (£83.99 @ Amazon UK)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive (£49.98 @ Aria PC)
Video Card: Sapphire Radeon R9 290 4GB Vapor-X Video Card (£329.59 @ Overclockers.co.uk)
Case: Cooler Master 690 III ATX Mid Tower Case (£74.03 @ Scan.co.uk)
Power Supply: EVGA 850W 80+ Gold Certified Fully-Modular ATX Power Supply (£94.99 @ Amazon UK)
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer (£11.79 @ Amazon UK)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) (£83.53 @ Amazon UK)
Monitor: Asus VG248QE 144Hz 24.0" Monitor (£248.51 @ More Computers)
Keyboard: Corsair Vengeance K70 Wired Gaming Keyboard (£104.00)
Mouse: ROCCAT Kone Pure Military Wired Optical Mouse (£50.99 @ Amazon UK)
Total: £1513.82
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-09-04 13:05 BST+0100

I may well crossfire 2 x Radeon R9 290's at some point in the not too distant future playing BF4 multiplayer, hence going with the Asus 144hz monitor.

As I am more or less a complete beginner I would greatly appreciate some help with cooling my build! :) Please see following link for fan options

http://www.coolermaster.com/case/mid-tower-cm690-series/cm693/

I have bought the windowed version, so a side fan is not an option.

I thought perhaps of putting another 200mm Cooler Master Megaflow fan on the top and one underneath? Possibly removing some of the drive bays, positioning the ssd behind the motherboard so i get more airflow through the case? If I go for this setup is there anyhting else I would need? for example temperature probes?

I also am wondering if I should buy a fan controller although as I would have no idea what speed to set the fans I am not sure it would be a worthwhile thing to purchase.

Complete cooling newb looks forward to reading your advice!! Many thanks indeed!

 
Solution
MeteorsRaining
Moving case bays to make way for fan sounds good. You can very well remove the dust filters from top and use them elsewhere. The MoBo's BIOS does a good job at maintaining a good speed/noise ratio, but you can buy one to get absolute control over the fans. Its a very good way, but you can download software to control most fans' speed as well. I leave them at auto and it does a pretty good (and quiet) job :)
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MeteorsRaining

MeteorsRaining

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Jul 27, 2014
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Nice build! I'd prefer neutral air pressure and dust filters on all intake fans. All top and rear fans should be exhaust. Front fans intake. With the basic cooling, the case has:

Front: 200mm
Rear: 120mm

What modifications to be made? Go for a 140/180mm intake on front, making 2 front intakes. Get 2 120/140 exhaust fans to maximize airflow inside the case. Removing drive bays will be a good option as storage drive don't need active cooling.
A good read: http://www.computershopper.com/feature/75-pc-building-tips-drive-installation

A bottom 120mm intake fan will blow cool air from the bottom of the case towards the exhaust upwards, cooling the GPU in the process. So after modifications, the case will have:

Front: 200mm+140/180mm intake
Rear: 120mm exhaust
Top: 2X120/140mm exhaust
Bottom: 120mm intake
Removal of drive bays to increase airflow
Dust filters on all intakes

This'll give excellent airflow across the case.
 
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MrBlackandWhite

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Aug 24, 2014
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HI Meteor. The case already has a 200mm fan in the front and I would like to keep that. I should have mentioned that I want a quiet pc too. I dont want to spend too much either. Is there a problem in one 200m fan bottom and two 140mm fans top? would prefer one 200 really

Azaran, everytime i tried to get advice on this it was borderline regardless of what cpu cooler I went for. Have ordered the Noctua 12 should be hear today, along with the case

edit: Ps what rpm should i be going for not got a clue! :)

Thank you!!
 
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MeteorsRaining

MeteorsRaining

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Jul 27, 2014
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I know it has a 200mm front intake included. You can't include 200mm fan at bottom as the max space which is allowed by the case is for 120mm. If you meant on front, then no that's fine as the fan is pretty big at 200mm.

You can save money by going with negative pressure pushing air out of the case, ie, getting 2 exhausts on top, that's all. That'd eliminate the need for dust filters, which's necessary on any intake fan.

But I'd prefer neutral pressure, for even airflow and cool air from bottom cooling the GPU. A 120mm bottom intake and 1 top 200mm exhuast would o. So the config would be:

Front: 1X200mm intake(included)
Rear: 1X120mm exhaust(included)
Top: 1X200mm exhaust
Bottom: 1X120mm intake w/dust filter

That'd give good airflow :)
 
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MrBlackandWhite

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Aug 24, 2014
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Hello again Mr meteor :)

Thank you for swift reply! Ok sounds good. The case arrived today and having put the psu in place the distance between the drivebays and the back of the psu (bottom of case) is 110mm :/

Will have to see if i can remove the lower case bays to make way for a 120mm fan. PS: the case came with dust filters throughout, bottom top and front. But since the top are going to be exhalent fans guess i dont need the top dust filter.

PS: Is a fan controller the best way to go? I dont plan on running the cpu so overclocked that its on the ragged edge of stabilty :)
 
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MeteorsRaining

MeteorsRaining

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Jul 27, 2014
8,346
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50,565
Moving case bays to make way for fan sounds good. You can very well remove the dust filters from top and use them elsewhere. The MoBo's BIOS does a good job at maintaining a good speed/noise ratio, but you can buy one to get absolute control over the fans. Its a very good way, but you can download software to control most fans' speed as well. I leave them at auto and it does a pretty good (and quiet) job :)
 
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