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Advice on cooling a mini itx config

post #1 of 8
Thread Starter 
Hello OC community,

I plan to build a mini itx config.
I have already chosen most of the components :
CPU - Intel i7 6700 (non K) 65W
CPU fan - Scythe Big Shuriken 2
Case - Lian-Li PC-Q21
PSU - SilverStone SX500-LG
MB - Asus Z170I PRO GAMING
RAM - 32 Go low profile
SSD - Samsung 950 Pro M.2
no GPU

I am looking for a piece of advice about the case fan.
The case is a tiny case. There is place for only one fan (120mm) and it is on the bottom panel.








I want to build this pc while keeping in mind that it should be as quiet as possible.
But, there is not so many vents. Should I add this optionnal fan or not? (if I can buy some silence by saving my money on the fan, it would be good).
This fan should be an intake or an exhaust fan? I can't see how the airflow ciruclate inside the case.

Thanks in advance.
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post #2 of 8
That really depends on what you are going to be doing with the computer. If you are going to overclock, get the fan. If you are going to run processor intense applications for long periods get the fan. If you are going to use it as a media center and watch youtube videos all day, you likely wont need it.

It's not likely anything will heat up enough inside there under minimal load to require a large amount of cooling. But if that ends up not being the case, you can always add one later. Bear in mind that the cooler you keep your equipment, the longer it is likely to last.

If you get one, I would make it an intake fan. This will supply constant fresh air and provide a little pressure in side the case, keeping dust levels low.
Edited by WizardontheJob - 11/4/15 at 12:28pm
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Jarvis
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Pepto Pony
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CPUMotherboardGraphicsRAM
AMD FX-8350 @ 4.8Ghz CROSSHAIR V FORMULA-Z MSI GTX 980 Gaming 4g 16Gb G. Skill Ripjaws 4x4 @ 1600 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 PRO 128Gb SSD Intel 160 Gb SSD Intel 250 Gb SSD Generic DVD-RW 
CoolingCoolingCoolingCooling
2 x Noctua (NF-P12-1300 )1300rpm Premium Silent... Alphacool NexXxos UT60 Full Copper Radiator 240 Noctua NF-A6X25 FLX Quiet Computer Cooling Fan ... NZXT Sentry Mesh Fan Controller w/ Five 30 watt... 
CoolingCoolingCoolingCooling
2 x Corsair Air Series SP120   COUGAR CF-V12H Vortex Hydro-Dynamic-Bearing  Monsoon 90° Rotary Angle Fitting - 5/8" - Red Bitspower Dual / Single D5 Top Upgrade Kit 100 ... 
CoolingCoolingCoolingCooling
ModMyToys DreamFlex Premium 3/8" ID Tubing Reta... Coolance Liquid Coolant Bottle, 700mL Fluoresce... Coolance PMP 450 Variable Speed D5 Pump Bitspower D5 Mod Top V2 Pom version 
OSMonitorKeyboardPower
Microsoft Windows 7 Ultimate Samsung KS8000 4k UHD 65" Microsoft Wireless Comfort 5000 Keyboard and Mouse SeaSonic M12II 750 
CaseAudio
My TV Stand Cabinet Creative Sound Blaster X-Fi Titanium 
CPUMotherboardGraphicsRAM
FX-4300 Gigabyte GA-78LMT-USB3 EVGA Geforce GTX 260 G.Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair SSD Samsung 7200 Laptop drive Some DVD Burner I took out of a dead Dell. Noctua NH-C12P SE14 
MonitorKeyboardPowerCase
Dell 19" 16:9 Logitec wireless Enermax 650w Apevia X-Cruiser3 Pink 
CPUMotherboardGraphicsRAM
A6-6400K Dual Core MSI A78M-E35 Onboard 4Gb G.Skill Ripjaws 1600Mhz (2 x 2) 
Hard DriveHard DriveOptical DriveCooling
Intel 320 SSD Western Digital 2.5" 1Tb 7200rpm  LG External Blue-ray Combo Drive Noctual NH-L9a 92mm SS02 
OSMonitorKeyboardPower
Windows 7 Ultimate 64bit Toshiba Regza 52" 1080p Logitech K400 Antec EarthWatts Green EA-380D 
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post #3 of 8
Thread Starter 
Thank you for your post.

I'm a developer. I work on WAMP and Android Studio. I will probably work with virtual machines.
It is not meant to play video games.
It is going to be turned on 10 hours a day, almost every day.
I won't overclock the cpu, this is why I chose a non k version.

Actually, I'm wondering how the hot air escapes. It usually goes up but on the side of this case, the vents are located at the bottom. Are they useful?
I had the idea to use the fan case as an exhaust fan to evacuate the hot air. So the air goes out through the rear and the bottom. Is this a good idea?

Another question : without the fan case, does the fresh enters naturally from below?
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Intel Core i7-6700 Asus Z170I PRO GAMING Corsair Vengeance LPX 2 x 16 Go DDR4 3200MHz C16 Samsung 950 Pro M.2 NVMe 
CoolingOSPowerCase
Scythe Big Shuriken 2 Rev. B Windows 10 Pro x64 SilverStone SX500-LG Lian-Li PC-Q21 
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post #4 of 8
Most of the hot air will escape out of the vents on the side and the back. Your PSU should also exhaust a lot of heat. If you have problems with temperature, it is likely that you don't have enough fresh air entering. The best way to do that is a intake fan. If you only rely on exhaust fans to create negative pressure to draw in fresh air, you have 2 problems: 1. you likely wont get enough fresh air and 2. Your computer will fill with dust. Negative pressure inside your case essentially turns every hole in it, into a vacuum for dust.
Jarvis
(26 items)
 
Pepto Pony
(12 items)
 
MrDVR
(15 items)
 
CPUMotherboardGraphicsRAM
AMD FX-8350 @ 4.8Ghz CROSSHAIR V FORMULA-Z MSI GTX 980 Gaming 4g 16Gb G. Skill Ripjaws 4x4 @ 1600 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 PRO 128Gb SSD Intel 160 Gb SSD Intel 250 Gb SSD Generic DVD-RW 
CoolingCoolingCoolingCooling
2 x Noctua (NF-P12-1300 )1300rpm Premium Silent... Alphacool NexXxos UT60 Full Copper Radiator 240 Noctua NF-A6X25 FLX Quiet Computer Cooling Fan ... NZXT Sentry Mesh Fan Controller w/ Five 30 watt... 
CoolingCoolingCoolingCooling
2 x Corsair Air Series SP120   COUGAR CF-V12H Vortex Hydro-Dynamic-Bearing  Monsoon 90° Rotary Angle Fitting - 5/8" - Red Bitspower Dual / Single D5 Top Upgrade Kit 100 ... 
CoolingCoolingCoolingCooling
ModMyToys DreamFlex Premium 3/8" ID Tubing Reta... Coolance Liquid Coolant Bottle, 700mL Fluoresce... Coolance PMP 450 Variable Speed D5 Pump Bitspower D5 Mod Top V2 Pom version 
OSMonitorKeyboardPower
Microsoft Windows 7 Ultimate Samsung KS8000 4k UHD 65" Microsoft Wireless Comfort 5000 Keyboard and Mouse SeaSonic M12II 750 
CaseAudio
My TV Stand Cabinet Creative Sound Blaster X-Fi Titanium 
CPUMotherboardGraphicsRAM
FX-4300 Gigabyte GA-78LMT-USB3 EVGA Geforce GTX 260 G.Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair SSD Samsung 7200 Laptop drive Some DVD Burner I took out of a dead Dell. Noctua NH-C12P SE14 
MonitorKeyboardPowerCase
Dell 19" 16:9 Logitec wireless Enermax 650w Apevia X-Cruiser3 Pink 
CPUMotherboardGraphicsRAM
A6-6400K Dual Core MSI A78M-E35 Onboard 4Gb G.Skill Ripjaws 1600Mhz (2 x 2) 
Hard DriveHard DriveOptical DriveCooling
Intel 320 SSD Western Digital 2.5" 1Tb 7200rpm  LG External Blue-ray Combo Drive Noctual NH-L9a 92mm SS02 
OSMonitorKeyboardPower
Windows 7 Ultimate 64bit Toshiba Regza 52" 1080p Logitech K400 Antec EarthWatts Green EA-380D 
CaseAudioOther
A piece of plywood and some zip ties. Onboard Hauppauge WinTV HVR-2250 dual tuner card. 
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Jarvis
(26 items)
 
Pepto Pony
(12 items)
 
MrDVR
(15 items)
 
CPUMotherboardGraphicsRAM
AMD FX-8350 @ 4.8Ghz CROSSHAIR V FORMULA-Z MSI GTX 980 Gaming 4g 16Gb G. Skill Ripjaws 4x4 @ 1600 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 840 PRO 128Gb SSD Intel 160 Gb SSD Intel 250 Gb SSD Generic DVD-RW 
CoolingCoolingCoolingCooling
2 x Noctua (NF-P12-1300 )1300rpm Premium Silent... Alphacool NexXxos UT60 Full Copper Radiator 240 Noctua NF-A6X25 FLX Quiet Computer Cooling Fan ... NZXT Sentry Mesh Fan Controller w/ Five 30 watt... 
CoolingCoolingCoolingCooling
2 x Corsair Air Series SP120   COUGAR CF-V12H Vortex Hydro-Dynamic-Bearing  Monsoon 90° Rotary Angle Fitting - 5/8" - Red Bitspower Dual / Single D5 Top Upgrade Kit 100 ... 
CoolingCoolingCoolingCooling
ModMyToys DreamFlex Premium 3/8" ID Tubing Reta... Coolance Liquid Coolant Bottle, 700mL Fluoresce... Coolance PMP 450 Variable Speed D5 Pump Bitspower D5 Mod Top V2 Pom version 
OSMonitorKeyboardPower
Microsoft Windows 7 Ultimate Samsung KS8000 4k UHD 65" Microsoft Wireless Comfort 5000 Keyboard and Mouse SeaSonic M12II 750 
CaseAudio
My TV Stand Cabinet Creative Sound Blaster X-Fi Titanium 
CPUMotherboardGraphicsRAM
FX-4300 Gigabyte GA-78LMT-USB3 EVGA Geforce GTX 260 G.Skill Ripjaws X 
Hard DriveHard DriveOptical DriveCooling
Corsair SSD Samsung 7200 Laptop drive Some DVD Burner I took out of a dead Dell. Noctua NH-C12P SE14 
MonitorKeyboardPowerCase
Dell 19" 16:9 Logitec wireless Enermax 650w Apevia X-Cruiser3 Pink 
CPUMotherboardGraphicsRAM
A6-6400K Dual Core MSI A78M-E35 Onboard 4Gb G.Skill Ripjaws 1600Mhz (2 x 2) 
Hard DriveHard DriveOptical DriveCooling
Intel 320 SSD Western Digital 2.5" 1Tb 7200rpm  LG External Blue-ray Combo Drive Noctual NH-L9a 92mm SS02 
OSMonitorKeyboardPower
Windows 7 Ultimate 64bit Toshiba Regza 52" 1080p Logitech K400 Antec EarthWatts Green EA-380D 
CaseAudioOther
A piece of plywood and some zip ties. Onboard Hauppauge WinTV HVR-2250 dual tuner card. 
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post #5 of 8
Thread Starter 
Well, thank you very much for the explanations.
I think I'm going to order a fan case.
I will take a look a the temperatures without mounting it. If the temps are too high, I'll place it.
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Scythe Big Shuriken 2 Rev. B Windows 10 Pro x64 SilverStone SX500-LG Lian-Li PC-Q21 
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Scythe Big Shuriken 2 Rev. B Windows 10 Pro x64 SilverStone SX500-LG Lian-Li PC-Q21 
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post #6 of 8
I would go ahead and put it in. You can always reduce the speed to around 800 RPM in the bios which would make it virtually silent. I have 2 PC's with those Big Shurikens and they are very quiet.
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RONIN
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Aquastein
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Crucial M4 128GB SATA III Win 7 Pro 64 bit 60" Samsung Plasma HD Plex 250 watt 
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Samsung: 840 Pro 128GB SSD WD: Black 500GB 2.5" Hitachi: Slim Optical Blu-ray drive XSPC: 120mm Radiator 
CoolingCoolingCoolingCooling
XSPC: Raystorm series CPU & GPU waterblocks Laing: DDC-1T pump Bitspower: 150mm Reservoir (Ice Blue) EK, Bitspower, & Monsoon fittings 
CoolingCoolingOSPower
XSPC: 3/8" ID X 5/8" OD flexible tubing Monsoon: 3/8" X 1/2" Acrylic hardline tubing Win 7 Pro OEM 64-bit Seasonic: SS-460FL Fanless / Modular PSU 
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post #7 of 8
I think you might find "Ways to Better Cooling" link in my sig useful. 1st post is index, click on topics of interest to see them.

Optimizing case airflow makes a big difference in cooling. With system working hard case air temp can easily be 10-15c warmer than room, but with a little work it can be only 2-5c warmer.
http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data/0_20#post_22319249

I would first get a good 120mm PWM fan for bottom intake and use PWM signal from CPU fan header to control it. same as CPU cooler fan.
http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data/0_20#post_22319246

Raising the case so there is 35-40mm clearance between it and what it sets on will give a similar airflow area to the bottom intake as the fan airflow area.
http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data/0_20#post_22657923

The sky and our imagination are the limits of what we can do. thumb.gif
post #8 of 8
Thread Starter 
Thanks for the links.
I have already read them and I found it very useful. But that made me ask more questions because I couldn't apply the advices in such a tiny case.
At the moment, I think the rig is quite well designed. I am going to add a fan in the below panel.
Now, I'm on the hunt for a quiet and efficient one.
If anyone can suggest me one which matches my requirements, I allow you to do so. tongue.gif
I am looking for one which size is 120 mm. PWM is not necessary as the motherboard can't handle it (the only one is reserved for the CPU fan). It will be placed as a horizontal intake fan.

The first ones I found are :
- Scythe Gentle Typhoon (hard to find one available as they are discontinued)
- Scythe GlideStream
- Be Quiet Silent Wings 2
- ThermalRight TY-140 (this is a 140 mm fan but it can be mounted in a 120 mm installation)
Edited by rhayy - 11/6/15 at 2:48am
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CoolingOSPowerCase
Scythe Big Shuriken 2 Rev. B Windows 10 Pro x64 SilverStone SX500-LG Lian-Li PC-Q21 
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Dev Machine
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CoolingOSPowerCase
Scythe Big Shuriken 2 Rev. B Windows 10 Pro x64 SilverStone SX500-LG Lian-Li PC-Q21 
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