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Best fans setup config for lowest temps - Antec 1100

post #1 of 8
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Hi everyone! I'm trying to get the best fan setup in my case, an Antec Eleven Hundred. I have a 200mm fan and a 120mm fan (both of these are included with the case), a Corsair SP120 fan, two noctua fans (included with the NH-D14) and a GentleTyphoon 1450RPM. I have to keep the SP120 on the back of the case, as a rear fan, because that one is the only position where the fan is not loud as hell (don't tell me to move this one, i'll just get noise and i won't solve almost nothing rolleyes.gif). Regarding the other fans i placed the GentleTyphoon into one of the two front intake slots available, the superior one (in front of the other one there are 2 HDDs). The two noctua fans are placed on the cooler, and the 120mm Antec (the included one) fan is placed on the spot behind the CPU as an exhaust fan.
Here's a pic to understand (i did it quickly, sorry tongue.gif), btw the white "squares" are the available fans spots, the red "cross" is meaning that the fan is not there anymore, the blue lines indicate the ariflow direction:
https://dl.dropboxusercontent.com/u/18993865/Screenshot/Nuova%20cartella/Fans%20Setup.jpg
Can you help me the best temps possible in my build? (on idle, for now, i get around "30 - 25 - 29 - 30".. i know those aren't bad, but i'm trying to improve them, if it's possible biggrin.gif)
post #2 of 8
Total CFM in should be about equal to total CFM exhaust.
Computer cases are less than 4 cubic feet. So even a little 50 CFM fan will change all the air in the case over 12 times per minute.

The issue is where the air moves inside the case. Often just adding a fan inside the case to direct cool air to where it's needed will dramatically lower temps.

An old overclocker's trick is to cut a hole in the motherboard tray right under the CPU socket and add a small fan there cool the socket and ventilate the underside of the motherboard. Bet you never thought of that.
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post #3 of 8
The 1100 has a fan opening for a 120mm on the back cover to blow on the socket from behind.

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post #4 of 8
Quote:
Originally Posted by billbartuska View Post

... An old overclocker's trick is to cut a hole in the motherboard tray right under the CPU socket and add a small fan there cool the socket and ventilate the underside of the motherboard ...

What do you think works best in that position, pushing at or pulling air from the mobo?
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post #5 of 8
OP, I have the same case, and about to have the same CPU cooler.
I'm hampered by the fact that I have an amazingly mild climate, but considerable time
watching the assorted temp sensors on my Sabertooth 990FX says the 1100 flows
well with just about no hotspots given a good air path.

I run 1650rpm XSPC 120's in the lower front and behind the drive cage,
a pair in the side panel, the stock 200mm upper exhaust after I fixed it
such that it does not click and clack, and will have a matching Noctua exhaust fan
in the upper rear 120mm spot to pull air removed from the heatsink out of the case.
My HD7850 is a proper design that exhaust hot air out the rear of the case where it mounts
rather than dumping it back internally to be dealt with.
All the fans are PWM controlled and generally stay below 1300RPM unless I'm stress
testing, and even then they aren't up much, and don't need to be.
And my back side panel fan is blowing in, there are vents on the rear edge for air to escape
after passing over the motherboard, it seems to work well.

I highly recommend the xspc xinruilian 120mm 1650 rpm 3pin fas, they are cheap,
un-gaudy and very well built, also the DEMCiflex dust filters for both sides.
My little box isn't silent, but it's not obnoxious at all.
 
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post #6 of 8
I usually build with 30-50% more intake cfm of rated flow than exhaust. Reason is intake vents usually have more restriction to airflow than exhaust.. Things like fancy front grille, filter, HDD cage, cables, etc. while exhaust vents are a simple grille.. usually punched in case surface with nothing else between the and coolers to restrict airflow.

You might find this helpful. I post this basic but by no means complete tutorial often. It's a work in progress : Warning: Spoiler! (Click to show)
There is much more to cooling than good cases and good CPU / GPU coolers. Modern GPU's make more heat than CPU... and getting that heat out of the case can be a challenge.

Setting up the case to cool properly is the hardest and most time consuming part of a build... And the most neglected by most builders.

We need at least as much volume of air flowing through the case as the total of CPU and GPU fans flow through their coolers. If we do not have as much air coming into and going out of case as CPU and GPU coolers are passing through and heating up than some of that heated cooler exhaust has to be re-circulated through the coolers. This means the cooler run hotter because the air going through them is hotter.

Cases, especially those with filters, usually benefit from fans with higher static pressure ratings than stock fans... "cooler" fans instead of "case" fans.
Intakes are typically more restricted than exhaust; air filter, more restrictive grill, HDD cage, etc.
I prefer more intake than exhaust. And don't confuse number of fans with amount of airflow... or airflow with airblow

airflow is flowing cool air from intake to component and flowing hot air from component out of case without the hot air mixing with the cool air.

airblow is lots of fans blowing air with some of hot air from components mixing with cool air making it warmer resulting in warm air not cooling components as well as the cool air will.

Putting fans in case as intake and/or exhaust is only the first step. These fans only move air in and out of case.

This does not mean heated air is not mixing with cool air.

Nor does it mean cool air is going to where it is needed.

Getting the air to flow inside of case properly is even more important. We still need to manage where the air flows inside the case. We can do this several ways; deflectors, cooler intake fans, exhaust fans, removing vent grills, using fans with higher pressure/airflow, building ducts to or from CPU/GPU cooler, etc.

Using a remote temperature sensor to monitor what air temps are is the key to finding out where the cool air is flowing and knowing heated air is not mixing into it. By monitoring this we can than make changes to get airflow the way we want it.

I monitor the temps with a cheap indoor/outdoor wired remote or terrarium digital thermometer. Twist a piece of stiff insulated wire into the last 8" of sensor lead so you can bend it to position sensor where you want it... like 40mm in front of your GPU cooler/radiator intake.. to see what the air temp going into CPU / GPU cooler is compared to room temp. The closer it is to room temp the better.. Shouldn't be more 5c maximum, 2-3c is what I usually end up with after 30 minutes full load on both CPU and GPU. Warning: Spoiler! (Click to show)
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post #7 of 8
Quote:
Originally Posted by TELVM View Post

Quote:
Originally Posted by billbartuska View Post

... An old overclocker's trick is to cut a hole in the motherboard tray right under the CPU socket and add a small fan there cool the socket and ventilate the underside of the motherboard ...

What do you think works best in that position, pushing at or pulling air from the mobo?

Depends on the air balance in the case. You don't want that fan working against the others.
My System
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CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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Logiteck G400s none 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
Hard DriveOptical DriveCoolingOS
Samsung 840 PRO Asus DRW-1608P (x2) Custom Water Cooling Win7 (Ult), Win 8.1 & Win Server 2012 R2 
MonitorKeyboardPowerCase
2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
MouseAudio
Logiteck G400s none 
  hide details  
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post #8 of 8
I have the Antec Three hundred case. I get average temps between 19'c and 25'c standard but when playing games it will reach 28-29'c. The only fans I run are cooler master blue neon. I have 2x 120mm in the front as a intake and I have 1x 120mm + 140mm exhaust fan. each fan runs at minimum of 700-800 rpm to keep the noise to a minimum, the fans will go up to 1100 maximum. I found no problems with airflow even though I use a cooler master V8 which is adjusted to the same rpm as the 120mm exhaust. As long as there is no obstruction i.e. cables you should be ok also location of the tower is also a factor as long as there is no obstruction to the exhaust vent.
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