How many intake fans per exhaust fans?

OneArmedScissor · 04-05-2006, 05:28 PM

I was wondering how many intake fans per exhaust fans would make a system run at optimal air cooling? On a mid-size tower.

Or maybe alittle more accurate... how much CFM intake per CFM outake/exhaust?

brady · 04-05-2006, 05:39 PM

You should match to intake to the outake for optimal "Air Flow" however there are more ways to cool a machine.

brady · 04-05-2006, 05:40 PM

or...

http://www.tweak3d.net/tweak/airflowtweak/

HAVOC · 04-06-2006, 04:32 PM

I've got (2) Aerocool 120mm Turbines ONe intake, one exhaust... I won't consider using anymore fans in my rig. As it is it sounds like it's ready for take off... Also the x1900xtx is loud during load and the zalman 9500led is prety loud too. (4) loud fans at load... pfff...

"Air traffic control... you are cleared for take off.."

My overclocked CPU is the same temp as my ambient case temp at idle.. so the fans are doing their job.

MrCoffee · 04-06-2006, 06:11 PM

Bah, dont complain. I have 9 fans one of which is a delta at about 55db on full whack.
If your PC needs take of clearance then mine needs a launch countdown

brady · 04-06-2006, 06:13 PM

I've got 2!... 1 intake and 1 exaust...
Not OC'd

mole1135 · 04-08-2006, 10:45 PM

ive got the xionII case with 2 80mm antek fans in the front(Intake) 1 120mm fan in the back and 1 80mm in the window(exhaust)

boomstick666 · 04-09-2006, 01:16 PM

i got 7 case fans....5x120mm(1 panaflo=main exhaust, 1=GPU, 1=PCMIC area, 2=front intake), 2x80mm(top and back). its loud. really loud.
but keeps my comp cool...

PZEROFGH · 04-09-2006, 01:25 PM

pfff you guys think 2 case fans are loud

I got 1 120mm intake in the back, 1 80mm intake on the side, 1 blowhole 80mm, 2 exahust 80mm, 1 exahust 80mm in my drivebay, 1 80mm blowing air on my GPU, and a vantec tornado somewhere on the bottom of my case keeping my GPU, mobo, and chipset especially at a cool temp of 30C, usually its at 40-50 without the fan there, my video card is blocking that little fan off

then i have 2 80mm in my psu :|

But then again, i have a fan controller for my case fans, CPU fan controller, and a PSU fan controller

consider myself lucky

but as of now, my X-530's block the fan noise from my computer as these speakers rock

Oh yeah the vantec tornado on full blast makes these really really high pitch noise, but my CPU heatsink at 5000rpm makes these deep low hum :\

æArchOAngelæ · 04-10-2006, 04:00 PM

ive got 1 on the top 3 in the back and 2 in the front and 1 on the side, and aits fine, im actually about to drill more holes and start tearing it up and making a 140mm fan hole on the side panel and a turbine blower on the side like a stacker

04-05-2006, 05:28 PM	#1 (permalink)
OneArmedScissor True Techie Join Date: Feb 2006 Posts: 125	How many intake fans per exhaust fans? I was wondering how many intake fans per exhaust fans would make a system run at optimal air cooling? On a mid-size tower. Or maybe alittle more accurate... how much CFM intake per CFM outake/exhaust?

04-05-2006, 05:39 PM	#2 (permalink)
brady Wizard Techie Join Date: Feb 2005 Posts: 3,665	You should match to intake to the outake for optimal "Air Flow" however there are more ways to cool a machine. __________________

04-05-2006, 05:40 PM	#3 (permalink)
brady Wizard Techie Join Date: Feb 2005 Posts: 3,665	or... http://www.tweak3d.net/tweak/airflowtweak/ __________________

04-06-2006, 04:32 PM	#4 (permalink)
HAVOC Pure American Metal Join Date: Feb 2005 Location: Trotters Walk-In Closet Posts: 3,443	I've got (2) Aerocool 120mm Turbines ONe intake, one exhaust... I won't consider using anymore fans in my rig. As it is it sounds like it's ready for take off... Also the x1900xtx is loud during load and the zalman 9500led is prety loud too. (4) loud fans at load... pfff... "Air traffic control... you are cleared for take off.." My overclocked CPU is the same temp as my ambient case temp at idle.. so the fans are doing their job. __________________

04-06-2006, 06:11 PM	#5 (permalink)
MrCoffee Monster Techie Join Date: Feb 2006 Location: UK Posts: 1,746	Bah, dont complain. I have 9 fans one of which is a delta at about 55db on full whack. If your PC needs take of clearance then mine needs a launch countdown __________________ XP3000 Barton (stock speeds due to instability) Gigabyte GA-7N400 Pro2 v2.0 Corsair Value 2x512MB CL2.5 PC3200 Raptor WD740GD 70GB, SCSI Maxtor Atlas IV 74GB, 80GB ATA Barracuda SB Audigy Benq FP91G+ (x2) EVGA 7800 GS CO (@430/1300) Razer Diamondback Plasma IceMat Siberia Headset

04-06-2006, 06:13 PM	#6 (permalink)
brady Wizard Techie Join Date: Feb 2005 Posts: 3,665	I've got 2!... 1 intake and 1 exaust... Not OC'd __________________

04-08-2006, 10:45 PM	#7 (permalink)
mole1135 Banned Join Date: Feb 2006 Posts: 350	ive got the xionII case with 2 80mm antek fans in the front(Intake) 1 120mm fan in the back and 1 80mm in the window(exhaust)

04-09-2006, 01:16 PM	#8 (permalink)
boomstick666 Ultra Techie Join Date: Nov 2005 Posts: 700	i got 7 case fans....5x120mm(1 panaflo=main exhaust, 1=GPU, 1=PCMIC area, 2=front intake), 2x80mm(top and back). its loud. really loud. but keeps my comp cool... __________________

04-09-2006, 01:25 PM	#9 (permalink)
PZEROFGH Lord Techie Join Date: Jul 2005 Posts: 7,649	pfff you guys think 2 case fans are loud I got 1 120mm intake in the back, 1 80mm intake on the side, 1 blowhole 80mm, 2 exahust 80mm, 1 exahust 80mm in my drivebay, 1 80mm blowing air on my GPU, and a vantec tornado somewhere on the bottom of my case keeping my GPU, mobo, and chipset especially at a cool temp of 30C, usually its at 40-50 without the fan there, my video card is blocking that little fan off then i have 2 80mm in my psu :\| But then again, i have a fan controller for my case fans, CPU fan controller, and a PSU fan controller consider myself lucky but as of now, my X-530's block the fan noise from my computer as these speakers rock Oh yeah the vantec tornado on full blast makes these really really high pitch noise, but my CPU heatsink at 5000rpm makes these deep low hum :\ __________________ E8400 \| Abit IP35 Pro \| 2x2GB G.Skill DDR2-800 \| HIS HD3870 \| 520HX \| CM690 AIM/Xfire - pzerofgh Make Free Money by Doing Offers!! Really Works CLICK NOW

04-10-2006, 04:00 PM	#10 (permalink)
æArchOAngelæ Ultra Techie Join Date: Nov 2004 Posts: 712	ive got 1 on the top 3 in the back and 2 in the front and 1 on the side, and aits fine, im actually about to drill more holes and start tearing it up and making a 140mm fan hole on the side panel and a turbine blower on the side like a stacker __________________ IYAOYAS...lol

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