A few questions regarding fans

petersonbill64 · 07-15-2008, 08:05 PM

My main question is this: Is it bad to not have an intake fan? Right now my case has 3 fans (not including the PSU fans). The one on the side panel of the case is currently pointing outwards, and the two back case fans are pointed inward. My plan, after I get my new mobo and CPU Fan, is to aim the CPU fan at the two back case fans (see CPU fan pictures to see what I mean by aim) which would be flipped to point outwards. I'm pretty sure this is the best way to redirect the CPU heat, but my question is whether I should have the side panel fan pointing inwards or outwards. This fan is located near but not exactly above the CPU. So, in short, output or input for my side panel fan?

Question 2 (Regarding the CPU fan I linked in question 1): This cooling unit has a 92mm fan mounted on it. Based on the pictures, it looks like I can take off this fan and replace it with a more powerful one, but I'm not totally sure. Is it possible?

Question 3: This one may be hard to figure out, but, if I use the CPU fan linked in part 1 pointed at the 2 case fans in the case linked in that part, but I replaced the 2 fans with 2 of these bad boys, would it fit, or do I need smaller (depth-wise) case fans? And yes, I know 2 of those fans would turn my computer into the decibel equivalent of an airplane.

**magnethead** · 07-15-2008, 08:41 PM

All front and side fans should be intake. All top and rear fans should be exhaust.

petersonbill64 · 07-16-2008, 05:44 AM

ok, makes sense

**stressfreesoul** · 07-16-2008, 10:50 AM

He said 'should'. There is no gospel on case airflow dynamics!! For example, my side fan sucks out warm air from my graphics card area, but doesn't disrupt the front to back "main" flow.

07-15-2008, 08:05 PM	#1 (permalink)
petersonbill64 Registered User Join Date: Jul 2008 Posts: 9 OS: xp sp2	A few questions regarding fans My main question is this: Is it bad to not have an intake fan? Right now my case has 3 fans (not including the PSU fans). The one on the side panel of the case is currently pointing outwards, and the two back case fans are pointed inward. My plan, after I get my new mobo and CPU Fan, is to aim the CPU fan at the two back case fans (see CPU fan pictures to see what I mean by aim) which would be flipped to point outwards. I'm pretty sure this is the best way to redirect the CPU heat, but my question is whether I should have the side panel fan pointing inwards or outwards. This fan is located near but not exactly above the CPU. So, in short, output or input for my side panel fan? Question 2 (Regarding the CPU fan I linked in question 1): This cooling unit has a 92mm fan mounted on it. Based on the pictures, it looks like I can take off this fan and replace it with a more powerful one, but I'm not totally sure. Is it possible? Question 3: This one may be hard to figure out, but, if I use the CPU fan linked in part 1 pointed at the 2 case fans in the case linked in that part, but I replaced the 2 fans with 2 of these bad boys, would it fit, or do I need smaller (depth-wise) case fans? And yes, I know 2 of those fans would turn my computer into the decibel equivalent of an airplane.

07-15-2008, 08:41 PM	#2 (permalink)
magnethead Registered User Join Date: Mar 2006 Location: Texas, USA Posts: 3,570 OS: Vista ultimate 32bit My System Blog Entries: 3	Re: A few questions regarding fans All front and side fans should be intake. All top and rear fans should be exhaust. __________________ For proper support: what are you running? graphics, cpu, m/board, ram, PSU brand wattage PCI-E requires 26 amps at 12 volts. That's a 650W PSU. Power Supply Info and Selection . Info on thermal compounds & application . TEST PSU USING MULTI-METER . Bench Testing Your System

07-16-2008, 05:44 AM	#3 (permalink)
petersonbill64 Registered User Join Date: Jul 2008 Posts: 9 OS: xp sp2	Re: A few questions regarding fans ok, makes sense

07-16-2008, 10:50 AM	#4 (permalink)
stressfreesoul Semi-Absent (life, eh?) Join Date: Mar 2008 Location: County Durham UK Posts: 1,852 OS: XP, Win7 RC x64, Ubuntu x64 multiboot My System Blog Entries: 7	Re: A few questions regarding fans He said 'should'. There is no gospel on case airflow dynamics!! For example, my side fan sucks out warm air from my graphics card area, but doesn't disrupt the front to back "main" flow. __________________ TSF Folding@Home, find out how to do your bit in the fight against Cancer "Always do sober what you said you'd do drunk. That will teach you to keep your mouth shut" xbox Live tag: storiedmedal Warning!! GTA IV addict! Join my game at your peril!