can you have too many fans?

Do these fans have to be in use? I probably have close to 100 fans on the shelf, and about 32 in use in 7 systems (2 are notebooks). :D

LinusTech is a joke. Case airflow and component temps are not a simple thing to test and determine what is best. It's about the same as installing engine and components in your car with not tuning and expecting it to run like your buddy's does with same engine and parts that had a session or two of chassis dyno tuning.

Here is a basic guide to how airflow works and how to optimize case airflow so we get good component temps.
https://forums.overclockers.co.uk/s...ght=airflow+works+username_doyll#post30354296
 
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doyll said:
4x exhaust and 2x intake (assume filtered) means a lot of the air is leaking into case and bringing in dust

Sorry, but to many of us your suggestion is illogical, and we are not Vulcans either. :D
'Water cooled' at 'reasonable cost' is only possible using poor quality noisy CLCs costing 1.5-3 times as much as decent, quiet air coolers .. if you mean custom loop the cost is double, triple, quadruple the cost of CLCs .. and doubled, tripled quadrupled again when compared to air.
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No not this gaming PC but my HTPC has filterd ones:eek:

Yes agreed custom loop is to expensive
 
Rroff said:
Despite the potential theory I've generally found having the rear fan as an intake actually produces worst performance - I've rarely found a case where it hasn't worked better as an exhaust.
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It may not help with temperatures but it definitely helps with maintaining positive pressure as I have very little dust inside my PC after a couple of months use.

Reducing dust was my primary goal as with 14 fans in my case temps are low enough already :)
 
Well I have 13 fans :P
Enthoo Primo.
2 120mm front intake
4 (240mm radiator) bottom as intake
6 (360mm radiator) top as exhaust
1 120mm rear exhaust.

Never too many.
 
Brazo said:
Erm water cooling still needs air cooling and fans to work ;)
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LOL Good one!
Water cooling just adds another link to the air cooled heat removal chain ..
I've only seen two H2O system that was not air cooled with air cooled radiators. One had radiator submerged in a stream and other had something like 200' of 3/4" plastic buried 2' deep in back garden .. with the biggest pump I have ever seen on a computer system to circulate the water. :D
 
I use a simple formula:

If cpu temp is less than 80c under 100% load, remove a case fan. Repeat until load temps rise to 80c, or case fans equal only one cpu exhaust, and one cpu fan, whichever occurs first.
 
Silly question. What do you all connect your extra fans to? My motherboard supports 3 fans and the cpu fan.
 
12 x case fans on my main rig... I think there is a point where there's no advantage though...

As others have mentioned positive pressure is worthwhile, preferably with intakes filtered, but even when not, at least it means crap doesn't build up in every little panel gap on your PC (just collects in nice easy to clean up clumps on the inside)...

Made the mistake of having negative pressure on a HTPC a couple of years ago and it even pulled crap into the case VFD screen where there was no way of extracting it... Also borked the BD drive through sucking in crud...

Fans on my rig are all Noiseblocker Pro PL2 or PK2:

4 x 120mm on 480mm rad in top of case (outlet)
4 x 140mm fans on 560 rad in lower compartment (intake)
3 x 120mm fans on front (intake)
1 x 120mm fan on rear (outlet)

Just bear in mind if running rads that each rad reduces the airflow by a fair margin so it's not just a case of more fans in than out, you need to consider any airflow restriction too. Easiest way of checking for positive pressure and balance I've found is by using the smoke from a joss stick to make sure any case panel gaps expel air, cheap, easy and even smells good!

E-I
 
leekeene said:
can you have too many fans?
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Yes.

A5ENZZT.jpg
 
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