Only if your intakes are filtered!Originally Posted by wompwomp;14172167
I read somewhere that positive pressure will reduce the amount of dust in your case but I always thought it was the other way around since it's bringing in more air. Is this true?
No...Originally Posted by Dust;14172195
the idea behind positive pressure is that you have so much air being circulated through the case that dust essentially has no place to land & filters itself out
positive pressure works - but it works better with filters.Originally Posted by wompwomp;14172600
But even with dust filters, it doesn't filter 100% of the dust..
I do believe in the user "Dust" statement a lot though. If you have a good amount of air flowing through your case, it will not allow any dust to settle or land. Instead the dust will have no choice but to be exhausted by the exhaust fans.
Really? Looks like you "read somewhere" about this in the thread you were trolling a couple of days ago on this exact same subject. I guess you get some thrill out of being a PITA and clogging up the board with garbage on subjects that you have no knowledge of.Originally Posted by wompwomp;14172167
I read somewhere that positive pressure will reduce the amount of dust in your case but I always thought it was the other way around since it's bringing in more air. Is this true?
http://www.overclock.net/air-cooling/1059798-5-intake-1-exhaust-enough-6.htmlOriginally Posted by wompwomp;14130372
Go for ultimate positive pressure! 6 intakes no 0 exhaust fans! Remove all of your dust filters as well for maximum cooling! beyahhh!!!!
Originally Posted by Jagged_Steel;14124304
The comment about Positive Pressure making your rig look like "the inside of a bagless vacuum cleaner" is 180 degrees off.
My experience says the opposite of this statement. As another poster noted: In a Negative Pressure system there will be air coming in through every available hole in the case- meaning it will not be filtered. In addition to this is the issue of pressure drop relating to the density of the air in the case compared to outside. I tried a negative pressure case mod to my last Compaq POS rig and it did indeed behave like a bagless vacuum and did little to cool down the old beast. Turning the majority of the fans to blow in and making sure they drew air in through a filter dropped my case temps like a stone and it was clean as a whistle inside- even after months of grinding away. A bagless vacuum cleaner utilizes a DROP in air pressure (negative pressure) to make the particulates fall out of the airstream. Look at a Dyson- those venturies you see compress the incoming dirty air and then rapidly decompress it- this decompression causes the particulates to fall out. Less pressure = less velocity and less fluid tension- which is what holds particulates in suspension in the first place. So having all fans blow out, which creates a pressure drop to air when it enters your case, will indeed make more particulates fall out of the air and stay in your case.
Something that I did not see mentioned anywhere - including the very nice breakdown of cooling system types by N-Sanity, is the basic physics involved in heat transfer. IMO the conclusions he presented are correct, but nowhere did I see mentioned the fact that denser air has a larger mass to soak up heat with. All computer cooling schemes rely on heat transfer rather than heat Radiation (not including computers in space which rely solely on radiation). Heat TRANSFER requires mass to transfer said heat to. No mass = no heat transfer. This is why Thermos bottles have a (near) vacuum for insulation. The only heat that escapes from the inner vessel in a Thermos is through radiation. This is also why liquid (water- mineral oil- etc) cooling is so effective compared to air cooling - you are providing a large amount of MASS for the heat in your machine to TRANSFER to. The air must of course exit the case after soaking up heat, but having more fans blow in than out will result in a Positive air pressure and better cooling than a reduced air pressure system.
Originally Posted by Jagged_Steel ![]() Really? Looks like you "read somewhere" about this in the thread you were trolling a couple of days ago on this exact same subject. I guess you get some thrill out of being a PITA and clogging up the board with garbage on subjects that you have no knowledge of. http://www.overclock.net/air-cooling...-enough-6.html |
A joke has a punchline and it is supposed to make OTHER people laugh. I fully understand that you are amused by mindlessly stirring things up with no goal other than "amusing" yourself - otherwise known as TROLLING. Have fun sitting around laughing at your own "jokes" there dude.Originally Posted by wompwomp;14180734
Trolling? Rofl. It's called joking.. Check like 3-4 posts below that one. Do yourself a favor a get a sense of humor as well as a life brah.