Forum Home
Press F1
Thread ID: 65503	2006-01-20 06:36:00	Case Fan - suck or blow?	Tony (4941)	Press F1

Post ID	Timestamp	Content	User
422784	2006-01-20 08:51:00	best design I have seen is to have sucking in the front and blow it out the back.. more air out then in results in negitve case presure, dust and crud gets sucked in all the cracks in the case. this give lots of dust in the case. more air in than out results in positive case presure, air is forced out all the cracks and dust can only get in throught the sucking fan. put a filter on the one fan and never have dust in the case again :-) easy way to make a filter is just to strech a bit of pantyhose over then fan grill.	robsonde (120)
422785	2006-01-20 09:04:00	to small things.... the fans that are commanly used do not work well with any sort of pressure so you don't really end up with postive or negative presure...well any decent amount that is. pantyhose works fine........for about 3 days then you have pull your case apart to clean it ! i found it much easier to let the dust just get blown straight through and out again ;)	tweak'e (69)
422786	2006-01-20 10:33:00	That reminds me of 2 400w PSU I bought from DSE. The 2 fans on them were both sucking in air. Took em back and got a refund. Trevor :)	Trev (427)
422787	2006-01-20 12:19:00	I reversed the rear fan on my case once to see if it would provide better cooling, but not - my cpu temp increased 10 degrees. you definently want the fan sucking out.	Agent_24 (57)
422788	2006-01-20 19:11:00	There WAS a thread on this a while back, but it needs to be reiterated here . You should have laminair flow through the case by allowing air to be inserted (blowing in) through the front of the case over the hdds, and then another fan educting ( blowing out) of the case from the rear . Any other fans on cards, the CPU or CHA will draw from that airstream going past them from the front inductor . I have also added a sidecase fan that blows directly onto or in the proximity of the vid card . Keep in mind that if you have more eduction (out) than induction (in), you might end up starving your PSU and it's fan(s) from sufficient air flow . If the case pressure values go negative, then there may not be sufficient airflow in the case to allow the PSU to cool . I ran a Baumanometer in the case to test the pressure and found that I had a slightly positive (+) case pressure which then helps push more air into the power supply to help it cool . The dust issue be damned . . . you are operating a machine that will naturally require some maintenance and cleaning it of dust is a small price to pay . Filters are a joke and they clog up so fast here in the dry California semi-deserts that they are totally useless . Placing your tower on or very near the floor will also dirt it up a lot faster than having the unit about 18 to 24 inches off the floor .	SurferJoe46 (51)
422789	2006-01-20 19:43:00	this is a good one, it even sucks the dust out www.dse.co.nz Can you link to the product itself? It sounds interesting.	Greg (193)
422790	2006-01-20 20:08:00	Can you link to the product itself? It sounds interesting. Look for XH5088	Tony (4941)
422791	2006-01-20 20:11:00	Look for XH5088 Ta. I woulda thought that an intake fan (a sukka) would be more useful to have anti-dust capability.	Greg (193)
422792	2006-01-20 20:21:00	This thread has got me thinking, are my fans ok? 4 blowing in from the front (added after built) 1 blowing in from the side window (standard) 2 sucking out from the back (standard) 2 PSU sucking out (standard) 1 CPU (side window blows directly on to it) (standard) 1 GPU (standard), most likely going to add a dual fan PCI card to blow more onto GPU (add after build) 1 Northbridge fan (standard) A total of 12 fans :lol: How does all that look? Thanks all :), Thanks Tony for letting me use your thread :)	The_End_Of_Reality (334)
422793	2006-01-20 20:54:00	Using the latest scientific analysis techniques, "End of reality"... I'd say you blow 25% more than you suck. ....lol Sorry, couldn't help myself.	Nyuuji (5460)
1 2 3 4