Last edited by VANGUARD; September 8th, 2012 at 17:50.
Negative air pressure unless its a Air conditioned room. For BD it is appropriate for most users who doesn't have AC. IMO Positive brings dust and hot air during summer, so its no use at all.
Negative air pressure so that most of the dust entering gets out though the exhaust. Even though I have an AC room, I still try to maintain a negative pressure most of the time.
Positive for me. Works well with my components and keeps out the dust too.
I prefer positive solely for the reason that it keeps dust out, and I've a well balanced airflow so it doesn't hinder any performance/trapping hot air.
Negative AP te amar dust kom duke and Case er temp o kom thake. Agree with Excavator. I tried to balance but then seen lots of dust/mosha/pokamakor entered in my casing through intake.
in the end..it doesnt matter if its +/-/neutral...the difference is minimal and many factors contribute as well...so depending on the surrounding environment one may get good results with +ve AP, others may get good results with -ve AP while the rest with neutral AP..if you really want to know which one is best for you...you have to experiment and see the difference for yourself
First i used positive pressure to keep the inside clean. Then i found out hot air are getting trapped inside. Then switched to negative, dust accumulation is increased but the system is 4C cooler.
Vous n'avez pas vraiment connaître quelqu'un qu'en le combattant.
I'd suggest to opt any of them depending on the following criteria,
- Negative Air Pressure: Negative pressure yields optimum air flow in most of the scenario. Go for this only if the room environment is air tight/air conditioned. When case airflow sets to this type it creates a vacuum inside the case due to pressure of more exhaust air. If sets too high, it'll literally take in air from every air hole as well as dusts near the chassis outside. Not that it only let open the grand entrance for an immense amount of dusts but this may even cause performance downgrade in several aspects depending on the way of utilizing air of your components. Take a look at this, for instance. And if you happen to be a uber-lazy guy like me doesn't like to blow the dust off your rig in 4-5 months or even more then negative pressure isn't for you. Dust, ashes these are one of the arch enemy of proper heat dissipation.
- Positive Air Pressure: Theoretically not the best solution yet not that half bad in real either. It definitely can serve a good ventilation and ought to be sufficed for most of the rig if fans are placed properly. Allows relatively less amount of dusts entrance thus, the interior get more neat. However, it has its shortcomings too, esp. irrationally placed several fans for side intake often greatly harm the natural air flow. Again, this also depends on the air utilization method of the components that you've.
I personally used to prefer negative air pressure for optimum air flow. But now positive air pressure will definitely get my vote. In addition, performance drop is barely visible in real scenario if you don't have a heavily OCed machine or the case exterior surrounding is too hot.