WEBVTT

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let me tell you guys I have seen some crazy stuff on that internet which no no

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no not that or oh sorry I misunderstood

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yeah yeah like that gaming or workstation computers with multiple

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processors be they CPUs or gpus have become more common in recent years and

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how to keep them cool the advantages of which we cover here is an incredibly hot

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topic for obvious reasons now the heat generating components in your system are

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going to have heat sinks attached to them you can learn more about these here

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and here and why we need them but the main thing you need to know for this

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video is that unless you start getting into some pretty exotic stuff the way

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all that heat generating componentry stays within its rated operating

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temperature is by dissipating waste heat

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to the surrounding air the trick here is that heat transfer relies on two main

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things for best Effectiveness a lower ambient temperature so how hot the air

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around the heat sink is and more air movement the first one's a bit tricky

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living somewhere cool or using air conditioning helps a lot but because

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most electronics are surrounded by some kind of box the air being used to cool

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them can be considerably hotter than the rest of the room hurting cooling

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efficiency not to mention that the room itself can begin to heat up during heavy

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use I mean we could just pull all that

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stuff away but I guess running your electronics unprotected can have

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unforeseen consequences and even if we don't want to go overboard and head

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outside although I heard it has great graphics indoors you'll find plenty of

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other hazards too like pets and children

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so I guess we're stuck using enclosures to keep our expensive stuff safe so

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let's focus on strategy number two make the air move fast by adding fans but

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that has some drawbacks too there's noise but also one that's potentially

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more problematic a silent killer all around us dust dust clogs the fins of

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heat sinks reducing their effectiveness gunks up the moving parts of fans

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reducing their effectiveness and is just plain gross and adding more air flow

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adds more potential for dust to accumulate unless you do it responsibly

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so how do you practice safe cooling

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balanced air flow fans can be configured in one of two ways intake pulling air

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into the case or exhaust pushing it out but the internet is full of debate about

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the merits of having more of one or more of the other so let's put it to rest if

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you had all your fans pushing air out first they'll all be working against

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each other reducing each other's efficiency and second because fans move

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air rather than creating it they have to get the air they're exhausting from

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somewhere so the internal air pressure will be negative relative to the room

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and the case will pull air in through nooks and crannies where dust can

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accumulate and also be pulled in the other way around trying to inflate your

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computer like a balloon by having everything as an intake has the same

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problem with the fans working against each other but the advantage of blowing

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air out of the small holes in the case

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to prevent dust from entering there but of course that doesn't help if you're

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not filtering the dust out of the air that's being pushed into the case by a

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fan so that my friends is the ultimate

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solution a reasonably balanced airflow

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scheme that leans on the side of positive internal pressure so you're not

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canceling out any of the work that's being done with filters on the intakes

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so that you don't have excess dust coming in and don't worry if you can't

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afford filters used panty hose works great something to note here is that

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surprisingly the conventional wisdom of hot air rises actually has very little

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impact on any of this so the most important takeaway is balance if you

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don't have a fancy smoke machine like the one Silverstone uses to test their

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cases just watch in the longer term for dust accumulation in areas like mesh

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panels and areas around optical drive bays and if you're starting to see that

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in spite of your filtered intakes it might be time to adjust the ratio of

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intake to exhaust for your system speaking of systems sort of

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a store or whether it's a portfolio or something like that love to see that

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anyway I think that's pretty much it guys thanks for watching and as always

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don't forget to subscribe if you haven't already