Time
8 hours 39 minutes
Difficulty
Beginner
CEU/CPE
9

Video Transcription

00:00
welcome to less than 6.1 cooling mechanisms for the CPU and system unit. And this is part one. Okay, unless sending objectives for this lesson is number one, we're gonna start with the basics of cooling your system. So system cooling basics.
00:14
They were gonna talk about case fans, and from there we're gonna discuss heat sinks and also some thermal paste
00:21
and liquid cooling. We're gonna finish up our discussion with that. So let's jump right on in and get started.
00:27
System cooling basics.
00:29
He is the most damaging thing that can occur inside of your computer, and it's vital that we maintain efficient cooling for air flow throughout your system.
00:38
Now, all of your components, it's out of your system are delicate and they need to be protected. And heat is the number one factor that would destroy the components of your system.
00:48
Now, cooling your system is priority. Now, cooling is actually a couple of factors, not just cooling it as we think with fans, which we're going to talk about but also airflow. So proper cooling and air flow is the key of maintaining temperatures inside of your system and protecting your internal components now, airflow consists of
01:07
two things.
01:08
Intake and exhaust. Now we're gonna talk about that a little bit more. So before we step into that, think about this,
01:15
your CPU or in your case, rather, it's a closed environment there. Sure, you have Vance, and you haven't an exhaust fan on the back of the CPU or multiple fans, depending on a particular model. But the key thing for airflow, thus cooling, is an intake of air
01:34
and an exhaustive that air
01:36
and, as you can see from the image I have, are here in the slide. Intake is from the front vince of the computer, sometime the side vents or the Vince that pulls the air into your computer. That air circulates around inside of the system case, and the exhaust is normally the fan in the back of a computer by the
01:56
power supply
01:57
that will pull or exhausted fan out of the CPU case. So again, the key to airflow is intake and exhaust, and that's going to keep your system components cool.
02:13
So let's start talking about case fans. Um, case fans are there, come in many different variety of case fans. Standard case fans boom what we're all used to have custom seeing you can go through to the aesthetic approach with L E. D's and Lights. But the key or the bottom line
02:32
principle or responsibility of the case fan is to exhaust
02:37
or pull that air out of the system to maintain or continue that airflow.
02:42
So there's some things that you need to know about case fans. So fans specifications, you know C F c F M's cubic feet for minute permitted rather so in your case case comes over different sizes. So when you're building a CPU, are you building your own system?
03:00
You have to match that with the proper fan or fans. It may be multiple fans, depending on the case
03:06
that you're using. In the size of the case, cubic feet per minute is how much cubic feet that fan can distribute. As far as how much air can exhaust and pull out of this system, Um, fans will come in multiple sizes, but the most standard sizes. 120 millimeter. That's the most common size.
03:23
One thing you want Thio consider as well when you're building a system or raining
03:29
a fan for system is the fan noise, The fan noise will be measured and D B S o. You want to keep that as a, uh, note as well as far as to make sure that your fans will not be too loud for the system that you're designing a building
03:43
Also the power draw. How much power does that Fay and draw? We're gonna talk about the power wattage requirements later on in these lessons. But he wanted kids make that a consideration. Also, how much power is that fan going to be needing
03:58
now when it comes to case fans, they are two different types of connectors. These are like molex connectors. There's a three pan in a four p in the three pan has done and give you just you what you need the power for that fan. The 4 p.m. That fourth peon is
04:15
going to give you some other options and we're gonna look at that here in a moment.
04:18
One in particular is called the P W m the post with modulation. What that means is, your bios can control this the fans speed so you can write that higher lower. You can set that that fan speed in the BIOS. Also, you want to consider too
04:38
two important factors of case fans.
04:40
Airflow, verse, ecstatic pressure. Now let's kind of talk about the difference between these airflow. Fans operate on an open case. Scenarios are areas. Okay, so you have your case. And even though you have your cover on the case, that pretty much Aaron there's open air.
04:59
So, as we learned previously, that air is being
05:01
There's an intake. That air is being put into the case. It's flowing around. Those components innings been exhausted on the back, through the fate with a fan so standard airflow fan will work with that particular environment. What if you have something called a static pressure fan? What is a static pressure fan?
05:21
So a static pressure friend,
05:24
in the gist of it, is basically a fan that has to push air through elements or blow through and elements. And now you say, What elements are we talking about? So let's think about this a little bit deeper. If you have a fan that's on top of a either a CPU or GPU graphics processor unit
05:44
on, and you have to blow air within the heat, sinks and we're gonna talk about heat sinks in a moment, or you have a cool and radiator, some type of filter that you have to blow across. Some systems have hard drive cages, which are cages, racks of the hard drives and maybe, just like in a server set up,
06:03
and you have to blow air across them,
06:05
so you're static. Pressure fans are going to be a little bit differently because they're not exhausting their Maur blowing in tight or confined areas. So you've got to get a little bit more pressure to blow that area to keep those components cool. So that's a static pressure fan and used in those different outcome elements in environments.

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