All language subtitles for 3. Inside the PC

Now, as a nerd, one of the things I love to do is get inside the computer.
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So what I'm going to do in this episode is give a quick tour of the major components that are inside
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of a typical system unit on a desktop PC.
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Now keep in mind just because I'm a desktop PC in this situation that doesn't mean that laptops and
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tablets and just about everything else have very similar components.
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So let's just kind of go through this guy.
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Now this is a very nice...beautiful...
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I'm very proud of how nicely I put this together.
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And now I'm going to take it apart on camera.
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This should be fun.
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So first I see these nice little white boxes.
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Watch this.
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So this is just used to control airflow a little bit.
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I'm going to take these parts off and show you some of the neat stuff underneath.
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I'd say don't try this at home but if you're watching a video like this this is what we do at home all
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the time.
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Alright.
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So let's take a look.
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Let's get an idea first of all.
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You can just barely see that,
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but I've got a power supply here and there's tons of power connectors on this particular system they
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actually go underneath. There's a little gap so that the cables aren't laying all over stuff.
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And then they pop up all over the place. First of all let's take a look at this.
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This guy right here right here is a video card.
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Now what I'm going to do is take this video card out.
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Whoo.
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Alright.
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So this is a nice, very nice, high-end video card but by taking that out we can get a little bit better
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vision of what's going on inside this computer.
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First of all this big black rectangle you see here is what we call the motherboard. The motherboard is
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the primary device by which we connect all the innards of the system unit together.
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So things like RAM and CPUs and internal hard drives and just about everything that's inside the box
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connects together via this thing called a motherboard.
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So the motherboard has power connections on here. You see there's a power connection here,
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there's a power connection here, so that's what actually gives power to everybody inside the system.
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So the next thing I want to show you guys
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this right here...come out.
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This is a RAM stick so when we talk about RAM these individual guys are called sticks.
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That's the term, "stick," doesn't say how many megabytes or gigabytes it is, it's just a stick.
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They're actually very very pretty sticks, too, by the way. Underneath here, this is actually a liquid cooling
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system.
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We've got fans and there's liquid which runs in here and underneath here is the CPU.
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You know what, it's going to be a little messy, but let's take a look at the CPU.
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So this fairly messy looking device right here is the CPU for this system. On this particular system,
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this CPU is made by Intel and it's called a Core I9 processor.
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This goo you're seeing on top is called thermal paste.
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The reason...thermal paste, heat dope, it's got 100 names, thermal compound...
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and what that's designed to do is to provide a really good thermal seal. CPUs make a lot of heat.
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This cooling system, this liquid cooling system takes that heat away and then the fans on top blow it
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out.
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So the thermal paste just allows a good heat conductor between the CPU and my cooling system.
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Now let's see if I'm really brave here
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it's going to be hard for you guys to see but that's actually a messy but very functional CPU right
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here and a very powerful one. You'll notice that it snaps in. Different speeds have what are called different
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form factors that allow them to fit in different motherboards.
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We have entire episodes on CPUs so that's one to give you an idea of what that looks like.
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I'll just put that guy back in before I cause any more damage.
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Now as we look around this board you'll see a lot of other things that are kind of interesting.
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First of all is underneath this little bit of heat sink right here
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so you see this guy right here.
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This, believe it or not, is mass storage.
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This is what we call an M.2 SSD.
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Now I've got it under the this thermal tape which actually takes heat away from it but I can pull that
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out and that is the primary storage for this particular system.
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Now if you take a look over here, it's hard,
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it's pretty much impossible even this angle, but these are connections for me to install hard drives.
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I've got slots right here for me to plug in as well.
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A large number of hard drives, six looks to be an absolute maximum for this particular motherboard.
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But if I wanted to add more hard drives like even plug into the back of this system, we call these expansion
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slots. These particular type of expansion slots are known as PCIe and you saw when I pulled the video
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card off it was snapped into one of these expansion slots. Gives PCs a lot of flexibility. If there's
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some type of device I want to plug in that doesn't come with the system
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I can buy an expansion card as we call it, snap it in, and it allows
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great expandability.
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Now on the motherboard itself there's a lot of interesting things that are going on.
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First of all underneath here, and I'm not going to take this off because it's almost impossible, is what
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we call the chipset. The chipset defines all the different features that this motherboard can do.
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How many USB ports it has,
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how many hard drives it can support,
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how many of these PCI slots, all of that is defined by the chipset itself.
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So a lot of times when we're talking about a motherboard we'll say, "Oh it's a particular type of X99
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chipset," or something like that.
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Now we also have...these are power...but all of these connectors here...this is a little bit tricky, but I can pull
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these up so you guys can see it.
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So these are the connectors that allow us to do stuff like the on off switch at the front of the computer,
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reset button, things like that.
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These are all handled through this guy and on this particular system, I might add, was a real pain to get
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those things installed. Again, a little bit tricky to see, but we also have connectors for extra USB,
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all kinds of stuff that you might want to add to a particular system. So that, my friends, is a quick view
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of the inside of a typical system unit for a desktop PC.
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Now in other episodes we're going to go into all of these parts in a lot more detail.
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But for right now, the important thing is that you understand what type of parts to expect, you
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expect to see a power supply,
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you're going to expect a CPU,
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you're going to expect RAM. And have some rough idea of where they're going to fit within the system.
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This is actually the most fun part for me and it looks like it's going to be fun because I get to put
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all this back together right now.