WEBVTT 00:00:00.000 --> 00:00:04.000 You ever see those videos with thermal goop all over the CPU socket, 00:00:04.000 --> 00:00:07.000 or people jamming things into high-powered fans and thought, 00:00:07.000 --> 00:00:10.000 hmm, what would happen if I did that to my PC? 00:00:10.000 --> 00:00:15.000 Well, that's bad. First of all, you could get hurt. Or worse, you could damage your computer. 00:00:15.000 --> 00:00:18.000 So instead of risking it, let us indulge your intrusive thoughts. 00:00:18.000 --> 00:00:21.000 Like, what would happen if you used your monitor in the Arctic? 00:00:21.000 --> 00:00:25.000 Can liquid crystals freeze? We're about to try all of this and more, 00:00:25.000 --> 00:00:29.000 but, my friends, heed this warning. Do not try this at home. 00:00:29.000 --> 00:00:32.000 Instead, try this segle to our sponsor. 00:00:43.000 --> 00:00:49.000 In theory, modern high-quality pastes are both non-conductive and non-capacitive. 00:00:49.000 --> 00:00:52.000 So, this might work? 00:00:52.000 --> 00:00:56.000 Okay, but even if it's non-conductive, wouldn't that block the pads from touching? 00:00:56.000 --> 00:01:01.000 My theory is that the mounting pressure is going to be so high 00:01:01.000 --> 00:01:04.000 that it's going to kind of mash it out, kind of like when you mount a heat sink. 00:01:04.000 --> 00:01:07.000 It's not mashing out as much as I might have hoped, 00:01:07.000 --> 00:01:10.000 but there's a lot of mounting pressure on the CPU, 00:01:10.000 --> 00:01:13.000 and these are older, larger pins. 00:01:13.000 --> 00:01:16.000 And guys, this was already a motherboard that was a little bit flaky. 00:01:16.000 --> 00:01:20.000 Don't worry, we don't want to sacrifice something that works perfectly. 00:01:20.000 --> 00:01:23.000 Works enough to find out if it works, though. 00:01:23.000 --> 00:01:26.000 Shut up. No way. 00:01:27.000 --> 00:01:29.000 Clearly, we haven't put enough thermal paste in. 00:01:31.000 --> 00:01:39.000 For round two, we're bringing out the big guns. All right, that should be enough that she's going to squeeze out like toothpaste or peanut butter. 00:01:42.000 --> 00:01:45.000 No! This is crazy! 00:01:47.000 --> 00:01:51.000 Okay, I think this is our final stage here. 00:01:53.000 --> 00:02:00.000 Our ratio of thermal paste under the CPU to thermal paste on top of the CPU is extremely high. 00:02:00.000 --> 00:02:03.000 So we should probably get some more paste on top. 00:02:03.000 --> 00:02:08.000 Yeah, that's good, that's good. You know you've always wanted to try it. No! 00:02:08.000 --> 00:02:11.000 What if we run something like actually CPU intensive like Cinebench or something? 00:02:11.000 --> 00:02:16.000 Sure, I can do that. 62 degrees on the CPU. She's flying. 00:02:16.000 --> 00:02:22.000 How is this allowed? I don't know, but it's great because we kind of need this system for our next intrusive thought. 00:02:22.000 --> 00:02:26.000 Inside this environmental chamber is a liquid crystal display, 00:02:26.000 --> 00:02:33.000 but just because they're liquid at room temperature doesn't mean that they are always liquid. 00:02:33.000 --> 00:02:36.000 They can freeze. What is the rated temperature of this monitor? 00:02:36.000 --> 00:02:42.000 It doesn't say, but most are rated to zero degrees while in operation and minus 20 while in storage. 00:02:42.000 --> 00:02:45.000 So that seems like a sensible starting point. 00:02:45.000 --> 00:02:50.000 This is so gross. It feels worse than even just the motion blur. 00:02:50.000 --> 00:02:55.000 Like it almost feels like it leaves an imprint of the starting frame on my eye 00:02:55.000 --> 00:03:00.000 before anything even starts moving at all. It's like you're permanently recovering from a flashbang. 00:03:00.000 --> 00:03:07.000 Yeah, it reminds me of a flashbang where it leaves that previous image imprinted. 00:03:07.000 --> 00:03:12.000 That's what I was looking for. My question now is what happens if we go lower? 00:03:12.000 --> 00:03:15.000 There's no water in the display, so we don't need to worry about the liquid 00:03:15.000 --> 00:03:18.000 expanding as it freezes and breaking the monitor. 00:03:18.000 --> 00:03:24.000 So it's starting to get to the point where this is so nauseating 00:03:24.000 --> 00:03:29.000 that I need to look away from it for a minute, but that's great because I need to talk about what's going on here. 00:03:29.000 --> 00:03:32.000 It shouldn't be the crystals themselves freezing. 00:03:32.000 --> 00:03:35.000 Those should be good down to as low as minus 60, 00:03:35.000 --> 00:03:38.000 but what does happen is they start to gel up, 00:03:38.000 --> 00:03:44.000 which increases the resistance that the display interface needs to overcome in order to twist them. 00:03:44.000 --> 00:03:47.000 So what we're looking at here is the most extreme example 00:03:47.000 --> 00:03:51.000 of how pixel response times affect the gaming experience 00:03:51.000 --> 00:03:56.000 because both of these displays are running at 60 refreshes per second. 00:03:56.000 --> 00:03:59.000 It's just that the pixels take so long to reach the new state, 00:03:59.000 --> 00:04:04.000 we end up with this blurry, flashbang-y, drunk, goggles-y image. 00:04:04.000 --> 00:04:08.000 Oh man, I don't know if we're going to make it to minus 40. 00:04:08.000 --> 00:04:11.000 This is damn near unplayable. You see that? 00:04:11.000 --> 00:04:14.000 Just like with a flashbang, I almost had... 00:04:14.000 --> 00:04:21.000 Yeah! It looks like it's kind of changing in the background a little bit on some parts of the display. 00:04:21.000 --> 00:04:25.000 Oh, did you see that? The very top of the display is still refreshing, 00:04:25.000 --> 00:04:31.000 but the rest isn't. So again, what we're seeing is the way a screen refreshes is typically from top to bottom, 00:04:31.000 --> 00:04:34.000 so it's going like, okay, here's a new fr... 00:04:34.000 --> 00:04:39.000 Here's a new fr... Oh, here we go. This is really interesting too. 00:04:39.000 --> 00:04:43.000 Now we can see that the red pixels, or sub-pixels rather, 00:04:43.000 --> 00:04:46.000 seem to be having the hardest time twisting, 00:04:46.000 --> 00:04:50.000 so maybe their viscosity is higher as temperatures go down. 00:04:50.000 --> 00:04:53.000 We're only at minus 32 right now. 00:04:53.000 --> 00:04:56.000 I really don't think we're going to make it to minus 40. I think she's done, bud. 00:04:56.000 --> 00:04:59.000 Can she even get a static image up there? 00:04:59.000 --> 00:05:03.000 It's kind of starting to kind of do something. 00:05:03.000 --> 00:05:07.000 I think it's fair to say she didn't make it to minus 40. 00:05:07.000 --> 00:05:10.000 Come on out, little buddy. Sorry about that. 00:05:10.000 --> 00:05:15.000 Oh, hey, look at that! She only had to get a little bit warmer on the very front 00:05:15.000 --> 00:05:20.000 for it to be able to display an image again. I got to get the sun plugged before she gets frosty, though. 00:05:20.000 --> 00:05:24.000 Good job, buddy. Here's a fun one. You've probably heard about solar flares 00:05:24.000 --> 00:05:27.000 and how dangerous they can be for computer systems here on Earth, 00:05:27.000 --> 00:05:30.000 and, well, we don't have a sun, 00:05:30.000 --> 00:05:33.000 but what we do have is a CT scanner from Lumafield 00:05:33.000 --> 00:05:37.000 that we can use to blast cosmic-like x-rays at stuff like, 00:05:37.000 --> 00:05:42.000 hey, this computer. All we got to do is close her up 00:05:42.000 --> 00:05:46.000 and configure a couple of things. While Linus is working on that, 00:05:46.000 --> 00:05:49.000 I have some dark urges of my own. 00:05:49.000 --> 00:05:52.000 While everyone knows that you should eject your USB 00:05:52.000 --> 00:05:55.000 before you pull it out so that you don't corrupt your files, 00:05:55.000 --> 00:05:59.000 what would happen if I pulled out maybe the whole SSD? 00:05:59.000 --> 00:06:04.000 We're currently playing Valheim, and it's installed on this drive right here. 00:06:04.000 --> 00:06:08.000 We're walking around the world. Look at all that. What would happen if I just... 00:06:10.000 --> 00:06:13.000 And look at that. We're still playing the game. 00:06:13.000 --> 00:06:17.000 Now, when you're using your computer, the stuff that you're actively using is going to be sitting in RAM. 00:06:17.000 --> 00:06:20.000 So we should be fine for now. We can look around. 00:06:20.000 --> 00:06:23.000 We can jump. We can punch stuff. Like, we're still playing the game, 00:06:23.000 --> 00:06:26.000 but the moment that we have to load something... 00:06:31.000 --> 00:06:35.000 It goes away. But, you see, Windows is still running 00:06:35.000 --> 00:06:40.000 because we haven't removed our boot drive. So what would happen if we did that? 00:06:40.000 --> 00:06:43.000 Look at that. It's crazy. It still works. 00:06:43.000 --> 00:06:46.000 That's because Windows is mostly running in RAM right now. 00:06:46.000 --> 00:06:50.000 You can actually get entire operating systems that will run exclusively in RAM, 00:06:50.000 --> 00:06:54.000 but this isn't one of them, and you'll see that when we say try to look at File Explorer... 00:06:55.000 --> 00:06:56.000 Look at File... 00:06:58.000 --> 00:07:01.000 Look at... There could be some very important information 00:07:01.000 --> 00:07:06.000 traveling between the SSD and your RAM, and it could end up causing severe harm to your system. 00:07:06.000 --> 00:07:10.000 You're probably going to be okay, but hey, why are you tempted in fate? 00:07:10.000 --> 00:07:15.000 That's what we're doing. We tempted. And it's for those very reasons that you probably expect 00:07:15.000 --> 00:07:19.000 that when we pull out our RAM, it shuts down immediately. 00:07:19.000 --> 00:07:23.000 Ooh, spicy. This is what I mean. You don't know what you're going to screw up, 00:07:23.000 --> 00:07:26.000 and now we're in a repair mode. Let's hope that it doesn't slow us down too much. 00:07:26.000 --> 00:07:31.000 Obviously, taking RAM out is going to be a problem, but what would happen if we just, you know, put RAM in? 00:07:32.000 --> 00:07:35.000 I'm so surprised. I thought that we would plug it in. 00:07:35.000 --> 00:07:38.000 It would chip voltage monitor or something. There would be a ShortCircuit 00:07:38.000 --> 00:07:42.000 because of the connecting of the pins and whatever. We don't have 16 gigabytes of RAM right now. 00:07:42.000 --> 00:07:46.000 We're still stuck as if we were running off of the single dim. 00:07:46.000 --> 00:07:49.000 What if I can take this one out now? Hey. 00:07:50.000 --> 00:07:53.000 Maybe that was a fluke. Let's try this a second time. 00:07:54.000 --> 00:07:58.000 You still got the RGB? We've seen some crashes and stuff, 00:07:58.000 --> 00:08:01.000 but I just feel like we haven't actually done any damage. 00:08:01.000 --> 00:08:03.000 What if we delete system 32? 00:08:04.000 --> 00:08:07.000 And delete. It's that easy. 00:08:07.000 --> 00:08:11.000 Except for it isn't. Windows actually doesn't want you to break your own PC, 00:08:11.000 --> 00:08:15.000 and so it asks for trusted installer permission 00:08:15.000 --> 00:08:19.000 to delete the folder, and it won't let you get any further from this. 00:08:19.000 --> 00:08:22.000 Even if you're an administrator, it doesn't matter. But I know of a tool. 00:08:22.000 --> 00:08:25.000 The command line that will let us do anything we want. 00:08:25.000 --> 00:08:28.000 Watch. As I in one simple command. 00:08:32.000 --> 00:08:35.000 And then when I also say yes to all. 00:08:37.000 --> 00:08:40.000 It's a lot of red. Unauthorized access exception. 00:08:40.000 --> 00:08:43.000 Why can't I have a computer that just listens to what I tell it to do? 00:08:43.000 --> 00:08:47.000 I think I know a guy who knows about computers and making them do what he wants. 00:08:48.000 --> 00:08:51.000 It's Jordan. Ah, yes. The command line. 00:08:51.000 --> 00:08:54.000 One final reminder before we do this. 00:08:54.000 --> 00:08:58.000 Don't. Deleting system 32 will harm your computer. 00:08:58.000 --> 00:09:01.000 If you understand this warning, hit the like button to proceed. 00:09:01.000 --> 00:09:06.000 Just down there. Alright. Open up the command line as an administrator and type this in. 00:09:08.000 --> 00:09:12.000 Congratulations. You now own all the folders in system 32. 00:09:12.000 --> 00:09:16.000 You've massively compromised the security and the functionality of your PC. 00:09:16.000 --> 00:09:19.000 But we're not done yet. Let's confirm this kill. 00:09:19.000 --> 00:09:22.000 Use this next command to change your access control level. 00:09:23.000 --> 00:09:25.000 And now, you just delete system 32. 00:09:29.000 --> 00:09:33.000 Okay, so we removed a lot of files. But why is Windows still working? 00:09:33.000 --> 00:09:36.000 What if we try, like, doing something? Whoa. 00:09:36.000 --> 00:09:39.000 You've angered it. This is all your fault. Controls are to escape. 00:09:39.000 --> 00:09:43.000 Controls are to delete. Failure to display security. 00:09:43.000 --> 00:09:46.000 I've never seen that before. Me neither. I like that just X. 00:09:46.000 --> 00:09:49.000 Just X. Do you want to try rebooting it? 00:09:49.000 --> 00:09:52.000 Yeah, okay. Automatic repair. Oh, my. 00:09:52.000 --> 00:09:55.000 It's so borked. It can't do anything. It's booting into here. 00:09:55.000 --> 00:09:58.000 That implies that the recovery files were in system 32. 00:10:00.000 --> 00:10:03.000 I think this computer is sufficiently borked. Okay. 00:10:03.000 --> 00:10:06.000 My work here is done. Yes, you've done a wonderful job. 00:10:06.000 --> 00:10:09.000 Now it's my turn. Adam's making me do this. 00:10:10.000 --> 00:10:11.000 It'll be fun. 00:10:15.000 --> 00:10:19.000 Don't worry, it's life-free. Yeah, this isn't as satisfying as I'd hoped. 00:10:19.000 --> 00:10:23.000 Not only is it not fun, it's a waste of solder. 00:10:23.000 --> 00:10:27.000 Yeah, really is. Let's do something slightly less stupid. 00:10:27.000 --> 00:10:31.000 PC fans at their core are basically just an electric motor. 00:10:31.000 --> 00:10:34.000 You apply some power to it, it spins your fan. 00:10:34.000 --> 00:10:39.000 But if you are the one that spins it, suddenly your electric motor becomes an electric generator. 00:10:39.000 --> 00:10:42.000 Let's test it. Here we have a multimeter connected to a fan, 00:10:42.000 --> 00:10:45.000 a tachometer, and some compressed air. 00:10:45.000 --> 00:10:49.000 Now let's spin it and kill the motherboard. 00:10:49.000 --> 00:10:53.000 Given that we only saw like 6 volts on the multimeter here 00:10:53.000 --> 00:10:56.000 when we spun this fan up, I think the motherboard is going to be fine. 00:10:56.000 --> 00:10:59.000 These are 12 volt fans. The header can probably handle 12 volts. 00:10:59.000 --> 00:11:03.000 Here's the graph of our fan speed. It's currently spinning at 2,000 RPM. 00:11:03.000 --> 00:11:06.000 And if we just give it a little bit of encouragement here. 00:11:07.000 --> 00:11:09.000 There we go. Look at that. 00:11:11.000 --> 00:11:13.000 We need the graph to go higher. 00:11:14.000 --> 00:11:16.000 All right, we're at a 7,500 RPM. 00:11:19.000 --> 00:11:22.000 For whatever reason, I think it's going 1,000 RPM now. That is not correct. 00:11:25.000 --> 00:11:32.000 It's fine. It's totally fine. The RPMs for whatever reason went down to like 900 RPM 00:11:32.000 --> 00:11:37.000 when it was going over 7,000. But I'm guessing that's just the math getting screwed 00:11:37.000 --> 00:11:42.000 when it goes way faster than expected. But according to this, it went up to 7,600 RPM 00:11:42.000 --> 00:11:46.000 and she's totally fine. I don't think you have to worry about this too much. 00:11:46.000 --> 00:11:49.000 But you definitely have to worry about water. 00:11:49.000 --> 00:11:52.000 I don't know why I said it like that. Water. 00:11:52.000 --> 00:11:56.000 Technically, water doesn't damage your computer. Pure water isn't conductive. 00:11:56.000 --> 00:12:00.000 It's what's dissolved inside the water that counts. 00:12:00.000 --> 00:12:04.000 This isn't pure water though. So this is probably pretty bad. 00:12:04.000 --> 00:12:07.000 So Adam's currently playing crisis and he's just going to keep playing 00:12:07.000 --> 00:12:10.000 until this computer stops working. Is it still going? 00:12:10.000 --> 00:12:14.000 It's going fine. Yeah, we're doing totally fine. See, spraying water on computers again 00:12:14.000 --> 00:12:17.000 can be fine until that schmoo builds up. 00:12:17.000 --> 00:12:20.000 Unfortunately, everything's got schmoo in it. 00:12:20.000 --> 00:12:23.000 So at some point, this will give out. 00:12:23.000 --> 00:12:26.000 Is it still going? No. Oh. 00:12:26.000 --> 00:12:29.000 Game over. Would you like me to keep going? Yeah, I think we should stop. 00:12:29.000 --> 00:12:32.000 Okay. The fans are still spinning. 00:12:32.000 --> 00:12:35.000 The power supply has not tripped. Yeah. 00:12:35.000 --> 00:12:41.000 Despite you spraying directly into the back of it. Bzz, bzz. 00:12:41.000 --> 00:12:44.000 Why is there thermal paste all over the CPU? 00:12:44.000 --> 00:12:49.000 Linus. Five hours later, we're coming back to our system 00:12:49.000 --> 00:12:53.000 that we put inside the Luma field and am I expecting there to be anything wrong with it? 00:12:53.000 --> 00:12:56.000 It didn't even so much as crash. Well, here's the thing. 00:12:56.000 --> 00:12:59.000 This blasts X-rays, which I don't know if you've ever been to an airport, 00:12:59.000 --> 00:13:02.000 but your laptop goes through an X-ray reader 00:13:02.000 --> 00:13:07.000 every time you go on there. Sure. If your laptop isn't a, you know, analog film camera, 00:13:07.000 --> 00:13:10.000 then it's probably not going to have an issue with that. 00:13:10.000 --> 00:13:15.000 Yeah. At first, Luma field does publish guidelines 00:13:15.000 --> 00:13:19.000 for how long is safe to expose electronics to their machine. 00:13:19.000 --> 00:13:23.000 And they're pretty long and they're probably padding the estimates. 00:13:23.000 --> 00:13:26.000 Yeah. And even if we were trying to guarantee 00:13:26.000 --> 00:13:29.000 that something went wrong with this, who knows if it would actually affect something 00:13:29.000 --> 00:13:35.000 that matters on what we're doing on our system. We saw this actually when we tried to EMP blast 00:13:35.000 --> 00:13:39.000 literally the RAM chips on a laptop. We had to get like right in there. 00:13:39.000 --> 00:13:40.000 They're pretty resilient. 00:13:47.000 --> 00:13:50.000 So if you ever want to bring your laptop to your next CAT scan, 00:13:50.000 --> 00:13:53.000 you can totally do that. Tell the doctors that we said it was okay. 00:13:53.000 --> 00:13:56.000 Do you know what else is okay? A segue to our sponsor. 00:13:57.000 --> 00:14:00.000 If you guys enjoyed this video, maybe check out the one where we used 00:14:00.000 --> 00:14:05.000 the car radiator to cool a computer. It wasn't successful, but it kind of had the same energy. 00:14:05.000 --> 00:14:06.000 Great.