서버 냉각 시스템 부식 조사 및 해결

Lius는 갈바닉 부식으로 인해 서버 냉각 시스템에 장애가 발생하여 광범위한 문제 해결과 잠재적인 장비 손실로 이어졌습니다.

### 서버 냉각수 재해: 갈바닉 부식 문제 해결
* 😱 Linus는 서버 냉각 루프에서 누수가 발생하여 **여러 시스템이 손상될 수 있었던 비참한 날**에 대해 이야기합니다.
* 🔍 라이너스는 갈바닉 부식을 원인으로 의심하지만 **루프에 희생 양극이 없다**는 사실에 당황합니다.
* 🔧 그는 영향을 받은 부품을 분해하여 **일반적인 갈바닉 부식 메커니즘과 일치하지 않는 비정상적인 부식 패턴**을 발견합니다.
* 🖥 ️ 라이너스와 그의 아들은 루프에 있는 다른 시스템을 점검하기 시작했고, **6개 시스템 중 하나만 심각한 부식**이 발생한 것을 발견했습니다.
* 🛠 분해 과정이 자세히 설명되어 있으며, **라이너스는 물을 빼고 부품의 손상을 평가하는 단계**를 설명합니다.
* 💡 피해에도 불구하고 대부분의 시스템이 살아남았기 때문에 라이너스는 **"기대할 수 있었던 최선의 결과"**라고 생각합니다.
* 🤔 부식의 정확한 원인은 아직 미스테리로 남아 있으며, **라이너스는 제조업체와 함께 추가 조사**를 진행할 계획입니다.
* 👨 라이너스는 청중에게 감사를 표하고 후원자를 홍보하는 한편, **향후 피해 시스템 재구축에 관한 동영상을 제작**할 수 있음을 암시하며 마무리합니다.

June the 14th of this year was probably the worst day of my life so far. The previous evening, I had found out that my sister passed away. I had spent the day dealing with the family drama and grief that comes with an unexpected loss like that. I made my way through one of the hardest W shows that I've ever done, um, just focusing on the routine. And when I came home, there was an unexplained wine that I couldn't really nail down the source of. I made my way downstairs and I found out that the pump that runs the cooling system for my server rack here was running dry. That means one of two things: the reservoir is leaking or the systems are leaking. And I'll let this water mark on the floor answer the question for you. So instead of eating, I began the painstaking process of tearing everything out of the rack as safely as possible. I made my way all the way through both storage and utility servers, my main and my backup, mine and Yvon's office machines, and all three of my kids.

gaming rigs. Until I found this, the culprit: a completely corroded off fitting that dumped gallons of water on everything underneath it. How could this happen? I mean, that's galvanic corrosion plain as the nose on my face, but this is a loop that has nothing but Copper, Brass, plastic. What the is going on here? I've had to sit and wonder from then until now so that I could get someone over here to point a camera at this because I'm sure that you guys want to know the answer as badly as I do. And if I'm going to lose a bunch of server equipment, well, I might as well at least help pay for it with this message from our sponsor. If I had time to untangle cables, would my hair look like this? Why not switch to Magnetic cables from our sponsor, mag tame instead. They pull apart effortlessly, roll up perfectly, and stick to any magnetic surface. No stress, no mess, no worries. We'll have them linked in the video description. Now, I know what you guys are thinking. Ah, it's lius, he's

always doing janky projects, and I'm sure he overlooked something. I mean, galvanic corrosion can't happen by accident. That's science. But listen to this. You want to talk science? How about the scientific method for a control system? I grabbed one of the other ones in the loop and look at those fittings. Those are the same two fittings, and they're immaculate. So, if it was a configuration error in the loop, these should be eaten, and yet they're pristine. Our goal today is twofold. My son obviously wants his gaming rig back up and running, which is why he's helping. But before we do that, we need to know what the heck happened here so that we can ensure that this won't happen again. The first step of disassembling these blocks is popping the stainless steel cover off. It's important to note that this is purely cosmetic since steel is not a compatible metal with the ones that are typically used for water cooling like Copper, Brass, and nickel. Now let's go a layer deeper and

remove the delin top. Okay, not the cleanest. Loop I've ever seen. Why is there so much dust on it? Well, I can tell what some of this is. These look like little plastic filings from working with the tubing that we installed. Oh, there's a little metal shaving. Uh, that could be left over from manufacturing of something. Radiator heat exchanger. There's a surprising amount of this that looks like hair or other organic matter, but there's iodine in the loop. And what kind of contradicts that theory is that this tube over here, which is running water to my system right now, is Crystal Clear. Well, maybe one of the other systems will give us some hints as to what that is. Actually, we don't need to go that far. Around the edges of the reservoir, there is a little bit of something. Not much, but I think I might need to up my iodine dosage and maybe throw a filter in there. Either way, none of that would explain the leak. Let's take apart the other block. Here we go. What the crap? What is this? Ew, why does

it look burned. It kind of does look burned. It's definitely not. It was underwater, but the kind of oxidation that could occur when burning, I guess, could also happen when it's being corroded. But the funny thing is, is that this is where the metal, and you can actually see metallic elements here, this is where the metal was being deposited, but there's no metal for it to deposit onto. Normally in galvanic corrosion, you have a sacrificial anode, and then you have a cathode that the metal deposits onto, but it's depositing onto the delrin or the space above it. You can see that's what was being corroded away, right, which is why the fitting broke off and liquid gushed out into the system. But the deposit was so close, it was right here, the mid plate, that fitting crumbled, I think. Who, okay, well, that's something that happened. Now EK had a theory when I contacted them, and that was that this stainless steel cover was somehow participating in the galvanic corrosion process because

it was bridged to the fluid somehow or something, but I just don't see how it could connect. None of these screw holes externally pass through to the inside of the block, and you can clearly see with their decades of experience designing these things, there's no connection here either. Even if I screw this in all the way, not going to lie boy, I was hoping it would be a little bit more obvious at this point. Can we just fix it and then not care what happens? We got really lucky this time. We only lost the big ups at the bottom, and I lost one of the rows of NVMe backplane slots on one of the servers. The other row fully works, and I don't need the second row. Um, also, your computer is dead. We won't necessarily get that lucky next time. There were pools of water on the motherboards of some of the systems under this one, so we need to figure out what happened, is what I'm trying to say, which means we need to start dissecting some more victims. Actually, wait before

we look at a different system. We should look at a second block within this system to see if there's something unique about this environment. These fuel line hoses are a bit of a nightmare to get off. You can see the reinforcing string that makes even cutting them a bit of a chore. Okay, what do you think we're going to find a lot more corrosion and metal. Oh, crud, I called it 'cause this means your computer's not getting fixed today. Oh, still happy. No, that might do it for EK theory about that top stainless steel thing. Maybe this is a more widespread issue. Now we really need to start cracking open more systems and seeing what's up. One rail came out. Hold on, you got to come straight out. There you go. Oh, my goodness, the plot thickens. The second fitting on this GPU is pristine. What is going on here? Could it be the Worm Drive clamps? They're not touching though, and this, this one hasn't been moved. I unscrewed it by just twisting up the tube. This is exactly as

it was pretty nasty. What this means to me is every one of these systems has to have every fitting popped to check if it's corroding. A couple of the screws going into the top of this GPU block are rusted. This is not a damp environment, so the only moisture they should have access to is from in here. I didn't know which holes they came out of though. Unfortunately, I don't think your computer is going to be working for a while. Hey, thank goodness it's summer and there's lots else to do, right? Yeah, I wouldn't let my dad get away with that, but hey, thanks. What do we have to do to get it working again? It relies on a cooling system that it shares with six other systems. All six systems need to be checked to ensure that they don't have corrosion in them, because if one of them corrodes, it takes down the whole thing. So all the systems need to be taken right down to the disassembly of the bare parts. Okay, so like 2 months, I'm the

kind of dad who believes in honoring my promises, so I am not going to promise anything. Okay, this is shaping up to look like it is going to be an absolutely terrifying amount of work. Like better off starting over amount of work here. Then shouldn't we just start over? Well, I mean it'd be kind of wasteful, don't you think? And this is your gaming rig. This has seen you through many battles. Well, you just going to leave it behind on the field? Yeah, now it's clear there are issues with the loop not caused by anything to do with block design. Uh, there is some organic matter in here. You can really tell now that it's still wet, but I reiterate that would not cause a leak. So then it is ek's Fault. Well, we can't say that definitively. I think what we're going to do is we're going to investigate one or two of the other systems, send them our findings, and then we'll go from there. The worst corroded one in both cases was nearest the

acceleration or impingement plate, but on the GPU, the deposition didn't take place on the plate itself. It took place here before it. You're probably wondering what to do next. What we need is a corrosion check on this, this, this, and this. You're going to start by blowing all the water out of the system. How do I do that? I'm glad you asked. When they aren't coupled, these quick connects stop the flow of water and air, so there's no way for us to blow out the system unless we put a female fitting on them. Now she should just kind of drain. Oh, hey, there we go. But that's slow, and we can accelerate the process using under normal circumstances. I'd be giving you guys a bunch of lectures about air compressors and computers. There are concerns with moisture being blown onto the components, uh, static buildup, but in this case, we're just blowing out tubing, so we don't need to worry about any of that. What you're going to do is you're going to take this, you're going to hold

it tight up against the in one as you can, and all the water is going to blow out the other side when you pull the trigger. [Applause] W now we don't need to worry about water leaking all over our system as we disconnect our hoses realistically. The system is not alive anymore, but there could still be components that are good. Remember that I said that your SSD might be okay. Well, that's because it's over here on the other side from where the leak was, so as long as the water didn't come up that high or as long as there wasn't some kind of malfunction of the motherboard that caused a cascading malfunction to your SSD, you might still have all your games and data and all your saves and all that kind of stuff. Get this hex head and pull the block off. Clean the thermal goop off the bottom of the block while you're handling it so you don't make a mess. Okay, next thing you want to do is get these fittings off. Yeah, you might

need to take off these worm drives first. So you need that Flathead. There's certain things that I really hope are not dead. I mean a motherboard's a relatively simple replacement. I even have a cold spare of these just in case, you know, we experienced a failure. But like these pcie Gen4 extensions and stuff like that H, it'll just probably take a little while to get new ones. Then again, I've made no commitments about when this will be done. So now we're just going to play twisty twist until this comes out. Not the world's most fun game. Twisty twist is very effective. How'd you get to be so sarcastic? Bad parenting, I guess. Yeah, yeah, yeah, yeah, yeah, yeah, yeah. Speaking of bad parenting, I think I'm just going to have to give you a really sharp knife to cut the tubing off. Thank you. Perfect. Okay, so now we just put it back. Well, I don't know, man. Like this is raising more questions than it's answering. I think what we need to do is

have a look at the fittings on the GPU now. So this one's perfect on both. Yeah, maybe this is a system by system thing. Then the fittings are perfect on the GPU on the second system. Remember our first control system as well. Got two more to go though. Let's see what's shaken in those phrase. Interesting. So yours is the bad one. Oh man, I guess this is. It's kind of good news, but it also just deepens the mystery. And there you have it. Looking at the last two systems, the ones above the leak flawless, flawless, flawless. Only one system experienced corrosion out of the five, and it was on two different blocks. For real chemistry majors, get out of your armchairs. Or rather, get in your armchairs. What happened here? So you're probably wondering, well, what now then? Well, now I'm going to test the two systems that were under number three and see if they still work, which means maybe. Ooh, caps up white light good. Hey desktop, better as unbelievable as it might seem. The only system

casualty is my son's gaming rig. Almost everything else survived. Is it possible that this system still functions? I kind of doubt it. It gushed water over the motherboard, like right over the VRMs. Let everything else survive. What do you think, Andrew? Is she just going to like post? I'm not. I think this one's [Music] dead now. Modern Electronics got a lot of protections, you know, short circuit, over current, over voltage, but dump gallons of flipping water over it. Protection. Obviously, I can't deploy it the way it is. It's got its blocks and fittings all corroded to heck and back. So there's definitely going to be a follow-up where I hear from some of you folks. I go back to the manufacturer. We figure out exactly what's going on. We rebuild this mess. But I'd say this is about the best outcome I could have possibly hoped for. Just like I couldn't hope for a better sponsor than our sponsor next to go. Have you ever hopped on a meeting and thought your screen was

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Is this my Fault?

Linus Tech Tips is a passionate team of "professionally curious" experts in consumer technology and video production who aim to educate and entertain.


Linus Tech Tips

예상치 못한 손실과 기술적 재난의 하루

이 발표자는 여동생을 갑자기 잃은 후 서버 랙에서 중대한 기술적 문제를 발견하여 정신없이 힘든 조사 및 수리 과정을 거쳤습니다.

갈바닉 부식으로 인해 피팅이 장비에 물을 쏟는 문제가 발생하자 의문을 제기하고 향후 발생을 방지하기 위한 솔루션의 필요성을 느끼게 됩니다.

화자는 재난의 반복을 피하고 시스템을 다시 가동하고 싶다는 열망에 따라 무슨 일이 일어났는지 이해하려는 결의를 다지고 있습니다.

누수되는 수냉 시스템 문제 해결

시스템에 먼지, 플라스틱 파일링, 금속 부스러기 및 유기물이 쌓여 누출의 원인이 될 수 있습니다.

블록에 갈바닉 부식의 흔적이 보이며 금속이 음극이 아닌 델린에 침착되어 있습니다.

스테인리스 스틸 커버와 관련된 부식 원인에 대해서는 향후 누출 및 손상을 방지하기 위해 추가 조사가 필요합니다.

컴퓨터 냉각 시스템의 부식 문제

컴퓨터 냉각 시스템에서 광범위한 부식을 발견하고 시스템 고장으로 이어집니다.

냉각 시스템을 공유하는 6개의 시스템을 모두 점검하고 분해해야 하는데, 이 작업이 만만치 않다는 것을 깨닫습니다.

처음부터 다시 시작할 가능성도 고려하지만 현재 시스템의 감성적 가치도 고려합니다.

GPU 시스템의 물 침전 문제 해결

GPU 시스템에 물이 침착되면 여러 구성 요소에 대한 부식 점검이 필요합니다.

암 피팅을 사용하여 시스템에서 물을 빼내면 손상 없이 프로세스를 가속화하는 데 도움이 될 수 있습니다.

SSD와 같이 회수할 수 있는 구성 요소의 가능성을 고려하고 문제 해결 과정에서 구성 요소에서 열 페이스트를 조심스럽게 청소하는 것이 중요합니다.

플랫헤드를 사용하여 웜 드라이브를 제거하는 것은 교체 과정에서 매우 중요합니다.

스피커는 잠재적인 고장에 대비한 예비 부품을 보유하고 있으며 완료 일정에 대해 확신할 수 없습니다.

한 시스템에서 GPU 피팅에 결함이 발견되어 부식이 발생했지만 다른 시스템에는 결함이 없어 추가 테스트가 필요합니다.

침수된 게임 장비가 여전히 작동할 가능성

게임 장비는 마더보드에 직접 침수 피해를 입었지만 다른 구성 요소는 살아남았습니다.

제작자는 시스템이 여전히 작동할지 의심하며 시스템을 재건할 계획입니다.

동영상은 웹캠에 대한 후원 메시지와 함께 다른 동영상을 시청하라는 초대로 끝납니다.