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so a short while ago a gentleman by the name of Ls Rossman watched my video

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where I baked a video card and made a video response outlining what an idiot I

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was he said a lot of bad words and a lot of mean things very often the issue that

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somebody's having when they have no video or something is dead is not an

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issue that you're going to fix by taking a heat gun to it by putting it into an

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oven by burning it so I showed up here

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in New York City at his shop to either

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get an apology out of him or for him to

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restate that in fact he is right and show me his super fancy soldering rework

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multiple thousands of dollar setup that

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is actually how you repair graphics cards or other pcbs properly let's find

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out which one of those things it's going to be

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okay so uh employees only means nothing

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to me so I guess we'll just uh go ahead and head

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inside look at all this stuff it's like Linus's Paradise broken

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Max knock knock come

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on so uh here we are the way I see it

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there's uh there's a couple of uh there's a couple of options here you can

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either apologize and say I was right and you were wrong or there's the much more

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likely scenario where you show us the super cool piece of Machinery that you

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use to properly repair all of this stuff

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uh so this is Louis say hi to the lineus tech tips folks I'm sorry for your right

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hand too oh yeah no no that's no problem

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so guys this right here is where the

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magic happens one does not repair pcbs in an oven one uses one of these that is

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to say if one can afford it how much does one of these cost about $7,300

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about 73 $100 and LS here is going to

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walk us through the ins and outs of how this bad boy Works including you said

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you obtained a donor board do I actually get to operate it oh yeah you're the one

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who's going to be putting this on that's the whole point of having you come here was to reduce my workload fantastic

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let's do it okay so I think we all saw this coming um he's not apologizing and

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he is definitely showing me how to do it the real way so this right here is a PCH

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that was sourced from somewhere cuz you can't actually buy this stuff directly

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from the manufacturer that's one of your frustrations right incredible so maybe

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it works maybe it doesn't and then behind me we've got a PCB from a main

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board that was literally thrown and had

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its PCH pop off so without knowing if

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that works and without knowing if this works we are going to resolder this BGA

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chip onto that PCB I'm going to do it

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and it is not going to involve an oven and it is hopefully going to going to work but if it doesn't then that'll be

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pretty fun yeah it'll be fun either way

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okay so Step One is we want to tighten up these little retainers that use the

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mounting screw points and without uh ruining it too hard that use the

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mounting screw points on the PCB to hold it in place as securely as we as we can

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next we pull out this Fancy Pants camera

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so we get a live feed right here of the solder points on the main board next

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step we turn on the manual vacuum right here we take our PCH we Orient it

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correctly which I mean is there some guess work involved there Google image

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search and try to find the GIF that's above 50x 50 pixels like I did 5 minutes

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before you came here perfect so we put this sucker on the little vacuum right

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there hoping that it doesn't come off there we go so we've got a ring of LEDs

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on the top we've got a ring of LEDs on the bottom that makes sure we've got

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great aluminum from all angles both down here and up here and then what we've got

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on this display are two superimposed images so the Brown version is the one

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below and the Blue version is the one above and the idea is that we use our

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horizontal and vertical adjustment knobs here as well as our angle adjustment

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knob right here to try to align all the

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blue dots with all the brown smudges below

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them uhhuh so as soon as I align it

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there it stops Al lining up there feel free to step in and correct

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what I'm doing at any point in time let's see you can give yourself more

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light so you can see a little bit hey there we go you can zoom in and

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out you got a Joys how far in can we go

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I honestly can't tell but you have no way of checking if it's right until you

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just yeah you don't know if it's right until you put it on I'm just looking at one corner at a time so I see that one's

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the line yeah and the other this one looks okay this is a pain in the ass

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this part really is just a pain in the ass so is this pretty aligned that's

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pretty aligned I would say okay just get yourself a thin layer of flux on there

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gloves and a for the next step we will need Z gloves so now we put uh just a

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line of flux just right down the middle yeah so with the flux in place we use

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this clean room wipe as you can see we are in a completely professional clean

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room environment here so now we've got to check and see if our chip moved out

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of alignment from messing around with it this thing messes with your eye after a

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while man let me tell you are we back on

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I think that's actually good okay I would say this is good okay so next we

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move our light out of the way and we actually lower the

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chip whoa that goes really F oh uh it's

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going to stop oh jeez okay see see right now it's touching the board once it's

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touching the board then you turn the manual vacuum off and then you go back

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up okay so now you can move the camera around and try to get it to focus so

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you're you're almost in Focus okay there you go so now we can can see the balls I

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can't I can't make heads or tails of this image though you got to be kidding

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me here okay the point of this is just

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being able to see when the solder melts so this allows us to see under it enough

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to know when we should apply heat and when we should stop applying heat to

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solder the connections okay so Hit Me With Your

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Best Shot you hit start and you hope that nothing blows up seriously pretty

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much so at this stage we're actually ready to use the information heating

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elements all around to heat the general area and then the two heating elements

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on the top and bottom to solder the chip

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to the PCB but it's not as simple as

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just 200° C in a oven which I noticed

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they have an oven this is high quality right here yeah I I noticed you you do

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have computer parts in your oven was that just to make fun of me when I got

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here exactly um what you do is if you want to clean them off after you're done

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Ultras sonicing it you put it in here to get rid of the moisture before you do

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anything like this you also have to put them in an oven at just around the

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boiling temperature of water just to get rid of any of the moisture that built up

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in the chips but also you get things like popcorn and there I thought I was

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getting my apology after all all right so what we do here is we have these

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profiles and it comes with some pre-programmed but they're not very good

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so you kind of have to trial and error it or use your experience or share share

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online to figure out what exactly the temperatures are for the period of time

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and the ramp up and ramp down for each of those those three heating elements

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and then once you've got a profile you press start and hope nothing catches on

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fire and hope that the solder

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melts so once they melt if the profile is set to run a little long we can

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manually stop it and then start a manual cooling cycle in order to cool

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everything back down to a reasonable operating temperature wow it's really hard to tell

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so is it is it is it is it melted stop

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so we're stopping it now we're deciding it's melted even though it's really hard to tell okay manual Cooling and now you

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get to watch the balls dry okay it's important to dry off your

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balls when you're done any kind of uh repair on

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them so now that the cooling cycle is done we lift this bad boy up is that all

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it lifts up oh there it goes then Mr

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shark grabs a PCB and whoop whoop come on and put it uh that was it we're not

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going to let it cool down some more I want to take a look at it first this is

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the part of the class where the teacher is like you know oh this part's kind of

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good but this is but your attendance is excellent the

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suspense you want to look on that one hm

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you want to look and see what it looks like sure yeah let's do it all right so

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let's have a quick look here so what we're trying to see is whether the balls

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got soldered to the pads uh your guess is much better than mine

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at this point in time let's see if it works so we're just going to fire it up

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and YOLO yeah so here we go Moment of Truth we're going to find out if a fan

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turns yeah come on baby I Believe In You

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H oh we got a flash of light

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and we've got 5 volt so it's powered got

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3.3 volt on another test patch yep no good oh now you have this

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my my bad luck rubbed off on me

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we didn't fix it but um test subject 17A

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contributed to the betterment of our scientific knowledge in some way that

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who am I kidding we didn't learn anything today it but uh thank you guys

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very much for tuning into this episode

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of how according to Lewis Rossman one

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would actually fix something that had

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been if it had been damaged

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by you know something like micro fractures in the solder joints or

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whatever the case may be because remember whether it's a GPU like I very

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temporarily resurrected in the oven because that won't last very long

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whether it's a GPU or whether it's something else there's a hundred things

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that could be wrong with it other than that and you actually have to know

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what's wrong with it before you can attempt any kind of repair so while I

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actually stand by the oven method as a way to put off by buying a new video

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card while you save up for another few weeks if you are completely out of

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warranty and you don't happen to have a $7,500 rework

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station it is not the real way to actually fix anything and I'm glad that

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I got to at least try to do it properly so uh thank you very much for going

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through this process with us and uh being a good sport about the whole thing

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and thanks to you guys for watching whoa I transported back to our

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that's a thing so check out the offer and learn more about video blocks at the

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link in the video description remember guys if you dislike

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this video go ahead and hit the dislike button but if you liked it hit like

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leave a comment saying hi to LS you could do that too you can also check out

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his channel he's got a lot of videos that are uh basically tutorials about

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how to repair your stuff uh rants about Apple and the way that they lock out

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small repair shops from being able to repair their products whether it's

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refusing to put alignment guides on their PC whether it's refusing to

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provide uh pin outs for the chips whether it's refusing to tell you what

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exactly some stupid unlabeled thing is um or whether it's just their business

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practice in general he's got rants about me so if you're into that kind of thing

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he's got at least one really good rant about me and what an idiot I am so uh

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check that out and also don't forget to subscribe uh don't forget that if you

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like our videos you can hit the like button on it you can become a

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contributor you buy a cool shirt like this one you can use Amazon uh with our

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affiliate code so we get a small Kickback whenever you buy stuff or you can even give us a directly monthly

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contribution through our community Forum now that you're done doing all that

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stuff you're wondering hm what should I watch next maybe check out the video

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that started this whole controversy where I baked a video card and uh did

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manage to resurrect it however temporarily it might have been and made

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this gentleman mad in the process so mad that I had to come all the way here to

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New York to make him feel better hopefully that's not how you feel better