RTX 4090 - The biggest problem of modern cards that the manufacturer refuses to repair
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- Опубликовано: 8 фев 2025
- 👉Need a repair? krisfix.de/en/...
👉KrisFix Shop: www.gpufix.de
👉Question about repair: service@krisfix.de
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Tools and parts used in this video:
👉Thermal Pads of all sizes:
www.gpufix.de/...
👉BGA Reballing Gel No Clean IF8300:
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👉FluxPlus 6-412-A No-Clean (NC):
www.gpufix.de/...
👉High Precision Tweezers - AAA-14:
www.gpufix.de/...
👉Mechanic R300 Desoldering Wick:
www.gpufix.de/...
👉MECHANIC UV Solder Mask:
www.gpufix.de/...
👉Wylie Solder Lugs :
www.gpufix.de/...
👉Dental Drill Bur Adapter 2,35mm zu 1,6mm:
www.gpufix.de/...
👉Polishing Silicon Bit:
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#gpu #repair #krisfixgermany
I want to remind everyone who has such a heavy graphics card and those who are planning to buy/build a new computer to think about proper installation. Standard methods are no longer practical. Vertical mounting will save you a lot of headaches and money.
I hope this type of video will reduce the number of devices being thrown away.
Liking the video and subscribing to the channel is much appreciated.
Thanks
Super Reparatur! Sind das Schäden die auf das Gewicht des Kühlers zurück zu führen sind? In welchem Preislichen Rahmen bewegt sich eine solch Komplexe Reparatur?
Sad part is Silverstone already invented the solution to that many years ago, which is their Raven cases, where the motherboard is mounted so the rear I/O faces up. That way, the weight of the card is supported by its backplate instead of the PCIe slot.
You said the problem occured during the transport. How would vertical mounting help that problem?
If you are transporting a computer & gpu to a new home as I did with my son please pack the gpu in large amounts of bubble wrap and carry it in your carry-on bags to prevent jostling and damage! If you ever watch the baggage handlers at the airport loading bags they throw stuff on the ground all the time!
Great job Kris, very complex and time consuming repair. Think it is better to remove the gpu entirely when travelling as it depends on the case orientation when travelling.
Insane level of precision. We often forget how tiny those pads and traces really are.
There are tricks you can use to accurately move your hand in 10th of a millimetre steps, without any strain on muscles. Just rest your palm on a surface and allow the weight of the hand to naturally move one direction or another with the slightest of muscle movements. In the same way you use a pencil to do fine art, or a mouse to make single pixel movements. The surface acts like a gearing mechanism and also eliminates body shake from your heart pumping. Incidentally, this is also how snipers eliminate these types of movements on long range shots. You can get 5 bullets through the 1st bullet hole at a range of 30 meters, without any optics or sight, even if you have to manually load a bullet into the chamber each time. You just need good eyesight, or with PCB work, a good microscope.
@@aaronmicalowe That is amazing.
well it's a german repair man, of course! sorry for the stereotype.
Accuracy. Precision is different.
@@BenState although it's ALSO precise
As someone who knows a lot about electronics, it's really neat to see you replace leads and pads. That's some serious repair skill.
Start with knowing Ohms law in and out, then using a multimeter, build some basic projects. I did Heath Kits back in the day, then build my own PCB, then a radio and advanced. I have owned a small IT company since 1996. Retiring, but made good loot for sure as I bought, sold and repaired. @@s7r49
It's impossible without expensive repair tools, like he uses. Too many CPU pin pads to uniformly heat at the correct temperature to allow release, by hand.
I am amazed at this repair. I cannot fathom the amount of precision and care you had to put in to fix all of those traces. You are a legend man. Incredible work
Yeah like wtf!
@dr3v1l1993 I'm not sure it's even worth there. I'd like to know how much this kind of repair costs, ending up, in the end, with a repaired object. No wonder they end up in a landfill...
@@webwizard65 Yeah he's doing God's work but I'm afraid most people would just bin the defective card. One reason "right to repair", though a great idea, is not practical for most people. When my partner spilled coffee on her fancy laptop, I had it cleaned, it always had little issues afterwards, and she ended up binning it for the latest, greatest, trendy model a few years later.
@raylopez99 @raylopez99 fyi "right to repair" isnt about big damaging things like liquid spills or these cards w a lot of circuitry and tiny parts. Its about simple making common repairs like replacing batts or displays simpler and more affordable. So it does make sense for the avg consumer
@@zerocal76 Hypothetically, could these cards be reused with an external riser using a firmware mod? Vaguely recall someone doing this with a card where line x1 had failed.
You da man! The GPU "Whisperer". Cheers
I genuinely thank you for saving tech from ending up in landfills, we try to do our part by buying old electronics and storing them at home for later repair but what you're capable of is amazing
I have a bunch of old stuff like that too, not that difficult, hate to see such a big piece of work get thrown out but mainly I never get around to fixing them.
by do your part what do you mean part of what ?
@@vasili1207 saving electronics from being thrown into landfills for no reason, almost nothing is actually recycled in the US so my family likes to buy what a lot of people consider to be junk to store or fix at a later time. that's all.
I can imagine the load of junk you're living in, as old electronics even needing repair are obsolete and who has time to repair all that junk for which replacement parts are difficult to find.
@@Beardqtleast pcbs and chips arent toxic waste besides traces of plastic for brackets etc. After alll it's sand and metal
I think this is the craziest repair I've ever seen! Attaching dozens of new BGA pads to a board and solding them to their traces, crazy!
And here I thought I was a badass for fixing one broken pad underneath a GPU before. This repair right here would have humbled me very quickly. Respect.
I felt like a badass fixing 4 solder joints on my iDrive lol.
In fairness 90% of people probably aren't fixing pads on GPUs, so I think that's pretty cool
No, that's actually really badass.
Noobs.
Ditto. I bent, then broke, a pin off a CPU once and managed to solder it back and it worked, didn't even break when I removed it a couple years of service later, still working! (The system was just old). But this? This is God-tier precision repair. Whatever he gets paid to fix these cards is definitely not enough. The card alone, brand new, wouldn't be worth enough for the time and effort here! XD
I love discovering videos that literally blow my mind. I never knew that there were actually people out there who are able to repair ripped pads from under the microchips!
You can it's just such a pain to do & takes a lot of your time.
Yes, it's really quite remarkable what a good technician can do with board level repairs and mods. For example, it's even possible to drill down through layers of a PCB and solder a wire on one of the inner layers. All very highly skilled, delicate work, but very doable.
It doesn't even stop at the PCB. It's even possible to rewire ICs! It's virtually never done to repair an IC (rarely worth it and usually not practical when it is), but it's frequently done during IC development.
@@ccoder4953 yep, his one video he literally goes into the layers of the PCB and reconnects the copper connections, Kris is a PCB surgeon
YPerplexer
You need service ? What card ?
yeah, we have seen many insider ricks, we did try at home too
some did work ! Over too repair boards too.
I always got over repaired cards back, follow the traces ..
I don''t think you understand what "literally" means.
This is incredible. The amount of precision that goes into something like this is jaw-dropping. Well done!
im quite impressed by the patience you bring up to sit there and fix the broken pads.
not a lot of people i know could focus on such work for long.
Repairing those traces is such a nightmare! It is already bad with much less complex PCBs, so totally crazy in this particular one. You did an awesome job and I also learned a couple of tricks from you watching this!
As my dad used to say "replacing horseshoes on a flea"
@@TestTest12332I didn't know fleas wear horseshoes. Where do they get the tiny horses that give up their shoes?
Massive job, must be expensive. You guys are the best of your kind on RUclips. No one goes so far to repair those things..
maybe Tony from Northwestrepair
I mean, the price of 4090s these days are hella expensive and depending where you live, it might cost you around $2000+. Even if it's a $500 repair, atleast you're not buying another 4090 for a good long while.
@@formbi I would like to see to longevity of his jerry rig repairs
@@formbi Kris is more specialized in GPUs, Tony is more allrounder from what i saw..
@@IT10T probably same as from Kris. The difference is the success rate more than longevity. Longevity can be affected by bad soldering for instance, Tony got pretty good with that.
Seeing this repair and your recent 6900XT save by drilling the pcb are simply inspiring - like fine art. Always a pleasure watching and learning, Kris. You are a master.
Holy ****, this is the first time is see this level of a repair. This is phenomenal
Thanks
I like repairing stuff, and soldering - but that's God-Tier work right there! I'm surprised you even attempted it! Most people would say its un-repairable due to the complexity. Incredible work, and incredible patience you must have!
In my shop I would have pitched it-too much work unless you do GPU's all the time.
This would have 100% been an I'm sorry its junk call on me. You're crazy for even trying, and even crazier for actually getting it to work. There is no way i could ever warranty a repair like this though.
@@GetFitEatRight That is the rub, same when a customer wants me to "repair" their water/liquid spilled device. Can I turn back the clock? Sure I can likely get it working, but the wear on the components cannot be undone. I really hate doing repairs anymore as anything after it is your fault so I have raised my prices to decline most repairs at this point. I do not need money, I simply can't stand doing the work anymore. Retiring shortly.....
The pad repair is amazing, up there with the PCB layer fixes you had a few months ago. Incredible precision!
Thanks 🙏
I had no idea it was even possible to replace broken pads/traces like this. The closest I've seen is the sort of tiny wires you see in say, PS2 modding, which I figured to be impractical for these cases. On THAT I was correct.
But seeing this actually be done, let alone function? Been a while since something made my jaw drop but the precision, skill and knowledge presented in this video did just that.
Bravo.
This is ultra level pro. We need more technicians like you. Well done Kris
Bro is german what did you expect
That is not pro level. Pro level doesn't get close to this.
@@Ringo_ChanSan Means nothing.
@@weasle2904 it's just a joke on the german stereotype
Hats off to you brother
you are keeping it real and repairing stuff that pretty much no one would touch
i applaud you good sir keep doing what you do we need people like you in this world
I dind't think such a fix was possible by hand, astonishing. Great job and I'm happy it worked without further fixing the ram chips
For real! Mad amazing skills in this vid ^^
My heart dropped when I see those ripped pads but then amazed how you managed to fix them all. Cheers!
Impressive repair, it's pretty hard core to successfully replace traces and pads under the GPU.
I'm always happy when technicians manage to repair electronics that otherwise would be thrown out. Amazing job and subscribed.
Incredible! The amount of work and skill that went into that repair is insane. Congrats on making it work again.
Thank you very much!
God damn dude, you have the patience of a saint. Doing micro-trace repair is not easy. I give you props.
MAD RESPECT, if I had a chance to do such a job I would at least attempt to do it, but I imagine it takes being comfortable with a lot of gear and loads of patience. Thanks for showing us.
So nice of you to share not only the cause of malfunction but also the repair process.
I have never thought of miling new traces from bare PCB.
Holy cow. This may be your best video I've seen yet. Absolutely outstanding workmanship. Bravo.
Glad you liked it!
Interesting to see the process. Lots of specialized tools, know-how and skill required to do a repair like this. Thanks for showing it 👍
Thank you Kris for your tremendous amount of work and sending out your videos. Sorry you were ill, it makes life more difficult than it needs to be.
This is some insane level of skill, the ability to do those small traces like that. Just amazing. Good work man!
It's really hard. I have dome some before and it is a PITA, but under a GPU so small is a whole different animal for sure. That is really small work to do and he makes it look easy.
Fine workmanship, I've been doing electronics for over 30 years and I wouldn't attempt to repair those pads, very nice.
Thanks for watching!
Holy crap that's amazing!!! The amount of precision you have to have to fix this is insane!
If another life/alternative universe, the channel host would be a renowned brain surgeon. This was an amazing feat, coupled with even more patience (and skill).
lol dude fuck brains GPUs are much more complicated than that
Omg really amazing to see you can even replace the tiny solderpads! Really nice and professional repair. Wish all the electronics repair shops worked like that, sadly the opposite is true lol
You must be a very patient man! I would find doing that amount of delicate work, way to frustrating, also I don't think I have steady enough hands! 👍
Pretty impressive to see how calm and precise you are with your tools and that on this microscopic level. Good work!
Man your work is on another level, I never thought some of the things you do were possible "manually"
This has to be the most precision repair I have ever seen. I have had boards only half this bad and threw them away because once a pad is ripped under a BGA I figured the board was junk.
If i hadn't seen this with my own eyes i wouldn't have believed it was possible, you deserve every success for your patience and talent
My understanding of soldering and electricity is practically zero, but i love your videos. I love your precision and your dedication to it.
Oh my.. you are a repair artist man! The level of precision and also knowledge of what you are doing. The fact that you are even capable of doing this type of repair at unreal difficulty blows my mind. I am truly amazed by your skill level. Absolute professional. Fantastic!
Wow! This is really impressive! Thank you for dedicating so much of your time to show us so much detail --including editing and posting the video! :)
Thanks for the great repair video and I hope you are in good health!👍
Thanks 👍
Great setup, great video, great channel. The techniques you used to expose and reconstruct those broken traces are among the most advanced I've ever seen on RUclips. Excellent work!
You have some mad skills! I could never hold that steady.
When that beat drops 08:47🔥🔥🔥 anyone else was thumpin to the beat while cleaning. Thorough thorough video repair my man 🫡 dude you should’ve been a neurosurgeon with that level of precision and steady hands. Dr Strange would be jelly 😂
What an amazing craftsmanship! I really can't believe that you are able to perform such work economically efficient as the repair doesn't make any sense if the cost exceeds the one of a new graphics card. I always thought that a damage like this is not really repairable as it simply takes way too much time to detect and repair the damage. Hats off to you as you successfully managed to perform this insane repair!
Amazed of the mastery of your work. That is talent, knowledge, precision and patience all at once. Outstanding!
Wow, didn't thought that would be repairable. I'm already struggling to solder wires to 0402 parts. Increadible job.
Professional and Data Center GPU/Accelerator cards don't have that issue unless they are mishandle to the point that damaged GPU would be your least issue because they have industry standard securing mechanisms (yes, multiple) for PCIe cards that have been there for decades to ensure safe shipment and operations.
The process of repairing the pads is always amazing sight to behold, this is incredible work!
Im literally having this display on a damaged then fixed rtx a2000. A whole condensator was missing for some reason.
Okay this one was astoundingly good to watch
Seeing the scale of that trace repair is just nuts
you are the genius of the repair
You should have become a surgeon! The amount of patience and control you must put to solder such tiny pieces is god tier
I recently saw in a GN or Buildzoid video that Sapphire has been reinforcing the memory modules in the locations which are more prone to bending with some special type of glue. It's always nice to see when engineers add in extra features like that. It shows a sense of care and pride in their work. They're completely unnecessary if the card is well cared for, but it makes them somewhat more resilient to damage, though who knows how much of a difference it really makes.
Why not use screws to a thick alloy plate? GPU cards wont bend und er any weight if the backplate would be screw on by multiple points...
It is just greed from the manufacturers nothing more
The truth they don't tell you is lots of components on GPU's are coming "broken" from the factory, you could have ball points on your GPU detached right now, except it's still able to make a connection because they're still making contact, so you don't notice. Once you look at it, this definitely has to be the reality of most GPU's. And that's probably how this damage was soo extensive to begin with. You get some balls making contact, but only being held together by the force of the other ball points, and it becomes much easer to end up with others ripped out too, until you end up with a card like that. So you might only have like 80% of the ball points actually being load bearing in any given GPU, while the rest are just connected by contact pressure from the other ball points.
its not about caring for the card properly, just thermal differential of a few degrees over the entire PCB will result in it warping(curving one way or the other) and when screwed into something(such as the heatsink/fans) rippling instead of warping because its constrained by its attachment points, putting significant stress over the PCB...
Where something as big as the GPU is soldered acts as a reinforced spot where the solder joints from the GPU to the PCB are actually STOPPING the rippling/warping/thermal expansion from happening, and are being subjected to large shear forces.
This expansion is not just from the PCB, the GPU itself getting hot expands, if the PCB does not heat at the same speed its the GPU putting stress on the PCB.
Think of bridges and buildings, they have expansion slots to deal with thermal expansion.
GPU get so hot, and the thermal differential is so large over the PCB they need to start being designing with thermal expansion in mind.
The glue make repair job a nightmare though.
Another factor is that the thinner a board is the better it performs electrically due to the increased capacitance from the internal power planes. Result is a more flexible board which can crack more easily.
I just love your videos. Watching your work feels like watching a carpenter build a house. So much precision and expertise.
It's so impressive to see the depth of knowledge and skill that is required to repair these boards.
Amazing attention to detail and hand dexterity, you could have been a brain surgeon in another lifetime. Very educational and amusing! Kudos and more power!
What a joy to watch. This is all still relatively new to me. I had no idea this level of repair was even possible 👍
Glad you like it
Honestly amazing you can do this level of repair for less than the cost of a new one, some highly precise and detailed work your doing there.
I would assume that level of repair is crazy expensive. Amazing job!!
Awesome work man, pretty impressive to see the repair of theses small traces !
You good sir are a master surgeon when it come to graphic cards, such intricate precision required to do this sort of thing is godlike. Best component level repair guy I've ever seen on youtube . Big thumbs up 👍👍
Appreciated
Incredible work which takes an incredible amount of skill!! I would only like to have seen the card tested after reassembly.
A nightmare. The amount of work is insane. Crazy to see, that it is even possible. Thanks for sharing!
wow man, that is soooo impressive! :O actually very captivating to watch, but it was only when you zoomed back out i realized just how small these pads actually are!!! Good to see someone has the skill and patience to actually do somthing like this these days!
what would we have done without you Kris, awesome work.
You look very skilled, I don't think I would be able to do such fine work.
Wouldn't it be easier to get the PCBs remade without the expensive parts?
Amazing microsoldering job, and great music 8:25
man , he made it look so easy , thats robotic arm percision right there .mad respect
Just looked up your prices because I'm amazed by your work, wowza! What a deal imo! obviously can't be too high otherwise not worth it to repair but still, pretty stunning work you accomplish. Thanks for sharing.
Broooo. Your level of skill and patience with this kind of repair is just uncanny! It's so impressive!
Most of the 3000 series was scrapped. Over 60%. Had the wonderful job of pre sorting (smashing up with a forklift) several containers of "excess" that they basically want smashed up so they can reclaim anything that can be efficiently shipped, unlike boxed graphics cards.
holy shit
@@TheSaival This is why AMD waited so long to launch the 7600, 7700xt and 7800 along with deep discounts on the 6000 series, the market fell out during the middle of peak production in the crypto boom. Nvidia would rather send cards to a landfill than have reviewers compare the value of a 3080 to a 4070 which is exactly the problem AMD has had all generation. Punished for doing a good thing.
Excellent job! I really appreciate technicians that actually try to repair the product instead of going the "its not economical" route. Shows a different level of passion and dedication. Great job.
But it really cannot be economical. The amount of work he did here -- what does he charge for it? It should be 50% of the price of the card. Otherwise, he might be doing it for the fame and perhaps youtube ad income.
@@tvacc6174he probably did charge 50% of the value of the card, this would have been half a day's work.
Regardless, I don't think everything should be about money, you should do things because you enjoy it. I'm aware this is a business, bit let's be honest you can do these kind of repairs and still live good. 2 of these a day and you're making what a lot off people make monthly in a day.
Wow, I've never seen anything like this done before! Very impressive! I look forwards to more content!!
Incredible. I’ve been building and repairing boards for decades and this is so impressive! True craftsmanship.
I don't know how much you charge, but your work is phenomenal. The kind of damage that would result in this kind of repair wouldn't necessarily be on the shoulders of the card manufacturer. The scariest part of a prebuilt is shipping. I think the onus falls on the people who prepare the system for shipping.
Doesn't help that those actually doing the shipping and handling seem to have gained a reputation for not treating the packages properly.
Actually, no. The distribution of accelerations and shocks on shipping containers is well known. The onus falls on the card designers to not allow into production products that will surely not survive completely normal shipping conditions.
In other words, the design of the 4090 with it's inadequate cooling system is the problem.
@@JurekOK Thankyou for sharing that info. ))
@@JurekOK its not just 4090... The whole PCIE slot standard is ridiculously unfriendly to shipping when paired with modern graphics cards. Maybe if you were to install a gpu like a cpu it would be safer.
@@JurekOK I do agree with you to an extent. If you install a 4090 in the motherboard slot, then the card has to be supported on the end to avoid damage. I have built numerous systems and shipped them across the United States. I don't ship the GPU separately for the customer to install. I support all sides of any component that is susceptible to rough handling. So far I've had good results shipping pre-built systems with gratitude from the customer. I also double box the tower in a larger padded box which raises the cost of shipping but it's worth it.
Godlike. I would not have thought this is repairable. Clever use of UV solder mask to fix the pads in place.
Magic. One word I thought I'd never use for a repairman. You are a magician good sir, with the hands of a surgeon. Stellar work.
Every other repaircenter would give up, i believe. You are the MASTER of GPU repairs.
Watching the close-up reattachment of all those traces it's easy to lose sense of scale and when you showed the overview of the card afterwards and all that work was just in a tiny corner of the footprint... My mind was blown! I feel like you could probably teach the average microneurosurgeon a trick or two 😂
I guess it's a sign of how crazy the prices are for these cards that it's worth putting this amount of effort (time * skill when time = long and skill = extreme) into the repair.
Even the 3080 and 3070Ti cards are still going for 20% or more above their original RRP here, 3 years after they came out and after a year of the 4000s being available!)
insane level of skill. super steady hands, wow
This is great, I love that you were able to save another GPU from the landfill. You are one of the only people I've seen that has that level of patience for something like this. You have a very bright feature ahead and I wish you successes.
I've seen a lot of GPU repair vids, but never one with this level of skill repairing traces on a PCB. I'm amazed this is even possible to do by hand. Incredible work!
Memory chips were probably saved by themal pads which are more flexible than the direct contact between massive copper block and the GPU chip!
Nice work, super proffessional :)
the mem chips are also a lot smaller, I'm sure that made a big difference as well.
No, thermal pads play no role here, it's purely the axial PCB twist that does it. What saved them is their size, they were able to flex along with the PCB enough.
@@FrozenHaxor I'm sure they do. Flexing less due to their size is also a big, in fact the main factor for sure.
Absolutely fantastic, I didn't know that it was even possible to solder like this by hand. Amazing skills and know how, just wow! Thank you for sharing this piece of art
The weight is surely a problem, but also that they insist on using a BGA package. I really wish they would use a socket solution for desktop GPUs.
I´ve done some work on old Ataris, Amigas, and Matell consoles. Often the chips are just inserted into a socket without solder, you can literally just pull out a chip with a screwdriver. Corrosion/dirt can lead to bad connections so cleaning the ends/socket can help out on those systems.
I can't see them making a change like this sadly. First of all, there's just no benefit Nvidia, and second, there are several downsides.
Failures like this have several places for the blame to be placed before Nvidia would ever take it - If the fault is recognised then the courier and end user will blame each other, and if not, maybe the board partner takes the hit, unless they inspect it, in which case it's back to the end user or courier again. Nvidia doesn't care either way.
Then there's the fact that using a socket would add some significant cost increase for the board partners, and also probably some for Nvidia in the chips themselves since they'd probably need to be made with a more robust package with a different dimensional finish suitable for clamping in the socket.
A socket would probably result in lower max performance as well, biggest issue probably being trace impedance discontinuity which you can mitigate, but that means more expensive sockets.
Also given their extreme control freakery I have a feeling Nvidia don't want it to be easy to swap GPUs between cards.
More expensive, more noise, and that has the problem of people replacing the chip instead of throwing away the card.
If I hadn't seen it I wouldn't have believed it was possible! Amazing work!
As someone who did fine work by hand making reeds for woodwind instruments, I can say that the level of precision you have is insane! I thought I was good with tools and very precise handiwork, but you are on another plane completely! Good job.
Wow, thank you!
Wow...your camera has to be one of the best I have ever seen. I can zoom directly onto the board and almost make-out everything. That's simply incredible.
Wow, you actually fix and not just replace. Amazing repair! Massive kudos to you.
This repair is truly insane, hats off to you!
Very impressed that you are able to repair these traces and get it working normally again, memory traces can be very finnicky due to the tight signal integrity requirements at the high frequencies they run at. Even small imperfections can stop the memory transfers from being fully stable.
True
Just wow, your soldering skills are beyond impressive. Unbelivable that you could repair the card 😮
Wow, thanks
You are the best! Gosh, the patience you have at repairing these GPUs...
You've got a lot of patience, with that many broken pads I would have expected that the cost of repair exceeded the cost of a similar used GPU by a lot, and sold the die and ram chips for parts.
Am new to this channel. First video I've seen. Absolutely amazing work here, being done on an incredible level of scale. Well done!
good job bro. I would trust you to fix my neuralink chip.
Just found your channel, and i must say that i'm impressed with the quality of this video. Great work, and very interesting!