Expensive Network Card Repair - Mellanox CX14106a-hcat

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[@Dwedit]

For those curious about the price, this is roughly a $3300 card.

[@krnzzang84]

Dayuuuuuuuuum so what does it exactly do?

[@anand.b6883]

​@@krnzzang84 probably used to connect NASA Supercomputers.

[@griparian]

It's a pleasure watching 'The Master' at work...👍

[@Jim_M_75]

That was one of my favourite repairs if I'm honest, it looked a no fix all the way to me with so many missing pads on the vias. Different level of repair at the micro scale of this card, such a clean and tidy repair when finished to. Great job Alex.

[@Dheazzo]

Today I didn’t see that coming as I once denied a repair of that type but I’ve just realized solder paste makes the magic. I had it even then but I didn’t even think about it, great job I’ve advanced again through almost everyday I advance. Thanks n thumbs up

[@CB27]

I'm new to this. How does paste make it possible vs just solder?

[@dimitristamatakis2431]

If i ever need micro surgery..... I'm calling Northridge Fix! Alex that repair was next level. 😁

[@toxichank6960]

Better than Factory (God)

[@TheBackyardChemist]

All of these caps near the PCI-E connector are AC coupling caps for the PCI-E differential pairs (data lines), they go to the main IC of the card. They always come in pairs, 1 pair = 1 lane of PCI-E. On modern cards the data lines operate at GHz speeds, and it is critical that the electrical properties of the two traces in a pair are as closely matched as possible.

[@Splaterson92]

Is this a repair or will this fail?

[@mauzzz2418]

@@Splaterson92 due to the wire and the microscopic difference it gives in electrical flow i'm affraid this is a no fix...

[@christopherjackson2157]

I wouldn't be so quick to consider those mellanox Asics down for the count. In some competing products that I am more familiar with a signal to noise ratio of many millions to one is no problem. They are far more tolerant of electrical noise than they were even a couple of years ago. As I understand it it is less a question of "how much noise" than one of "how random is the noise"

[@incandescentwithrage]

@@mauzzz2418 Given that multiple PCIe extension ribbon cables have been shown to still work for a GPU at Gen4 speeds even when daisy chained together, I'd say there's a fair chance this works just fine.

[@bruce6364]

@@Splaterson92 Typically in the industry, they extend via out using tiny wire to jumper to part; then secure bond the part to board surface.

[@fekadumesele126]

I have been watching your awesome repair videos for about a month or two, I am really impressed by your hard work, your way of identifying the problem easily, and many of your motivating words. Many thanks for you. I am from Ethiopia and I am thinking about starting a repair business but I need the basic and amazing tools you use for repair like the V2 microscope, hot and soldering stations, thermal camera and so on... One day I will have a business like yours in my own country. Anyhow thanks a lot!!!

[@thesidj]

Good luck!

[@wangbu8869]

I can't believe how steady his hands very surgical and professional amazing so satisfying to watch 👍

[@morbidfury1]

These videos are teaching me so much more about PCB repair than I ever thought I needed to know. Thank you very much for posting these videos, the information alone is super valuable, way more so than any college course can provide. I guess experience trumps all huh?

[@robertlucke4964]

I love hearing him tell it like it is thanks for the video

[@RandomAudioGuys]

Thanks for getting my order packaged up today and says its going out tomorrow with USPS. You taught me alot and I thank you so much for it Alex.

[@Kashalnikov]

This is literally surgery but on electronics. I love it.

[@tobiasmangoma9566]

I have watched a lot of your videos but I think this one is on another level. Manufacturing level.

[@imqqmi]

Pad length of a 0402 component is 0.6mm. He is able to grind a pad/via with a precision of at least 0.1mm and you can hardly see his hands shake at the end of a 10cm long tool under a microscope where a cotton swab fills the field of view. Incredible steady hands and skill!

[@nobuckle40]

You are a surgeon! How you do what you do is absolutely fascinating.

[@SiegeX1]

Your website should use a PID controller to calculate the *next* orders expedited shipping cost as the target variable based on the current price and the amount of expedited orders in the queue. After some amount of time you’ll hit your steady-state equilibrium price.

[@ryansrepairslk]

On my way to work here in Ireland so i can't watch right now. But just want to thank you so much for all your videos. They've helped me more than you can imagine to learn and start to open my own business

[@Yangsom]

You really have me sold on all the the tools and repair accessories. I almost want to buy it all and have zero experience with electronics.😄 But I like tools! You and your experience make it look so easy.

[@zee4uu4me]

Another breath taking repair. 💕

[@Andreas_Straub]

Wow! Very impressed about your workmanship!

[@venerandarain3]

this recovering circular trace that i am talking about, thats why i loved micro soldering! this video absolutely perfect sir! Masha Allah!

[@Nevakonaza.]

Superb repair as usual, I had feeling this was not going to be repairable with those missing pads but as always. you made the job look easy and looks great! :)

[@vladimiralena9129]

A work of art by a wise head and skillful hands.

[@3AMREVIEWS]

That was tense! Crazy precision work!

[@raoul4789]

Hi, I'm French and your videos give me a lot of satisfaction to watch them. That said, I think your videos would be best viewed with a neat and tidy artboard. Keep going like that.

[@mauricefalcon9773]

That was some very delicate work, you have a great touch. Nice job!

[@Masso1973]

Master surgeon at work. Fun watching you work, habboub

[@jontait1095]

Merry christmas Alex to you and the family. Thanks for the great videos this year

[@minibikemadman]

man your work is amazing. I just deal with ef amplifers ... smallest component is a 10 ohm 1/4 watt resistor. Such amazing craftsmanship....I just recently subbed and can't get enough.

[@Jason-zh7wo]

Great job, that grinding pen is amazing 👍

[@termitolaus]

no wonder every next soldering-noob is trying first himself... you make it look so easy, its ridiculous! well done

[@mastergool]

That's amazing pads restoration! Good job, impressive

[@RicardoPenders]

Man, you are a wizard working with those tiny components.

[@richiebob2015]

Simply amazing work

[@user-jw7mk6pc2i]

That is something new! Thank you!

[@paolomonai9511]

Alex, this one is beyond better than factory...It Is Amazing!!! I am really impressed. Well done. Merry Xmas to you and your Family. Regards from Italy.

[@dirzz]

Super precision work!

[@ejeckk]

You are both the repair man and the hype man. You do the repairs with the same tools you sell. Genius! Also, I'd almost be in moral panic grinding away at those microscopic traces. You approach the task at hand with such confidence. Every time I've worked on small traces I get completely stressed out. Great job!

[@BlazenWinchester]

Stress will diminish with lots of practice. You have to make mistakes to learn. Practice on donor/scrap boards.

[@registriert2012]

what a masterpiece of work, i´m very impressed 👍

[@josearrasola7236]

Happy holidays days sir thank you for all your hard work you need break every now and then !

[@johnny4498]

Wow for me that's the most impressive soldering work you did since a long time on this channel. So small

[@sionrafa1546]

Well, I haven't seen this yet, that it fixes missing tracks in a very interesting and unique way. I like it

[@nycdude450]

micro component repairs are hard. props to you.

[@awesomecronk7183]

Coolest PCB repair I have ever seen!

[@weaselstonk6780]

I always wondered how to fix pads where the traces are in a layer in the middle of the board. Thank you for the video.

[@Nic03444]

As usual you’re a legend man ! Good job 😊

[@leewright6101]

merry christmas to your and your family mate love all your video watch them all the time when new ones out thanks lee.

[@melannieworld]

Just here learning and having a cup of coffee ☕ cheers... Great video bro.

[@SolderBrothers]

Very impressive, as to be expected!

[@davidedsondacruz6502]

The Witcher of Repairs, amazing job.

[@davidlguerr]

Great job Alex

[@stefanlechner]

Great work. Amazing. I hope it will work again. Thank you for that video. Greet

[@thadofalltrades]

Seeing that solder paste under the microscope and those impossibly small little balls was super cool. Those kits with replacement pads are really useful. Other channels I watch don't use them.

[@blugoose86]

wow, a true craftsman. Excellent repair job. I can't wait to afford one of your microscopes. Almost impossibe to do a neat job without it. Nice tweezers too.

[@MirceaD28]

Work of art.

[@robindutton7965]

Truly incredible.

[@alwessam4023]

You're a great guy, you have the advantage of good explanation

[@Steffen_]

Very good Repair. I wish u and your Family a Merry Christmas.

[@stillraven9415]

I am entirely impressed 😮 this I figured would be a no fix.

[@patrickhollywood93]

You’re a life saver. Ty

[@maazhasan]

Sir i love the way you explain your job deeply, Love you from Pakistan.

[@reaganlewis9074]

Merry Christmas to you and your family

[@triplexdread]

Yes jitter has gone :D The amount of information people neglect to provide you astounds me

[@viniciusvbf22]

This was one of the finest fix attempts of this channel, IMHO. Even if it is, as some are saying, a "no fix". I think it will work just fine. Great work!

[@rfr653]

Good job mate 👍

[@techmatebolpur9252]

after video private 😂 thanks for this video alex ❤️

[@sdrtech]

Amazing work

[@JamrockVybzTV]

Great work. Thank you

[@aldearegalos3351]

Feliz navidad amigo,un saludo desde España 🇪🇦 aprendo mucho con sus videos.Un saludo.

[@eslenik]

amazing job !

[@fraenkiboii]

"I'm sorry, patient, but I need to grind some more" - Every dentist :)

[@techie5788]

I initially believed you were an electronics technician, but it appears that you possess extraordinary skills in electronics akin to those of Houdini!

[@HazeAnderson]

Merry Christmas! :D

[@KC-nd7nt]

Merry Christmas brother .

[@GardenLives]

impressive repair, good skills sir

[@kurma_grafika]

U'r realy amazing guys Alex.,very great

[@florinel181]

Merry Christmas to you and your family ! I was looking to shop from your store , I do not see the low melt solder . Can you specify which one is it !?

[@arcangeloriccio6112]

You are the top👍👏👏

[@___RoX___]

when i saw the board first thing came on my mind that if i have to fix this board how i am going to fix it (no idea) after watching repair then i know how it should be done i like your repair and learn a lot form you thanks😍😍

[@K6HR]

Like a surgeon!

[@davidshatusky8755]

Alex, absolutely love your content. What program do you use to look at schematics. I saw it in a video but did see the name. I am a hobbyist, 402 is smallest I can solder.

[@usamazaib7679]

Hi NF loves watching your videos every day I learn something from you as I have a passion for this electronic world. I have a question. 1: When you say meter in Diode mode it means meter in continuity mode or diode mode if so what diode mode does it cause I know diode mode is used to check diodes. 2: What if we don't have an LCR meter can we still check caps with a multimeter but yeah for the inductor we need an LCR meter cause there is no option in the multimeter for measuring inductance that's what I know.

[@xbmc79]

I wish you a merry christmas ❤

[@erbro]

Was the vias' copper getting wider because their connection was one layer down in the PCB? In every way a super professional repair! Incredible to see the beads of solder paste under your microscope. Whatever your religion, enjoy the holidays ahead!

[@mohamedhussein120]

It's so small component. But you did a nice jop Alex 👍🏾

[@OldDirtyBasterd]

I told they would . It has to be like 1000$ for expedited. Most won't pay maybe some but if they do you might want to do those first. Just for the cash . But 95 $ still is a bargin. So they will pay it. To many expedite to many to do in little time. Good luck brotha. Thanks for the content and keep up the good works.

[@hoomanhidaji4420]

Hi ALEX Thank you for videos. In this video do you use Barlow lens ? I bought like this camera but work distance very close.

[@NorthridgeFix]

No Barlow lens here. Our microscope is designed to focus at a comfortable distance without the need for one. Not all cameras are build the same. I only use a Barlow lens if I want to see more of the board under the scope.

[@TheBeeman410]

Great video! I think you need to train a couple apprentice so you can handle your work load more efficiently.

[@GODLY29ER]

This man is sick ur videos give me the drive to learn how to repair tech again amazing skills an knowledge

[@user-nf6gn9mf9x]

Hello first of all I thank you for your work I love watching all the videos and all the repairs and I have taken a lot of things thanks to you and I am improving little by little thank you and I have a question please: I know what product you use to clean the motherboard after soldering? I await your response cordially good luck to you

[@gtragle1]

If everyone is paying for expedited, that means you need to raise your price for expedited!

[@rodhester2166]

That was a awesome job. crazy tiny. That microscope is worth its weight in gold.

[@Mountainmonths]

new tweezers look top notch

[@Darren777Au]

Thanks for these videos, totally enjoyable and educational. Have a great CHRISTmas and look forward to seeing more soon.

[@quasardementor8434]

I see you are hapy when make good job done 😃

[@shamsalfaisal]

Came in for repair.

[@XBDT]

what happened to your Fluke DVM? What do you have now?

[@richardwestmacott1433]

Could you not modify the uv lamp time circuit to be longer say 40s save having to do twice

[@maku143]

Precision work 👌🏻 Finest work done & still you will have to Refund, you will not earn out of it. This is business.

[@KnaufL]

The only book that I really want to read in 2023 is the SMD resistor and capacitor book