Laptop motherboard, diagnose & and repair tutorial

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[@eugrafcmg]

I fixed my very first motherboard using your lessons, you made me so proud of myself! Thank Sorin for all you do for us!

[@noaha8915]

Living the dream dude! Congrats.

[@eugrafcmg]

Sorin, above two comments are bots made to scam people. I've tried to report them but you can add filters for your chanel so words like "Flixzone" won't appear.

[@krystelfreeze4906]

Did you have to buy any tools? I was trying to fix my laptop but a chip was burned last night due to the broken DC jack. Now I dont know if It is safe to replace the DC jack and to test on the mainboard one more time

[@eugrafcmg]

@@krystelfreeze4906 try to learn from this channel and do something when you ready. If you just want to fix ones with no tools why these guys don't work with bare hands?

[@TheSpeedbones]

Same for me

[@scottpeeler1569]

I have no idea if I'm actually learning something or not, but it feels like I know more than when I first started watching this a few months ago! Thanks guy

[@HnsxToP]

Great to see you again Mr.Sorin love from Romania!

[@heracross92441]

So happy that you are back. I am watching your video's for couple weeks and yesterday I repaired my first dead laptop. Thank you so much!

[@renataavgeri1132]

I was watching old videos from you again as am entering the try to fix ground as hobby. Love to see you back

[@Pongzkie1974]

As a DIY myself, this is one of my go to channel every time I had problem with my home repairs. Good work sir.

[@brianmonteclaro9865]

nice to hear from you again mr. sorin

[@frozerinosrepairs]

The legend is back again :)

[@flaviusrazvan3999]

I would like to stay by the side of the LEGEND and absorb directly all this knowledge. Thank you for your time making these videos Mr. Sorin. I would like to have a teacher like you, or work with someone like you.

[@nikolaybalev1657]

I am glad to see you again Mr. Sorin, greetings from Bulgaria. You're great.

[@rahmatech7034]

One of your student from Nigeria, I'm inspired with all your lesson thank you sir.

[@asv5769]

Thank you for this video Sorin. It is very educative, especially because of the example where power management chip via current sensing input resistor did not see short and thus shut down input Mosfets. In this case resistance was high enough not to trigger input Mosfet but internal protection in the charger kicked in.

[@epicnaturals4763]

You should do a video explaining the components and what they do on flight controllers and electronic speed controllers for fpv drones. It's a rising hobby and i love the way you explain things!!

[@sergelavallee913]

Good to see you back Sorin!

[@isidrotan7468]

Thank you and welcome back Mr Sorin, watching from Davao city Phillipines. Stay safe.

[@TomiBorchert]

well done asus. great design ( as said on the video). i own 3 asus products, my zenfone 6 had faulty mic jack and a scratch on a new screen. i'm happy they took responsibility and repaired everything for no cost.i love the new asus rog zephyrus model with keyboard pulled back.

[@sleeptothesounds4]

You always remove chips and components so quickly and with precision !

[@mahmoudhamed559]

I am from egypt Good follower since a year Wating for complete labtop repair course from a to z with pen ,paper and schematics followed by some measurements on real motherboards.. I know it'll take long time but you will be the best

[@nilsblibalbalba6948]

1h of skill and good vibes 😎 greetings from Germany

[@inileodickson1192]

Our teacher and instructor is back, welcome sir,

[@markverklas6603]

Thanks so much mr Sorin Always a pleasure watching your brain at work

[@blackartista]

I always learn something new everytime I listen to you. Thanks

[@4Relax]

It is the same like in the pc grapics card if you have 4 phases you can run with only 3 only problem is shorter life time of the other 3 phase. I test it on benchmark and it is working normaly but i will put mosfet back because of less stress to other 3 phase. I learn so many things from this channel.

[@maybelbdidit]

Saw the repair sticker and found this repair shop is literally so close to where I live! That is amazing!

[@kuotshokoza9027]

Where is it?

[@yassinboustahi6246]

You are a master I like the way how you share everything without hiding the information instead of selling it Thank you

[@Solerius1990]

Excellent, second video i watch from your channel, u will have a subscriber from Colombia living in Bolivia Country, thanks!

[@BBaychevv]

Best wishes from Bulgaria!

[@mpodrug7833]

Great job and thx a lot, very calm and relaxing explanation on many things..love from Bosnia and Herzegowina

[@simisongwenya2442]

I've seen your first video last year November and I was like wow this guy is demn supper good with fixing laptops, on march this year I came across the video were u were advising on opening a repair shop , and I liked the words u said "just do it" I've managed to buy most of the tools now , I'm still learning from u all the way to Swaziland

[@zambattmovcon7827]

looking forward to buying some tools as well bro

[@viralbull8085]

This is going on to my saved videos. This one was a pretty good lesson Sorin

[@eliemazraani1685]

Your a generous man and a great teacher, thank you

[@marcosney4116]

unbelieveble patiance and dedication. Good job

[@noaha8915]

Thanks for posting despite the curveball at the end there haha. It was interesting and informative, regardless. Good seeing ya again.

[@SV6JHV]

Hi from Greece ! Thanks for videos!

[@nightangel6192]

nice to see u again >> miss u BOSS

[@whatdapakq]

sorin you are a great man and teacher keep it up. thank you from philippines.

[@drmoose7233]

Thanks Sorin for all you do for us, god bless you, keep you healthy and away from harm

[@djakeanddewchannel970]

always cool mr.sorin , when you host your show ..love it

[@philg1999]

Wow don't think I understood most of what you said I'm still basic but have learned so much from you and in time I will understand this to thank you ☺️

[@ManiekGSF]

Good to see You Sorin !

[@1matejus]

if i saw well the GPU has 3 phases, removing one mosfet the GPU works in two phases and so also gets feedback from the other two coils, the GPU will work but at full load it will run out of current one phase less current is missing

[@Meal-632]

I thought the very same thing and was about to ask on discord server and saw your comment.

[@Dmiliunas]

i think the same. i was under impresion gpu had 4 phases. Sorin simply disconected one phase and laptop will work fine untill gpu ask for more power, then two things will happen, either laptop crashes, or gpu will be limited and throttle back. I had Desktop GPU with burned phase. had to remove both low and hi mosfets, driver and coil. gpu worked fine but showed lower scores on benchmarking.

[@1matejus]

@@Dmiliunas I'm glad you have the same opinion and knowledge Greetings from Slovenia

[@therealb888]

@@neutrinowave it's electronics

[@ricdelrosario9383]

You're a great person Mr. Sorin I learned a lot to you. Thanks a lot. Godbless you always.

[@MrBaha11]

This is a very important lesson Mr Sorin thank you

[@paparazzo80]

I simply love what you do,though not understand many things relating this,but watching your vids makes me a bit happy.Sadly I got covid and my health prognosis is not good,but all I wanted before I die is to meet you and you teach me repairing laptops...keep the vids coming master Sorrin.

[@westhenry9360]

You ain't gonna die please... That's too negative to say.. Where are you from ? Hope you don't mind chatting me up?

[@laypyu]

Hey how are you doing, buddy?

[@shaundeonarine3333]

u good?

[@ricardoferreira2811]

Did you die?

[@silverian]

It is nice how you explain things and troubleshooting!

[@SunShine24024]

Nice to see you again Engr ....we hope you are okay.

[@santiagoguatno9436]

Im a frustrated technician....way back 1994 i work as a technician.. now after watching u sir, dont even say what i want to say..im speechless...just wanna say thank you sir...from the philippines...

[@ravindraadapa2952]

Sir please make a full video about shorting on circuits on the laptop repair section to explain because a very well experienced person like you teaching methods is different from others really awesome

[@adnankhattak6]

Very nice and informative .. your videos are very much educational for us ... Thanks for educating us.. God bless you

[@user.fedorman]

The great Sorin is back!

[@HawkFest]

27:52 Sits back, says "this is a nice laptop", and smoke a Bob... I like this guy

[@monsentertainment3682]

Thank you for being a good teacher!🙏😘

[@goodhealth342]

Nice repairing chanel and you're my best youtuber 👍

[@jatroc2737]

Love your videos and thanks for teaching. Often you reach a conclusion without explaining how you worked it out. So when there was no voltage at the charging port how did you know the charging port wasn't the problem and hence to check for motherboard short? How did you know the charger wasn't bad when there was no voltage on the charger?

[@salviereypayacda5934]

I didnt notice i spent an hour on this video lol. Very informative

[@jholkipan8801]

Thank you Sorin so much for one more lesson.its amazing.i like the way you present the lesson to all the students in your class. Iam a beginner and iam requesting ,if you can do a video for how to inject amps with power supply to find a sort circuit or faulty component. Thanks.. Greetings from New Guinea.

[@argee99]

Excellent, as always. Thanks for the video and knowledge...

[@minkorrh]

I have a lot of faith in Asus products. I've just replaced an 11 year old motherboard for the only reason that the water cooling system had a leak and killed it. Rock solid products.

[@koloxd3]

Great to see you again

[@rosch448]

you are really the best teacher

[@TJTeeVee]

Thank You so much Sorin i've learned a lot from your video its more than a year since ive subscribed to your channel and so far I have improve on laptop repair skill. Thats why im so grateful to come across your chanel been watching all your videos almost everyday, I even save it on my harddrive for my references :) Thanks so much more power to You and Your Channel. God bless.. keep on sharing ... its me Erick from Philippines

[@BurgmanRC]

Mr. Sorin, what you take out from the apple board is not a dual mosfet it is a mosfet with shotky diot inside. Dont trow it away it is a quite expensive part 😁

[@seckinseckin3919]

We use this low side mosfets always as a diode.. check buck converters

[@archivisiondesignstudio1254]

This guy has magic in his hands. 👌👌👍

[@jubzlightknob9560]

hello sir, i think that laptop has dual graphics, removing that dual mosfet for graphics power supply disabled the graphic chip (nvidia/radeon) and the laptop automatically switch to intel display , that’s why the laptop has still display you may check it on bios setup or device manager ..as always you are my first laptop motherboard repair teacher,im forever grateful 😍😇🙏🏽☝🏽💻

[@amk1108]

Very nice explanation of power bus . Thanks :)

[@revolvingtoto007]

welcome back Sorin , again great vid like alway`s

[@aman8053]

Great Work! I request you to make a video on how we can diagnose the problem in motherboard with the help of voltage fluctuation in multimeter. For instance if there is short on power supply of 3v section how we will come to know on multimeter or for instance if there is short circuit on 5v section then how we can come to know on Multimeter. Thank you

[@tanishqbhaiji103]

Sorin, you don’t have to replace the mosfet on modern Multiphase converter it can detect and not use the Missing rail, it will work but it is not ideal for law phase count or high power draw. Buildzoid from Hardcore overclocking channel always does this.

[@pudel7288]

Greetings from Poland 🇵🇱🙂

[@derbaliayoub5876]

Best repair Chanel good luck master

[@Watch__This_]

Great video, nice explanantions... thank's Sorin 🙂

[@mattstroker3742]

Hello hello master! Good. To see you again.

[@TheForexplanet]

Pure black magic, Sorin removes a component the laptop works, it knows its master. G

[@dciking]

From stabbing many GPU input inductors in my repair attempts and sanity checks with known-good cards, 0.8Ω is normal for the GPU Vcore resistance. 1.2Ω (older cards) to 0.6Ω is typical, depending on the GPU.

[@kelvinmoore7765]

Thanks so much Sorin. I had one HP spectre 430 G5 in my repair shop last month, which the 19V rail 1st Mosfet got short (FDMC 4435BZ) after replacing the P channel FET one V-Core chip was getting hot. The computer now turns up but no display. the chip could not be found online.

[@kisszoltan3108]

Hy Sorin! it would be great if the "shop workflow" series continued.

[@solomonmacauley7534]

My name is Solomon I am a Nigerian I repair computer but I want to understand the mother board of the computer. Thank you very much sir for the classes.

[@macumb81]

Greetings from Poland👍

[@Lifeless11111]

When i see Sorin's video first i like then i watch...

[@nderituthuku1245]

From Kenya,great video

[@Bruk55sem]

someone with the money should buy thermal camera for this guy as a thank you gift for the service he is giving us for free all those years... from the end of the world|

[@AhmedAymanM]

Really Hard video to do, and what a massive result in the end!

[@MrtechFIX254]

The best electronic teacher

[@sodiumtechnologiesug366]

This is great.thanks Sorin

[@ODRACLIVE]

Thanks for the video Master!

[@kztech1319]

Wow I actually had the same high-side MOSFET fault like this one but didn't know for sure, but that's on the 3.3V and the SuperIO is sitting right beside it! By the time I get to test this the SuperIO is already gone (getting mad hot)... And the SuperIO has the BIOS on it so it's a goner... But in my case it's water damage and not whether the quality of the laptop is bad

[@Vasilis_Parlamentas]

Hello Sorin! Because you removed that dual MOSFET you cancel one of the 4 GPU power phases. So either the super io regognise that and work that GPU with only 3 phases meaning that maybe laptop cannot overclock that GPU or push it to the limits. OR laptop will crash when some heavy application (like games) force that GPU to work under full load and needs all 4 phases.

[@geonylove]

Bravo Sorine foarte educativ super tare!!!!!

[@milskater]

good video sorin!

[@laboratorioassembler]

Usually I use 3.3v as a voltage for current injection ( if the cap burns.. no way to fry something with a 19v voltage )

[@saeidshariati5103]

thank you,thank you and thank you. inspiration for me.

[@ngwanindi]

Am an apprentice but I stopped going to the shop because of your nice lessons and am doing a lot on my own now. Thanks so much sir. One thing I don't understand and I wish to get help in is how you identify and disconnect certain parts of TV boards and it still works. How can I know how to disconnect this parts how do I follow the links to know?

[@kudakwashekuseni5556]

i like this guy, i have not yet watch the video but i believe he did great

[@milandjukic88]

Maybe feedback is for balancing load on all mosfets. If one is missing power management chip rises load on other mosfets

[@MatthewMusician]

Nice to see you

[@xxycom8963]

@Sorin, I know it is 3 months later watching this video, but it was interesting. The MOSFET you are missing is very unusual. Leave it to Fairchild, the company of brainiac engineers who were the foundation of Silicon Valley, and started the semiconductor revolution. Looking at the data sheet, the same time you were looking it up, it is a 10 pin MOSFET. YES 10 pins( before we get into semantics, it is actually 10 contact points). Pin 9 (GND), and The High Side Drain HSD, Pin 10 are on the bottom side of the chip! The HSD is also connected to Pins 3 and 4.

[@Oak690]

It looks like the short could have been caused by whatever was on the board and not the component. Maybe the FET is still good. That kind of looks like a splash of solder.

[@james_brook]

Thank you for videos 🙏🏼

[@andyturner1727]

Well done Detective Sorin . ; - )

[@thiwankasankalpa1393]

Great work.....