Acer Predator Helios 300 -Not charging, shutting down on heavy gaming - Motherboard repair 

You make it look really easy to fix and work on electronics. My dad was an electronics engineer and taught me quite a lot, but I never got to the level he was. You teach in the same way he did. Thank you.

it took me almost 48hrs to find this issue, your video helped me a lot! thank you very much!!

I have a new Acer Nitro 5 (AN515-57) that is not charging also. I was about to spend a bunch of time looking in the wrong area (at the BQ chip), but this video was beautifully timed. I checked my input MOSFETs and at least the first FET is shot, the 2nd is suspect (I'll have to wait until tomorrow to pull out the first one to confirm whether its just that). Thank you Sorin.

Watching you repair these laptops has been a real education for me. Thank you.

You Sorin is the Bob Ross in fixing electronics! Every strokes with your red and black probes over the components makes us shiver in pleasure when you find the problem. 👌

What a great tutorial... I really like what you are doing for us❤

Sorin. România a pierdut oun om de valoare (ma refer la tine) , așa cum a pierdut o sumedenie de medici, tot oameni de valoare. Toți meseriașii au plecat din țară. O zi plăcută și un weekend liniștit. Multe salutari din România.

Where I'm living in Nova Scotia Canada it reached 34 degrees yesterday(Friday) not counting what it felt like and we have been under a heat warning for the last few days. AC was my best friend lol

Nothing like a beautiful day and a beautiful laptop! I, too, woke to a beautiful day and a niiiice laptop repair. Thank you, Sorin! xo

Thank You Mr. Sorin. God bless You.

Finally friday yeah! and Sorin has never run out of the learning lesson. impressive!"

Thank you for another awesome video, Master 🙌🏾

Thank you, Sorin, great job as usual!

Looks like the customer damaged the tape on LVDS cable, and is now rubbing on the fan, you might want to sort that. Congrats on the fix.

Sorin check the fan on the left side. it looks like it's clean because the cable on top is blocking it. The one on the right is dirty like you would expect.

Hi Sorin. How did you know that the replacement mosfet will work? What should I chceck/pay attention to when choosing a replacement?

Great!! Regards from Romania..I watch all your videos...what power station and multimeter do u use now? God bless you! Sănătate

Thank you Master. You have very How now,

Mosfets ❤ when it is an easy fix. I have regular encounters with mosfets replacement😅

Hi I’m watching some of your videos and I positive you’re the kind of knowledgeable person I looking for years. There is any possible way to know where are you based ? I have a rare vintage pioneer A-70 amplifier from early 80s. I would love to have that beauty working again

Thank you ,you're the best

you have a nice electronic precision screwdriver with type-C charging port, can you share what is the brand name, the model no. and where can we buy it?

Another "it's workin" motto , good 💪

Sorine acum 2, 3 ani înlocuiai primul mosfet cu sârmă și ziceai că încarcă bateria f bine , aici cum de nu încărca? Cum explici asta ?

Why did you not test the second mosfet before taking it from the board that to could also have been bad? Then you would have wasted time unsoldering and soldering to the board

Helios 300 uses a 300W charger. That's more than old days regular desktop power supplies hehehe. The newer Helios has a longer battery taking away the 2.5 slot. The older model with 3 slots is nice being able to have the 2.5" for backup and the two nvme's running regular processing.

As I can recall there were 2 laptops back to back with same mosfet issue couple of months back.

you are an expert !

Best 👌 job friend

Hi sir i love u r Knowledge ❤❤

U gotta love how mutch he wants the vid to have 10

your accent is very cool

I now have the same problem on my replacement laptop (after 4 years) but only with videos with a higher resolution, the CPU goes up to 80% and then it just shut down. ☹☺

hi, do u still do coffee and electronics saturday live stream ???🤔🙃

I had a laptop that was shuting down when heavy gaming. After a lot of testing i found out that it was the charger. Just to know thats a possibility too.

ime, seen a laptop with only smd capacitor (big, 'black') and smd component looking like a wide resistor or fuse but with 'p' in its marking, at input, and see no two mosfets, cept further in next to coils..

Sorin video or views on ic drilling or scalping

Good job mate 👍

Hi Sorin, I got a Question. Why is the voltage above 24 volts on the first mosfet after replacing it? Wasnt it ment to be equal or lower to the power supply voltage?

hi , i love your videos, you already fixed two laptops for me in one night. i have this exact same laptop and issue. i changed both mosfets in my case when i check voltage on charger i get 19.5v when i check the DC jack with charger it drops to around 0.04v then i check the charger again and its still 0.04v only if i unplug the charger and replug it and check the charger again it’s back to 19.5v is there something shorting out the charger ? i have also replaced DC jack i have no customer history on this one . any help appreciated thanks 😊

I wonder if this is what happened to my Acer Helios 300 laptop, bought one off eBay, (After i bought it the seller disappeared) Ran a game, soon as the laptop started to draw power for the game the laptop shut off and it's never worked since. i'll have to check those Mofset's, any other ideas? I'm hoping to try and repair this laptop board.

Plz sir, I had this problem today and fixed it by changing the old MOSFET and there was a burnet small capacitor underneath the graphic card,,, how to prevent this from happening again. Plz answer me. Thanks

Thanks 🙏

awesome

THANK YOU I HAVE THE SAME MODELMAYBE A WII HAVE THE SAME PROBLEM

Interesant, deci si eu am cumparat o baterie noua, apoi un incarcator si tot nu incarca bateria, desi icoana de jos arata ca este la incarcat, bateria sta la 0%. Model Acer Predator Helios 300 ph315-51. Deci posibil sa imi trebuiasca aceiasi operatie facuta dar nu ma pricep si nu stiu pe nimeni sa faca asta, in zona din Germania unde stau acum. Imi poti recomanda de unde pot lua exact acest mosfet si aproximativ ce scule sunt necesare pentru asa ceva ?

Great educational and interesting video (as usual) - may I ask what power supply are you using as I cant see one in your Amazon shopping list or if it's not available any more what one do you recommend please?

Hi Sorin needs your valuable help. After replacing the Acer Predator Helios 300 Laptop LCD Panel, the Charging Light does not come on at all. There is no power to the laptop. At first the blue light came on and then unfortunately it went off. Many people on the Acer Forums experienced this problem after replacing the screen. Most of those who experienced this problem changed the LCD screen without removing the battery. Could this situation have caused a short circuit on the motherboard?

On Helios 300 first mosfet is 100A. Often this one EMP21N03HC

sorin, do you have a theory on why these mosfets short so frequently? combo of excess current from high current aps on laptop & air temperature? purely a guess. and how much due to design vs how much due to user?

Nice Laptop

Grandpa... What gaming laptop do you recommend? Since Asus & Acer Laptops always experienced Capacitor & Mosfets problems. 😅😅😅😅

Can you repair broken vga cable pins

Great!

Power supply could have a blown MOSFET in it which is causing MOSFETs and s*** to blow inside the laptop which is actually very very very common to see in the US but probably not in the UK Good chunk of the time it's actually the power supply here that caused most of the problem

Great analyses and fix. Now we know, nice laptops (not beautiful ones) are actually second-rate, ho, ho.

So this model has common fault with 1st mosfet?

Why 25v at gate?

where do i get all your courses bro ?

I wonder how you connect the charger to see the current on another screen?🤔

Sorin your smarter than ChatGPT, I asked ChatGPT what's the best way to find a fault on an electronic circuit board, it gave me 8 steps to find a fault, meanwhile you can do it in 3 steps or less, your a wizard.

Sorin, what do you mean when you say "sold mosfet"?

Hi Sorin, Why didn't you check the ratings of the replacement part? You take a random part and assume it is equivalent?

Hey can you please help me with my acer predator helios 3000 p315-53 .it suddenly turned off while it was on charge and i was using it...but then it never turned on and also not charging.

gold

sorin how do you recognize a dual mosfet aside to others? and how to replace mosfet if you dont have that model mosfet?

what is your name good sir?

Heavy gaming with a classic HDD instead of SSD? Owner is sadistic?

That Laptop Chrip sounds

During my technical education, my electronics teacher never allowed me to say that something was 'perfect' or even 'excellent'. "You do mental masturbation", he would say... 🙂

My predator is generator 11.8 amps..

Caldură mare mon cher

👍👍👌👌

that is funny just fix that laptop yesterday

I heard a sound! Means that HDD could die soon. I will put that HDD in the garbage and install a SOLID SD, then that laptop is going to be faster than before.

my helios 3000 die 40 min ago😭😭😭😭r.i.p

Hello🤝👍👍👍👍👍👏👏👏👏👏👏👋👋👋👋👋👋

Hello fluke master

😄👏👏👏❤

expensive laptop not even a year mine is and already has this problem that means low quality chinese junk next time im buying dell or hp

In your country the temperature makes no sense 32 is just about freezing here in the US below zero is below zero and your country I don't know what you call him minus 32 cuz that's what you guys consider zero here we go 0 - 1 - 2 - 3 on each one see what I'm saying oh no it makes no sense there bye 32° is 80 something in your country that why that makes no sense why I just say 82 I don't get it

2nd

Third

What's the brand of your electric screw driver? I want one!