Dell Precision 7550 - 10 months ago, i misdiagnosed this laptop and now is back, same fault again 

Did you not hear him at the end reballing wont help

www.aliexpress.com/item/1005001830846980.html?spm=a2g0o.order_list.order_list_main.4.54ba1802tFiemR

He was following just where all neutrons are going.

chipsetul nu este defect!! trebuie facut REBALL. refacute bilele de fludor de pe chip. dar pentru asta trebuie matrita si suflanta cu aer calcd cu controlul temperaturii sau plita pentru ca nu trebuie sa depaseasca o anumita temperatura, altfel, crapa. toti spun "good job", dar, de fapt nu a facut mare branza! vezi "northwestrepair" sa vezi ce face cu cipurile grafice si cipurile de memorie video.........

If you look and pay atention to Sorins videos you will be able to fix any brand. does not matter if it is HP, Dell, Lenovo.

Refurbished is the same deal, gpu or super IO chip

How can it affect thermal performance?

revelprog 15

www.reveltronics.com/en/products/revelprog-is-serial-memory-programmer-usb

I've also noticed that some Dell Precision models run hotter thus causing heat related issues sooner, so I drill additional holes in the bottom cover to assist in cooling.

This chipset doesnt need that for operating, its just several watt, operating temp only around 60 deg c.

Search for "fcbga diagram" and you'll se how they are internally connected.

There are multiple solder points under the chipset so Sorin has warmed them up to melt the solder and remake the contacts,

Its not a solder ball issue the issue is inside the chip itself, there is a microscopic crack in a trace somewhere heating it causes thermal expansion and the crack closes so it starts working again. But the issue will come back as the board constantly heats and cools the break in the chip will happen again

@@Arachnoid_of_the_underverse no, this was not about the solder being bad, the chipset is broken inside due to it's body expanding/shrinking because of temp differences between the on/off laptop. See it as a wire breakage, sometimes when you hold the wire in a certain angle the machine still works. By heating the chipset Sorin got lucky it got back into a working position. He used the thermal pad to reduce the limits of the expanding/shrinking trying to make it a more average endurance for the chipset and hoping it will keep working. But since there will still be a temprature difference everytime the laptop is on and off, the chipset will die in the end regardless ...

Google Revelprog IS, maybe?

www.reveltronics.com/en/products/revelprog-is-serial-memory-programmer-usb

lol, it's not a myth

What a silly comment, where’s you pull that one from ?😂

@@MrReeceyburger123 İt is not a sodler ball fault besides a little rosin and heat up solve the most problems about sodler balls isuuses ,most of the faults are generally about internal cracks of the pin ,didnt you hear that if you dont hear now from me.

@@davianceable chips which get fixed automatically with heat like this die again after a short period, this is not a proper fix.

@@kepler104 yes but reballing also works for short period it isnt about solder balls under it.

No he didn't do reflow. He simply heated the chip to prove a point, the chip is internally faulty. This is a known thing for at least 15 years with large bga chips that run hot. This is why people should add heatsinks or heatpads to all things including tv video board bga chips otherwise they will eventually fail from getting too hot. They are designed that way and manufacturers purposely do not put heatpad there so it will fail because manufacturers do not like things to last 20-30 years.

@@g4z-kb7ct Things don't just repair by themselves when heated - only solder does that. He "repaired" the solder joints only temporary. I've done that in the past too but with temporal effect. And adding thermopads and pressure on the chip doesnt work. May add few hours/days worktime maybe...

He said that the problem isn't with the Solder Balls. The internal circuit ot Chipset is gone.

@@renter84 In my comment I did not say it 'repairs' it. Watch the video about why fat PS3 fails and can't be fixed and you will see it is a known issue where the connections inside bga chips fail. It is known and well documented.

no the chipset is defective, needs replacing

@@user-kr8tp3ko8z that's what Sorin said. But he doesn't have the tools to do a REBALL, he did only a REFLOW(kind of). The laptop will go not work anymore soon. Same problem like today

The chips faulty champ reball won't fix it has internal fault i have seen this before reball did nothing. .@@adaniel69

You're telling me that faulty chipsets are STILL being made?? Cmon people i thought this was an issue during the 2000s

@@lukedavis436 dell latitude d830 gpu vibes :)