Need help with saving my Clevo that suddenly stopped powering on and reacting to charger :-(((

[dude-137]

Just happened out of the blue.

Ironically enough, I just created the "Improving Cooling / Fans Upgrade In Clevo" thread, and 10 hours later my Clevo P751TM1-G suddenly dies.

 

What happened:

So I was watching YouTube, then the laptop suddenly turned off.

This was accompanied my some very quiet sound of, well I don't know how to describe it plus everything happened too  quickly, maybe a click, maybe something else, I don't know, but there was some quiet short strange sound I'm quite sure.

Then I tried to turn it on, I think the power LED blinked orange, maybe 1 time, maybe 2, I don't know.

And then, the entire system stopped reacting to anything in any way.

 

Pressing power button - nothing happens.

Power adapter is plugged - no LED light, no anything.

It pretty much seems just dead.

 

I've currently removed the heatsink, CPU and GPU.

I think, there was a burnt smell a bit to the left from the center, where the power port and CPU are, but the smell was weak, could feel it only when holding my nose a few cm away. Or maybe this is the standard smell of heated electronics? 

And, the only strange visual thing I've noticed is the strange gradient of that black thing surrounding the main GPU chip. You can see it on the attached images. Does this look bad, or is it normal?

In any case, I tried to plug the charger with these parts removed and see if the orange power LED is back, and it's not.

 

I guess in order to reach the power block i need to continue the disassembly, but for now I'll just wait for some replies.

 

I'm ready to disassemble further and take images of various parts upon request.

 

What could this be? Can it be repaired or replaced? What/where should I check?

 

I would be thankful for any tips or help.

 

I really hope the solution can be found.

If it's the end, it will be a huge loss, and a fullstop of doing all tasks, processes, duties, work, and pretty much everything, until a new barebone+motherboard is found-ordered-received.

[zex4]

That's a really bad situation. I've been using a 775dm3 myself since 2018... something like that happened to me quite often, but luckily it was always the GPU. Only one GPU had visibly defective MOSFETs, but I couldn't find any visible problems with the others. Completely disassemble the laptop and check if anything is visible on the motherboard. Check even the smallest components. Try starting the laptop without the GPU and CPU.

If there's a short circuit on the motherboard, it could also have destroyed the CPU or GPU.

It's also possible the charger might be damaged. From the old notebook review forums, I know that some Clevo 330W chargers had a green light but still didn't deliver any power.

[JadeRover]

Do you have a multimeter ? If so you can look up guides for "check laptop power rails" and try to find the short. 

 

If I had to guess you probably have a main power rail short = would explain the no reaction to power button.

 

What about booting the laptop without a GPU ? Do you have a spare cpu as well for testing ?