Re: Asus X555LJ somewhat alive/dead

Yeah, I'm kinda leaning towards just calling it quits. I have left the motherboard unplugged for the whole day and checking it again, when pluggin the power cord, the laptop kicks on by itself with the fan spinning, but no screen ever shows up. Plus this laptop is in such bad shape, like the keyboard keys stick and the motherboard is yet not fixed. The IO board is also bad, as previously windows and linux didn't report any available audio device, when the laptop was still working. This laptop model is also known for having a very dumb IO board...

Re: Asus X555LJ somewhat alive/dead

Update - laptop doesn't work again. Laptop did boot into BIOS and I plugged in my Ventoy USB and it didn't show up. I plugged in a hard drive, no success and even a windows 7 boot DVD didn't work. After putting in a battery and plugging in the power cord, I got no boot at all. After removing the battery and plugging in the power cord, the fan doesn't even attempt to spin at all. It's like dead now.

Ideas?

Re: Asus X555LJ somewhat alive/dead

Well I be damned, that video literally is the solution. He showed at 21:35 in video a small resistor, which has died. I found the exact spot, where is this resistor located and I noticed that the end of the resistor was gone and the pad has disintegrated with it. Maybe coke did the damage? Anyways I scrapped off just a little of the trace to reveal copper and I soldered a new resistor on. You will see how it looks in picture, one resistor is soldered at an angle. No idea if it's the correct resistor, but I'll be damned this small small component...

Re: Asus X555LJ somewhat alive/dead

I found this video on YouTube, I have the exact fan symptom as he has.
[url]https://www.youtube.com/watch?v=d0p9PCs6qeY[/url]
Maybe the GPU is fine and I'm doing something wrong. Guy has titled the video GPU no power, so maybe there is my problem. Only thing I don't have is that he has an oscilloscope to see how things look visually.

More that I think about it, yeah this can be the problem actually. When the laptop was still working it shut off on load. Then it got worse by itself to the point, where the laptop can't turn...

Re: Asus X555LJ somewhat alive/dead

I have soldered back on the GPU coils and it does the same thing what I saw a year ago when I received the board for repair. When plugging in the power cord, the fan tries to start then fails. It does that on a loop and a clicky electronic noise comes from the motherboard each time the fan tries to spin. I have the original BIOS flashed. When I removed the gpu power coils and reprogrammed the BIOS from a similar model without Nvidia GPU code, the first time motherboard turned on in windows, but again it got worse. I'm gonna guess I made the mistake...

Re: Asus X555LJ somewhat alive/dead

Hi!
I had a hard time desoldering those coils back then and I would have to find them in my parts bin, but it's possible to solder them back if they are needed for testing, but not now as of me writing this response. If it helps, right now I get 2.75ohms and -0.10ohms, because of the lead resistance, so it would be 2.65ohms on the GPU side, where the coil is supposed to be (I attached a picture, which shows where I took the measurement).
Does the ME region need to cleaned even when the bios is the original one I dumped from this...

Hello!
This laptop has had a rough time by it's owner (my cousin ), I was told that it was spilled with coke several times, but how it continued to work is a mystery. Last year I was told that the laptop turned off under load and I confirmed the same thing. I had stuff to do and I left it in a corner. Months later I tried turning it on, but nothing was powering on. I took out my multi meter and I found out that the dedicated Nvidia GPU has a short to ground by putting positive multi meter probe on the GPU power coils and negative probe on the ground screw. I removed the GPU power coils,...

Re: New Members - please post your introductions here

Hi, my name is Markuss.
I have been looking at this forum for some time and I decided to make an account right now. I will try my best to help others, if I will notice a post that I have some knowledge about. I am in no ways a professional, but I do enjoy to spend my time researching and watching youtube videos from my favorite youtubers about repair and history of tech.

Greetings