Good day. I have ask the owner again what he was doing when the laptop crashed. He told me that he was playing candy crush when suddenly the laptop froze. He pushed the power button forcing it to shutdown and after that it never opened again.
When I took the laptop apart I noticed that the ventilation area, the one on the heatsink is clogged with dust. At least 3mm thick of black cottonlike sponge. Visually hot air produced by the heatsink cannot go through it making the gpu very hot. So is it possible that gpu is the cause? considering that the voltages are ok.
And other thing I tried to turn the laptop on without the processor and memory same thing happens power led blinks once then nothing.
I really wanted to make sure that we took every step to ensure that power is ok on the motherboard before doing a reflow. It is the last option that I'm considering.
As of now I'm inspecting the gpu and there are memory chips around it, maybe I need to reflow those too, just in case. Thank you very much for your help and patience.
sorry for the late reply, been busy for awhile. I tried doing a soft reflow on the gpu and yet still same issue, today I'll be reflowing the video memory chip that I found beside the gpu chip. If nothing happens I think this board is junk.
Thats the problem, as of now I do not have the equipment to perform reballing procedure.
I tried to reflow the SIO chip, whenever I press power button power led no longer blinks but still no power. One thing I also notice is that whenever I plugged the ac adapter amber light lit on LED2 I think its the battery indicator. There is no battery inserted and the motherboad has been taken out from the case. Why is it doing that? strange...
I think it may have gotten worse. Laptop is totally dead with no lights. no response from power button when pressed. But Still 5v and 3.3v are ok. Do you guys from Phil know a place where I could buy npce781La0dx SIO chip or do I need to order it from ebay? Thanks again
For the record I would like to say thanks to all people involved in my post. The issue is now solved. What I did was, I replaced two smd capacitor underneath the processor socket. This is quite similar to those toshiba nec tokin problems. Never knew that the problem lies just underneath... Again thanks to all and kudos to badcaps!
can you please specify what value of smd capacitor you replace on the motherboard? i think i have the same problem on my laptop.. like to replace it but hav no idea what capacitor is.. thanks in advace sir..
For the record I would like to say thanks to all people involved in my post. The issue is now solved. What I did was, I replaced two smd capacitor underneath the processor socket. This is quite similar to those toshiba nec tokin problems. Never knew that the problem lies just underneath... Again thanks to all and kudos to badcaps!
As I can recall its labeled 330 d. its a 2v 330uf tantalum capacitor. I replaced 3 of them. just under the processor. I had 2 shorted but I replaced all 3.
As I can recall its labeled 330 d. its a 2v 330uf tantalum capacitor. I replaced 3 of them. just under the processor. I had 2 shorted but I replaced all 3.
awesome work.
when i have board like that and i have some time i lift up the caps and check them.
good to know i`m doing the right thing
good day, got same issue here, is this resolved or not, can pls... help me regarding this ive done the check v all of the instruction except the reflow. what possible parts causing the the problem specific parts..... thanks
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