asus x555ld not turn on.

[jp_jota]

Re: asus x555ld not turn on.

Pl9301 0v
pl8801 2.620v
pl8101 5.048v
pl8100 3.300v
pl8200 1.082v
pl8003 0v
pl8501 0v
pl8502 0v

[caspian]

Re: asus x555ld not turn on.

All these voltages seem normal. Now unplug the AC adapter and measure resistance to GND on PL8101 and PL8100 and PL8200.

[jp_jota]

Re: asus x555ld not turn on.

Pl8101 22.25kohms
pl8100 256ohms
pl8200 686.5ohms

[caspian]

Re: asus x555ld not turn on.

these measurements seem normal so far. Now plug the AC adapter in and measure resistance to GND on PL8101 and PL8100 and PL8200 again. one of these three coils should be shorted.

[jp_jota]

Re: asus x555ld not turn on.

Pl8101 0l
pl8100 ol
pl8200 ol

[jp_jota]

Re: asus x555ld not turn on.

only coils to have ohms to the GND is the coils without voltage...

[caspian]

Re: asus x555ld not turn on.

was your measurement in post9 with the AC adapter plugged in? If so, unplug the AC adapter and measure resistance on PC9100 again.
After plugging in and without pressing the power button, how much voltage is on pins of R3093?

Note: I was not paying enough attention so far. So a few number of the measurements I said, were not required. Sorry. I have to think on multiple mainboards at the same time, so I mix them up sometimes. but now I will help you discover what is wrong on this mainboard.

[jp_jota]

Re: asus x555ld not turn on.

It's okay. I understand and thank
the help. I'm not on board now. but pushing the button or not is the same. just by pressing the button for a while it lowers consumption. when released again it has consumption. Does this help? You perceive more and better than I do.

[jp_jota]

Re: asus x555ld not turn on.

X555ld repair guide

[caspian]

Re: asus x555ld not turn on.

the board gets reset by pressing the button. so probably, that is why it consumes less for a short period (just maybe). The measurements of Post27 are very important to do tomorrow.

[jp_jota]

Re: asus x555ld not turn on.

Okay. I will make the measurements in the morning and post.

[bluestone]

Re: asus x555ld not turn on.

from all what I have read so far, I think you have cpu short, if your cpu is onboard then you have to do a replacement by reballing

[jp_jota]

Re: asus x555ld not turn on.

the PC9100 have
with AC
pin 1 2.066MOHMS
pin 2 00.42ohm
without AC
pin 1 02.56ohms
pin 2 00.10ohms

R3093 with ac plugin
pin 1 000.1mv
pin 2 021.9mv

[xapita_18]

Re: asus x555ld not turn on.

someone has bios x550ca
mb x550cc rev 2.0

[jp_jota]

Re: asus x555ld not turn on.

someone has bios x550ca
mb x550cc rev 2.0

see here
https://www.badcaps.net/forum/showth...ghlight=x550cc

[xapita_18]

Re: asus x555ld not turn on.

thanks, look there and they are bios x550cc, I need x550ca.
Thanks for answering.

[MarkosG]

Re: asus x555ld not turn on.

the PC9100 have
with AC
pin 1 2.066MOHMS
pin 2 00.42ohm
without AC
pin 1 02.56ohms
pin 2 00.10ohms

R3093 with ac plugin
pin 1 000.1mv
pin 2 021.9mv

HI. I have the same motherboard and the same symptoms. When I connect the charger I have a constant consumption of 0.6A heats the cpu and does nothing, it does the same when I connect the battery. Did you solve it?

[caspian]

Re: asus x555ld not turn on.

I forgot to help @jp_jota after Post33. Probably, I got busy at that time and was away. So I did not see Post33. Sorry.

Dear @MarkosG,
is the 0.6A consumption before pressing the power button? If so, it is too much and you should look for some shorted component on the mainboard.

[MarkosG]

Re: asus x555ld not turn on.

I forgot to help @jp_jota after Post33. Probably, I got busy at that time and was away. So I did not see Post33. Sorry.

Dear @MarkosG,
is the 0.6A consumption before pressing the power button? If so, it is too much and you should look for some shorted component on the mainboard.

Hello!!! When I connect the charger I have a constant consumption of 0.6 A, heats up the CPU and does not do anything without pressing the power button.

The voltages are correct in coils 3v, 5v, 1.1v in the cpu coil.

I reset the bios and it worked, after turning it off it did not work anymore.

[caspian]

Re: asus x555ld not turn on.

the mainboard gets automatically started without pressing the power button. Now, you should discover what changes whenever you reset the Bios.