asus x55A no power

[bicalov]

Re: asus x55A no power

Hello.
Have this asus X55A and i have 19V before the first power mosfet and 0.89V after the mosfet.

i cannot find schematic so any help would be needed

Can this help? I hope the A and the S don't make that much difference.

[ktmmotocross]

Re: asus x55A no power

maybe u forgot to attach something

[atsio]

Re: asus x55A no power

Hello.
Have this asus X55A and i have 19V before the first power mosfet and 0.89V after the mosfet.

i cannot find schematic so any help would be needed

If you have 0,89 volt usually it is not a problem of BQ25. It's a problematic fet.

[bicalov]

Re: asus x55A no power

maybe u forgot to attach something

I thought I had found a good one but that was posted earlier already.

[bicalov]

Re: asus x55A no power

found something, you never know until you try.

[toske666]

Re: asus x55A no power

Greetings to the forum,I have a problem with my laptop Asusx55a?The problem is laptop does work in the charger,only work on battery,and when the battery is charged with the other laptop, when i put in my laptop and turn on the laptop,discharges battery and should be to recharging the battery ?means works until the battery in use,when is empty battery laptop not working or want to charge???? Please Help Meeeeee :-) Regards

[katzbo035]

Re: asus x55A no power

Problem is solved. You have bad "mosfet" on matherboar behind the DC input. Replace the bad mosfet and that's it. On the video is a burning mosfet, bad you have a bad mosfet.

https://www.youtube.com/watch?v=rwIq6ZnHIR4

[akarta]

Re: asus x55A no power

Asus X55A No power, No leds, Wont charge. Checked 5V and 3V (3V can be measured at Bios chip if you have no schematics) all voltage present. Checked CMOS battery: BOOM 0.3v. Replaced battery and laptop now works. Always check simple things first folks!

[DeniS182]

Re: asus x55A no power

I have problem with this laptop, have someone schematic?
I changed charger ic, two mosfets, and I haven't voltage on first mosfet Gate.
Only power led blinks.
MB is: X55A rev 2.2

[risting]

Re: AsUS x55A no power fix

i replace mosfet A5 GNC 100M01 with M0930M
and laptop again working but automatic go to bios no booting windows restart i will try to format and install new windows or motherboard again have some problem on board one mosfet CDJ0961 near to processor give me short to ground i don't know it is this correct inductor and smd capcitors on multimeter give me shorted beep

[risting]

Re: asus x55A no power

video link here; https://www.youtube.com/watch?v=UeEzg2hw8ZM