I have an Asus K555L laptop that doesn't show any signs of life.NO lights NO HDD sound NO fan sound. I took it apart and measured the first mosfets and they have power. I also noticed an UP1589Q IC getting very hot and i mean very hot. If someone is willing to help a newbie that would be awesome.Laptop motherboard is K555LD rev 3.3
No signs of life Asus K555L
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Re: No signs of life Asus K555L
You need to remove PL8100 and check short is on which side of the coil pads. Apply 1-2Volts on the shorted side with dc lab supply-shorted component will heat. Btw, do you have lab psu??Comment
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Re: No signs of life Asus K555L
Not the correct way of doing this but 3v3 from ATX power supply might be the easiest DIY short-finder.
Connecting green and black wire together will start the PSU.Comment
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Re: No signs of life Asus K555L
ok sorry for the LONG delay i bought a soldering station with a hot air gun from china and was waiting for it to arrive i did what RethoricalCheese suggested and found that PC8207 was heating up. I removed it and tried booting again BUT again the UP1589Q is getting hot and the laptop is not working.
Last edited by mmdqn; 11-09-2019, 06:17 AM.Comment
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by ongobongoHi Guys,
I'm trying to repair this Asus ROG Strix notebook for a longer while now.
Mainboard is G531GW rev. r1.6
When attaching power notebook straight up turns on but no picture or similar signs of life. Voltages are all there (VCCCORE, VCCSA, NVVDD, 1.05V, 1.2V, 5V, 3V, 12V …. Only VCCGT is missing, but that is ok as far as I read), no obvious shorts on any rails. CPU gets hot quickly without heatsink, GPU gets moderately warm and PCH gets warm as well. EC should be good: power button responds to a long press and after a while the CPU fan kicks in.
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