Lenovo G50-30 no POST on powerup - Page 2

**mcplslg123** · 02-01-2021, 06:41 AM

@mauda, i dont know which schematic you are refrerring to but my schematic shows pu402 pin2(PG) GOES TO alw_pwrgd through a pull up resistor from +3valw.

**mcplslg123** · 02-01-2021, 06:43 AM

This is the diagram i have.

mauda · 02-01-2021, 12:03 PM

Omg, I am very sorry.

I have a different motherboard:
ZIWBO/B1/E0
LA-B102P Rev: 1.0
2014-06-12

Should I start another thread on this forum?

**mcplslg123** · 02-01-2021, 11:00 PM

Yes, this thread is for NM-A311 and all advises are based on that mb which will mislead you. Better start a new thread.

mauda · 02-02-2021, 01:32 AM

OK, I started a new thread here https://www.badcaps.net/forum/showthread.php?p=1020481.

viking6791 · 01-20-2022, 02:36 AM

Hi all, I have the same laptop with this issue. In my case the IO chip, IT8586E , was burnt. The chip was recovered from lenovo NM-A271 and programmed with a dump from this forum. Someone has found a solution to this defect?

viking6791 · 01-20-2022, 04:10 AM

I find the problems, someone changed the ram memory and it was not compatible, the laptop is working now.

02-01-2021, 06:41 AM	#21
mcplslg123 Badcaps Veteran Join Date: Jun 2015 City & State: siliguri My Country: india Line Voltage: 220vac,60hz I'm a: Professional Tech Posts: 4,284	Re: Lenovo G50-30 no POST on powerup @mauda, i dont know which schematic you are refrerring to but my schematic shows pu402 pin2(PG) GOES TO alw_pwrgd through a pull up resistor from +3valw. Last edited by mcplslg123; 02-01-2021 at 06:43 AM..

02-01-2021, 11:00 PM	#24
mcplslg123 Badcaps Veteran Join Date: Jun 2015 City & State: siliguri My Country: india Line Voltage: 220vac,60hz I'm a: Professional Tech Posts: 4,284	Re: Lenovo G50-30 no POST on powerup Yes, this thread is for NM-A311 and all advises are based on that mb which will mislead you. Better start a new thread.

02-02-2021, 01:32 AM	#25
mauda New Member Join Date: Mar 2016 City & State: Sumperk My Country: Czech republic I'm a: Knowledge Seeker Posts: 17	Re: Lenovo G50-30 no POST on powerup OK, I started a new thread here https://www.badcaps.net/forum/showthread.php?p=1020481.

01-20-2022, 02:36 AM	#26
viking6791 New Member Join Date: Aug 2018 City & State: Timisoara My Country: Romania I'm a: Knowledge Seeker Posts: 12	Re: Lenovo G50-30 no POST on powerup Hi all, I have the same laptop with this issue. In my case the IO chip, IT8586E , was burnt. The chip was recovered from lenovo NM-A271 and programmed with a dump from this forum. Someone has found a solution to this defect?

01-20-2022, 04:10 AM	#27
viking6791 New Member Join Date: Aug 2018 City & State: Timisoara My Country: Romania I'm a: Knowledge Seeker Posts: 12	Re: Lenovo G50-30 no POST on powerup I find the problems, someone changed the ram memory and it was not compatible, the laptop is working now.

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