• Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

It is currently 30 January 2026, 10:30

Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

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  1. Topic title should contain: the device's manufacturer, full model and the brief description of problem.
  2. Topic message should contain: the PCB marking code (required in case of hardware repairs), an extended description of problem, things you have checked/replaced/measured, your conclusions and the question. If you are not able to find the PCB marking code, please read THIS TOPIC. If you still cannot locate the PCB markings, please upload a clean, both-side photos of the mainboard - it is required to remove any films, modules or brackets possibly covering these markings.
  3. Before posting a new topic please read all topics in TRAININGS subforum and make a preliminary diagnostic based on the content of those trainings.
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#1 Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by MendUsThis • 23 January 2026, 12:03
Hello,

With the bench PS connected, current draw is 190mA. Pressing the power button causes the current draw to increase to 280mA, but laptop does not turn on.
With the CMOS and main battery disconnected, current draw is 13mA. Pressing power button, current draw increases to 107mA.
I have 19.5v, 3.3v and 5v present at the buck converter. BIOS chip has 3.42v.
Have checked some voltages around the EC chip (ITE IT5570E-128), they are as follows:
    pin 11 = 1.78v
    pin 12 = 1.87v
    pins 26, 50, 92, 106, 114, 121, 127 = 3.42v
    pin 112 = 3.3v

Resistance to ground on all the coils look OK.
Only have voltage present on the 3 coils shown in the attached photo.

I'm a little concerned about the Vcore value on pin 12 of the EC chip. Does this look normal?

Motherboard part number is 6-77-NH50HP00-D04-5C#1GB1, NH50HPMB-0D.
Mother board model number is 6-71-N5HP0-D04.

Thank you.

Image

Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by Google Adsense [BOT] • 23 January 2026, 12:03

#2 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by matic • 24 January 2026, 14:50
MendUsThis wrote:Motherboard number is NH50HPMB-0D.
Hello!
It is a Clevo motherboard, and there should also be a marking code in the style "6-71-xxxxx-xxx". Please, specify it.

#3 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by MendUsThis • 24 January 2026, 19:46
Sorry, I have added the missing number to post #1.

#4 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by matic • 24 January 2026, 20:52
MendUsThis wrote:Motherboard number is 6-77-NH50HP00-D04-5C#1GB1
This is the part number, not the board model number.
We are interested in the code "6-71-xxxxx-xxx" as suggested. This code is written in white print on the same side as the marking "NH50HPMB".

#5 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by MendUsThis • 25 January 2026, 11:21
Sorry again, number added to post #1 :oops:

#6 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by matic • 25 January 2026, 12:54
MendUsThis wrote:I'm a little concerned about the Vcore value on pin 12 of the EC chip. Does this look normal?
Yes, this voltage seems normal to me.

Please, post clear pictures with visible markings on the two marked chips:
Image

#7 Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by MendUsThis • 26 January 2026, 12:35
Pictures as requested.

Image
Image

Re: Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow

by Google Adsense [BOT] • 26 January 2026, 12:35
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