#1 Gigabyte G5 KD - Does not turn on, power and charge LED both Yellow
von MendUsThis • 23 Januar 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:
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.

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.
