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ASUS TUF Gaming Laptop - FX505D-DBQ234T with i5-8750H and Nvidia gforce GTX. MFD-2019-05.

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Laptop only turns on without CMOS battery

Hi,

Hoping everyone having a great day. My laptop won't turn on by pressing the power button, it only turns on when I remove the CMOS battery and plugged the charger cable, it turns on without even pressing the power button, is the CMOS battery causing it? As far as I know the CMOS battery only keeps the BIOS settings when the unit is off.

Thank you for answering my question your answers will help a lot.

Note:

I've tried to drain the residual power from my laptop and that doesn't work either

Answer this question I have this problem too

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4 Comments:

Hi @melert1516,

Does it turn on when on the main battery only and not the charger?

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Hi guys,

Thank you for your response.

Does it turn on when on the main battery only and not the charger?

No, it will not turn on and no any kind of indicator on the LED lights when I press the power button.


What is a CMOS reset/reboot?

I've tried it once and my unit is the same as before.

Note:

this is my first time asking a question on any forum, it means so much to me that you guys are responding to my question

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@melert1516

is there a battery installed in the laptop?

If so create a battery report to check the condition of the battery.

When you have the report compare the Design Capacity value versus the Full Charge Capacity value as shown by the report.

If there is no battery installed has it worked OK before on the charger only and for how long has it been used this way?

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@jayeff

yes there is a battery installed, I'll to create a battery report

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Have you tried doing a CMOS reset/reboot?

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What is a CMOS reset/reboot?

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Yes, but it doesn't solve the issue either :<

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it seemy your power button is not working. It is normal for many laptops to autostart afetr power reset which you do by removing cmos battery. If the button is fine, then it might be actually a much worst issue with RTC section in PCH. I seen this problem caused by bad ME region, so it worth upgrading bios if possible.

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Hi,

Thank you for your answer.

Sorry for being dumb, i don't know what is RTC, PCH or even the ME region.

but to answer your comment, I've tried to manually turn of my laptop using the power button and it does not work.

I noticed that when the both cmos and main battery the capslock indicator (LED) is on but the laptop is not even turned ON

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If laptop is on and you hold power button for 8+ seconds, does it go off?

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I hold it for like a minute to be sure that my power button is either working or not

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well, that means power button is not working on your laptop at all. so basically it has autostart after no RTC power state.

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