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Jj731
What's DOS?
Posts: 2
Registered: ‎01-16-2017
Location: US
Views: 1,180
Message 1 of 3

Lenovo Yoga 3 14" 80JH where is the CMOS

Trying to locate the CMOS. Laptop died. No charge light, no power with battery or with battery disconnected and just a/c. Assuming it's something with the motherboard, would like to try disconnecting CMOS to see if that helps. 

Lenovo Technology Partner
Posts: 570
Registered: ‎07-07-2014
Location: PH
Views: 1,103
Message 2 of 3

Re: Lenovo Yoga 3 14" 80JH where is the CMOS

Hi Jj731,

You may be right that the motherboard may have failed. You can check the system Hardware Maintenance Manual from the support site. I would recommend calling Lenovo Warranty Support if the unit is still under warranty. 

Hope this helps.

Cheers, 

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Jj731
What's DOS?
Posts: 2
Registered: ‎01-16-2017
Location: US
Views: 1,099
Message 3 of 3

Re: Lenovo Yoga 3 14" 80JH where is the CMOS

Sadly the hardware maintenance manual has no diagram of the a-381 motherboard and I have scoured the internet for one to no avail. It's also 4 months out of warranty. Is it possible it doesn't have a CMOS? I've pulled out the motherboard and looked under it as well and cannot find one. 

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