Question AC adapter for my laptop buzzing Dell Precision M6700

Aug 17, 2019
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I just bought a used: Dell Precision M6700 17.3" Laptop Intel Core i7-3740QM 2.70GHz.

What is the exact wattage / type of AC power adapter required?

I bought a 210W AC adapter (https://www.ebay.com/itm/DELL-GENUINE-210W-AC-Power-Adapter-Charger-Precision-M6400-M6500-M6700-PA-7E/302677733091)

But it makes a minor buzzing sound during laptop usage (in the bios). I have not used the laptop besides entering the bios yet.

Does this mean 210W is not enough? Where can I find offical dell documenation for what AC adapter model is required for my laptop?
 

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