HP ZBook 200W power adapter blue pin question

[piipo]

Hi, I have non original 200W power adapter for my ZBook but it limits the computer power. It looks this depends on the resistor value between the middle pin and the main 19,5 rail. Can somebody with an original HP 200W blue pin power adapter to measure between the middle pin and the plus, the resistor value so I can apply the same to mine? On the attached image it's the resistance between the "positive high" and "positive low" - the pin and the inner side of the connector. Thank you so much!

[RethoricalCheese]

Re: HP ZBook 200W power adapter blue pin question

You can't really measure like that. But I've gone through the trouble and can say that you should use a 75k resistor between middle pin and 19V.

[piipo]

Re: HP ZBook 200W power adapter blue pin question

Thank you very much for your answer! I did some research and they said that in original HP small power adapter like in 60-90 watts range. This resistor is about 200k. Mine is also 200k. I will try 75k as you suggested. Thank you once again!