GUIDE] Dell 330W Power Adapter Mod for the M17X - Alienware M17x / AW 17 - Tech|Inferno Forums
HP LAPTOP CHARGER CABLE CHANGE / REPLACE 2 PIN TO 3 PIN - YouTube
laptop charger 3 pin Cable Cord Connector DC Jack Charger Adapter 7.4 x 5.0 mm Plug Power Supply Cable for H P - D E L L Laptop 1.2M
Where do I connect the positive wire when repairing a laptop power jack? - Quora
Why do some laptop chargers have three prongs? I get in 2 prongs there is one for positive and one for negative, but why 3? Thanks in advance, sir/ma'am. - Quora
power supply - 3 wires on a (bipolar) DC plug - what are they for? - Electrical Engineering Stack Exchange
Where do I connect the positive wire when repairing a laptop power jack? - Quora
How can I use this HP power supply as hobby power supplly - Electrical Engineering Stack Exchange
Hardware fix for Dell “AC power adapter could not be determined” – project-insanity.org