What are the most common laptops that have this power connector issue?
In descending order the most common models that have this issue are 1) HP (ZD, ZE and ZV series), 2) Compaq since HP and Compaq is the same company they use the same components and designs. 3) Acer (Aspire and Travelmate). 4) Gateways all models have common connector issue. 5) Dells 1150 5150 6000 700m and others use 2 proprietary dc connectors and these have their faults too. 6) Toshiba A70 and A75 series. 7) Asus and Sony are common to work on 8) Fujitsu and Panasonic are really rare but some use Sony boards.