HP ZE5460

This model is identical to the compaq 2500 series of laptops. It uses the 2.5mm five pin power plug.
I wasn't able to get any of the normal diagnostics to work (wiggle, and adapter tested fine). Once the laptop was torn down the jack had the classic burnt pin that was keeping the laptop from charging properly.
Compaq does an equally poor solder job as any other and is pretty easy to de-solder. I always worry a but when the laptop doesn't power on in my presence but replacing the jack did the trick.