dont know what you need to know
anything that you already tried ,so that posters don't offer help that you already tried .
all i can say is because its not from Compaq ,then you really need to make sure its compatible with the laptop!
also was it plugged in when the dog chewed the cord!
cant test it on a help forum that for sure ,you will need to have a tech look at it . ,and as far as cost goes that depends on the severity of he problem, and what the local computer rate is in you area !.