I searched all over the internet but I didn't find the answer to my question

I recently bought a bass (Skjold on the way!!!

) and paid with a echeck. I have enough money in my paypal balance but I read that paypal will take the money from my bank and not my balance?!? I don't have enough money in my bank!! so my question is: are they gonna try to take the money from my bank or are they gonna use my paypal balance?
Thanks a lot guys!!
