Nein, es heißt: "Erinnerst du dich noch an mich?" "Denkst du noch an mich?" bedeutet "Do you still think of me?" Of course, you can't "think" of someone without "remembering" him but the two sentences are used in different situations. "Erinnerst du dich noch an mich?" You meet somebody whom you haven't seen for a very long time. You can't be sure if he still remembers you. "Denkst du noch an mich?" is often used by disappointed people. For example by a divorced man who wants to know if his ex-wife has still got some feelings for him. Another example: When you asked somebody to do you a favour and he agreed but doesn't do this favour, you can ask "Denkst du noch an mich?" instead of "Did you forget me (or what you promised)?".