The Toon's win came courtesy of an injury-time winner from Papiss Cisse.
On another day, Cisse might have left with the matchball, but ultimately, his injury-time header claimed the spoils in the nick of time.
Cheick Tiote had rattled the crossbar two minutes earlier with the Magpies engaged in an all-out assault on the Palace goal, but the woodwork had previously saved them after Yannick Bolasie's 56th-minute shot had evaded keeper Tim Krul.
Asked if the goal might belatedly kick-start Cisse's season, Carver said: "You'd like to think so. There are only eight games left, so if he goes on a run from now until the end of the season, he'll have had a good season, I think.
"I'd like to think so. He is a confidence-type player and you know what strikers are like, if they get one goal, sometimes they get two, three, four goals, so hopefully."
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