My Powerbook's powersupply frayed (near the top, light thingy) i had to rip the whole stupid thing open, then jimi rip it. The black thing is a heat shild, it wont hurt anything to remove it, but it is there to stop shock from comming to your comp. You can move it if you wanted and then it will still serve its orignal purpouses. but so far after moving the one on my comp, no problems have come to it... good luck tho.