Dell Inspiron 15 (7548, Late 2014) - Manual (Page 40)

2 Note the antenna-cable routing and remove the antenna cables from the
routing guides on the video-card fan.
1 video-card fan 2 wireless card
3 antenna cables
3 Disconnect the video-card fan cable from the system board.
4 Remove the screws that secure the video-card fan to the system board.
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