8 hard drive, 10 system board shield, 11 coin-cell battery – Dell Vostro 330 (Early 2011) User Manual
Page 4: 12 wireless local area network (wlan) card, 13 optical drive, 14 middle bezel, 15 speaker

Installing The Touch-Control Board
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Removing The System Board Shield
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Installing The System Board Shield
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Removing The Coin-Cell Battery
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Installing The Coin-Cell Battery
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12 Wireless Local Area Network (WLAN) Card.....................................37
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