Lenovo ThinkPad W520 Hardware Maintenance Manual - Page 104
I/O sub card - usb 3 0
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4 Mac address label 5 Vodafone label 6 Israel label 7 Modem label (only for PRC models) 8 China wireless WAN label 9 Modem AMOM label (only for Brazil) 10 Bluetooth label (only for Brazil) 11 Wireless card label (only for Brazil) 12 SIRIM label 16 Asset tag label For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the label kit and apply them to the new base cover. For the location of each label, refer to the following figure: 1 23 4 16 15 2005, 2010 14 5 13 12 11 10 98 7 6 1190 I/O sub card Note: The I/O sub card contains an Ethernet port and a USB port. For access, remove these FRUs in order: • "1010 Battery pack" on page 66 • "1020 Serial Ultrabay Enhanced device or travel bezel" on page 67 • "1030 DIMM slot cover" on page 68 • "1050 Hard disk drive slot cover, hard disk drive (HDD) and HDD rubber rails or solid state drive (SSD) and storage converter" on page 71 • "1060 Keyboard" on page 72 • "1080 PCI Express Mini Card for wireless LAN" on page 77 98 Hardware Maintenance Manual