HP ENVY TouchSmart m7-j120dx HP ENVY 17 Notebook PC HP ENVY TouchSmart m7 Note - Page 79

USB board

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USB board Description For use only on computer models equipped with a graphics subsystem with discrete memory For use only on computer models with Leap Motion capability For use only on computer models equipped with a graphics subsystem with UMA memory Spare part number 724142-001 741074-001 720251-001 Before removing the USB board, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 39). 5. Remove the display panel (see Display panel on page 50). 6. Remove the service cover (see Service cover on page 40). 7. Remove the hard drive (see Hard drive on page 41). 8. Remove the memory modules (see Memory modules on page 43). 9. Remove the WLAN module (see WLAN module on page 44). 10. Remove the optical drive (see Optical drive on page 46). 11. Remove the base enclosure (see Base enclosure on page 55). 12. Remove the front speakers (see Front speakers on page 59). 13. Remove the subwoofer (see Subwoofer on page 61). Component replacement procedures 69

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USB board
Description
Spare part number
For use only on computer models equipped with a graphics subsystem with discrete memory
724142-001
For use only on computer models with Leap Motion capability
741074-001
For use only on computer models equipped with a graphics subsystem with UMA memory
720251-001
Before removing the USB board, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
39
).
5.
Remove the display panel (see
Display panel
on page
50
).
6.
Remove the service cover (see
Service cover
on page
40
).
7.
Remove the hard drive (see
Hard drive
on page
41
).
8.
Remove the memory modules (see
Memory modules
on page
43
).
9.
Remove the WLAN module (see
WLAN module
on page
44
).
10.
Remove the optical drive (see
Optical drive
on page
46
).
11.
Remove the base enclosure (see
Base enclosure
on page
55
).
12.
Remove the front speakers (see
Front speakers
on page
59
).
13.
Remove the subwoofer (see
Subwoofer
on page
61
).
Component replacement procedures
69