System board
NOTE: The system board spare part kit includes battery connector bracket and replacement
thermal material.
All system boards use the following part numbers:
xxxxxx-001: Windows 7 or non-Windows operating systems
xxxxxx-601: Windows 10 operating system
Description Spare part number
System board equipped with an Intel Core i7-6820HQ processor 848221-xxx
System board equipped with an Intel Core i7-6700HQ processor 848219-xxx
System board equipped with an Intel Core i7-6440HQ processor 848217-xxx
Before removing the system board, follow these steps:
1. Turn o the computer. If you are unsure whether the computer is o or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the bottom cover (see Bottom cover on page 29).
5. Disconnect the battery (see Battery on page 31).
6. Remove the hard drive (see Hard drive on page 54).
7. Remove the keyboard (see Keyboard on page 45).
8. Remove the fans (see Fans on page 51).
9. Remove the smart card reader (see Smart card reader on page 53).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
Solid-state drive (see Solid-state drive (M.2) on page 39)
●
WLAN module (see WLAN module on page 40)
●
WWAN module (see WWAN module on page 42)
●
Memory modules (see Memory module on page 33)
●
Graphics board (see Graphics board on page 62)
Remove the system board:
1. Remove the two Phillips PM2.0×3.0 screws from the bracket atop the display connector (1), and then
remove the bracket (2).
2. Disconnect the display cable (3).
Component replacement procedures 63