Manual

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
Intel Xeon E3-1505M processor 840933-xxx
Intel Core i7-6820HQ processor and discrete graphics memory 840932-xxx
Intel Core i7-6820HQ processor and UMA graphics memory 840930-xxx
Intel Core i7-6700HQ processor and discrete graphics memory 840931-xxx
Intel Core i7-6700HQ processor and UMA graphics memory 840929-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 service door (see Service door on page 28).
5. Remove the bottom cover (see Bottom cover on page 29).
6. Remove the battery (see Battery on page 30).
7. Remove the thermal module (see Thermal module on page 39).
8. Remove the display cable (see Display cable on page 45).
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 31)
●
WLAN module (see WLAN module on page 34)
●
Memory module (see Memory module on page 36)
Remove the system board:
1. Disconnect the following cables from the system board:
(1) Right speaker cable
(2) Fingerprint reader cable
(3) TouchPad cable
(4) LED board cable
(5) RTC battery cable
46 Chapter 6 Removal and replacement procedures for authorized service provider parts