HP ProBook 450 G3 Notebook PC - Maintenance and Service Guide

System board
NOTE: All system board spare part kits include replacement thermal material.
All system boards use the following part numbers:
xxxxxx-001: Windows 7 or non-Windows operating systems
xxxxxx-601: Windows 8.1 or Windows 10 operating system
Description Spare part number
System board with processor and discrete graphics:
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Intel Core i7-6500U processor; 2-GB discrete graphics memory 827026-xxx
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Intel Core i5-6200U processor; 2-GB discrete graphics memory 827025-xxx
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Intel Core i5-6200U processor; 1-GB discrete graphics memory 827023-xxx
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Intel Core i3-6100U processor; 2-GB discrete graphics memory 827024-xxx
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Intel Core i3-6100U processor; 1-GB discrete graphics memory 827022-xxx
System board with processor and UMA graphics:
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Intel Core i7-6500U processor (models with WWAN) 830956-xxx
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Intel Core i7-6500U processor (models without WWAN) 830932-xxx
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Intel Core i5-6200U processor (models with WWAN) 830955-xxx
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Intel Core i5-6200U processor (models without WWAN) 830931-xxx
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Intel Core i3-6100U processor 830930-xxx
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Intel Pentium 4405U processor 830929-xxx
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Intel Celeron 3855U processor 830920-xxx
Before removing the system board, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by rst 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 34).
5. Remove the following components:
a. Service doors (see Service doors on page 35).
b. Optical drive (Optical drive on page 37)
c. Hard drive (see Hard drive on page 39)
d. Keyboard (see Keyboard on page 48)
e. Top cover (see Top cover on page 53)
Component replacement procedures 71