HP EliteBook 735 Maintenance and Service Guide - Page 69

System board, and insert into the new system board.

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System board NOTE: All system board spare part kits include replacement thermal material. All system boards use the following part numbers: xxxxxx-001: Non-Windows operating systems xxxxxx-601: Windows operating system Table 6-12 System board descriptions and part numbers Description AMD Ryzen 7 PRO 3700U processor AMD Ryzen 5 PRO 3500U processor AMD Ryzen 3 PRO 3300U processor USB connector bracket Spare part number L62284-xx1 L62283-xx1 L62282-xx1 L65688-001 (Bracket Kit) Before removing the system board, follow these steps: 1. Prepare the computer for disassembly (Preparation for disassembly on page 32). 2. Remove the bottom cover (see Bottom cover on page 32). 3. Remove the battery (see Battery on page 45). 4. Remove the keyboard (see Keyboard on page 41). 5. Remove the fan (see Fan on page 57). When replacing the system board, be sure to remove the following components (as applicable) from the defective system board and install on the replacement system board: ● SIM card blank (only models without WWAN) IMPORTANT: After removing the system board, remove the SIM card blank from the old system board and insert into the new system board. ● Solid-state drive (see Solid-state drive (SSD) on page 34) ● Memory modules (see Memory modules on page 35) ● WLAN/Bluetooth module (see WLAN/Bluetooth combo card on page 37) ● WWAN module (see WWAN module on page 39) ● Heat sink (see Heat sink assembly on page 48) Remove the system board: 1. Position the computer upright and open as far as possible. Component replacement procedures 59

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System board
NOTE:
All system board spare part kits include replacement thermal material.
All system boards use the following part numbers:
xxxxxx-001: Non-Windows operating systems
xxxxxx-601: Windows operating system
Table 6-12
System board descriptions and part numbers
Description
Spare part number
AMD Ryzen 7 PRO 3700U processor
L62284-xx1
AMD Ryzen 5 PRO 3500U processor
L62283-xx1
AMD Ryzen 3 PRO 3300U processor
L62282-xx1
USB connector bracket
L65688-001 (Bracket Kit)
Before removing the system board, follow these steps:
1.
Prepare the computer for disassembly (
Preparation for disassembly
on page
32
).
2.
Remove the bottom cover (see
Bottom cover
on page
32
).
3.
Remove the battery (see
Battery
on page
45
).
4.
Remove the keyboard (see
Keyboard
on page
41
).
5.
Remove the fan (see
Fan
on page
57
).
When replacing the system board, be sure to remove the following components (as applicable) from the
defective system board and install on the replacement system board:
●
SIM card blank (only models without WWAN)
IMPORTANT:
After removing the system board, remove the SIM card blank from the old system board
and insert into the new system board.
●
Solid-state drive (see
Solid-state drive (SSD)
on page
34
)
●
Memory modules (see
Memory modules
on page
35
)
●
WLAN/Bluetooth module (see
WLAN/Bluetooth combo card
on page
37
)
●
WWAN module (see
WWAN module
on page
39
)
●
Heat sink (see
Heat sink assembly
on page
48
)
Remove the system board:
1.
Position the computer upright and open as far as possible.
Component replacement procedures
59