3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.
Reverse this procedure to install the WLAN module.
Memory module
NOTE: Primary and expansion memory is installed in a side-by-side conguration on the system board. If
only one memory module is installed, it must be installed in the socket labeled 1.
Description Spare part number
8-MB, SODIMM, DDR4-2400, 1.2-V 862398-855
4-MB, SODIMM, DDR4-2400, 1.2-V 862397-855
2-MB, SODIMM, DDR4-2400, 1.2-V 864271-855
Update BIOS before adding memory modules
Before adding new memory, make sure you update the computer to the latest BIOS.
CAUTION: Failure to update the computer to the latest BIOS prior to installing new memory may result in
various system problems.
To update BIOS:
1. Navigate to www.hp.com.
2. Click Support & Drivers, and then click Drivers & Software.
3. In the Enter a product name/number box, type the computer model information, and then click Search.
30 Chapter 5 Removal and replacement procedures