HP ProOne 400, Hardware Reference Manual, Page: 6 / 49

Webcam ............................................................................................................................................................... 17
Webcam operation ............................................................................................................................ 17
Setting up Windows Hello ................................................................................................................. 17
Synchronizing the optional wireless keyboard and mouse ................................................................................ 18
3 Hardware repair and upgrade ....................................................................................................................... 21
Warnings and cautions ........................................................................................................................................ 21
Additional information ........................................................................................................................................ 21
Removing batteries from the optional wireless keyboard or mouse ................................................................. 22
Removing and installing the rear cover .............................................................................................................. 23
Removing the rear cover ................................................................................................................... 23
Installing the rear cover .................................................................................................................... 23
Locating internal components ............................................................................................................................ 24
Removing and installing memory ....................................................................................................................... 24
Memory module specifications ......................................................................................................... 24
Populating memory module slots .................................................................................................... 25
Installing memory modules .............................................................................................................. 26
Replacing the RTC Battery ................................................................................................................................... 27
Replacing drives ................................................................................................................................................... 28
Replacing a hard drive ....................................................................................................................... 28
Removing a hard drive .................................................................................................... 28
Installing a 2.5-inch hard drive ....................................................................................... 28
Installing the optical disc drive ......................................................................................................... 29
Appendix A Electrostatic discharge .................................................................................................................. 30
Preventing electrostatic damage ........................................................................................................................ 30
Grounding methods ............................................................................................................................................. 30
Appendix B Computer operating guidelines, routine care, and shipping preparation ............................................ 31
Computer operating guidelines and routine care ............................................................................................... 31
Optical disc drive precautions ............................................................................................................................. 32
Shipping preparation ........................................................................................................................................... 32
Appendix C Accessibility ................................................................................................................................. 33
Accessibility ......................................................................................................................................................... 33
Finding the technology tools you need ............................................................................................ 33
Our commitment ............................................................................................................................... 33
International Association of Accessibility Professionals (IAAP) ....................................................... 33
Finding the best assistive technology .............................................................................................. 34
Assessing your needs ..................................................................................................... 34
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