Hardware Reference Guide
Table Of Contents
- Product features
- Setup
- Hardware upgrades
- Serviceability features
- Warnings and cautions
- Removing and installing the access panel
- Removing and installing the access panel of the HP EliteDesk 800 35W
- Upgrading system memory
- Removing a hard drive
- Installing a hard drive
- Replacing an M.2 PCIe solid-state drive
- Replacing the WLAN module
- Installing an external antenna
- Replacing the battery
- Synchronizing the optional wireless keyboard and mouse
- Electrostatic discharge
- Computer operating guidelines, routine care and shipping preparation
- Accessibility
- Index

3 Hardware upgrades
Serviceability features
The computer includes features that make it easy to upgrade and service. No tools are needed for most of the
installation procedures described in this chapter.
Warnings and cautions
Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and
warnings in this guide.
WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or re:
Disconnect the power cord from the AC outlet and allow the internal system components to cool before
touching.
Do not connect telecommunications or telephone connectors to the network interface controller (NIC)
receptacles.
Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
Plug the power cord in a grounded (earthed) AC outlet that is easily accessible at all times.
To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup,
posture, and health and work habits for computer users, and provides important electrical and mechanical
safety information. This guide is located on the web at http://www.hp.com/ergo.
WARNING! Energized and moving parts inside.
Disconnect power to the equipment before removing the enclosure.
Replace and secure the enclosure before re-energizing the equipment.
CAUTION: Static electricity can damage the electrical components of the computer or optional equipment.
Before beginning these procedures, ensure that you are discharged of static electricity by briey touching a
grounded metal object. See Electrostatic discharge on page 36 for more information.
When the computer is plugged into an AC power source, voltage is always applied to the system board. You
must disconnect the power cord from the power source before opening the computer to prevent damage to
internal components.
NOTE: Your computer model may look slightly dierent from the illustrations in this chapter.
Serviceability features 9










