What precautions should I take before adding or removing memory modules?

You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)

From the official HP Elitedesk 800 G3 Small Form Factor PC manual, page 26

People also ask

What safety measures should I take before upgrading RAM on my HP Elitedesk?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)
How can I prevent damage to memory modules while working with them in my PC?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)
Should I touch a grounded object before handling internal components of the HP Elitedesk?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)
What is the proper way to discharge static electricity before touching memory modules?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)
Can I add or remove memory modules while the computer is still plugged in?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)
Is there risk involved when adding or removing RAM without turning off power?
You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet, and adding or removing modules while voltage is present may cause irreparable damage to the memory modules or system board. You should also ensure you are discharged of static electricity by briefly touching a grounded metal object before handling memory. (Page 26)

Have a follow-up question?

Answers from the official manual.

Common questions