IBM Power System Series Manual page 201

6. Place the system into the service position. For instructions, see Placing a system into the service
position (www.ibm.com/support/knowledgecenter/POWER9/p9haj/
p9haj_950_service_position.htm).
7. Attach the electrostatic discharge (ESD) wrist strap.
The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is
completed, and if applicable, until the service access cover is replaced.
Attention:
• Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack,
or to an unpainted metal surface of your hardware to prevent the electrostatic discharge
from damaging your hardware.
• When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap
is used for static control. It does not increase or decrease your risk of receiving electric
shock when using or working on electrical equipment.
• If you do not have an ESD wrist strap, just prior to removing the product from ESD packaging
and installing or replacing hardware, touch an unpainted metal surface of the system for a
minimum of 5 seconds. If at any point in this service process you move away from the
system, it is important to again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
8. Remove the service access cover.
Attention: Operating the system without the cover for more than 10 minutes might damage
the system components. For proper cooling and airflow, replace the cover before turning on
the system.
a. Push the release latches (A) in the direction shown in the following figure.
b. Slide the cover (B) off the system unit as shown in the following figure. When the front of the
service access cover has cleared the upper frame ledge, lift the cover up and off the system unit.
Memory modules and memory risers for the 9040-MR9 197