IBM Power Systems 9008-22L Manual page 19

4. Place the system into the service position. For instructions, see "Placing a 9008-22L, 9009-22A, or
9223-22H system into the service position" on page 45.
5. 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:
v 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.
v 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.
v 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.
6. Remove the service access cover. For instructions, see "Removing the service access cover from a
rack-mounted 9008-22L, 9009-22A, or 9223-22H system" on page 41.
7. Lift each air baffle (A) straight up. See Figure 1.
Place air baffles upside down on a clean area so that the foam does not collect contaminants. When
you turn an air baffle over, hold the detachable drive cover to prevent it from coming loose.
Figure 1. Removing the air baffle
8. To activate the identify LED for the faulty part, press and hold push-button (A) on the trusted
platform module card as shown in Figure 2 on page 4. Verify that the LED (B) is lit, which indicates
that sufficient power exists for the identify LED. If the LED (B) is not lit, use the location code to find
the physical location by using the service label.
System processor modules
3