IBM 9080-M9S Manual page 355

Figure 300. Removing the service access cover
8. To activate the identify LED for the faulty part, press and hold either blue push-button on the trusted
platform module card as shown in the following figure.
Verify that the green LED (A) is lit, which indicates that sufficient power exists to light the identify LED
on the faulty part. If the green LED (A) does not light, use the location code on the service label to find
the physical location of the faulty part.
Miscellaneous VRMs 349