User guide

Installing System Components 201
Removing the PSU1/3 Module Assembly
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized is not covered by
warranty. Read and follow the safety instructions that came with the product.
NOTE: In addition to supplying power to the system, the PSU modules also have
internal fans that provide thermal cooling for the PSU modules in the power sleds.
A PSU module must be replaced if an internal fan failure occurs.
1 Remove the power sled. See "Removing a Power Sled" on page 198.
2 Remove the two screws securing the PSU1/3 module assembly.
See Figure 3-9.
3 Slide the module assembly back to free it from the metal guides on the
sled tray. See Figure 3-9.
4 Lift the module assembly from the sled tray and then disconnect the
power cable from the power supply. See Figure 3-9.
5 Remove the module assembly from the sled tray. See Figure 3-9.
Figure 3-9. Removing and Installing a PSU1/3 Module Assembly