Fan And Power Supply Airflow; Fan Assembly - IBM SAN512B-6 Installation, Service And User Manual

Figure 50. Fan assembly

Fan and power supply airflow

All fans and power supply FRUs installed in this device must have either NPI
(nonport-side intake) or NPE (nonport-side exhaust) airflow. You must order a
replacement FRU with the same part number (P/N) as the FRU being replaced to
provide the same airflow. The manufacturing P/N, located on the top of the FRU,
contains either NPI or NPE. If a mismatched power source or fan assembly is
installed by mistake, a RASlog message occurs indicating that a mismatch in fan or
power supply airflow has occurred and the FRU is faulted.
174
SAN512B-6 Installation, Service, and User Guide
1 - Power LED
2 - Captive screw
3 - Status LED
4 - Airflow label
5 - Air vent
6 - Handle
7- Captive screw