IBM 3401-S03, Appliance Operation Manual, Page: 62 / 82

2. As shown in the following two figures, push down and hold the black release latch (1) and pull out
the module by its handle (2).
Important: The cooling module bay must not be empty for more than 2 minutes while the enclosure is
powered.
Inserting a cooling module
1. Rotate the cooling module so that the black release latch and handle are on the right side.
2. Slide the cooling module into its slot until the latch clicks home. The enclosure automatically detects
and uses the new unit.
Replace a power supply unit (PSU)
The process involves removing the existing module and inserting a new one.
Removing a PSU
Important: Before you remove a PSU, make sure that you have a replacement module to insert.
1. Identify the PSU to be removed by using appropriate fault reporting software.
2. As shown in the following two figures, push the red release latch to the right and hold it (1), then
pull out the module by its handle (2).
Figure 41. Removing a Cooling Module (1)
Figure 42. Removing a Cooling Module (2)
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