Fujitsu PRIMERGY TX2550 M5 - Installing a second PSU

4.8.2 Riser modules
4.8.2.1 Removing the riser module
Figure 37: Removing the riser module
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Remove the four screws (see circles).
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If applicable, remove the slot cover lock.
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Carefully take out the riser module.
Basic hardware procedures
86 Upgrade and Maintenance Manual TX2550 M5