Fujitsu PRIMERGY TX2550 M5 - Expansion cards or onboard devices not recognized

4.11.3 Removing the fan bridge (low performance
variant)
Figure 47: Removing the fan bridge (low performance variant)
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Press on the two locking tabs (1) while slightly lifting up the fan bridge.
▶
Remove the fan bridge (2).
Basic hardware procedures
94 Upgrade and Maintenance Manual TX2550 M5