Dell PowerEdge R510 - Fan Location and Installation

Dell
PowerEdge R510 Technical Guide 31
Figure 23. Fan Module for R510-4 and 8
PowerEdge R510-12 has redundant fans stacked in modules.
Figure 24. Fan Module for R510-12
4.9.2 Fan Location and Installation
PowerEdge R510-4 has four fan modules (it does not have the fan circled in red as shown in Figure 25).
PowerEdge R510-8 has five fan modules. PowerEdge R510-12 has five redundant fan modules which contain 2
fans each for a total of 10 fans.