Lenovo ThinkStation P410 Hardware Maintenance Manual page 44

The following illustration shows the locations of the drive bays.
Figure 6. Drive bay locations
1
Primary optical-drive bay (with an optical drive, a flex module, a flex storage enclosure, or an optical/storage
combination enclosure installed in some models)
2
Secondary optical-drive bay (with an optical drive, a flex module, a flex storage enclosure, or an optical/storage
combination enclosure installed in some models)
3
SD card slot (with an SD card installed in some models)
4
Secondary storage drive bay (with a hard disk drive, solid-state drive, or hybrid drive installed in some models)
5
Primary storage drive bay (with a hard disk drive, solid-state drive, or hybrid drive installed in some models)
6
PCI Express card slots (with PCI Express solid-state drives or other PCI cards installed in some models)
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ThinkStation P410 Hardware Maintenance Manual