HP ProLiant DL785 G5 and G6 Servers - Maintenance and Service Guide, Seventh Edition

To replace the component, reverse the removal procedure.
Expansion boards
PCIe I/O backplane
DescriptionItem
PCI Express x8 non-hot-plug expansion slot 111
PCI Express x16 non-hot-plug expansion slot 102
PCI Express x8 non-hot-plug expansion slot 93
PCI Express x16 non-hot-plug expansion slot 84
PCI Express x4 non-hot-plug expansion slot 75
PCI Express x4 non-hot-plug expansion slot 66
PCI Express x16 non-hot-plug expansion slot 57
42 Removal and replacement procedures