HP ProLiant ML370 G5 Server - Manual (Page 62)

Hardware options installation 62
Slot Expansion
card type
Connector Speed
1 PCI Express x8 x4
2 PCI-X 64-bit, 3.3-V 133-MHz capable
3 PCI-X 64-bit, 3.3-V 133-MHz capable
4 PCI Express x8 x4
5 PCI Express x8 x4 (optional x8 when
PCIe Bus Expander is
installed in slot 4)
6 PCI Express x8 x4
7 PCI Express x8 x4 (optional x8 when
PCIe Bus Expander is
installed in slot 6)
8 PCI Express x8 x4
9 PCI Express x8 x4 (optional x8 when
PCIe Bus Expander is
installed in slot 8)
Performance balancing
Balancing is the paired arrangement of PCI-X expansion boards for optimal performance based on the
bus architecture of the expansion slots. When populating boards on a shared bus, be sure that both
boards operate at the same speed (two PCI boards or two PCI-X boards). If boards with different speeds
are used, the bus performs at the speed of the slowest board. Performance balancing is not necessary
with PCI Express slots.
To balance expansion board performance, populate slots across different buses before populating two
slots on the same bus.
The population order is only a recommendation. Expansion boards can reside in any slot.
Slot number Population order PCI-X bus sharing
1 1 North bridge PCIe link
2 9 Slots 2 and 3 shared PCI-X bus
3 8 Slots 2 and 3 shared PCI-X bus
4 7 South bridge PCIe link
5 6 South bridge PCIe link
6 5 North bridge PCIe link
7 4 North bridge PCIe link
8 3 North bridge PCIe link
9 2 North bridge PCIe link
Expansion slot cover
To remove the component:
1. Power down the server (on page 20 ).