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Slot 2 and Slot 3 are x8 PCIe slots that have x16 mechanical connectors. These slots support
form factor PCIe cards, and support the highest power 75 Watt PCIe card. However, only one
75 Watt PCIe card in either slot can be installed in the server at one time.
Install the 75 Watt card in Slot 2 for better cooling.
Tip -
4.1.2
PCI Cards on the PCI Mezzanine Assembly
PCIe Slots 4-9 are x8 PCIe slots and support low profile PCIe cards and Max power for each
slot is 25 Watts. PCIe Slot 4 and PCIe Slot 5 are combination slots with XAUI4 and XAUI5.
The following restrictions apply:
1. If a XAUI card is installed in the XAUI4 slot, the PCIe Slot 4 cannot be used, and the
Ethernet Port 1 on the motherboard will be disabled.
2. If a XAUI card is installed in the XAUI5 slot, the PCIe Slot 5 cannot be used and the
Ehternet Port 0 on the motherboard will be disabled.
4.1.3
High Bandwidth PCIe Card Installation
To balance the PCIe bus bandwidth from the upstream of the PCIe buses, it is suggested to limit
the numbers of high bandwidth PCIe cards installed in the server. It is also suggested to install
the high bandwidth PCIe cards in the assigned slots. The following are two examples:
Example 1 – If one or two XAUI cards are installed in the server, it is suggested to install two
high bandwidth PCIe cards: one in Slot 2 and in Slot 8.
Example 2 – If there are no XAUI cards installed in the server, it is suggested to install four
high bandwidth PCIe cards: one in Slot 2, 4, 8, and 9.
4.2
Replacing PCI-X 0-1 and PCIe 2-3 Cards
For additional installation information and configuration details, refer to the documentation that
shipped with your PCI card.
Remove PCI-X 0-1 and PCIe 2-3 Cards
Before You Begin
Note -
accept long cards.
The maximum power of any one PCI card is 25 watts. Only PCI-X slot 4 and PCIe slot 5
4.2 Replacing PCI-X 0-1 and PCIe 2-3 Cards
Chapter 4 • Replacing Motherboard Assembly Components
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