Sun Oracle Fire X4470 M2, Service Manual

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Chapter 4 Servicing CRU Components That Require Server Power Off 4-17
4.2 Servicing PCIe Cards (CRU)
This section describes how to remove and install PCIe cards.
For the location of the PCIe slots, see Section 1.3 “Server Back Panel Features” on
page 1-10 .
4.2.1 PCIe Card Configuration Rules
The server supports up to ten low-profile PCIe 2.0 cards. Refer to the Sun Server X2-4
Product Notes for details about supported PCIe cards, along with card quantity and
slot restrictions.
The following PCIe card slots are available on the server:
■
Slots 0 and 9: x4 electrical interface
■
Slots 1, 2, 4, 6, 7, and 8: x8 electrical interface
■
Slots 3 and 5: x8 or x16 electrical interface (x16 connector)
Note –
Slots 3 and 5 operate as x16 interfaces only when an x16 capable card is
installed and the adjacent slot (4 or 6) is unpopulated.
To determine the slot in which to install a PCIe card, follow these guidelines:
■
First consider any cooling considerations that require a card to be installed in a
certain slot. For information about cooling considerations for PCIe cards, refer to
the
Sun Server X2-4 Product Notes .
■
If your configuration includes an internal SAS/SATA Host Bus Adapter (HBA),
see if it has an integrated battery pack. Install a battery-backed internal HBA in
slot 4, for best cooling; otherwise, put the simpler, battery-less SAS/SATA HBA in
slot 2.
■
For high bandwidth cards, install the cards so that the load on the server is
balanced between the server’s two I/O hubs (IOH), each of which connects to five
of the available PCIe slots. (IOH0 connects to slots 0–4 and IOH1 to slots 5–9.)
Avoid slots 9 and 0 for high-bandwidth cards since those are the x4 slots. Balance
the load as follows:
– IOH0 (which connects to slots 0–4), might already be using some bandwidth for
the ICH10 southbridge devices, so install the first high-bandwidth card in one
of slots 5–8.