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## Rules for I/O Slot Use by Certain Cards

Some optional I/O cards are restricted to specific I/O slots to meet system cooling requirements. Other I/O cards provide better performance when installed in particular slots. PCIe Slot Usage Rules for Certain I/O Cards lists these slot requirements and recommendations.

Note - This table lists only I/O cards that have specific slot or quantity restrictions or other requirements. It does not list I/O cards that are supported by the SPARC T4-1 server but are not subject to slot or quantity restrictions.

Table 1-4 PCIe Slot Usage Rules for Certain I/O Cards

Description | X-option | ATO | Max | Restrictions
--- | --- | --- | --- | ---
Network Interface Card |  |  |  |
10 GbE XFP XAUI adapter card | SE3X7XA1Z | SE3Y7XA1Z | 2 | Slots 0 and 3 only
10 GbE short reach XFP transceiver | SE3X7XT1Z | SE3Y7XT1Z | 2 |
10 GbE long reach XFP transceiver | SE3X7XT2Z | SE3Y7XT2Z | 2 |
SAS Host Bus Adapter |  |  |  |
Sun Storage 6 Gb SAS PCIe RAID HBA, Internal: 8 port and 512 MB memory1 | SGX-SAS6-R-INT-Z | SG-SAS6-R-INT-Z | 1 | Slot 3
SAS cable kit for installation of internal RAID card | SE3X4A11Z | SE3Y4A11Z | 1 |
Sun Storage 6 Gb SAS PCIe HBA: 8 port, External | SGX-SAS6-EXT-Z | SG-SAS6-EXT-Z | 4 | Slots 0, 3, 4, and 5
InfiniBand |  |  |  |
Sun InfiniBand QDR Host Channel Adapter PCIe | X4242A | 4242A | 4 |
Oracle Dual Port QDR InfiniBand Adapter M32 | 7104074 | 7104073 | 2 |
Miscellaneous |  |  |  |
Sun Crypto Accelerator 6000 PCIe Card | X6000A-N | 6000A-N | 2 | Preferred slots 0, 2, 3 or 5
Sun Flash F40 Card3 | 7104482 | 7104480 | 2 | Slots 3 and 5
Flash Accelerator F80 Card4 | 7107092 | 7107091 | 2 | Slots 3 and 5

1Requires SE3Y4A11Z cable kit.

2Requires system firmware no earlier than 8.4.0.b.

3Requires system firmware no earlier than 8.2.1.b.

4Preferred installation order: slot 5, slot 3.

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