1211 PCIe Riser Card Support
CS500 model 1211 root port mapping and bracket assemblies.
The motherboard provides three riser card slots. Based on the PCIe specification, each riser card slot supports a maximum 75W of power. The PCIe bus lanes for each riser card slot are supported by each of the two installed processors.
The riser card slots are specifically designed to support riser cards only. Attempting to install a PCIe add-in card directly into a riser card slot may damage the motherboard, the add-in card, or both.
A dual processor configuration is required when using slot 2 and slot 3, as well as the bottom add-in card slot for 2U riser cards installed in slot 1. Slot 3 does not support SMBus device aliasing. SMBus aliasing prevents devices with common address requirements from conflicting with each other. Any PCIe add-in card requiring SMBus support should be installed into an available add-in card slot in riser 1 or 2.
Riser Card Bracket Assemblies
The 1211 server includes two different riser cards assemblies, one supporting riser slot 1 and one supporting both riser slots 2 and 3 in a back-to-back butterfly configuration. Two guide brackets on the air duct provide support for full height/full length add-in cards when installed in either the middle or top add-in card slots of each installed riser card assembly.
When installed, riser slot 3 supports up to two low profile add-in cards. To avoid possible add-in card bracket interference when installing add-in cards into both riser card 2 and 3, add-in cards in riser 2 should be installed before those to be installed in riser 3.
