AUX Power Connector

Alveo U55C Data Center Accelerator Cards Data Sheet (DS978)
Document ID
DS978
Release Date
2023-06-23
Revision
1.3 English

The Alveo U55C accelerator card includes an 8-pin PCIe AUX power connector that provides additional power configurations. All configurations use, at minimum, the 75W PCIe slot power. Connecting a 6-pin or 8-pin PCIe AUX power cable provides additional power. The maximum power available for the various AUX power cable configurations is given in the following table.

Note: The PCIe AUX 8-pin connector is not compatible with an ATX12V/EPS12V power cable source. Ensure that the appropriate PCIe auxiliary power source is available, and not an ATX12V/EPS12V power source. For more details, see Answer Record 72298.
Table 1. Power Availability
AUX Power Configuration Maximum Power Available
No AUX power cable connected 75W
2x3 AUX power cable connected 150W
2x4 AUX power cable connected 225W 1
  1. While this configuration supplies 225W, the U55C card consumes at most 150W.

  2. The Alveo U55C card supports multiple power solutions, and the electrical power capabilities can exceed the thermal capabilities. See Table 1 for card thermal design power.