NVIDIA Quadro Sync II

FAQs

• What order do I need to connect the GPUs to the Quadro Sync II card?

  Connect the Quadro Sync II card and up to four NVIDIA RTX/Quadro cards with included cables. On the GPU make sure to connect to the connector labeled “SYNC.”

• Can you use the fifth port on the Quadro Sync II card to synchronize a fifth GPU?

  No.

• Can you configure and monitor a Quadro Sync II card remotely on a Windows System?

  Yes, the Quadro Sync II card can be configured and monitored through NVWMI either locally or remotely. Sync events are exposed through NVWMI.

• Do you support different lengths of internal cables with the Quadro Sync II card?

  Yes, the Quadro Sync II card ships with four 12” and two 24” sync cables.

• Does it matter which connector I use when connecting two Quadro Sync II cards together?

  Yes, it matters when using two Quadro Sync II cards in a system. In that case, each Quadro Sync II card must be connected to the other Quadro Sync II card using the CON0 connector. When using only one Quadro Sync II card in a system, any connector can be used to connect to the GPU.

• Can the Quadro Sync II card be used with a Quadro M “Maxwell” or K “Kepler” series GPUs.

  No.

• What is the difference between Quadro Sync and Quadro Sync II cards?
  • The Quadro Sync II card provides the following new functionality over the Quadro Sync card:
  • Compatibility with Quadro P-series graphics boards and later (The board is not compatible with older GPU generation series graphics boards).
  • Quadro Sync II adds a fifth connector. One connector may be connected to a 2nd Quadro Sync II card used by the same system. The additional fifth connector enables connecting to up to four GPUs and to 2nd Quadro Sync II card.
  • Synchronization of up to 8 GPUs in a common chassis when used with a second Quadro Sync II card.
  • TTL Sync Generation output via the BNC connector.
  • Support for up to four sync “chains” in a single system when two Quadro Sync II cards are used in a single system.
• Can two GPUs be synchronized with NVLink bridge on supported GPUs?

  Sort of. It is true that the NVLink bridge includes some of the same synchronization signals that Quadro Sync uses, however, these are only active when the NVLink’d GPUs are configured in Mosaic mode, and only the GPUs in the NVLink pair are synchronized. GPUs may be synchronized with an external sync only through a Quadro Sync II card. GPUs in an NVLink pair cannot be synchronized with external sync.

• Mosaic works without NVLink, can multi-GPUs be synchronized using the PCIe bus rather than using a ribbon cable?

  No, for Sync functions to work, the Quadro Sync II card needs to be physically connected to the GPU. Even though Mosaic mode can be enabled when GPUs are connected through the PCIe bus, it is not synchronized. If the GPUs are connected to a Quadro Sync II card Mosaic will be synchronized.