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In the Dell PowerEdge T550 server, the auxiliary power for a GPU comes from specific power connectors on the server’s motherboard and power supply unit. These connectors are designed to provide the additional power required by GPUs, especially high-performance ones, beyond what the PCIe slot itself can supply.
PowerEdge T550 GPU Auxiliary Power Connections
- Dedicated GPU Power Cables:
- The Dell PowerEdge T550 has dedicated power cables coming from the power supply unit (PSU) to provide additional power to GPUs.
- These cables typically have connectors that match the common auxiliary power inputs on GPUs, such as 6-pin, 8-pin, or 6+2 pin PCIe power connectors.
2. Power Distribution Board (PDB):
- Some configurations of the PowerEdge T550 include a Power Distribution Board that manages power from the PSU to various components including GPUs.
- The PDB will have specific sockets for GPU power cables.
Specific Connectors for GPUs in PowerEdge T550
- 6-Pin PCIe Power Connector:
- Provides an additional 75 watts of power to the GPU.
- Often used for mid-range GPUs.
- 8-Pin PCIe Power Connector:
- Provides an additional 150 watts of power.
- Used for higher-end GPUs that require more power.
- 6+2 Pin PCIe Power Connector:
- This is a flexible connector that can function as either a 6-pin or an 8-pin power connector, depending on the GPU’s requirements.
Steps to Identify and Use GPU Power Connectors in a PowerEdge T550:
- Access the PowerEdge T550’s Internal Components:
- Ensure the server is powered off and unplugged.
- Open the chassis to access the internal components.
2. Locate the Power Supply Unit (PSU):
- Identify the power cables coming from the PSU.
- Look for cables labeled for GPU or PCIe power.
3. Identify the Power Connectors:
- These cables will terminate in 6-pin, 8-pin, or 6+2 pin connectors.
- Ensure they match the GPU’s power requirements.
4. Connect the Power Cables to the GPU:
- Insert the appropriate power connector(s) into the GPU’s auxiliary power sockets.
- Secure any excess cables to avoid obstructing airflow or other components.
5. Check the Server Documentation:
- Refer to the Dell PowerEdge T550 documentation or service manual for detailed diagrams and instructions regarding GPU installation and power connections.
Additional Notes:
- Compatibility: Ensure the GPU is compatible with the PowerEdge T550 in terms of size, power requirements, and supported configurations.
- GPU Power Requirements: Check the GPU’s power specifications to determine how many and what type of auxiliary power connectors are needed.
- Power Supply Capacity: Verify that the PSU has sufficient capacity to support the additional power load of the GPU(s).
- Installation: When installing multiple GPUs, ensure each GPU has its dedicated power connectors from the PSU to avoid overloading a single power rail.
By following these guidelines, you can safely and effectively provide the necessary auxiliary power to GPUs in a Dell PowerEdge T550 server.