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Dell EMC PowerEdge R7525 Installation and Service Manual

GPU kit

WARNING Consumer-Grade GPU should not be installed or used in the Enterprise Server products.

The GPU FL kit, HL kit, and the GPU power cable kit are three different kits available for the Customer. Depending on the kit ordered, the respective components are available.

Table 1. GPU kit componentsThe table describes the components in the GPU kit.
Components GPU FL kit GPU HL kit GPU Power cable kit
Quantity Quantity Quantity
Risers Configuration 3 3 x FL riser (R1A, R3A, R4A) +1 x HL riser (R2A) OR 4 HL risers (R1A, R2A, R3A, R4A) Configuration 6 6 x HL risers (R1A/R1C, R2A, R3A, R4A/R4C)
Shroud GPU shroud 1 GPU shroud 1
Fans High performance (silver grade) fans or high-performance (gold grade) fans 6 High performance (silver grade) fans or high performance (gold grade) fans 6
Heat sinks L-type: heat sink (DFR7M) for processor 1 and heat sink (C0GMT) for processor 2 2 L-type: heat sink (DFR7M) for processor 1 and heat sink (C0GMT) for processor 2 2
Cables Power and XGMI cable 3 x (6+2)-pin power cables, 3 x 8-pin power cables, 1 x XGMI cable XGMI cable 1 x XGMI cable Power cables 3 x (6+2)-pin power cables, 3 x 8-pin power cables
Foam Mylar foam 1 Mylar foam 1
FL - Full Length, HL - Half Length

You may not need all the components in the kit for GPU installation. For information about riser configurations, see the expansion card installation guidelines section.

NOTE XGMI cable might be installed in the system, if not available install the XGMI cable from the kit for better performance of the system with GPUs installed. See the connect the XGMI cable section to know how to connect the XGMI cable.
NOTE Verify that there is a balanced memory configuration and that all memory channels are populated evenly with memory. At a minimum the first DIMM in each memory channel (white tab) should be populated evenly with memory.

Before you begin, follow the safefy guidelines and before working inside the system instructions.

  1. Remove the standard cooling fans and install the High performance (silver grade) fan or high-performance (gold grade) fan cooling fans.

    See the cooling fan and foam requirement matrix for the cooling fan and foam requirement for different configurations. You can see www.dell.com/poweredgemanuals topic to identify the fans types.

    Table 2. Cooling fan and foam requirement matrixThe table describes cooling fan and foam requirement for the system.
    System configuration Cooling fan Foam requirement
    No backplane High performance (silver grade) fan Not required
    8 x 2.5-inch NVMe High performance (silver grade) fan Not required
    16 x 2.5-inch SAS/SATA High performance (silver grade) fan Not required
    16 x 2.5-inch SAS/SATA + 8 NVMe High-performance (gold grade) fan Required
    16 x 2.5-inch NVMe High-performance (gold grade) fan Required
    8 x 3.5-inch SAS/SATA High performance (silver grade) fan Required
    NOTE 12 x 3.5-inch and 24 x 2.5-inch NVMe system does not support GPU/FPGA card.
  2. Remove the heat sink and install the required L-type heat sink.
    NOTE All GPU/FPGA cards require L-type heat sink and GPU shroud, irrespective of the length.
  3. Remove the air shroud and install the GPU air shroud.
  4. Remove the GPU air shroud top cover.
    NOTE The GPU air shroud top cover is part of the GPU air shroud.
  5. Install the GPU.

    See the riser and GPU slot configuration table to know about the slots for the GPU installation.

    Table 3. Riser and GPU slot configurationThe table describes riser and GPU slot configuration.
    Riser Riser slots Processor System riser configuration Riser/card type GPU slots
    Riser 1 Slot 1 Processor 1 Configuration 3 R1A - FH/FL or HL 2
    Slot 2 Processor 1 Configuration 6 R1C - FH/HL 1, 2
    Riser 2 Slot 3 Processor 1 Configuration 3 or 6 R2A - HH/HL 3, 6
    Slot 6 Processor 2
    Riser 3 Slot 5 Processor 2 Configuration 3 R3A - FH/FL or HL 5
    Configuration 6 R3A - FH/HL
    Riser 4 Slot 7 Processor 2 Configuration 3 R4A - FH/FL or HL 7
    Slot 8 Configuration 6 R4C - FH/HL 7, 8
    FH - Full Height, FL - Full Length, HH - Half Height, HL - Half Length
    NOTE For information about riser slot location on the system board, see the System board jumpers and connectors topic.
  6. If applicable, connect the power cables to the GPU. To know the connectors for GPU on the system board, see the System board jumpers and connectors topic.

    See the GPU power cable matrix to know about the requirement of cable for the GPU.

    Table 4. GPU power cable matrixThe table describes GPU power cable that is required for the GPU installation.
    Category Description Type Vendor Cable Cable quantity
    GPU CRD,GRPHC,NVIDIA,T4,16GB,70W,L HH and HL NVIDIA Not required Not required
    GPU CRD,GRPHC,32GB,225W,M10,PASSIV FH and FL NVIDIA 6 + 2 pin cable 1 piece per GPU riser
    GPU CRD,GRPHC,16GB,250W,V100,FF3.0 FH and FL NVIDIA 8 pin cable 1 piece per GPU riser
    GPU CRD,GRPHC,32GB,250W,V100S,PCIE FH and FL NVIDIA 8 pin cable 1 piece per GPU riser
    GPU CRD,GRPHC,NVIDIA,24GB,RTX6000 FH and FL NVIDIA 8 pin cable 1 piece per GPU riser
    GPU CRD,GRPHC,NVIDIA,48GB,RTX8000 FH and FL NVIDIA 8 pin cable 1 piece per GPU riser
    FPGA Xilinx Snow White Card FH and FL Xilinx 6 + 2 pin cable 1 piece per GPU riser
    HH - Half Height, HL - Half Length, FH - Full Height, FL - Full Length
    NOTE Maximum of three full length GPUs with power cables or a maximum of six half lengths GPUs are supported in a system.
  7. To connect the XGMI cable,
    1. Connect the MB_SL1 and MB_SL2 connectors on the XGMI cable to the J_SL1 and J_SL2 connectors on the system board.
    2. Twist the cable to 180 degrees to connect the MB_SL3 and MB_SL4 to the J_SL3 and J_SL4 connectors on the system board.
    3. Install the cable tie and tighten to fix the cables.
    4. To know the XGMI cable connectors on the system board, see the System board jumpers and connectors topic.
  8. Install the full length expansion card riser or half height expansion card riser. See GPU kit components table for supported GPU risers.
  9. Install the GPU air shroud top cover.
  10. Install the foam on the system cover. To install the foam,
    1. Place the system cover with the System Information Lable (SIL) side facing up.
    2. For easier handling, peel off a small section of the adhesive cover and align the foam with the system cover.
    3. Remove rest of the adhesive cover, and install foam on the system cover.
    4. Press along the length of the foam to ensure that it is firmly affixed to the system cover.
      Figure 1. Installing Mylar foam on the system cover
      This image shows how to install Mylar foam on the system cover.

After installing, follow the after working inside the system instructions.


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