Dell PowerEdge R7525 Installation and Service Manual

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.

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.

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
   PowerEdge Manuals topic to identify the fans types.
   

   Table 2. Cooling fan and foam requirement matrixThe table describes the cooling fan and foam requirements 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:The 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 an 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 more 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 the 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 cables for the GPU.
     

   Table 4. GPU power cable matrixThe table describes the 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:A 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.

       

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