Dell R720 Specifications download pdf (Page 23)

23 PowerEdge R720 and R720xd Technical Guide

 Two double-wide GPUs require the optional riser 3 with a single x16 slot

 Four single-wide GPUs cannot occupy optional riser 3 with a single x16 slot

 Dell PowerVault RD1000 backup unit not supported

External GPU support

For external GPU support, the R720 connects to the PowerEdge C410x through a host interface

card (HIC) and an iPass cable. Both the NVIDIA

and Dell x16 HIC require one x16 PCIe slot. Each

HIC supports up to four GPUs maximum due to internal memory allocation for the PCIe subsystem.

More than four GPUs per HIC attached to the server will impact performance of other PCIe

devices. The R720 supports up to eight GPUs in the PowerEdge C410x external chassis. For a list of

supported GPU HICs, see Table 18. For more information about the PowerEdge C410x, see

Dell.com/PowerEdgeC.

Supported GPU cards

For a list of supported GPUs, see Table 18 and Dell.com/PowerEdge/GPU.

Operating system support for GPUs

Some operating systems have not been validated to support GPUs. See Table 24 and Table 25 for

more information on operating system support of GPUs.

Chipset

The PowerEdge R720 and R720xd servers use the Intel C602 chipset. For more information, visit

Intel.com.

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Dell R720 Specifications Page 23