Chipset - Dell PowerEdge R720 Technical Manual

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Two double-wide GPUs require the optional riser 3 with a single x16 slot
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Four single-wide GPUs cannot occupy optional riser 3 with a single x16 slot
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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
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.
PowerEdge R720 and R720xd Technical Guide
23
®
and Dell x16 HIC require one x16 PCIe slot. Each