Gpu Support - Dell External R720 T Technical Manual

Because GPUs demand high power, each GPU has up to two power connectors for power delivery.
The GPU enablement kit is required for internal GPU installation. The kit contains the power cables
and other items to enable GPU support on the R720 chassis.
Due to the high power consumption of GPUs, there is an ambient temperature restriction of 30
maximum system inlet temperature to ensure adequate system cooling the R720 has one or more
GPUs installed. Note that this temperature is less than the standard environmental specification of
o
35 C.
The following GPU restrictions for the R720 are enforced by the order validator:

Requires two processors

Processors must be 115W or less

Maximum of two double-wide GPUs (since they take up two slots)

Maximum of four single-wide GPUs

All GPUs must be same type and model

GPUs require a redundant 1100W power supply and GPU enablement kit

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
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.
For a list of supported GPUs, see Table 18 and Dell.com/PowerEdge/GPU.
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.
The Intel C600 chipset is implemented on the PowerEdge R720 and R720xd. For more information,
visit Intel.com.
PowerEdge R720 and R720xd Technical Guide
22
®
and Dell x16 HIC require one x16 PCIe slot. Each
o
C