Dell PowerEdge R760 Installation and Service Manual

Thermal air restrictions

Table 1. Air cooling configurations thermal restriction for AHSRAE A3 and A4This table provides information about ASHRAE A3 and A4 restrictions for air cooling configuration.
ASHRAE	A3/40°C (104°F)	A4/45°C (113°F)
PSU	Two PSUs are required in redundant mode. If there is PSU failure, system performance may be reduced.
PCIe card	Non-Dell qualified peripheral cards and peripheral cards greater than 25 W are not supported.
GPU/FPGA	Not supported
DIMM	128 GB, or greater capacity DIMMs are not supported.
PCIe SSD	Not supported
Front storage	Not supported in 12 x 3.5-inch SAS configuration.
Rear storage	Not supported
Fan	HPR SLVR fans are required.
Processor	≤ 165 W	≤ 125 W
OCP	Supported with 85°C (185°F) active optic cable.	Supported with 85°C (185°F) active optic cable and cards tier ≤4.
BOSS	BOSS-N1 is supported.	BOS-N1 is not supported.

Table 2. Liquid cooling configurations thermal restriction for AHSRAE A3 and A4This table provides information about ASHRAE A3 and A4 restrictions for air cooling configuration.
ASHRAE	A3/40°C (104°F)	A4/45°C (113°F)
PSU	Two PSUs are required in redundant mode. If there is PSU failure, system performance may be reduced.
PCIe card	Non-Dell qualified peripheral cards and peripheral cards greater than 25 W are not supported.
GPU/FPGA	Not supported
DIMM	128 GB, or greater capacity DIMMs are not supported.
PCIe SSD	Not supported
Front storage	Not supported in 12 x 3.5-inch SAS configuration.
Rear storage	Not supported
Fan	HPR SLVR fans are required in 2.5-inch configurations systems.
OCP	Supported with 85°C (185°F) active optic cable.	Supported with 85°C (185°F) active optic cable and cards tier ≤4.
BOSS	BOSS-N1 is supported.	BOSS-N1 is not supported.