Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 170

Standard operating temperature, Thermal restrictions

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Standard operating temperature Table 39. Standard operating temperature specifications Standard operating temperature Specifications Continuous operation (for altitude less than 950 m or 3117 10°C to 30°C (50°F to 86°F) with no direct sunlight on the equipment. ft) Thermal restrictions • System must operate at temperature below 30°C. • All fans installed in the system must be from the same manufacturer. • Fresh air condition is not supported. • 140W processors are not supported in rear drive configuration. • Non Dell qualified or certified processors are not supported. • LRDIMM is not supported. • 10 GbE / 25 GbE OCPs require PCIe shroud with rear drive configuration if there is no PCIe card installed. • Butterfly without riser configuration cannot support 10GbE / 25GbE OCP because PCIe shroud cannot be installed. • Drive bays should not be in service position for more than 5 minutes because of thermal concerns. When the drive bay is open for more than five minutes, the cooling fans spin at a higher speed to provide extra cooling to the system. Thus system health status changes from the normal to critical state, and system event The BP1 drive bay is kept open for an extended period of time is logged. • GPGPU card is not supported. • Non Dell certified peripheral cards are not supported. • Expansion card and riser installation must follow specific Expansion card installation guidelines. • Mellanox CX-5 dual port 100G - QSPF PCIe adapter cable is restricted to Dell NW QSPF28 Direct attach cables and Finisar 100G 85C optic cables. Non Dell certified cables are not supported. Table 40. Thermal limitation standard Configuration Maximum no.of processors supported Quantity Model Butterfly No riser Configurati on With Butterfly Riser 1 or 2 processors

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Standard operating temperature
Table 39. Standard operating temperature specifications
Standard operating temperature
Specifications
Continuous operation (for altitude less than 950 m or 3117
ft)
10°C to 30°C (50°F to 86°F) with no direct sunlight on the equipment.
Thermal restrictions
•
System must operate at temperature below 30°C.
•
All fans installed in the system must be from the same manufacturer.
•
Fresh air condition is not supported.
•
140W processors are not supported in rear drive configuration.
•
Non Dell qualified or certified processors are not supported.
•
LRDIMM is not supported.
•
10 GbE / 25 GbE OCPs require PCIe shroud with rear drive configuration if there is no PCIe card installed.
•
Butterfly without riser configuration cannot support 10GbE / 25GbE OCP because PCIe shroud cannot be installed.
•
Drive bays should not be in service position for more than 5 minutes because of thermal concerns. When the drive bay is open for
more than five minutes, the cooling fans spin at a higher speed to provide extra cooling to the system. Thus system health status
changes from the normal to critical state, and system event
The BP1 drive bay is kept open for an extended
period of time
is logged.
•
GPGPU card is not supported.
•
Non Dell certified peripheral cards are not supported.
•
Expansion card and riser installation must follow specific Expansion card installation guidelines.
•
Mellanox CX-5 dual port 100G - QSPF PCIe adapter cable is restricted to Dell NW QSPF28 Direct attach cables and Finisar 100G 85C
optic cables. Non Dell certified cables are not supported.
Table 40. Thermal limitation standard
Configuration
Maximum no.of processors
supported
DIMM blanks
Heat Sink
Type of Air
shroud
Fan
Quantity
Model
Butterfly
Configurati
on
No riser
1 or 2 processors
<=140 W
Required
Processor 1 :
Standard heat
sink
Processor 2: 1.5
U HPR heatsink
2U Air
shroud
6 x High
Performa
nce fans
With Butterfly
Riser
Rear
Module
Configurati
on
Right Riser for
1x FH adapter
card
1 or 2 processors
<=125 W
Processor 1 :
Standard heat
sink
Processor 2: 1 U
HPR heatsink
2U Air
shroud for
Rear 3.5" X
2 HDD
Right Riser +
Left Riser for 2x
LP adapter
cards
Table 41. Expansion cards thermal limitation
Thermal Cooling
Tier level
Bus width
Full height Cards
Application
Restriction
(Configuration
Type / PCIe slot)
Half height Cards
Application
Restriction
(Configuration
Type / PCIe slot)
5
x8
-
Rear HDD Module
Configuration /
Slot# 2
QLOGIC 10G Dual
port BT, QLOGIC
25G Dual port SFP
1.
Butterfly Riser
Configuration /
Slot# 3, 4, 5
170
Technical specifications