Owners Manual

Thermal restrictions
Following table lists the conguration required for ecient cooling.
Table 30. Thermal restrictions conguration
Conguration Number of
processor
s
Heatsink Processor/DIMM
blank
DIMM
blanks
Type of air
shroud
Fan
XC740xd Series 1 One 1U standard heat sink
for CPU ≤ 125 W
Required Not
required
Standard Four standard
fans and one
blank to cover
two fan slots
One 2U standard heat sink
for CPU > 125 W
XC740xd Series 2 Two 1U standard heat sink
for CPU ≤ 125 W
Not required Not
required
Standard Six standard
fans
Two 2U standard heat sink
for CPU > 125 W
XC740xd Series
with mid bay
1 One 1U high performance
heat sink
Required Required Not required Six high
performance
fans
XC740xd Series
with mid bay
2 Two 1U high performance
heat sink
Not required Required Not required Six high
performance
fans
XC740xd
Serieswith GPU
2 Two 1U high performance
heat sink
Not required Not
required
GPU air shroud Six high
performance
fans
Ambient temperature limitations
The following table lists congurations that require ambient temperature less than 35°C.
NOTE
: The ambient temperature limit must be adhered to ensure proper cooling and to avoid excess CPU throttling, which may
impact system performance.
Table 31. Conguration based ambient temperature restrictions
System Backplane CPU Thermal
Design Power
(TDP)
CPU heat sink Fan type GPU Ambient
restriction
XC740xd Series 24 x 2.5 inch
SATA/NVMe with
adapter HBA330
150 W/8 core,
165 W/12 core,
200 W, 205 W
1U high
performance
High performance
fan
≥1 double-width/
single-width
30°C
Particulate and gaseous contamination specications
The following table denes the limitations that help avoid any equipment damage or failure from particulate and gaseous contamination. If
the levels of particulate or gaseous pollution exceed the specied limitations and result in equipment damage or failure, you may need to
rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer.
30
Technical specications