NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on the LCD
panel and in the System Event Log.
Expanded operating temperature restrictions
● Do not perform a cold startup below 5°C.
● The operating temperature specified is for a maximum altitude of 3050 m (10,000 ft).
● 150 W/8 C, 165 W/12 C and higher wattage processor(TDP>165 W) are not supported.
● Redundant power supply unit is required.
●
Non-Dell qualified peripheral cards and/or peripheral cards greater than 25 W are not supported.
● PCIe SSD is not supported.
● 3DX Point DIMMs and NVDIMMs-N are not supported.
● Rear installed drives are not supported
● Tape backup unit is not supported.
Thermal restrictions
The following table lists the configurations required for efficient cooling.
Table 29. Thermal restrictions configuration
Configuration Number of
processor
s
Heatsink Processor/
DIMM blank
DIMM blanks Maximum
number of
DIMM blanks
Fan
XC640 Series (2.5
inch hard drives x 10)
1 Two 1U 2-pipe
heat sink for
CPU=200/205 W
and 150 W/165 W
FO*
Not required Required 22 blanks Eight high
performance fans
XC640 Series
(3.5 inch hard drives
x 4)
1 One 1U standard
heat sink for CPU
≤ 165 W
No Required for
processor 1
11 blanks Five standard
fans
One 1U 2-pipe
heat sink for
CPU=150 W/165
W FO*
One 1U 2-pipe
heat sink for
CPU=200/205 W
2 Two 1U standard
heat sink for CPU
≤ 165 W
Two 1U 2-pipe
heat sink for
CPU=150 W/165
W
Yes Eight high
performance fans
Two 1U 2-pipe
heat sink for
CPU=200/205 W
No Required 22 blanks Eight standard
fans
Eight high
performance fans
NOTE: *165 W and 150 W frequency optimized includes Intel Xeon Gold 6146 and 6144 processors.
Technical specifications 25
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