Expanded operating temperature Specications
NOTE: Outside the standard operating temperature (10°C to
35°C), the system can operate down to –5°C or up to 45°C for a
maximum of 1% of its annual operating hours.
For temperatures between 40°C and 45°C, de-rate maximum allowable
temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings maybe reported on the LCD panel and
in the System Event Log.
Expanded operating temperature restrictions
The expanded operating temperature restrictions for the FC640 system are listed here:
• Do not perform a cold startup below 5°C.
• The operating temperature specied is for a maximum altitude of 3048 metres (10,000 feet ).
• NVME drives are not supported.
• AEP DIMMs are not supported.
• 105 W/4 C, 115 W/6 C, 130 W/8 C, 140 W/14 C or higher wattage processor (TDP>140 W) are not supported.
• NEBS SKU processors higher than 85 W are not supported.
• Peripheral cards and /or peripheral cards greater than 25 W, that are not veried by Dell, are not supported.
Thermal Restriction matrix
Table 20. Thermal restrictions matrix
Thermal Design Power (TDP)
for the processor
Core count Processors Ambient restriction
165W 28/26/18 8176; 8170; 6150 C30,
DIMM limit 1*
150W 26/24/20 8164; 8160; 6148 C30
150W 16/12 6142; 6136; 8158 C30
140W 22/18 6152; 6140 C35
140W 14 6132 C30
130W 8 6134 C30
125W 20/16 6138; 6130; 8153 C35
125W 12 6126 C35
115W 6 6128 C30
105W 4 5122; 8156 C30
105W 14/12 5120; 5118 C40** E45***
85W 12/10/8/6/4 4116; 5115; 4114; 4110; 4108; 3106; 3104; 4112 C40** E45***
150W 24 8160T C25
125W 20 6138T C30
18 Technical specications