Dell PowerEdge R920 Owner's Manual page 136

Connectors
Internal
USB
Internal Dual SD Module
Video
Video type
Video memory
Expanded Operating Temperature
NOTE: When operating in the expanded temperature range, system performance may be impacted.
NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported on
the LCD and in the System Event Log.
< 10% of annual operating hours
< 1% of annual operating hours
Expanded Operating Temperature Restrictions
136
NOTE: The card slot is available for use only if the
iDRAC7 Enterprise license is installed on your
system.
One 4-pin, USB 2.0-compliant
Two optional flash memory card slots with the internal SD
module
NOTE: One card slot is dedicated for redundancy.
Integrated Matrox G200 with iDRAC7
16 MB shared with iDRAC7 application memory
5 °C to 40 °C at 5% to 85% RH with 26 °C dew point.
NOTE: Outside the standard operating temperature
(10 °C to 35 °C), the system can operate down to 5
°C or up to 40 °C for a maximum of 10% of its annual
operating hours.
For temperatures between 35 °C and 40 °C, de-rate
maximum allowable dry bulb temperature by 1 °C per 175
m above 950 m (1 °F per 319 ft).
–5 °C to 45 °C at 5% to 90% RH with 26 °C dew point.
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 dry bulb temperature by 1 °C per 125
m above 950 m (1 °F per 228 ft).
• Do not perform a cold startup below 5 °C.
• The operating temperature specified is for a
maximum altitude of 3050 m (10,000 ft).
• 130 W (4 core) processor is not supported.
• Redundant power supplies are required.
• Non Dell qualified peripheral cards and/or peripheral
cards greater than 25 W are not supported.