Connectors

Internal

USB

Two 4-pin, USB 2.0-compliant

SD

Two internal SD cards dedicated for the

 

hypervisor

 

 

Mezzanine Cards

 

 

 

Mezzanine slots

Four mezzanine PCIe x8 Gen 3 slots supporting

 

dual-port Gb Ethernet, 10 Gb Ethernet, FC8 Fibre

 

Channel, or Infiniband mezzanine cards

 

 

Video

 

 

 

Video type

Matrox G200 integrated with iDRAC

Video memory

8 MB shared with iDRAC application memory

 

 

Battery

 

 

 

NVRAM backup battery

CR 2032 3.0 V Lithium coin cell

Environmental

NOTE: For additional information about environmental measurements for specific system configurations, see dell.com/environmental_datasheets.

Storage temperature

–40 °C to 65 °C (–40 °F to 149 °F) with a maximum

 

temperature gradation of 20 °C per hour.

Standard operating temperature

Continuous operation: 10 °C to 35 °C at 10% to

 

80% relative humidity (RH), with 26 °C max dew

 

point. De-rate maximum allowable dry bulb

 

temperature at 1 °C per 300 m above 900 m (1 °F

 

per 550 ft).

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

5 °C to 40 °C at 5% to 85% RH with 26 °C dew

 

point.

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Image 79
Dell M820 owner manual Connectors Internal