Dell PowerEdge R810 Specifications download pdf (Page 47)

47 PowerEdge R820 Technical Guide

Table 29 details the environmental specifications for the R820. For the most up-to-date information,

see the

Dell PowerEdge R820 Systems Owner’s Manual

and the

Dell PowerEdge R820 Getting

Started Guide

on Support.Dell.com/Manuals. For additional information about environmental

measurements for specific system configurations, see www.dell.com/environmental_datasheets.

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 300m above 900m (1°F per 550 ft).

Expanded

operation

When operating in the expanded temperature range, system performance may be

impacted. 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.

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 175m above 950m (1°F per 319 ft).

≤ 1% of annual operating hours: –5°C to 45°C at 5% to 90% RH with 26°C dew point.

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 125m above 950m (1 °F per 22 ft).

Expanded operation restrictions:

 Maximum 95W processors (two or four processors)

 LRDIMMs not supported

 Express Flash drives not supported

 GPU not supported

 Maximum 8 hard drives (no dual PERC)

 x8 backplane only (restrict 2nd x8, x16 or x4 backplanes)

 Requires two redundant power supplies, either 750W or 1100W

 PCIe slot 1 and slot 2 cannot be populated

Storage

–40

C to 65

C (-40

F to 149

F) with a maximum temperature gradation of 20

C per hour

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