Dell PowerEdge R820 - Removing Memory Modules

49 PowerEdge R820 Technical Guide
Relative humidity
Operating
See Fresh Air for relative humidity information
Storage
5% to 95% at a maximum wet bulb temperature of 33°C (91°F); atmosphere must be non-
condensing at all times
Maximum vibration
Operating
0.26 Grms at 5Hz to 350Hz in all orientations
Storage
1.87 Grms at 10Hz to 500Hz for 15 minutes (all six sides tested)
Maximum shock
Operating
Half sine shock in all operational orientations of 31G +/– 5% with a pulse duration of 2.6ms
+/– 10%
Storage
Half sine shock on all six sides of 71G +/– 5% with a pulse duration of 2ms +/–10%; square
wave shock on all six sides of 27G with velocity change at 235 in/sec or greater
Altitude
Operating
–15.2m to 3048m (–50 ft to 10,000 ft)
Storage
–15.2m to 12,000m (–50 ft to 39,370 ft)
Airborne contaminant level
Class G1 or lower as defined by ISA-S71.04-1985
Power supply specifications
Table 28 lists power supply specifications for the PowerEdge R820.
Table 28. Power supply specifications
Specification
1100W DC
1100W AC
750W AC
Titanium
750W AC
Platinum
Current consumption
32A
12–6.5A
10–5A
10–5A
Supply voltage
-48V to -60V DC
100–240VAC
1
200–240VAC
100–240VAC
1
Frequency
N/A
50/60Hz
50/60Hz
50/60Hz
Heat dissipation
(BTU/hr max)
4416
4100
2843
2891
Maximum inrush
current
2
55A
55A
55A
55A
1
Auto-ranging
2
Under typical line conditions and over the entire system ambient operating range, the inrush current may reach 55A per
power supply for 10ms or less.