Dell PowerEdge R520 Technical Manual
Download Technical manual of Dell PowerEdge R520 Desktop, Network Storage Server for Free or View it Online on All-Guides.com.
Brand: Dell
Category: Desktop , Network Storage Server , Server , Storage
Type: Technical manual for Dell PowerEdge R520
Pages: 51 (1.49 Mb)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
28 PowerEdge R520 Technical Guide
Figure 7 shows a 750W power supply unit extended from the R520 chassis.
Figure 7. 750W power supply unit
Dell PSUs have achieved Titanium efficiency levels as shown in Table 16.
Table 16. Power supply efficiency
Form factor
Output
Class
Efficiency targets by load
10%
20%
50%
100%
Redundant 86mm
495W AC
Platinum
82.0%
90.0%
94.0%
91.0%
750W AC
Platinum
82.0%
90.0%
94.0%
91.0%
750W AC
Titanium
90.0%
94.0%
96.0%
91.0%
1100W AC
Platinum
89.0%
93.0%
94.5%
92.0%
1100W DC
N/A
80.0%
88.0%
91.0%
88.0%
Cabled
550W AC
Silver
N/A
85.0%
88.0%
85.0%
Thermal and acoustics
Optimized thermal management makes the PowerEdge R520 cool and quiet. Benefiting from smart
cooling fan speed control, the R520 can keep both high performance and good acoustics across a
wide range of ambient temperatures from 10°C to 35°C (50°F to 95°F) and to extended ambient
temperature ranges (see Table 25). Operating environments for the R520 can vary from the data
center to general-use spaces. In a typical configuration, the R520 is suitable for an open office
environment.
Thermal design
The thermal design of the PowerEdge R520 reflects the following:
Multiple sensors are monitored for thermal feedback control: The PowerEdge R520
dynamically controls system cooling fan speed based on responses from all component
temperature sensors, including processors, hard disk drives, DIMMs, storage cards and the inlet
ambient temperature. Thermal control detects and responds to hardware configuration. Thermal
management adjusts cooling according to what the system really needs, resulting in lower fan
power draw and lower acoustical noise levels than servers without such controls.
User-configurable settings: An R520 thermal control design target is to minimize the
contribution of fan power to overall system power. However, with the understanding and