Cooling fan specifications
The cooling fans are integrated into the system to dissipate the heat generated by the functioning of the system. These
fans provide cooling for the processors, expansion cards, and memory modules.
Your system supports up to six standard or high-performance cooling fans.
Note:
l
High-performance fans can be identified by a blue label on top of the cooling fan.
l
Mixing of standard and high-performance cooling fans is not supported.
l
Each fan is listed in the systems management software, referenced by the respective fan number. If there
is a problem with a particular fan, you can easily identify and replace the proper fan by noting the fan
number on the system.
PSU specifications
The R740xd system supports up to two AC power supply units (PSUs).
The table below are the specifications for 1100 W, 1600 W, 2000 W, and 2400 W power supplies:
Table 9 PSU specifications
PSU
Class
Heat
dissipation
(maximum)
Frequency
Voltage
High line
200v-240 V
Low line 100–
140 V
Current
1100 W AC
Platinum
4100 BTU/hr
50/60 Hz
100–240 V
AC,
autoranging
1100 W
1050 W
12 A–6.5 A
1600 W AC
Platinum
6000 BTU/hr
50/60 Hz
100–240 V
AC,
autoranging
1600 W
800 W
10 A
2000 W AC
Platinum
7500 BTU/hr
50/60 Hz
100–240 V
AC,
autoranging
2000 W
1000 W
11.5 A
2400 W AC
Platinum
9000 BTU/hr
50/60 Hz
100–240 V
AC,
autoranging
2400 W
1400 W
16 A
Note:
Heat dissipation is calculated using the PSU wattage rating.
Note:
This system is also designed to connect to the IT power systems with a phase to phase voltage not exceeding
240 V.
Technical specifications
24
R740xd Owner's Guide
