Table 8. Fan numbering
PowerEdge systems
Fan numbering
XE7100 - Chassis
1–6
XE7440 (Single sled)
7–12 , 13-18
XE7420 (Dual sleds)
Node_A: 7–12 , Node_B: 13-18
NOTE:
The reading and reporting of fan sensors are in the order of chassis fans, Node_A and Node_B fans, and sensors
numbering is 1-6, 7-12 and 13-18 respectively.
●
For XE7420, the sled 1/ node 1 reports six chassis fan sensors (1-6) and sled 1 fan sensors (7-12).
●
For XE7420, the sled 2/ node 2 reports six chassis fan sensors (1-6) and sled 2 fan sensors (13-18).
Cooling fan-mapping
Table 9. Cooling fan-mapping
Fan name and configuration
iDRAC sensor number
(Chassis) FAN 1
38
FAN 2
39
FAN 3
3A
FAN 4
3B
FAN 5
3C
FAN 6
3D
(Node_A) FAN 7
3E
FAN 8
3F
FAN 9
40
FAN 10
41
FAN 11
42
FAN 12
43
(Node_B) FAN 13
44
FAN 14
45
FAN 15
46
FAN 16
47
FAN 17
E2
FAN 18
E3
NOTE:
All the numbering are embossed on each fan.
Thermal recommendations
●
After one fan rotor failure, you must estimate the fan service time while the system is under steady state.
●
It is recommended to limit the minimum service time under 500 seconds.
NOTE:
For PSU and hard drive no limit is required for the service time.
Technical specifications
75