NEC MH4000 User Manual page 41

2-26
Features
Table 2-6. Fan Redundant Pairs
Redundant
Pair
1 CPU Front and CPU Rear
2 Option Board (dual fan)
3 Hard Disk Drive Upper and Hard Disk Drive Lower
Figure 2-10. The Front Fan Features
Option Board
Fan Module
(2 Fans)
Fan Modules
CPU Front Fan Module
(1 Fan)
Fan LED
Fan LED