Intel SR9000MK4U - Manual (Page 36)

14 Intel ® Server System SR9000MK4U Product Guide
Cooling Subsystem
The cabinet inlets have hot-swappable, 5+1 redundant fans for cooling.
120 mm x 38 mm fans are used. They provide enough airflow to cool the system
components, processors, memory and chipset, even if one of the six fans fails. The fans
are located across the center of the cabinet. The hard drives and DVD-ROM drive are
cooled by suction. Components on main board, processor and chipset are cooled by the air
flow through the air duct.
The power supply module has non-redundant fans in it for cooling the power supply.
Caution: The chassis top cover must be installed for proper system cooling. Additionally, cooling
fans must be hot-swapped within two minutes. This time period applies only to the time
that the cooling fan is physically removed, not from the time of failure.
Figure 10. Cooling Fan Indicator
A Cooling Fan LED Indicates fan is working normally when LED (green) is on
Indicates fan has a fault when LED is off.
AF001091
A