Cpu / Memory / Low Profile Pci Zone; Drive Bay Population; Figure 19. Cpu Air Duct With Air Baffle; Figure 20. Drive Blank - Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory Manual

2BCooling Sub-System Intel® Server System SR2500AL
3.3.3

CPU / Memory / Low Profile PCI Zone

The CPU / memory / low profile PCI zone is the area between the low profile riser card of the
riser assembly and the right chassis wall. In a non-redundant fan configuration, the air flow for
this zone is generated by system fans 1 and 2 of the fan module. In a redundant fan
configuration, the air flow for this zone is provided by system fans 1, 2, 3 and 4. Air is drawn
from the drive bay area, through the fans, directed through the CPU air duct, and out through
ventilation holes on both the back wall and rear side wall of the chassis.
The CPU air duct is used to direct air flow through the processor heat sinks for both single and
dual processor configurations. For single processor configurations, a flexible air baffle is
attached to the air duct as shown in the following diagram.
AF000048

Figure 19. CPU Air Duct with Air Baffle

Operating a single processor configuration without the air baffle installed will result in the
processor over heating and may cause the system to shutdown.
3.4

Drive Bay Population

To maintain the proper air pressure within the system, all hard drive bays must be populated
with either a hard drive, or drive blank.
TP02104

Figure 20. Drive Blank

26 Revision – 1.6
Intel order number D31980-009