DFI G586VPA User Manual page 30

Green PCI/ISA System Board
Clearance Requirements
The 3.3V Pentium Processor comes with a heat sink
mounted on top. To maintain proper airflow once the
upgrade is installed on the system board, the processor
and heat sink require certain space clearances.
The clearance above the processor's fan/heat-sink must
be at least 0.4 in. The clearance on at least 3 of 4 sides
of the processor must be at least 0.2 in. The cables (for
floppy drive, hard drive CD-ROM, etc.) must be routed
clear of the CPU and its airspace.
Fan Exhaust
The CPU must be kept cool by using a fan exhaust
configuration in connection with the heatsink. The
temperature of the air entering the fan/heatsink cannot
exceed 45°C.
In order to provide proper airflow to the CPU, all
movable obstructions (power supply cables, cards, floppy
disk cables) must be clear of the CPU heatsink/fan
component. Please see the clearance requirements above
for more information.
Temperature Rating
The ambient or room temperature must be below 37°C
(99°F) for a system installed with the 3.3V Pentium
Processor.
2-20 u Installation Overview