DFI G586OPC/E, User Manual

Page: 54 / 102

PCI/ISA System Board
46
Clearance Requirements
The 3.3V Pentium Upgrade 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 sink require certain space clearances.
The clearance above 3.3V Pentium Upgrade 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. The ambient or room temperature must be
below 37°C (99°F) for a system installed with the 3.3V
Pentium Upgrade Processor.
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 in accordance with the space clearance
discussed in the CPU installation section of this manual.