26
Clearance Requirements
Your CPU comes with a heatsink mounted on top. To maintain proper
airflow once the upgrade is installed on the system board, the CPU and
heatsink require certain space clearances.
The clearance above the CPU’s fan/heatsink must be at least 0.4
inches. The clearance on at least 3 of 4 sides of the processor and
heatsink must be at least 0.2 inches. All 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 with heatsink. The tempera-
ture of the air entering the fan/heatsink cannot exceed 45
o
C (113
o
F).
The ambient or room temperature must be below 37
o
C (99
o
F).
Installing A Fan/Heatsink for Cyrix CPUs
If you are using a Cyrix CPU, you must choose a fan/heatsink which is
made for Cyrix processors. Position the fan/heatsink on the CPU such
that the air from the side of the fan/heatsink will flow across the heat
regulators on the system board. See the figure below.