24
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°C (113°F).
The ambient or room temperature must be below 37°C (99°F).
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 fan/heatsink component in accordance with the space clearance
discussed in the Clearance Requirements section of this manual.
Jumper Settings for the PCI Slot
Jumpers JP13 and JP21
CPU External Clock Speed for the PCI Slot
Set Jumpers JP13 and JP21 according to the type of CPU installed on
the system board.
1
2
3
3
2
1
JP21: 1-2 On
JP13: 1-2 On
CPU external clock speed <= 33MHz
(Default)
1
2
3
3
2
1
JP21: 2-3 On
JP13: 2-3 On
CPU external clock speed = 40MHz
