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Possible heat buildup problems
Recommendations
Airflow
Appendix B: Ensuring Adequate Ventilation for Your DigiSuite Cards
Before using your DigiSuite-equipped system, you must ensure adequate
ventilation in your computer. Because some DigiSuite cards consist of
two printed circuit boards sandwiched closely together, the assembled
units produce a significant amount of heat.
You can normally use a single DigiSuite card in a computer system
without forced air ventilation.
Forced air ventilation is extremely important when you use more than
one DigiSuite card. Inadequate ventilation may result in erratic operating
behavior.
The best solution is to provide as much air flow as possible between the
cards; especially between the base and module boards of the card
sandwich.
Adding one fan
q
Position a fan directly facing the end of the DigiSuite cards with the
PCI retainer brackets. You should make sure the fan directs air
between the various circuit boards.
Card guides
q
The fan should have a minimum rating of 40 CFM (CFM stands for
cubic feet of air displaced per minute and is a measurement standard
for fans). An example of a fan that meets this requirement well is the
Sunon model KD1208PTB1, which is a 12 VDC fan with a rating of
42.5 CFM.
q
Make sure to mount the fan as close to the cards as possible. In most
systems, you should be able to place the fan directly behind the card
guide slots as shown in the above diagram.
DigiLinx
Unusable ISA slot
DigiMix
DigiMotion
PCI slots
Video display
card
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