Download - Intel
Download - Intel
Download - Intel
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BMC Features to look for...<br />
FAN monitoring & control<br />
<strong>Intel</strong><br />
Developer<br />
Forum<br />
Spring 2001<br />
• Timers or Counters for Tach FAN Speed<br />
monitoring<br />
– Tach FAN speed can be accumulated using a<br />
single counter with a digital multiplexer<br />
– FAN speed is calculated by accumulating counts per<br />
unit time, e.g. 1 second.<br />
– Time to accumulate FAN speeds scales with number of<br />
FANs. I.e. monitoring 8 fans takes 8 seconds.<br />
• Pulse-width Modulator (PWM) or D/A<br />
outputs for FAN Speed control<br />
Copyright © 2001 <strong>Intel</strong> Corporation.<br />
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