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BMC Features to look for…<br />

Built-in Analog-to-Digital<br />

<strong>Intel</strong><br />

Developer<br />

Forum<br />

Spring 2001<br />

• Need for at least 7 voltages is common<br />

– E.g. Processor 1 & 2, 3.3V, 3.3Vaux, 5V, 12V, -12V<br />

• Many server systems require more<br />

– >2 processors, SCSI terminations, bus, cache/chipset, etc.<br />

– 19 or more is not uncommon!<br />

• Conversion rate usually not an issue...<br />

– A single converter with analog multiplexing works well<br />

• But accuracy, tolerance, and resolution are<br />

– Recommend at least 8-bit resolution, +/-1 bit tolerance, and<br />

+/-1% accuracy<br />

Low accuracy paid for with system margins<br />

Copyright © 2001 <strong>Intel</strong> Corporation.<br />

Page 22

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