Pentek
The VMEbus specification, when first
introduced in the early 1980s, allowed for power dissipation of
about 35 watts per card, depending upon ambient temperature.
Throughout the 1990s, the trend has been toward packag-ing more
compute power, I/O and storage functions per card cage slot.
Indeed, device technology has ad-vanced to give us lower power
implementation of functions that would not have been possible 10
years ago. This document details techniques for thermal management
in VME systems. Topics we will cover include different VME rack
cooling methods and their effectiveness, temperature measurement,
power distribution, and maximizing air flow.
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