Personal Computer User Manual

Thermally Significant Components
http://www.motorola.com/computer/literature E-3
E
Note An MVME5100 Single Board Computer and an IPMC761 I/O
board was tested in a Motorola lab environment, and it was
verified that the reliability of the components would not be
compromised when operating in a maximum ambient
temperature of 55 degrees C, if the required airflow of 400 LFM
is provided. Customer findings my differ based on specific
environmental and operational characteristics.
Table E-2. Thermally Significant Components on the IPMC761 Module
Reference
Designator? Generic Description
Maximum
Allowable
Component
Temperature
(degrees C)
1
Measurement
Location
U6 Super I/O National Semiconductor 70 Ambient
U3 Zilog (Z0853606 VSC) 70 Ambient
U11 LSI Symbios LSA0564 609-0393602 70 Ambient
U12 Winbond W83C554F 70 Ambient
U14 Lattice ispLSI 1032E 70LT D935B14 125 Case
1
maximum temperature for reliable operation specified by the component manufacturer.