Emerson MVME6100 Series Installation And Use Manual page 108

Thermal Validation
The preferred measurement location for a component may be junction, case, or air as specified
in the table. Junction temperature refers to the temperature measured by an on-chip thermal
device. Case temperature refers to the temperature at the top, center surface of the
component. Air temperature refers to the ambient temperature near the component.
Table B-1 Thermally Significant Components
Reference
Designator
U3-U11, U64-
U72
U84, U95
U82, U83
U45, U46
U32
U20
U15
U14, U22
U12
U21
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Generic Description
DDR SDRAM
Gigabit Ethernet Transceiver
Cache
Programmable Logic Device
PCI Bridge
Discovery II
Clock Generator
Clock Buffer
MC7457RX, 1.267 GHz Processor
Tsi148 VME Bridge ASIC
MVME6100 Single Board Computer Installation and Use (6806800D58E)
Max. Allowable
Component Measurement
Temperature (deg. C) Location
70 Air
129 Case
115 Case
70 Air
70 Air
110 Case
85 Air
85 Air
103 Case
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