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B-2
Computer Group Literature Center Web Site
Thermal Validation
B
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
Generic Description
Max. Allowable
Component
Temperature
(deg. C)
Measurement
Location
U3-U11,
U64-U72
DDR SDRAM
70
Air
U84, U95
Gigabit Ethernet Transceiver
129
Case
U82, U83
Cache
115
Case
U45, U46
Programmable Logic Device
70
Air
U32
PCI Bridge
70
Air
U20
Discovery II
110
Case
U15
Clock Generator
85
Air
U14, U22
Clock Buffer
85
Air
U12
MC7457RX, 1.267 GHz Processor
103
Case
U21
Tsi148 VME Bridge
ASIC
100