Intel
®
Xeon
®
Processor C5500/C3500 Series and LGA1366 Socket
August 2010
Thermal/Mechanical Design Guide
Order Number: 323107-002US
66
Quality and Reliability Requirements
8
Quality and Reliability
Requirements
8.1
Use Conditions
Intel evaluates reliability performance based on the use conditions (operating
environment) of the end product by using acceleration models.
The use condition environment definitions provided in
and
based on speculative use condition assumptions, and are provided only as examples.
Table 8-1.
Server Use Conditions Environment (System Level)
Use Environment
Speculative Stress
Condition
Example Use
Condition
Example 7-Yr
Stress Equiv.
Example 10-Yr
Stress Equiv.
Slow small internal
gradient changes due to
external ambient
(temperature cycle or
externally heated).
Fast, large gradient on/
off to max operating
temp. (power cycle or
internally heated
including power save
features)
Temperature Cycle
Δ
T = 35 - 44° C
(solder joint)
550-930 cycles
Temp Cycle Q
(-25° C to
100° C)
780-1345 cycles
Temp Cycle Q
(-25° C to
100°C )
High ambient moisture
during low-power state
(operating voltage)
THB/HAST
T = 25 –30° C
85% RH
(ambient)
110-220 hrs at
110° C 85% RH
145-240 hrs at
110° C 85% RH
High operating
temperature and short
duration high
temperature exposures
Bake
T = 95 - 105° C
(contact)
700 – 2500 hrs at
125° C
800 – 3300 hrs at
125° C