89
Thermal Specifications
Notes:
1.
Please refer to
Table 6-11
for discrete points that constitute the thermal profile.
2.
Implementation of the Quad-Core Intel® Xeon® Processor L5408
Thermal Profile should result in virtually
no TCC activation. Furthermore, utilization of thermal solutions that do not meet the processor Thermal
Profile will result in increased probability of TCC activation and may incur measurable performance loss.
(See
Section 6.2
for details on TCC activation).
3.
The Nominal Thermal Profile must be used for all normal operating conditions, or for products that do not
require NEBS Level 3 compliance.
4.
The Short-Term Thermal Profile may only be used for short-term excursions to higher ambient operating
temperatures, not to exceed 96 hours per instance, 360 hours per year, and a maximum of 15 instances
per year, as compliant with NEBS Level 3.
5.
Utilization of a thermal solution that exceeds the Short-Term Thermal Profile, or which operates at the
Short-Term Thermal Profile for a duration longer than the limits specified in Note 4 above, do not meet the
processor’s thermal specifications and may result in permanent damage to the processor.
6.
Refer to the Quad-Core Intel® Xeon® Processor L5408 Series in Embedded Applications
Thermal/Mechanical Design Guidelines (TMDG) for system and environmental implementation details.
Figure 6-5. Quad-Core Intel® Xeon® Processor L5408 Thermal Profile
Thermal Profile
40
50
60
70
80
90
0
5
10
15
20
25
30
35
40
Power [W]
T
c
ase [
C
]
Short-Term Thermal Profile
Tc = 0.678 * P + 60
Nominal Thermal Profile
Tc = 0.678 * P + 45
Short-term Thermal Profile may only be used for short term
excursions to higher ambient temperatures, not to exceed 360
hours per year
Table 6-11. Quad-Core Intel® Xeon® Processor L5408 Thermal Profile Table
Power (W)
Nominal T
CASE_MAX
(
°
C)
Short-term T
CASE_MAX
(
°
C)
0
45
60
5
48
63
10
52
67
15
55
70
20
59
74
25
62
77
30
65
80
35
69
84
40
72
87
Summary of Contents for E5420 - CPU XEON QUAD CORE 2.50GHZ FSB1333MHZ 12M LGA771 HALOGEN FREE TRAY
Page 1: ...318589 005 Quad Core Intel Xeon Processor 5400 Series Datasheet August 2008 ...
Page 8: ...8 Quad Core Intel Xeon Processor 5400 Series Datasheet ...
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Page 106: ...Boxed Processor Specifications 106 Figure 8 4 Top Side Board Keepout Zones Part 1 ...
Page 107: ...107 Boxed Processor Specifications Figure 8 5 Top Side Board Keepout Zones Part 2 ...
Page 108: ...Boxed Processor Specifications 108 Figure 8 6 Bottom Side Board Keepout Zones ...
Page 109: ...109 Boxed Processor Specifications Figure 8 7 Board Mounting Hole Keepout Zones ...
Page 110: ...Boxed Processor Specifications 110 Figure 8 8 Volumetric Height Keep Ins ...