Intel
®
Xeon
®
Processor C5500/C3500 Series and LGA1366 Socket
August 2010
Thermal/Mechanical Design Guide
Order Number: 323107-002US
44
Thermal Specifications
Notes:
1.
These values are specified at V
CC_MAX
for all processor frequencies. Systems must be designed to ensure
the processor is not to be subjected to any static V
CC
and I
CC
combination wherein V
CC
exceeds V
CC_MAX
at
specified ICC. See the loadline specifications in the Datasheet.
2.
Thermal Design Power (TDP) should be used for processor thermal solution design targets. TDP is not the
maximum power that the processor can dissipate. TDP is measured at maximum T
CASE
.
3.
These specifications are based on initial silicon characterization. These specifications may be further
updated as more characterization data becomes available.
4.
Power specifications are defined at all VIDs found in the Datasheet. The Intel
®
Xeon
®
processor C5500/
C3500 series may be shipped under multiple VIDs for each frequency.
5.
FMB (Flexible Motherboard) guidelines provide a design target for meeting all planned processor frequency
requirements.
Notes:
1.
Intel
®
Xeon® processor LC3528 Thermal Profile is representative of a volumetrically constrained platform.
See
for discrete points that constitute the thermal profile.
2.
Implementation of Intel
®
Xeon
®
processor LC3528 nominal and short-term thermal profiles should result
in virtually no TCC activation. Furthermore, utilization of thermal solutions that do not meet this Thermal
Profile will result in increased probability of TCC activation and may incur measurable performance loss.
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. Operation at the Short-Term Thermal Profile for durations
exceeding 360 hours per year violate the processor thermal specifications and may result in permanent
damage to the processor.
Table 6-11. Intel
®
Xeon
®
Processor LC3528 Thermal Specifications
Core
Frequency
Thermal Design
Power
(W)
Minimum
T
CASE
(°C)
Maximum
T
CASE
(°C)
Notes
Launch to FMB
35
5
See
1, 2, 3, 4, 5
Figure 6-6. Intel
®
Xeon
®
Processor LC3528 Thermal Profile
Thermal Profile
40
50
60
70
80
90
100
0
5
10
15
20
25
30
35
Power [W]
Tca
se [
C
]
Short-Term Thermal Profile
Tc = 0.970 * P + 60
Nominal Thermal Profile
Tc = 0.970 * 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