Intel AT80604004884AA User Manual

Page of 172
Thermal Specifications
114
Intel® Xeon® Processor 7500 Datasheet, Volume 1
applications. Intel has developed the thermal profile to allow customers to choose the 
thermal solution and environmental parameters that best suit their platform 
implementation. 
The 95W TDP processor (see 
) is representative of a strongly 
volumetrically constrained thermal solution (that is, industry enabled 1U heatsink). In 
this scenario, it is expected that the Thermal Control Circuit (TCC) would only be 
activated for very brief periods of time when running the most power intensive 
applications. Intel has developed the thermal profile to allow customers to choose the 
thermal solution and environmental parameters that best suit their platform 
implementation.
The upper point of the thermal profile consists of the Thermal Design Power (TDP) and 
the associated T
CASE_MAX
 value. It should be noted that the upper point associated with 
the Thermal Profile (x = TDP and y = T
CASE_MAX
 P @ TDP) represents a thermal solution 
design point. In actuality the processor case temperature may not reach this value due 
to TCC activation. The lower point of the thermal profile consists of x = P
_PROFILE_MIN
 
and y = T
CASE_MAX
 @ P
_PROFILE_MIN
. P
_PROFILE_MIN
 is defined as the processor power at 
which T
CASE
, calculated from the thermal profile, is equal to Tcase_max.
Analysis indicates that real applications are unlikely to cause the processor to consume 
maximum power dissipation for sustained time periods. Intel recommends that 
complete thermal solution designs target the Thermal Design Power (TDP) instead of 
the maximum processor power consumption. The Intel® Thermal Monitor feature is 
intended to help protect the processor in the event that an application exceeds the TDP 
recommendation for a sustained time period. For more details on this feature, refer to 
. To ensure maximum flexibility for future requirements, systems should be 
designed to the Flexible Motherboard (FMB) guidelines, even if a processor with lower 
power dissipation is currently planned. The Intel® Thermal Monitor 1 or Intel® 
Thermal Monitor 2 feature must be enabled for the processor to remain within its 
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 I
CC
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 pre-silicon estimates and simulations. These specifications will be 
updated with characterized data from silicon measurements in a future release of this document.
4.
Power specifications are defined at all VIDs found in 
. The Intel® Xeon® processor 7500 series 
may be shipped under multiple VIDs for each frequency.
5.
FMB, or Flexible Motherboard, guidelines provide a design target for meeting all planned processor 
frequency requirements. 
Table 6-1.
Processor Thermal Specifications
Core
Frequency
Thermal Design 
Power (W)
Minimum
T
CASE 
(°C)
Maximum
T
CASE 
(°C)
Notes
Processor Launch to FMB
130
5
See 
1, 2, 3, 4, 5
Processor Launch to FMB
105
5
See 
1, 2, 3, 4, 5
Processor Launch to FMB
95
5
See 
1, 2, 3, 4, 5