Sensor Based Thermal Specification Design Guidance
74
Thermal/Mechanical Specifications and Design Guidelines
Notes:
Notes:
1.
CA
at “DTS = T
control
” is applicable to systems that has Internal Trise (Troom temperature to Processor
cooling fan inlet) of less than 10 C. In case your expected Trise is grater than 10 C a correction factor
should be used as explained below. For each 1 deg C Trise above 10C, the correction factor CF is defined as
CF= 1.7 / Processor_TDP.
2.
Example, For A Chassis Trise assumption of 12 C for a 95W TDP processor.
CF = 1.7/95W = 0.018/C
For Trise > 10 C
CA at Tcontrol = Value listed in Column_2 - (Trise - 10) * CF
CA = 0564 - (12 - 10) * 0.018 =0.528 C/W
In this case the fan speed should be set slightly higher equivalent to YCA=0.528C/W
Figure 8-8. DTS 1.1 Definition Points
Table 8-1.
DTS 1.1 Thermal Solution Performance above T
CONTROL
Processor TDP
CA
at
DTS = T
CONTROL
1,2
CA
at
DTS = -1
At System
ambient_max=
40C
CA
at
DTS = -1
At System
ambient_max =
45C
CA
at
DTS = -1
At System
ambient_max =
50C
95W
0.564
0.343
0.291
0.238
65W
0.755
0.448
0.371
0.294
45W
1.165
0.662
0.551
0.440
35W
1.361
0.714
0.571
0.429
Содержание 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - THERMAL MECHANICAL S AND DESIGN GUIDELINES 01-2011
Страница 12: ...Introduction 12 Thermal Mechanical Specifications and Design Guidelines...
Страница 36: ...Independent Loading Mechanism ILM 36 Thermal Mechanical Specifications and Design Guidelines...
Страница 62: ...PECI Interface 62 Thermal Mechanical Specifications and Design Guidelines...
Страница 88: ...ATX Reference Thermal Solution 88 Thermal Mechanical Specifications and Design Guidelines...
Страница 102: ...Boxed Processor Specifications 102 Thermal Mechanical Specifications and Design Guidelines...
Страница 118: ...Mechanical Drawings 118 Thermal Mechanical Specifications and Design Guidelines Figure B 13 ILM Shoulder Screw...
Страница 120: ...Mechanical Drawings 120 Thermal Mechanical Specifications and Design Guidelines...
Страница 126: ...Socket Mechanical Drawings 126 Thermal Mechanical Specifications and Design Guidelines...
Страница 130: ...Package Mechanical Drawings 130 Thermal Mechanical Specifications and Design Guidelines...