![Intel BX80605X3440 - Quad Core Xeon X3440 Скачать руководство пользователя страница 75](http://html1.mh-extra.com/html/intel/bx80605x3440-quad-core-xeon-x3440/bx80605x3440-quad-core-xeon-x3440_reference_2071632075.webp)
Thermal/Mechanical Specifications and Design Guidelines
77
Boxed Processor Specifications
10.4.2
Variable Speed Fan
If the boxed processor fan heatsink 4-pin connector is connected to a 3-pin
motherboard header, it will operate as follows:
The boxed processor fan will operate at different speeds over a short range of internal
chassis temperatures. This allows the processor fan to operate at a lower speed and
noise level, while internal chassis temperatures are low. If internal chassis temperature
increases beyond a lower set point, the fan speed will rise linearly with the internal
temperature until the higher set point is reached. At that point, the fan speed is at its
maximum. As fan speed increases, so do fan noise levels. Systems should be designed
to provide adequate air around the boxed processor fan heatsink that remains cooler
then lower set point. These set points, represented in
and
, can
vary by a few degrees from fan heatsink to fan heatsink. The internal chassis
temperature should be kept below 40 ºC. Meeting the processor's temperature
specification (see
) is the responsibility of the system integrator.
The motherboard must supply a co12 V to the processor's power header to
ensure proper operation of the variable speed fan for the boxed processor. Refer to
for the specific requirements.
Note:
1.
Set point variance is approximately ± 1
°
C from fan heatsink to fan heatsink.
Figure 10-9. Boxed Processor Fan Heatsink Set Points
Table 10-2. Fan Heatsink Set Points
Boxed Processor Fan
Heatsink Set Point
(
º
C)
Boxed Processor Fan Speed
Notes
X
≤
30
When the internal chassis temperature is below or equal to this set point,
the fan operates at its lowest speed. Recommended maximum internal
chassis temperature for nominal operating environment.
Y = 35
When the internal chassis temperature is at this point, the fan operates
between its lowest and highest speeds. Recommended maximum internal
chassis temperature for worst-case operating environment.
-
Z
≥
40
When the internal chassis temperature is above or equal to this set point,
the fan operates at its highest speed.
-
Содержание BX80605X3440 - Quad Core Xeon X3440
Страница 10: ...Introduction 12 Thermal Mechanical Specifications and Design Guidelines...
Страница 26: ...LGA1156 Socket 28 Thermal Mechanical Specifications and Design Guidelines...
Страница 78: ...Component Suppliers 78...
Страница 80: ...Mechanical Drawings 80 Figure B 1 Socket Heatsink ILM Keepout Zone Primary Side for 1U Top...
Страница 81: ...81 Mechanical Drawings Figure B 2 Socket Heatsink ILM Keepout Zone Secondary Side for 1U Bottom...
Страница 87: ...87 Mechanical Drawings Figure B 8 Heatsink Compression Spring...
Страница 88: ...Mechanical Drawings 88 Figure B 9 Heatsink Load Cup...
Страница 89: ...89 Mechanical Drawings Figure B 10 Heatsink Retaining Ring...
Страница 91: ...91 Mechanical Drawings Figure B 12 Heatsink Backplate...
Страница 92: ...Mechanical Drawings 92 Figure B 13 Heatsink Backplate Insulator...
Страница 102: ...Socket Mechanical Drawings 104 Thermal Mechanical Specifications and Design Guidelines...
Страница 106: ...Package Mechanical Drawings 108 Thermal Mechanical Specifications and Design Guidelines...