Thermal Considerations
AM4011
Page 6 - 12
ID 1022-1626, Rev. 1.0
P R E L I M I N A R Y
The following figure shows the thermal zones of a Full-size AM4011.
Figure 6-7: Thermal Zones of the Full-Size AM4011 Module
The following table indicates the deviation of the airflow rate on a Full-size AM4011 module.
Table 6-3:
Deviation of the Airflow Rate on a Full-Size AM4011
VOLUMETRIC
FLOW RATE [CFM]
DEVIATION OF THE AIRFLOW RATE
ZONE B
ZONE D
ZONE C
ZONE D
10
4.0%
-2.86%
-2.86%
1.71%
20
4.0%
-2.29%
-2.86%
1.14%
30
3.82%
-2.29%
-2.64%
1.15%
40
3.87%
-1.87%
-2.44%
0.43%
Note ...
The Full-size AM4011 module has an airflow rate deviation of max. ± 4% of the
average value of the four thermal zones (max. ± 25% is allowed).
Positive deviation means increased airflow.
Negative deviation means decreased airflow.
Note ...
The Full-size AM4011 module provides an open area of 47%. According to the
PICMG AMC.0 Specification, an open area of 20 to 70% perpendicular to the
airflow path is recommended.
open area
I/O Zone
Zone A
Zone B
Zone C
Zone D
32.8
34
34
34
34
