Intel SC5299UP SC5299UPNA Manual Do Utilizador

2.5.2 

Acoustic Requirements 

The declared sound power level of the power supply assembly does not exceed the levels 
specified in the following table. 

Operating Conditions 

Inlet Temperature 

Condition 

% of Maximum Loading 

Condition 

LwAd (BA) 

Maximum 45ºC  100% 

6.5 

Operating 

40

  C 

60% 4.7 

Idle 

35

  C 

40% 4.0 

 

The declared sound power level is measured according to ECMA 74 and reported according to 
ECMA 109. The fan RPM settings for the two operating conditions are determined through 
thermal analysis and/or testing prior to the sound power level measurement. To measure the 
power supply assembly sound power levels corresponding to the two operating conditions, the 
fan in the power supply assembly is powered externally to the two RPM settings. The 45 degree 
C inlet temperature is derived based on standard system ambient temperature assumptions (25 
degrees C and 35 degrees C), typical temperature rise within the system, and thermal impact of 
fan speed control. 

Pure Tones: The power supply assembly does not produce any prominent discrete tones 
determined according to ECMA 74, Annex D.

 

 

2.5.3 

Airflow Requirements 

The power supply incorporates one 80-mm fan for self-cooling and system cooling. The fan 
provides no less than 14 CFM airflow through the power supply when installed in the system. 
The cooling air enters the power module from the non-AC side. 

2.5.4 

Temperature Requirements 

The power supply operates within all specified limits over the T

op

 temperature range. All airflow 

passes through the power supply and not over the exterior surfaces of the power supply. 

Item 

Description 

MIN 

MAX 

Units 

T

op

 Operating 

temperature range. 

0 

45 

  C 

T

non-op

 Non-operating 

temperature range. 

-40 

70 

  C 

Altitude 

Maximum operating altitude 

 

1500 

m