Intel SC5299WS User Manual

Pin 

Signal 

18 AWG Color 

4 COM 

Black 

5 +12V2 

Green 

 

2.2.4.9 

Output Power/Currents 

The following table defines power and current ratings for the 550-W power supply. The 
combined output power of all outputs does not exceed the rated output power. The power 
supply meets both static and dynamic voltage regulation requirements for the minimum loading 
conditions. 

Output Voltage 

Minimum 

Continuous 

Maximum 

Continuous 

Peak 

+3.3V 1.0A 

24A   

+5V 2A 

24A  

+12V1 0.5A 40A 48A 

+12V2 1.0A 16A 

22A 

(500msec) 

–12V 0A 

0.5A  

+5VSB 0.1A 3A  3.5A 

Notes:  
1.  Maximum continuous total output power will not exceed 550 W. 
2.  The maximum continuous total output power capability increases at lower ambient temperatures at a rate of 

3.3W/degree C up to 600 W with a 30 degrees C ambient temperature. 

3.  Maximum continuous load on the combined 12V output will not exceed 40A at 45 degrees C, ramping up to 

44 A at 30 degrees C. 

4.  Peak load on the combined 12V output will not exceed 48 A. 
5.  Peak total DC output power will not exceed 600 W. 
6.  Peak power and current loading is supported for a minimum of 12 seconds 
7.  Combined 3.3V and 5V power should not exceed 160 W.  

 

2.2.4.10 

Power On Loading 

The power supply operates at lighter load conditions when the system first powers on. Under 
these conditions, the voltage regulation limits are relaxed. Power on loading and voltage 
regulation requirements are defined in the following tables. 
 
Time duration is 1 second during power on.