Intel® Server Board S2600CW Family TPS  Power Supply Specification Guidelines 
Revision 2.4     
Table 48. AC Line Surge Transient Performance 
No loss of function or performance 
cycle 
Voltages 
No loss of function or performance 
 
10.2.2.7  Power Recovery 
The power supply shall recover automatically after an AC power failure. AC power failure is 
defined to be any loss of AC power that exceeds the dropout criteria. 
10.2.3  Efficiency 
The following table provides the required minimum efficiency level at various loading 
conditions. These are provided at three different load levels; 100%, 50%, 20%, and 10%. 
Output shall be loaded according to the proportional loading method defined by 80 Plus in 
Generalized Internal Power Supply Efficiency Testing Protocol Rev. 6.4.3. This is posted at 
http://efficientpowersupplies.epri.com/methods.asp
. 
Table 49. Silver Efficiency Requirement 
 
The power supply passes with enough margins to make sure that all power supplies meet 
these efficiency requirements in production. 
10.2.4  DC Output Specification 
10.2.4.1  Output Power/Currents 
The following table defines the minimum power and current ratings. The power supply meets 
both static and dynamic voltage regulation requirements for all conditions. 
Table 50. Minimum Load Ratings 
 
10.2.4.2  Standby Output 
The 12VSB output is present when an AC input greater than the power supply turn on voltage 
is applied.