Intel® Server Board S2600CW Family TPS
Power Supply Specification Guidelines
Revision 2.4
127
Table 48. AC Line Surge Transient Performance
AC Line Surge
Duration
Surge
Operating AC Voltage
Line Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltages
50/60Hz
No loss of function or performance
0 to ½ AC
cycle
30%
Mid-point of nominal AC
Voltages
50/60Hz
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
Loading
100% of Maximum
50% of Maximum
20% of Maximum
10% of Maximum
Minimum Efficiency
91%
94%
90%
82%
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
Parameter
Min
Max
Peak 2, 3
Unit
12V main
0.0
62.0
70.0
A
12Vstby 1
0.0
2.1
2.4
A
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.
