Intel Server Board S2400BB

Intel® Server Board S2400BB TPS
Revision 2.0
91
11.2 Power Supply DC Output Specification
11.2.1 Output Power / Currents
The following tables define the minimum power and current ratings. The power supply must meet both static
and dynamic voltage regulation requirements for all conditions.
Table 46. 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
Notes:.
1) 12Vstby must provide 4.0A with two power supplies in parallel. The Fan may start to work when stby
current >1.5A
2) Peak combined power for all outputs shall not exceed 850W.
3) Length of time peak power can be supported is based on thermal sensor and assertion of the SMBAlert#
signal. Minimum peak power duration shall be 20 seconds without asserting the SMBAlert# signal at
maximum operating temperature.
11.2.2 Standby Output
The 12VSB output shall be present when an AC input greater than the power supply turn on voltage is applied.
There should be load sharing in the standby rail. Two PSU modules should be able to support 4A standby
current.
11.2.3 Voltage Regulation
The power supply output voltages must stay within the following voltage limits when operating at steady state
and dynamic loading conditions. These limits include the peak-peak ripple/noise. These shall be measured at
the output connectors.
Table 47. Voltage Regulation Limits
PARAMETER
TOLERANCE
MIN
NOM
MAX
UNITS
+12V
- 5% / +5%
+11.40
+12.00
+12.60
V
rms
+12V stby
- 5% / +5%
+11.40
+12.00
+12.60
V
rms