Technical product specification

Intel
®
Server Board S2600CP and Server System P4000CP TPS Intel
®
Server System P4000CP Power System Options
Revision 1.8
Intel order number G26942-005
147
13.3.4.2 Standby Output
The 12VSB output is present when an AC input greater than the power supply turn on voltage is
applied.
13.3.4.3 Voltage Regulation
The power supply output voltages 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 101. 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
13.3.4.4 Dynamic Loading
The output voltages remains within limits specified for the step loading and capacitive loading
specified in the table below. The load transient repetition rate is tested between 50Hz and 5kHz
at duty cycles ranging from 10%-90%. The load transient repetition rate is only a test
specification. The  step load may occur anywhere within the minimum load to the maximum
load conditions.
Table 102. Transient Load Requirements
Output
 Step Load Size
(See note 2)
Load Slew Rate
Test capacitive Load
+12VSB
1.0A
0.25 A/sec
20 F
+12V
60% of max load
0.25 A/sec
2000 F
Note:
For dynamic condition +12V min loading is 1A.
13.3.4.5 Capacitive Loading
The power supply is stable and meets all requirements with the following capacitive loading
ranges:
Table 103. Capacitive Loading Conditions
Output
Min
Max
Units
+12VSB
20
3100
F
+12V
500
25000
F
13.3.4.6 Grounding
The output ground of the pins of the power supply provides the output power return path. The
output connector ground pins are connected to the safety ground (power supply enclosure).
This grounding is well designed to ensure passing the maximum allowed Common Mode Noise
levels.