S2600GZ and S2600GL

Table Of Contents
Intel® Server Board S2600GZ/GL TPS Power Supply Specification Guidelines
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 54. 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 55. 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
11.2.4
Dynamic Loading
The output voltages shall remain within limits specified for the step loading and capacitive loading specified in
the table below. The load transient repetition rate shall be 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 MIN load to the MAX load conditions.
Table 56. Transient Load Requirements
Output
Step Load Size
Load Slew Rate
Test capacitive Load
+12VSB
1.0A
0.25 A/µsec
20 µF
+12V
60% of max load
0.25 A/µsec
2000 µF
Note: For dynamic condition +12V min loading is 1A
.
Revision 2.4
101