Power Supply Specifications; Power Timing Requirements; Table 67. Server Board Power Supply Voltage Specification; Table 68. Output Voltage Timing - Intel S3210SHLX - Entry Server Board Motherboard Specification

Intel® Server Boards S3200SH/S3210SH TPS
8.2

Power Supply Specifications

This section provides power supply design guidelines for the server board, including voltage
and current specifications, and power supply on/off sequencing characteristics.

Table 67. Server Board Power Supply Voltage Specification

Parameter
+ 3.3V
+ 5V
+ 12V
- 12V
+ 5VSB
8.2.1

Power Timing Requirements

These are the timing requirements for the power supply operation. The output voltages must
rise from 10% to within regulation limits (Tvout_rise) within 5 to 70ms, except for 5VSB - it is
allowed to rise from 1.0 to 70ms. The +3.3V, +5V and +12V output voltages should start to rise
approximately at the same time. All outputs must rise monotonically. The +5V output needs
to be greater than the +3.3V output during any point of the voltage rise. The +5V output must
never be greater than the +3.3V output by more than 2.25V. Each output voltage shall reach
regulation within 50ms (Tvout_on) of each other during turn on of the power supply. Each output
voltage shall fall out of regulation within 400msec (Tvout_off) of each other during turn off. Refer
to the table below for the timing requirements for the power supply being turned on and off via
the AC input, with PSON held low and the PSON signal, with the AC input applied.
Item
Tvout_rise Output voltage rise time from each main output.
Tvout_on All main outputs must be within regulation of each
other within this time.
T vout_off All main outputs must leave regulation within this
time.
96
Tolerance
- 5% / +5%
- 5% / +5%
- 5% / +5% +11.40
- 10% / +10% -11.40
- 5% / +5%

Table 68. Output Voltage Timing

Description
Design and Environmental Specifications
Min Nom
+3.14 +3.30
+4.75 +5.00
+12.00
-12.00
+4.75 +5.00
MIN
5.0 *
Max Units
+3.46 Vrms
+5.25 Vrms
+12.60 Vrms
-13.08 Vrms
+5.25 Vrms
MAX UNITS
70 * msec
50 msec
400 msec
Revision 1.3