Technical Product Specification

Intel® Server System SR2600UR TPS Power Subsystem
Revision 1.8 Intel order number E45274-011
25
3.10 DC Output Specification
3.10.1 Output Power/Currents
The following table defines power and current ratings for this 750 W continuous (860 W pk)
power supply in 1+0 or 1+1 redundant configuration. The combined output power of both
outputs does not exceed the rated output power. The power supply must meet both static and
dynamic voltage regulation requirements for the minimum loading conditions. Also, the power
supply is able to supply the listed peak currents and power for a minimum of 10 seconds.
Outputs are not required to be peak loaded simultaneously.
Table 17. Output Power and Current Ratings
+12 V
+5 VSB
Maximum Load
62.0 A
3.0 A
Minimum Dynamic Load
3.0 A
0.1 A
Minimum Static Load
0.0 A 0.1 A
Peak Load
70.0 A (12 seconds
minimum)
5.0A (0.5 seconds minimum @
turn-on)
Maximum Output Power (continuous)
12 V x 62 A = 744 W
maximum
5 V x 3 A = 15 W maximum
Peak Output Power
12 V x 70 A = 840 W pk
5 V x 5 A = 25 W pk
3.10.2 Standby Output/Standby Mode
The 5 VSB output is present when an AC input greater than the power supply turn-on AC
voltage is applied. Applying an external 5.25 V to 5 VSB does not cause the power supply to
shut down or exceed operating limits. When the external voltage is removed, the voltage
returns to the power supplies’ operating voltage without exceeding the dynamic voltage limits.
3.11 Cold Redundant Power Supply Module
3.11.1 Overview
A cold redundant power sub-system maintains highest efficiency possible over any system
loading condition by controlling how many power supplies are delivering power to the system. It
does this by powering off any power supplies that are not needed to support the loading
condition. Cold redundancy shall also protect against any failure of an active or cold standby
power supply so that the system voltages maintain voltage regulation requirements under any
line, temperature, and loading condition.
Each power supply module is identical. It operates in active or cold standby mode depending
upon the location it is plugged into on the power distribution board.