Intel® Server System R2000WF Product Family Technical Product Specification
46
when measured at the power connectors of the power supply connector during any single point of fail. The
voltage never trips any lower than the minimum levels when measured at the power connector. 12 VSB is
auto-recovered after removing OVP limit.
Table 23. Over voltage protection (OVP) limits, 1300 W power supply
Output Voltage
Minimum (V)
Maximum (V)
+12 V
13.5
14.5
+12 VSB
13.5
14.5
Table 24. Over voltage protection (OVP) limits, 1100 W power supply
Output Voltage
Minimum (V)
Maximum (V)
+12V
13.5
14.5
+12VSB
13.5
14.5
3.3.16.3
Over Temperature Protection (OTP)
The power supply is protected against over temperature conditions caused by loss of fan cooling or
excessive ambient temperature. In an OTP condition, the PSU shuts down. OT warning SMBAlert# assertion
always precedes the OTP shutdown. When the power supply temperature drops to within specified limits,
the power supply restores power automatically, while the 12 VSB remains always on. The OTP circuit has
built-in margin such that the power supply does not oscillate on and off due to temperature recovering
condition. The OTP trip temperature level is at least 5
C higher than SMBAlert over temperature warning
threshold level.
3.3.17
Power Supply Status LED
There is a single bi-color LED to indicate power supply status. The LED operation is defined in Table 25.
Table 25. LED indicators
Power Supply Condition
LED State
Output ON and OK
Solid green
No AC power to all power supplies
Off
AC present/Only 12 VSB on (PS off) or PS in cold redundant state
1 Hz blinking green
AC cord unplugged or AC power lost; with a second power supply in parallel still with AC input power
Solid amber
Power supply warning events where the power supply continues to operate; high temp, high power,
high current, slow fan
1 Hz blinking amber
Power supply critical event causing a shutdown; failure, OCP, OVP, fan fail
Solid amber
Power supply FW updating
2 Hz blinking green
3.4
DC Power Supply Input Specifications (iPC – AXX750DCCRPS)
The following sections provide the DC input specifications for systems configured with DC power supply
modules.
Note
: Product safety regulations pertaining to the use of DC power supplies require that chassis grounding
studs be used for all DC power supply configurations. In the event that chassis grounding studs are not
available on a given server chassis, systems must be configured with two DC power supplies, each connected
to separate ground wires while the system is operational.
3.4.1
DC Input Voltage
The power supply must operate within all specified limits over the following input voltage range.
Summary of Contents for R2000WF series
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