Technical Product Specification

Intel
®
Server System R1000EP Product Family TPS Power Subsystem
Revision 2.0 Intel Order Number G67599-003 21
Table 12. 600 Watt Power Supply Overload Limits
Output Voltage
Continuous Load
Current Limit MIN
Current Limit MAX
+12V1
36A
41A
+12V2
18.2A
20A
+12V3
18.2A
20A
+5V
5.5A
10A
+3.3V
15.5A
20A
-12V
4A
+5VSB
4.5A
3.6.11 Over-voltage Protection (OVP)
Each output shall have individual OVP protection circuits built in and it shall be locally sensed.
The PSU shall shutdown and latch off after an over voltage condition occurs. The output
voltages are measured at the harness connectors. The voltage shall never exceed the
maximum levels when measured at the power pins of the output harness connector during any
single point of fail. The voltage shall never trip any lower than the minimum levels when
measured at the power pins of the connector.
Table 13. Over Voltage Protection (OVP) Limits
Output Voltage
OVP MIN (V)
OVP MAX (V)
+3.3V
3.7
4.5
+5V
5.7
6.5
+12V1/+12V2/+12V3
13.3
15.6
-12V
-13.3
-15.6
+5VSB
5.7
6.5
3.6.12 Over-temperature Protection (OTP)
The power supply shall be protected against over temperature conditions caused by loss of fan
cooling or excessive ambient temperature. In an OTP condition the PSU will shut down. When
the power supply temperature drops to within specified limits, the power supply shall restore
power automatically, while the +5VSB remains always on. The OTP trip level shall have a
minimum of 4°C of ambient temperature hysteresis, so that the power supply will not oscillate on
and off due to temperature recovery condition.