Over-Temperature Protection (Otp); 2.10 Dc Output Specification; Output Power / Currents; Standby Output / Standby Mode - Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory Manual

1BPower Sub-System
2.9.3

Over-Temperature Protection (OTP)

The power supply will be protected against over-temperature conditions caused by loss of fan
cooling or excessive ambient temperature. In an OTP condition the power supply will shutdown.
When the power supply temperature drops to within specified limits, the power supply shall
restore power automatically, while the 5 Vsb remains constantly 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 a temperature recovery condition. The power supply shall alert the
system of the OTP condition via the power supply FAIL signal and the PWR LED.

2.10 DC Output Specification

2.10.1

Output Power / Currents

The following table defines power and current ratings for this 750W continuous (860W pk)
power supply in 1+0 or 1+1 redundant configuration. The combined output power of both
outputs shall 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 shall be able to supply the listed peak currents and power for a minimum of 10 seconds.
Outputs are not required to be peak loaded simultaneously.
MAX Load
MIN DYNAMIC Load
MIN STATIC Load
PEAK Load
Max Output Power (continuous)
Peak Output Power
2.10.2

Standby Output / Standby Mode

The 5Vsb output shall be present when an AC input greater than the power supply turn-on AC
voltage is applied. Applying an external 5.25V to 5Vsb shall not cause the power supply to shut
down or exceed operating limits. When the external voltage is removed the voltage shall return
to the power supplies operating voltage without exceeding the dynamic voltage limits.
18

Table 11. Over-Voltage Protection (OVP) Limits

Output Voltage OVP MIN (V)
+3.3V
+5V
+5VSB
-12V -13.3
+12V1/2/3/4 13.0
62.0A
3.0A
0.0A
70.0A(12s min)
12V x 62A = 744W max
12V x 70A = 840W pk
Intel order number D31980-009
Intel® Server System SR2500AL
OVP MAX (V)
3.9 4.5
5.7 6.5
5.7 6.5
-14.5
14.5
+12V
3.0A
0.1A
0.1A
5.0A (0.5s min @ turn-on)
5V x 3A = 15W max
5V x 5A = 25W pk
+5Vsb
Revision – 1.6