Technical Product Specification

System Power Sub-system Intel® Server System P4000IP and Intel® Workstation System P4000CR Family TPS
Revision 1.2 Intel order number G38159-002
49
Table 45. SMBAlert# Signal Characteristics
Signal Type (Active Low)
Open collector/drain output from power supply.
Pull-up to VSB located in system.
Alert# = High
OK
Alert# = Low
Power Alert to system
MIN
MAX
Logic level low voltage, Isink=4 mA
0 V
0.4 V
Logic level high voltage, Isink=50 A
3.46 V
Sink current, Alert# = low
4 mA
Sink current, Alert# = high
50 A
Alert# rise and fall time
100 s
2.2.7 Thermal CLST
The power supply shall assert the SMBAlert signal when a temperature sensor crosses a
warning threshold. Refer to the Intel
®
Common Hardware and Firmware Requirements for
CRPS Power Supplier for detailed requirements.
2.2.8 Power Supply Diagnostic “Black Box”
The power supply shall save the latest PMBus data and other pertinent data into nonvolatile
memory when a critical event shuts down the power supply. This data shall be accessible from
the SMBus interface with an external source providing power to the 12Vstby output.
Refer to Intel
®
Common Hardware and Firmware Requirements for CRPS Power Supplier for
detailed requirements.
2.2.9 Firmware Update
The power supply shall have the capability to update its firmware from the PMBus interface
while it is in standby mode. This FW can be updated when in the system and in standby mode
and outside the system with power applied to the 12Vstby pins.
Refer to the Intel
®
Common Hardware and Firmware Requirements for CRPS Power Supplier
for detailed requirements.
2.3 1600-W Power Supply
This specification defines a 1600W redundant power supply that supports server systems. The
parameters of this power supply are defined in this specification. This specification defines a
power supply with 2 outputs; 12V and 12V standby. The AC input shall be auto ranging and
power factor corrected.
2.3.1 Mechanical Overview
The physical size of the power supply enclosure is 39/40mm x 73.5mm x 265mm. The power
supply contains a single 40mm fan. The power supply has a card edge output that interfaces
with a 2x25 card edge connector in the system. The AC plugs directly into the external face of
the power supply. All dimensions are nominal.