Technical Product Specification
Intel® Server Chassis SC5650 TPS Power Sub-system
Revision 1.2
Intel order number E39531-004
55
Table 54. P10 SATA Power Connector
Pin Signal 18 AWG Color
1 +3.3V Orange
2 COM Black
3 +5VDC Red
4 COM Black
5 +12V4 Green
2.3.2 DC Output Specification
2.3.2.1 Remote Sense
The cage 12V to 3.3V and 5V converters use remote sensing to regulate out voltage drops in
the system for the +3.3V output. The remote sense output impedance to this DC/DC converter
must be greater than 200Ω. This is the value of the resistor connecting the remote sense to the
output voltage internal to the DC/DC converter. Remote sense must be able to regulate out of
up to 300mV drop on the +3.3V and 5V outputs. Also, the power supply ground return remote
sense (ReturnS) passes through the PDB and the output harness to regulate out ground drops
for its +12V and 5Vsb output voltages. The power supply uses remote sense (12VRS) to
regulate out drops up to the 240VA protection circuits on the PDB.
2.3.2.2 +12V Outputs Load Requirements
This section describes the +12V output power requirements from the cage with one or two 600-
W power supplies plugged into the input of the cage. The power distribution board divides up
the 12-V power from power supply modules into five separate 240VA limited channels.
Channels 1 through 4 supply 12-V power directly to the end system. A channel supplies power
to the 3.3V, 5V, and -12V PDB converters.
.
Table 55. +12V Outputs Load Ratings
+12V1/2/3/4 combined output limit = 64A / 72A pk max
+12V1 +12V2 +12V3 +12V4
MAX Load 16A 16A 16A 16A
MIN Static / Dynamic Load 0.2A 0.2A 0.1A 0.1A
Peak load (12 seconds) 18A 18A 18A 18A
1. Peak power and current loading shall be supported for a minimum of 12 seconds.
2.3.2.3 DC/DC Converters Loading
The following table defines the power and current ratings for the three DC/DC converters
located on the cage; each is powered from a +12V5 rail. The three converters meet both static
and dynamic voltage regulation requirements for the minimum and maximum loading conditions.