Intel SC5299WS User Manual
Intel
®
Entry Server Chassis SC5299-E TPS
Power Sub-system
Revision 3.1
Intel order number D37594-005
69
Table 82. SATA Power Connector
Pin
Signal
18 AWG Color
1 +3.3V
Orange
2 COM
Black
3 +5VDC
Red
4 COM
Black
5 +12V4
Green
2.4.2.11
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 200
the system for the +3.3V output. The remote sense output impedance to this DC/DC converter
must be greater than 200
. 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.
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.
2.4.2.12
+12V Outputs Load Requirements
This section describes the +12V output power requirements from the cage with one or two 650-
W power supplies plugged into the input of the cage. The power distribution board divides up
the 12V power from power supply modules into five separate 240VA limited channels. Channels
1 through 4 supply 12V power directly to the end system. The fifth channel supplies power to
the 3.3V and 5V converters. The 5
W power supplies plugged into the input of the cage. The power distribution board divides up
the 12V power from power supply modules into five separate 240VA limited channels. Channels
1 through 4 supply 12V power directly to the end system. The fifth channel supplies power to
the 3.3V and 5V converters. The 5
th
12V doesn’t need to meet the 240VA requirement.
Table 83. +12V Outputs Load Ratings
+12V1/2/3/4/5 combined output limit = 54A/58A pk max
+12V1
+12V2
+12V3
+12V4
+12V5
MAX Load
16A
16A
16A
16A
18A
MIN Static/Dynamic Load
0
0
0A
0A
0A
Peak load (12 seconds)
18A
18A
18A
18A
20A
Max Output Power, see note 1
12 x16A
=192W
=192W
12 x16A
=192W
=192W
12V x16A
=192W
=192W
12V x16A
=192W
=192W
12V x18A
=216W
=216W
Notes:
1.
12V maximum output current is 54 A.
2.
Peak power and current loading shall be supported for a minimum of 12 seconds.
3.
12V5 is the power source for the three DC-DC converters to generate 3.3V, 5V, and -12V.