Technical Product Specification

Power Supply Specification Guidelines Intel
®
Server Board S2400EP TPS
Intel order number G50763-002 Revision 2.0
114
Table 55. Intel
®
Xeon
®
Processor Dual Processor TDP Guidelines
TDP Power
Max Tcase
Icc Max
95 W
78 °C
130 A
80W
75 °C
85A
80W 1
socket
71 °C
80A
70W
70 °C
110A
60W
67 °C
90A
50W
65 °C
65A
12.2 Power Supply Output Requirements
This section is for reference purposes only. The intent is to provide guidance to system
designers to determine a power supply to use with these server boards. This section specifies
the power supply requirements Intel
®
used to develop a power supply for its pedestal
server system.
The combined power of all outputs should not exceed the rated output power of the power
supply. The power supply must meet both static and dynamic voltage regulation requirements
for the minimum loading conditions.
Table 56. 550-W Load Ratings (Preliminary, Subject to change)
3.3V
5.0V
12V1
12V2
12V3
-12V
5.0Vstby
Total
Power
12V
Power
3.3V/5V
Power
Load1
18
12.1
12
12
11.7
0
0.3
550
428
120
Load2
13.5
15
12
12
11.2
0.5
0.3
549
422
120
Load3
2.5
2
20
20
4.2
0
0.3
550
530
18
Load4
2.5
2
13.1
13.1
18
0
0.3
550
530
18
Load5
0.5
0.3
15
15
6.5
0.5
3
462
438
3
Load6
16
4
1
1
3.5
0
0.3
140
66
73
Load7
16
13
1
1
9
0.5
3
271
132
118
12.2.1 Grounding
The output ground of the pins of the power supply provides the output power return path. The
output connector ground pins are connected to the safety ground (power supply enclosure).
12.2.2 Stand-by Outputs
The 5 VSB output should be present when an AC input is greater than the power supply turn-on
voltage is applied.
12.2.3 Remote Sense
The power supply should have remote sense return (ReturnS) to regulate out ground drops for
all output voltages: +3.3 V, +5 V, +12 V1, +12 V2, +12 V3, +12 V4, -12 V, and 5 VSB. The
power supply should use remote sense to regulate out drops in the system for the +3.3 V, +5 V,
and +12 V1 outputs.