Power Information
Intel® Server Board SE7505VB2
BMC AUX5V
1 0.42
65%
0.27
0.08
0.054
AUX3.3V
1 0.30
65%
0.20
0.09
0.059
Super I/O (W83627HF)
1
0.75 80% 0.60
0.23 0.15
0.181
0.121
NIC 82559 Network chip 2
1.95 80% 1.25
0.39
0.250
CLK3.3 (CY28329
Generator) 1
1.35
80%
1.08
0.27
0.216
Video
RAM
(2MX
32) 1 0.99
80%
0.79
0.30
0.240
System ROM (FWH)
1
0.04 80% 0.03
0.01
0.010
Others
7.50
50%
3.75
1.50
0.75
USB
2 5.00
50%
2.50 1.00 0.50
Keyboard
1 0.75
50%
0.38 0.15 0.08
Mouse
1
0.63 50% 0.31
0.13
0.06
System Fan
4
9.90 75% 7.43
1.98
1.49
CPU
Fan
2 4.80
75%
3.60
0.48
0.36
Board Level output current
13.09 11.585
18.51 0.484
12.2 Power Supply Specifications
This section provides power supply design guidelines for the baseboard, including voltage and
current specifications, and power supply on/off sequencing characteristics.
Power Supply voltage specification is based on the SSI EPS12V (Entry Power Supply)
specification, Revision 1.6.
Table 71. The Board Power Supply Voltage Specification
Parameter
Min
Nom
Max
Units
Tolerance
+3.3 V
3.20 V
+3.30
3.46 V
V
rms
+5 / -3 %
+5 V
4.80 V
+5.00
5.25 V
V
rms
+5 / -4 %
+12 V
11.52 V
+12.00
12.6 V
V
rms
+5 / -4 %
-
12
V
-11.40 -12.20 -13.08 V
rms
+9 / -5 %
+5 VSB
4.80 V
+5.00
5.25 V
V
rms
+5 / -4 %
12.2.1 Power
Timing
This section discusses the timing requirements for operation with a single power supply. The
output voltages must rise from 10% to within regulation limits (T
vout_rise
) within 5 ms to 70 ms.
The +3.3 V, +5 V and +12 V output voltages start to rise approximately at the same time. All
outputs must rise monotonically. The +5 V output must be greater than the +3.3 V output during
any point of the voltage rise, however, never by more than 2.25 V. Each output voltage shall
reach regulation within 50 ms (T
vout_on
) of each other and begin to turn off within 400 ms (T
vout_off
)
of each other. The following figure shows the output voltage timing parameters.
Revision
1.2
Intel part number C32194-002
96
