Intel SC5299WS User Manual

Page of 154
Power Sub-system 
Intel
®
 Entry Server Chassis SC5299-E TPS 
  
Revision 
3.1 
Intel order number D37594-005 
36 
Table 38. Power On Load Ratings 
Voltage 
Minimum Continuous 
Maximum Continuous 
Peak 
+3.3 V 
0 A 
9 A 
 
+5 V 
0 A 
7 A 
 
+12 V1 
0 A 
16 A 
 
+12 V2 
0.1 A 
5 A 
 
-12 V 
0 A 
0.5 A 
 
+5 VSB 
0.1 A 
3.0 A 
3.5 A 
 
Table 39. Power On Voltage Regulation Limits 
Parameter 
Tolerance 
MIN 
NOM 
MAX 
Units 
+ 3.3V 
- 10%/+10% 
+2.97 
+3.30 
+3.63 
V
rms
 
+ 5V 
- 10%/+10% 
+4.50 
+5.00 
+5.50 
V
rms
 
+ 12V1 
- 8%/+10% 
+11.04 
+12.00 
+13.20 
V
rms
 
+ 12V2 
- 8%/+10% 
+11.04 
+12.00 
+13.20 
V
rms
 
- 12V 
- 5%/+9% 
-11.40 
-12.00 
-13.08 
V
rms
 
+ 5VSB 
- 5%/+5% 
+4.75 
+5.00 
+5.25 
V
rms
 
 
2.2.4.11 
Grounding 
The ground of the pins of the power supply output connector provides the power return path. 
The output connector ground pins are connected to safety ground (power supply enclosure). 
This grounding is well designed to ensure passing the maximum allowed Common Mode Noise 
levels. 
The power supply must be provided with a reliable protective earth ground. All secondary 
circuits are connected to protective earth ground. Resistance of the ground returns to chassis 
does not exceed 1.0 m
  . This path may be used to carry DC current. 
2.2.4.12 
Remote Sense 
The power supply has remote sense return (ReturnS) to regulate out ground drops for all output 
voltages: +3.3V, +5V, +12V1, +12V2, -12V, and 5VSB. The power supply uses remote sense to 
regulate out drops in the system for the +3.3V, +5V, and 12V1 outputs. The remote sense input 
impedance to the power supply is greater than 200
   on 3.3VS, 5VS. This is the value of the 
resistor connecting the remote sense to the output voltage internal to the power supply. Remote 
sense must be able to regulate out a minimum of 200mV drop on the +3.3V output. The remote 
sense return (ReturnS) must be able to regulate out a minimum of 200mV drop in the power