St50gf-st42gf-mauual-v1-p3~p4 – SilverStone ST42GF Manual User Manual
Page 3

ST50GF / ST42GF
2-2. DC Load Requirements
SST-ST50GF
Note :
1. The maximum continuous total DC output power shall not exceed 500 Watts.
2. The maximum continuous combined load on +5V and +3.3V outputs shall not exceed
170 Watts.
3. The maximum continuous combined load on +5V, +3.3V and +12V, outputs shall not
exceed 488 Watts.
SST-ST42GF
Note :
1. The maximum continuous total DC output power shall not exceed 420 Watts.
2. The maximum continuous combined load on +5V and +3.3V outputs shall not exceed
150 Watts.
3. The maximum continuous combined load on +5V, +3.3V and +12V, outputs shall not
exceed 404 Watts.
03
Output
Voltage
+5V
1
2
3
1
25
2
25
1
2
15
15
37
0.8
0.8
0.8
0.1
0.1
0.1
+12V
-12V
+3.3V
+5Vsb
NOM
12.5
20
0.4
12.5
1.75
MAX
25
40
0.8
25
3.5
Units
AMPS
AMPS
AMPS
AMPS
AMPS
MIN
+3.3V +12V
-12V -5VSB
+5V
1
2
3
1
25
2
25
1
2
10
10
30
0.8
0.8
0.8
0.1
0.1
0.1
+3.3V +12V
-12V -5VSB
+5V
1.0
1.0
0
1.0
0.1
Output
Voltage
+5V
+12V
-12V
+3.3V
+5Vsb
NOM
12.5
16.5
0.4
12.5
1.75
MAX
25
33
0.8
25
3.5
Units
AMPS
AMPS
AMPS
AMPS
AMPS
MIN
1.0
1.0
0
1.0
0.1
04
Output Voltage
+5V
+12V
-12V
+3.3V
+5Vsb
50
120
120
50
50
mv
mv
mv
mv
mv
Ripple & Noise Max
Units
O
O
2-3. Cross Regulation
The DC loads shall remain within the ranges specified in 2-2 DC Load Requirements and
the DC output voltages also shall remain within the regulation ranges specified in 2-1
Output Regulation when measured at the load end of the output connectors.
SST-ST50GF SST-ST42GF
2-4. +5V standby voltage
The +5Vsb is on whenever the AC power is present.
2-5. DC Output Voltage Ripple and Noise
Note :
1. The measurements should be made by crossing a 10uF/ electrolytic and a 0.1uF ceramic
disk capacitors at each output with measuring bandwidth from DC to 20 MHz. If ambient
temperature is under 20 C or over 30 C, the AC input should be nominal input.
Figure 1. Differential Noise Test Setup