PSU "Corsair CMPSU-750TX"


Check on a loading direct current.

DC Load

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=25W
VGA=25W
+5V=20W

CPU=50W
VGA=25W
+5V=24W

CPU=35W
VGA=40W
+5V=24W

CPU=70W
VGA=40W
+5V=28W

CPU=45W
VGA=50W
+5V=28W

CPU=90W
VGA=50W
+5V=32W

CPU=55W
VGA=75W
+5V=32W

CPU=110W
VGA=75W
+5V=36W

CPU=65W
VGA=100W
+5V=36W

CPU=130W
VGA=100W
+5V=40W

CPU=75W
VGA=150W
+5V=40W

CPU=150W
VGA=150W
+5V=44W

CPU=75W
VGA=200W
+5V=44W

CPU=150W
VGA=200W
+5V=44W

CPU=75W
VGA=300W
+5V=44W

CPU=150W
VGA=300W
+5V=44W

CPU=75W
VGA=400W
+5V=44W

CPU=150W
VGA=400W
+5V=44W

CPU=75W
VGA=500W
+5V=44W

CPU=150W
VGA=500W
+5V=44W

CPU=75W
VGA=600W
+5V=44W



Check on a pulse current of loading.

Impulse Load

220Vac (current)

CPU 50-100%, 100Hz

VGA:GPU 40-100%, 200Hz

VGA:RAM 60-100%, 400Hz

+5V 80-100%, 800Hz

CPU=25W
VGA=25W
+5V=20W

CPU=50W
VGA=25W
+5V=24W

CPU=35W
VGA=40W
+5V=24W

CPU=70W
VGA=40W
+5V=28W

CPU=45W
VGA=50W
+5V=28W

CPU=90W
VGA=50W
+5V=32W

CPU=55W
VGA=75W
+5V=32W

CPU=110W
VGA=75W
+5V=36W

CPU=65W
VGA=100W
+5V=36W

CPU=130W
VGA=100W
+5V=40W

CPU=75W
VGA=150W
+5V=40W

CPU=150W
VGA=150W
+5V=44W

CPU=75W
VGA=200W
+5V=44W

CPU=150W
VGA=200W
+5V=44W

CPU=75W
VGA=300W
+5V=44W

CPU=150W
VGA=300W
+5V=44W

CPU=75W
VGA=400W
+5V=44W

CPU=150W
VGA=400W
+5V=44W

CPU=75W
VGA=500W
+5V=44W

CPU=150W
VGA=500W
+5V=44W

CPU=75W
VGA=600W
+5V=44W


ATX2_13.vi

Load Results

Max

Min

Delta

Peak Max

Peak Min

Peak Delta

Impedance, mOm

CPU

12,03

11,96

0,06

12,19

11,81

0,38

4,6

VGA:GPU

12,03

11,92

0,10

12,21

11,70

0,51

4,9

VGA:MEM

12,02

11,95

0,07

12,14

11,81

0,33

4,0

+5V

5,13

5,09

0,04

5,16

4,99

0,17

2,6*
* - The number can be inexact.


Influence of interferences in a primary source on power supply unit operation.



220V sinus

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

220V meander

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

220V failure

220Vac (current)

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

HDD Emulation 5A

CPU

VGA:GPU

VGA:RAM

+5V

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W

CPU=79W
VGA=391W
+5V=30W


ATX2_13.vi

Mode

Peak Current

Efficiency

CPU noise

VGA:GPU noise

VGA:RAM noise

+5V noise

1: 220Vac sinus

4,2A

86,8%

0,026V

0,012V

0,014V

0,006V

2: 220Vac meander

8,2A

86,8%

0,028V

0,014V

0,013V

0,010V

3: 187-242V (random)

8,6A

-

0,029V

0,019V

0,017V

0,010V

4: 220V failure

16,3A

-

0,026V

0,014V

0,014V

0,011V

HDD emulation (5A)

4,3A

-

0,091V

0,084V

0,085V

0,011V
The maximum time of absence of 220Vac = 0,030s


Measurement of currents of consumption and efficiency of channels.

Mode

220Vac

Efficiency

OFF

0,3W

-

ON

9,2W

-

206W

245W

84,3%

5Vsb=6W

-

56,6%

5Vsb=10W

-

67,3%

3.3V=20W

-

66,9%

5V=+30W

-

92,0%

12V=+176W

-

89,5%