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PassMark PM123 - Real-World PSU Test Case: Seasonic SSR-650 RM

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Inline PSU Tester User’s Guide Page 27
some PCI sound-cards. These are starting to become very rare, therefore this
failure alone is not enough to render this PSU as faulty or not usable.
Figure 23
- Efficiency: Using BurnInTest, we put system under load by running a
combination of tests simultaneously.
Test load 1: CPU (General purpose instructions, 1 Threads)
Test load 2: CPU (General purpose instructions, 2 Threads) and 3D Graphics test
(window size 320x200 pixels)
Test load 3: CPU (Max heat, 16 Threads) and 3D Graphics test (window size
640x480 pixels)
Mode
Output Power
Load
Input Power
Efficiency
Idle
51W
14%
65W
78%
Load 1
76W
21%
91W
83%
Load 2
182W
50%
203W
90%
Load 3
325W
90%
361W
90%
Table 19
The PSU does not meet the 80 Plus Gold efficiency requirements. Expected
efficiency at gold level at 20% and 50% load are 88% and 92% respectively.
Seasonic SSR-650RM
Active PFC F3
This is a 650 Watt 80 Plus Gold Certified power supply.
Claimed power specifications:
Rail
+3.3V
+5V
+12V
-12V
+5VSB
Max.
Power
Amps
20A
20A
54A
0.3A
2.5A
Watts
66W
100W
648W
3.6W
12.5W
Total Max. Power (W)
650W
Table 20