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PC Power & Cooling Silencer 750W Quad CF |
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Performance
| PC Power & Cooling Silencer 750W | ||||||
|---|---|---|---|---|---|---|
| AC Input | 100V-240V, 12A, 50-60 Hz | |||||
| DC Voltage | +3.3V | +5V | +12V | +5VSB | ||
| Max. Output | 24A | 30A | 60A | 3.0A | ||
| 170W | 720W | 15W | ||||
| 750W | ||||||
Tested on: AMD Athlon64 FX-62 @ 2800 MHz, ABIT AT8, 2x 512 MB DDR400, WD Raptor 36 GB, Radeon X1900 XTX + Radeon X1900 XTX Crossfire
If you look at this graph with the other PSUs we tested in mind, you will get the impression that voltages are less stable than expected. However, you have to consider that the Silencer 750W does not use seperate rails, which means that the load is not shared and everything will be sourced from the same 12V line. Our stability test is conducted at the ATX power plug.
The ripple voltage was measured on the 12V line at idle. With an amplitude of only 13.6 mV it is very low.
| Standard deviation 12V | 8.38 |
|---|---|
| Standard deviation 5V | 4.50 |
| Standard deviation 3.3V | 5.65 |
| Power Factor | 0.98 |
| Ripple Voltage 12V | 13.6 mV |
| Power Efficiency @ 320 W | 82% (320W:390W) |
Standard deviation is a statistical term, which tells how far away from the average the measurements are. In other words it's the average of the average.
A large standard deviation indicates that the data points are far from the average and a small standard deviation indicates that they are close within the average.
PC Power & Cooling's Silencer 750W takes the lead in our efficiency rating without breaking a sweat. Its 82% efficiency are testament to the great engineering that went into this product. If you are deploying a large number of power supplies in an office environment 10% less power consumption over generic PSUs may make a cost difference over time - it will definitely help save the environment.
