Cm Silent Pro Platinum 550w

[prototype18]

Hi guys .

Can sm1 tell me how is it possible to run a 900 W system with a 550 PSU platinium rated ??!?!?

 

[Proximon]

No. A 550W PSU can still only deliver 550W. Because it's very efficient it simply uses less power from the wall. Say, for instance, 600W.

The max amps from the 12V rail are the max amps. Doesn't change based on efficiency.

 

[prototype18]

Thats what i was thinking too , until i read this :

When Cooler master named this PSU the “Silent Pro” they weren’t kidding, as the PSU is almost completely inaudible over the other components. Even during high load, the PSU was barely audible. High performance hard drives make more noise than the Silent Pro from Cooler master.

The PSU can also handle mid to high end systems with what appears to be ease. To push the PSU we installed it in a test system with the following components:

Intel Core i7 930 at 4GHz
12GB DDR3 2000MHz RAM
2 x Nvidia GTX570 graphics cards
1 x 128GB SSD
4x 2TB Western Digital Black hard drives
A custom water cooling loop including 10 x 120mm fans

The PSU ran a mix of gaming and synthetic benchmarks for over 24 hours, and did so without producing much heat. While this system will typically be powered by a much more powerful PSU, the Cooler master managed without breaking a sweat, a testament to the quality of the components used.

Source : Cooler Master Silent Pro Platinum 550W Review MyGaming.co.za

Edit : Based on a PSU Calc it says aprox 889 W . How can it be ?!!

 

[Proximon]

They are clueless first off. That is not a proper PSU review.

GTX 570 SLI will pull about 367W from a PSU by themselves, under a heavy gaming load:
http://forums.atomicmpc.com.au/index.php?showtopic=264

Add about 200W for the rest of the system. We are up to 567W, maybe.

The actual specs for the PSU say 540W on the 12V rail. This is probably continuous, so you can get away with more but the PSU will degrade fast.

They didn't even measure voltage regulation or ripple, so you have no idea if the system was being damaged by the testing. All you know is it didn't die. They could have at least put a multimeter on it... but as I say they are clueless.

Read the PSU guide linked in my sig.

 

[prototype18]

Best answer selected by prototype18.

 

[prototype18]

Thank you sir for ur precious answer .

 

[DJDeCiBeL]

How can it be ?!!

It shouldn't, but honestly, I don't trust that review. They don't site any numbers or exactly what the testing methods were. Just that they put it through a mix of gaming and synthetic benches. That could literally mean anything.

I highly doubt that PSU could handle a real stress test with that system (not for 24 hours, anyway). It's rated at 45A (540W) max on the 12V rail, for what it's worth.

Edit: Proximon got to it before I did, lol.