Quote (zeecorner @ Aug 31 2011 08:00pm)
Are you fucking kidding me?? Stop using CM psus...I just got done with an argument with btg on this shit.
Here is the verdict on CM psus: If you use one, own one, or put one in builds, then you are a fucking retard. Quit saddling people with this kind of shit, its complete bullshit.
That particular psu, can't even supply advertised power, it doesn't come close to the rated efficiency, has a shit ton of ripple, bad voltage regulation, and I guarantee it has some cheap ass parts so its gonna blow up your entire system.
Fuck, that shit really pisses me off.
tl;dr stop fucking recommending CM psus for people who don't know any better.
To reiterate your point, here is a snippet from a review by Jonnyguru on that exact power supply.
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Performance (40% of the final score) - the Coolermaster GX-750 underwhelmed in just about every way possible. Regulation was only so-so, efficiency was remarkably lower than the 80 Plus test report would have us believe, and the 3.3V rail had more ripple than the last time I did a cannonball into a pool when I was still a three hundred plus pounder. To boot, the unit wouldn't even come close to full power at forty degrees before the overtemp protection came in and shut down the party. I dearly hope that Coolermaster's shipping retail units are better performing than my sample was, but since I couldn't get my hands on one of them I'll have to score this one as I see it. I have to do a 6 here I think.
Link to review:
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=188And here's a snippet of a review for the GX650, which is even worse.
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The Bottom Line
The Cooler Master GX 650W is a mediocre power supply for couple of years ago, and an outright failure today. The Build Quality of the unit is nothing to write home about (unless it is a warning), the topology is old and outdated, and the exterior is flash over substance. Coupled with this we have mediocre voltage, poor by today's standards efficiency, and out of specification DC Output Quality. One upping this poor showing is that fact that the unit was completely unable to complete our load tests at 100v AC input. That makes the GX 650W not just a failure by our standards, but rather a double failure and an ugly one at that. Making matters worse is the fact that this unit is priced at up to $100 in retail and $70 online. (Users can pick up the much better Seasonic M12II-620Bronze from Amazon with Free Prime Shipping for $98.29). As it stands, there really is not anyone that this unit would be a good fit for that we can think of, and certainly not for its intended crowd of "gamers." Cooler Master should be ashamed and owes all gamers and hardware enthusiasts an apology.
Link to review:
http://www.hardocp.com/article/2010/11/22/cooler_master_gx_650w_power_supply_review/9Incase that link fails due to piss poor coding for Jsp's site, here is a bitly link:
http://bit.ly/pimD3p