Please help

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with 300 watt Antec (came with the lanboy case)
Sorry, but the Antec Lanboy case comes with a SmartBlue 350W power supply, not a 300W power supply. So that right there is suspicious.

Besides, it's pretty common knowledge that the Antec <b>Smart</b>power supplies aren't all that much better quality than generics. It's the Antec <b>True</b>power supplies that rock.

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Well the Enlight power supply actually doesn't look half bad according to the specs on their website.

The supposed Antec power supply that you have I'm still not sure if it is even an Antec power supply because if it is the stock Antec supply comes with the Lanboy then it should be 350W, not 300W. But even still, as said, Antec's Smarts are their cheap line and really aren't always so dependable. It's Antec's Trues that are high quality and worth their weight in gold.

The Allied power supply is probably like most Allied power supplies, cheap but good so long as you don't press it too close to it's actual limits. Better than most generics, but still nothing stunning.

And Manhattan? I've never even heard of them before. I'd say probably as generic and corner-cutting as most out there, trying to sell based on theoretical high wattages that in reality it would fail on (or worse, puff up in smoke) long before it actually reached them.

So I'd have to say that <i>all</i> of the supplies that you listed were nothing special and your system would have likely put each of them pretty close to (or past) their limits.

<font color=blue>If you look <font color=purple>The Devil</font color=purple><font color=red>®</font color=red> straight in the eye and only see yourself then you must be standing in front of a mirror.</font color=blue>