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New PS smells like burning plastic?


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#1 AndrewGS

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Posted 26 June 2010 - 10:32 PM

The stock 250w power supply in my parents' ol' Compaq desktop went out so I replaced it with a new Cooler Master RS-460-PMSR-A3 460w unit.

I powered up the PS and booted the computer, but it turned itself off after a few seconds. I smelled a burning smell so I unplugged the PS and checked all the connections. This is when I discovered that I had accidentally plugged one of the optical drives in backwards (it has no polarity notches on the drive's molex). So, as that read-only drive is never used I just unplugged it, plugged the PS back in and booted the computer. The computer runs fine now, but it smells horrible, like burning plastic, and I'm afraid to leave it on or even plugged in.

Is this a normal break-in smell?

Did I screw up something in the PS with the drive plugged in wrong?

Should I just exchange the PS for another?

Thanks in advance.

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#2 the_patriot11

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Posted 26 June 2010 - 10:47 PM

I have ordered 2 of those exact same power supplies, one for a home computer I sold and one as a replacement for a failed PSU for a customers existing computer, and neither one had any kind of strong oder coming from them. They are solid power supplies-as is evidenced by the fact that its still running (Im failing to see how you got it in backwards, most drives, in fact nearly all the drives ive seen, they only go in one way, unless you force them, but I guess its possible it wasnt shaped, doesnt really matter now) and it may run for some time to come, however, me being the paranoid person that I am, if its still under warranty, I would simply RMA it. Just send coolermaster an email saying hey, its smelling like burnt plastic (dont go into details) and they should RMA it for you.

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#3 AndrewGS

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Posted 26 June 2010 - 10:56 PM

Thanks. I'll get it swapped out tomorrow.




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