My psu made a pop sound and turned off?

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Eddie Tapia

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I just bought a CM GX650w and tested it on my moms computer.. i took the old 24 pin connector out and put mine in, i didnt unplug anything else as i just wanted to see it turn on and work.. it did. i took it out, plugged in one fan and it worked.. then i plugged in another one and it made a pop noise, had a faint smell but i think it was just me being paranoid as it only smelled like the metal and my nose was really up in there.. i unplugged the psu, switched it off then on, unplugged the fans, put it back on without the fans and it wont turn on.. what happened? i dont have my full build yet so i dont just want to ask for a replacement without even knowing for sure.

ALSO, i put everything back the way it was on my moms computer with her standard psu and it turned on with the cpu fan and rear fan and everything.
 
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Tu Hed

Tu Hed

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There may be two issues :

1) The big fat cable with the 24PIN is not connected properly.
2) While you had turned the power on to discover that it was not working,a current surge (OVERVOLTAGE) must have gone inside in some way and may have burnt some delicate components inside the PSU.If so,you are lucky to have all the other parts working.
 
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Eddie Tapia

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well what could have possibly caused that? my mothers computer probably requires like 200 watts maximum its a very basic sort of old computer. i can see how it could have been connected wrong, but i really dont think it was. it has warranty, i just dont even know if its broken or not.
 
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Eddie Tapia

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well what could have possibly caused that? my mothers computer probably requires like 200 watts maximum its a very basic sort of old computer. i can see how it could have been connected wrong, but i really dont think it was. it has warranty, i just dont even know if its broken or not.
 
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Eddie Tapia

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well what could have possibly caused that? my mothers computer probably requires like 200 watts maximum its a very basic sort of old computer. i can see how it could have been connected wrong, but i really dont think it was. it has warranty, i just dont even know if its broken or not.
 
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ko888

ko888

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If you read the customer feedback on Newegg.com for the the Cooler Master GX 650W you will see that several customers have reported that their PSU blew up or burned out. Some have reported that it fried their motherboard when it died.

Power supply review sites don't rate this model well. It's considered an old and outdated circuit design.
 
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Eddie Tapia

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No i did not, what i did exactly was i opened my moms computer, took the 24pin connector out, and put the one from my psu in. i did not unplug ANYTHING else from the other psu that was in her computer so everything else was still connected to her standard psu i only switched the power connector to mine. i pressed the power button on her computer and her cpu fan and rear fan powered on etc. then i tried on fan at a time, and at the second fan it instantaneously made a faint pop and powered off.
 
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Eddie Tapia

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all the reviews on amazon and youtube said it was a good psu. i don't have any other mobo to test it on and im buying my components 1 by one.. i dont know whether i should just replace it now or wait till i have money for my motherboard and then try it.
 
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Tu Hed

Tu Hed

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I read several issues regarding your PSU and "USER KO888" is absolutely correct. "If you read the customer feedback on Newegg.com for the the Cooler Master GX 650W you will see that several customers have reported that their PSU blew up or burned out. Some have reported that it fried their motherboard when it died.

Power supply review sites don't rate this model well. It's considered an old and outdated circuit design. "

And also most people who complained said that the pressed the main voltage supply to the PSU differntly that actual and that created a slight flashing and :poop: ed up the PSU.

And as I told you - you are lucky to have all the other parts working.
 
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Eddie Tapia

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Well what would be the best bet? should i replace it now? should i wait to test it on a new motherboard? should i try using a wall socket over the surge protector? should i unplug everything else from the surge protector and try again?
 
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ko888

ko888

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In the reviews on Amazon and Youtube did any of them hook up the power supply unit to a load tester and oscilloscope and perform any hotbox and cross-load stability testing?
 
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Eddie Tapia

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I didn't read that far into them. but i don't think so, heh. I just saw high ratings, scrolled over a few pages of the reviews and didnt really find any bad ones and it was 85% efficiency and on a sale so i figured why not. i just don't understand how a 80$ power supply can die instantly like that yet my mom has used her computer for over around 7 years of daily usage and it has never died out.

 
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Eddie Tapia

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I didn't read that far into them. but i don't think so, heh. I just saw high ratings, scrolled over a few pages of the reviews and didnt really find any bad ones and it was 85% efficiency and on a sale so i figured why not. i just don't understand how a 80$ power supply can die instantly like that yet my mom has used her computer for over around 7 years of daily usage and it has never died out.

 
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Tu Hed

Tu Hed

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I have one Unclean Idea - Contact your system distributor and say that your computer is not working and make up some stories.Otherwise if he sees that its a Circuit Burnout,then he will not replace it as it is not under the required Warranty/Replacement Terms.

So you know.And go for Corsair PSUs.They are reliable.A pal of mine uses it and its about 3months without a problem.

 
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Eddie Tapia

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Well i mean i just bought it.. all i have to say is i plugged it in, hooked up my computer and it would not power on.. i just tried again and nothing happened.. tried it in the surge protector.. tried it in the wall.. nothing happened. i guess ill just need to use that 5 year warranty. I see that its the d3 version of it and i think that is the older version of it.. sad day for me i guess. i'll see what i can do hopefully i wont have to ship it back or something

 
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ko888

ko888

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The discontinued RS-650-ACAA-E3 model that was made by Seventeam was worse. Your RS-650-ACAA-D3 model made by Enhance Electronics was suppose to be an attempt by Cooler Master to improve the quality of the GX 650W. It didn't seem to help much.
 
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Eddie Tapia

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ah, yes i am tired and got them mixed up. And you are right, i guess it didn't help. I got my RMA, hopefully shipping this won't cost a ton.
 
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Ijack

Ijack

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Just as a matter of interest - from your description it sounds as if you plugged the fans in whilst the PSU was switched on. Is this so? If so, it's a bad idea; you should normally power off before connecting power to anything otherwise you can blow the PSU and/or the component in question.
 
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Eddie Tapia

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Oh god, that could have been it. i know i turned it off but i dont think i turned the switch
 
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ko888

ko888

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If that were true then you would never be able to hot plug a USB or SATA device.

The problem is just the poor quality of the GX650W.
 
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Ijack

Ijack

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Hot-pluggable devices are specially designed so that power can be applied when switched on. Normal power connectors, including those on a PSU, are not so designed. This is more true than ever for a cheap PSU.

But have it your way - no skin off my nose if you blow your PSU.
 
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ko888

ko888

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I consider a fan to be hot-pluggable.

All that the PSU knows is that a load has been placed on it and it should supply power to that load.

If a PSU self-destructs because a fan has been connected to it means that the PSU is a piece of crap.

Cooler Master claims that the GX650W has OVP (Over-Voltage Protection), UVP (Under-Voltage Protection), OPP (Over Power Protection), OTP (Over Temperature Protection) and SCP (Short-Circuit Protection). Apparently none of those protections can save itself from being of poor quality.
 
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Ijack

Ijack

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http://forums.anandtech.com/showthread.php?t=1795832

But, obviously you know best. I wonder why the purveyors of high-quality servers, such as IBM, specifically produce hot-pluggable fans? Even apart from the transient voltages induced by plugging a component in - especially an electric motor - there is a distinct danger of causing a short-circuit by plugging a fan incorrectly or flexing the motherboard (which may well be the case here).

Unless a component is specifically labelled as hot-swapable, or is specified as such (e.g. USB), then it is extremely foolish to assume that you can safely connect it under load.
 
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