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Power Supply Trips Power Switch

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4 replies to this topic

#1 z-unit


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Posted 22 July 2008 - 06:37 PM

i just got a new rosewill 750 watt psu but it keeps tripping the switch in the garage that gives power to all the bedrooms in the house. i dont know if my room cant handle 750 watts or if there is a problem with the psu itself. when i plug everything in and and turn the switch the light on the mobo turns on so i know its getting power, but when i turn the computer on itself it trips the switch. my guess is that its too much power for my room but i dont see why it shouldnt be able to handle it. advice or solutions would be great

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#2 hamluis



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Posted 22 July 2008 - 06:59 PM

Well...no point in denying the obvious.

If you want to test in other rooms, you could do that...and then try it in your room again. That should be conclusive.

If it trips the power throughout the structure...the PS may be bad or the structure wiring may be questionable.


#3 Platypus


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Posted 23 July 2008 - 07:40 AM

Is the circuit breaker in your garage an RCD (Residual Current Device)? If the computer PSU works OK in another location, and the circuit breaker is an RCD, the PSU may have sufficient earth leakage to trigger it. That may not mean it's faulty - some moisture condensation trapped under a component can do it, in which situation running a while connected to a point that isn't on the RCD may evaporate the moisture away.
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#4 HitSquad


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Posted 23 July 2008 - 08:08 AM

Hi z-unit, welcome to BC. :thumbsup:

dont know if my room cant handle 750 watts or if there is a problem with the psu itself

That's PS output. :flowers:
The ps itself should only use\draw standard outlet voltage, no matter what the output. (110 in US)
Make sure the switch on the back of the PS is set accordingly. If it is, the PS itself is probably defective and could cook your motherboard and\or other components as well.
BTW, is this system oem or custom build?

Edited by HitSquad, 23 July 2008 - 08:13 AM.

#5 dc3


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Posted 23 July 2008 - 10:56 AM

The American version of what Platypus is talking about is GFCI (Ground Fault Circuit Interrupter).

Does this switch look like either of these two devices? The breaker is the device with the white wire attached, there is a test button on these that can be either red or white depending on the manufacturer.

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If this is a GFCI the problem could be that it is a older type, some of the early models didn't like to see certain types of loads. AS it has been suggested, try plugging this in on a circuit that is on a different breaker, it it fails on the separate then you have a dead short in the PSU and will need to replace it.

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