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lobstaMan
 Post subject: Power Supply Makes Buzzing Sound when UPS kicks in.
PostPosted: Tue May 06, 2008 7:31 pm 
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Joined: Thu Apr 26, 2007 1:39 pm
Posts: 207
Location: Wood's harbour, N.S.
Everytime my UPS kicks in and runs on battery my Enermax power supply makes a loud buzzing noise. At first i thought it was the UPS so i returned it and got another one but the noise is still there. Could it be a bad power supply?
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Dr_BenD_over
 Post subject:
PostPosted: Tue May 06, 2008 8:04 pm 
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Joined: Thu Apr 26, 2007 6:36 am
Posts: 1926
Location: The New Glasgow "Burbs"
I get a buzzing, but it is the UPS :shock:

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lobstaMan
 Post subject:
PostPosted: Tue May 06, 2008 8:09 pm 
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Joined: Thu Apr 26, 2007 1:39 pm
Posts: 207
Location: Wood's harbour, N.S.
Dr_BenD_over wrote:
I get a buzzing, but it is the UPS :shock:


My ups buzzes alittle but the power supply is much louder.
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lobstaMan
 Post subject:
PostPosted: Tue May 06, 2008 9:06 pm 
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Joined: Thu Apr 26, 2007 1:39 pm
Posts: 207
Location: Wood's harbour, N.S.
Well it seems I need a UPS with true sine wave output instead of a simulated sine wave ouput because the Enermax PSU has active PFC. :roll: FFS I've had some problems with power supplies since I got my latest rig. 2 coolermasters and this enermax .. although the enermax is a great power supply .. I can't be buying a true sine UPS cuz they are expensive. So looks like I gotta try to sell my enermax and get a different model. GREAT.
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sbeeze316
 Post subject:
PostPosted: Tue May 06, 2008 9:52 pm 

Joined: Mon Apr 30, 2007 3:10 pm
Posts: 562
that blows goats, gotta be very careful what PSU you buy when your using ups backups.
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Flama22
 Post subject:
PostPosted: Wed May 07, 2008 9:30 am 
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Joined: Thu Apr 26, 2007 10:34 am
Posts: 1117
Location: Eastern Passage
I never even knew about this issue so I guess I've been lucky with PSU/UPS's. :?
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