I get a buzzing, but it is the UPS
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| Power Supply Makes Buzzing Sound when UPS kicks in. https://www.mysterybyte.com/phpBB3/viewtopic.php?f=21&t=723 |
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| Author: | lobstaMan [ Tue May 06, 2008 7:31 pm ] |
| Post subject: | Power Supply Makes Buzzing Sound when UPS kicks in. |
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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| Author: | Dr_BenD_over [ Tue May 06, 2008 8:04 pm ] |
| Post subject: | |
I get a buzzing, but it is the UPS
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| Author: | lobstaMan [ Tue May 06, 2008 8:09 pm ] |
| Post subject: | |
Dr_BenD_over wrote: I get a buzzing, but it is the UPS
My ups buzzes alittle but the power supply is much louder. |
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| Author: | lobstaMan [ Tue May 06, 2008 9:06 pm ] |
| Post subject: | |
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.  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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| Author: | sbeeze316 [ Tue May 06, 2008 9:52 pm ] |
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that blows goats, gotta be very careful what PSU you buy when your using ups backups. |
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| Author: | Flama22 [ Wed May 07, 2008 9:30 am ] |
| Post subject: | |
I never even knew about this issue so I guess I've been lucky with PSU/UPS's. 
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