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Forum Discussion
steveoelliott
Jun 23, 2016Luminary
APC Backups Pro 900 with ReadyNAS Pro 6 Buzzing
Hi all, I have purchased a new UPS (APC Backups Pro 900) to replace my existing old Backups CS-500 on my ReadyNAS Pro 6. I have noticed that when the new BackUPS 900 is running on battery power, ...
StephenB
Jun 23, 2016Guru - Experienced User
I don't really know if the buzzing would be a problem, though I've never heard with my cyberpower.
if you have an option to exchange it for a pure sinewave, then perhaps you should. PSUs shouldn't buzz.
- steveoelliottJun 23, 2016Luminary
I've purchased it now lol... Seems other folks use it without issue but the buzzing concerns me slightly... Need to speak to some folks who know electronics.
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