-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Desktops
- Business PCs, Workstations and Point of Sale Systems
- Basic UPS for Z840

Create an account on the HP Community to personalize your profile and ask a question
09-11-2020 07:12 AM
Where I live, the power drops about once or twice a month. Usually just for a second, sometimes a few minutes.
What I'm looking for is a UPS, that'll kick into keeps the lights on, and if the outage lasts for more than say 10 minutes, signal the computer to enter sleep state.
The WS consumes around 160W when idle, 9W when sleeping.
As I am not planning to continue working in the event of an outage, do I really need more than a very small one?
How will the computer sense that it's on battery (for it to automatically enter sleep state if it lasts more than a few minutes)?
Is a HP branded UPS any better?
09-11-2020 08:08 AM
most of the UPS makers (APC-Eaton/Dell-CyberPower-Emerson) have online calculators to determine the required UPS wattage/runtime
https://www.apc.com/shop/us/en/tools/ups_selector/
https://www.apcguard.com/Smart-UPS-Runtime-Chart.asp
https://www.cyberpowersystems.com/tools/runtimes/