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Inverter With UPS Mode Not Handling 2 PC's
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<blockquote data-quote="rsaeon" data-source="post: 2421969" data-attributes="member: 76792"><p>I had a similar issue that I've mentioned in another comment last year. It has to do with using a home inverter instead of an online UPS.</p><p></p><p>For flawless switching to happen during a power cut, enough electricity needs to be stored somewhere while the inverter switches to battery in however milliseconds it needs. In a normal setup, this energy is stored in the capacitors of your power supply and your inverter. Between those two, you had enough 'reserve' to survive the switch without restarts with a single system. When you added a second system, the equation changed and it's no longer enough.</p><p></p><p>The solution is a larger power supply for your second system. Even something one tier up may fix this issue, going from 750w to 850w. This is because the larger power supply has larger capacitors. If you're gaming then you may need a 1000w power supply.</p><p></p><p>This only happens when you're using a home inverter as a UPS, a proper online UPS wouldn't need this but then those costs much, much more than a home inverter.</p><p></p><p>For my scenario, I had a few systems with 450w power supplies pulling 50w at idle and they were not affected during the switchover to battery. But I had another system with a 550w power supply pulling 150w and that always rebooted. I replaced the 550w power supply with a 650w of the exact same series and it no longer reboots during a power cut. That 550w power supply works fine in lower power draw system during a power cut.</p></blockquote><p></p>
[QUOTE="rsaeon, post: 2421969, member: 76792"] I had a similar issue that I've mentioned in another comment last year. It has to do with using a home inverter instead of an online UPS. For flawless switching to happen during a power cut, enough electricity needs to be stored somewhere while the inverter switches to battery in however milliseconds it needs. In a normal setup, this energy is stored in the capacitors of your power supply and your inverter. Between those two, you had enough 'reserve' to survive the switch without restarts with a single system. When you added a second system, the equation changed and it's no longer enough. The solution is a larger power supply for your second system. Even something one tier up may fix this issue, going from 750w to 850w. This is because the larger power supply has larger capacitors. If you're gaming then you may need a 1000w power supply. This only happens when you're using a home inverter as a UPS, a proper online UPS wouldn't need this but then those costs much, much more than a home inverter. For my scenario, I had a few systems with 450w power supplies pulling 50w at idle and they were not affected during the switchover to battery. But I had another system with a 550w power supply pulling 150w and that always rebooted. I replaced the 550w power supply with a 650w of the exact same series and it no longer reboots during a power cut. That 550w power supply works fine in lower power draw system during a power cut. [/QUOTE]
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