Why can my uninterruptible power source handle an entire workstation and 4 monitors for half an hour, but dies on my toaster in less than 30 seconds?

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Lost power today. My toddler wanted toast during the outage so I figured I could make her some via the UPS. It made it all of 10 seconds before it was completely dead.

Edit: I turned it off immediately after we lost power so it was at about 95% capacity. This also isn’t your average workstation, it’s got a threadripper and a 4080 in it. That being said it wasn’t doing anything intensive.
It’s also a monster UPS.

Edit2: its not a TI obviously. I’ve lost my mind attempting to reason with a 2 year old about why she got no toast for hours.

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15 Answers

Anonymous 0 Comments

I find that most people are surprised about energy needs. Basically 3/4 of your energy bill will be your house heating, washer and dryer, fridge, and hot water tank. Everything else is peanuts. If you or someone you know loses their mind about turning off a light it would be much better served by turning the thermostat down a degree or air drying your clothes. Basically anything that changes temperature will use a fuck ton of energy to accomplish it.

Anonymous 0 Comments

Is your threadripper and 4080 are going full bore? Meaning running benchmarks, rendering video or playing games at 4k 120fps?

Because a computer when iddle is very efficient, I would say you don’t consume more than 150-200W with the displays. Your toaster is what 1000-1500 W? and when on, it consumes that much.

A resistive heating element is a huge powe hog, like what you have in your toaster.

Anonymous 0 Comments

Not your actual question but you can make somewhat acceptable toast in a toddler emergency on your gas grill or even with one of those long-handled lighters if you are patient.

Anonymous 0 Comments

If you have a gas stove you could make toast on a dry frying pan when the power is out. Or if you have an outdoor grill…

Anonymous 0 Comments

Ultimately, all electronic devices are creating heat. What gets hotter, your toaster or your pc? The toaster, by a lot, right? So the toaster is drawing WAY more power, which probably made your power supply shut down as a precaution…