That's a common misconception. It's the Amps that cause fires, not the voltage.

The 5090 uses 600W, at 12V that's 50A, but at 120V that'd only be 5A and at 240V only 2.5A.

50A melts cables and burns your PC down, 2.5A won't. The only risk of higher voltages is that they can jump across small air gaps much easier.

There's a reason we talk about lethal current and not lethal voltage...30mA can kill you, even at something ridiculously low as 9V, but 5-10kV will not necessarily kill you, e.g. fences for horses will not kill you if you're electrocuted by them because there's basically no amperage. Voltage is not the determining factor in lethalness.

Here, plugs are 230V and 16A = 3680W. Not quite as much as I thought (most extension cords seem to be rated for a bit more, which makes sense), but definitely enough to run monitors of the same breaker.

No it's not, I'm an ee.

P = I^2R, so power squares against the current, while it's linear to voltage.

This means current causes more heat dissipation in the wire, which has risks, potentially fire if you really go too far, this is why breakers trip.

But what really causes fires (again, outside of crazy overcurrent) is Arcing, from basically either bad connections or bad insulation, OR, from an inductive load that gets disconnected, so the current tries to stay constant in the coils, which leads to massive voltage spikes.

There is no current without voltage, what you're saying makes no sense.

Current is voltage over resistance, you get as much current as you have voltage, unless there's an artificial effect limiting voltage, like a voltage regulator or zener diode or just fet.

When you say 'it's the current', that electric fense has x volts before you touch it, and the fact that it doesn't kill you means either the voltage is too low to produce a decent current in your body, or, there's a voltage regulator/limiter that means when you touch it the voltage drops to some lower level, which I could calculate using the nominal resistance of the human body and the voltage of the fence.

In a way, the output impedance of whatever is driving the fence determines how much the voltage drops under load.

I'm speaking about the voltage needed to get the deadly current across the critical areas of your body BTW, which can be handled as a kirchoff circuit I'm sure.

Yes, your are right, here is a map of Europe where you have chad power plugs in a-Murika (outside these towns only virgin plugs):

The recent technology connections video cited a lot of statistics on this topic, and at least household fires are primarily caused by overcurrent, not by arcing.

You probably know more than me — I only studied compsci with ee as minor — but from my personal experience, I've seen many cases where overcurrent caused damage, burns or fire, but I can't remember a single case where arcing caused actual damage.

Even in cheap chinesium powerstrips, the primary cause of fires is overcurrent due to AWG 22 copper clad iron wire, not arcing. (Though the switches usually weld themselves together after a few dozen uses).

God forbid I supply information. I'm fucking done commenting with all you over sensitive weirdos who think everything is a fucking argument.

In most household shocks, you touch a conductor, and you are the resistor to ground. Your resistance is independent of the drive voltage, so if you touch a 110V wire, the current will be half of what you get with a 220V wire. So the voltage determines the current, and thus the lethality.

There’s lots of other factors that go into the effective resistance like the amount of moisture on your skin, what shoes you’re wearing, and what the floor is made of, etc, but in all cases twice as much voltage will cause twice as much current. You are by far the highest resistance element in the circuit, so your resistance will completely determine the current - most household circuits are capable of supplying 10-15A continuously, so your resistance is the current limiter.

It’s a bad idea either to go touching live wires either way, but the rule of thumb I heard was was that a 110V shock usually won’t kill you and 220V shock usually will.

It’s a bad idea either to go touching live wires either way, but the rule of thumb I heard was was that a 110V shock usually won’t kill you and 220V shock usually will.

That's completely incorrect though. I've been shocked by 230VAC at least a dozen times, if not more. And the fuse for the circuit absolutely should not be the limiter, the RCCB should trip WAY before the main fuse.

nVidia cares less and less about the consumer market every year. We basically only exist to buy the factory fourths so that the overall yield of any given wafer can be maximized.

2400 for a single component is still rather insane even by server room standards. But 12 or even 18 load balanced? That starts to "make sense" for higher end data centers or even on-prem server rooms at the more tech oriented companies.

I think the typical limit is around 3600W, with 16A at 230V

Good luck plugging that into an outlet without tripping a fuse under load.

They could even used it as part of marketing. “So powerful it needs 2 connectors”

10A. That's fine.

Christ, not exactly a model of power efficiency is it?

Also, if it's drawing that much power, how could it possibly dissipate all the heat? It must sound like an F-16.

I expect this card will be a hard pass from me...

All UK plugs are 13A.

I'm not trying to be a 1-upper, but you need to also include the power the computer and CPU use as well. Not to mention the age of the outlet and how many times a plug has been inserted/removed from it. The contact resistance can be pretty bad depending on how old the outlet is.

Nvidia has been pretty shit for the last few generations but this is clearly just an engineering prototype for testing, they obviously weren’t trying to make a 2400w 5090.

Just imagine the costs of running such a system on European energy prices. We're at ~0,35€/kWh here in Germany currently. That means that an hour of running this will cost you 0,84€. Add to that the energy use of the CPU, mainboard, Monitor and you're paying well over 1€ per hour of gaming.