4 ms·
You could power limit the 3090s to fit a standard 120V*20A = 2400W outlet if you really want to. The default power limit is 350W each so you'll only lose a litt
by NavinF 2y ago
You could power limit the 3090s to fit a standard 120V*20A = 2400W outlet if you really want to. The default power limit is 350W each so you'll only lose a little perf.
Also most rooms have multiple circuits. Just connect half the GPUs to each outlet. I already do this with my desktop PC because it has 2 PSUs.
Also most homes in the US have 30A*240V = 7200W dryer/stove outlets in the kitchen, laundry room, garage, etc. That's where you want to keep loud computers.
- jrflowers 2y agoBrb replacing my stove with a bunch of GPUs
- lvncelot 2y agoInference Oven
- philsnow 2y agoEasy-bake cryptominer
- qingcharles 2y agoYou can cook on the GPUs from now on.
- Dylan16807 2y agoA standard outlet is 15A, and you're only allowed to use 80% continuously. So now you're dropping to 150W each. Using two circuits is viable.
- NavinF 2y agoIn the bay area every home I've lived in had 20A circuits for everything. The NEC 80% rule is only relevant in data centers where someone enforces it. The time-current curve for any 20A breaker shows that it will take infinite time to trip when you draw 20A. This is correct behavior because 12awg wire can handle 20A indefinitely
- Dylan16807 2y agoDo they actually install the 20A outlets with the sideways part? I don't know if I've ever seen one in person. I guess the outlet doesn't matter a whole lot, especially if you take multiple cables to the wall. But I still don't want to be doing unenforced electrical violations.
- NavinF 2y agoSome outlets have the 20A sideways part, but from a safety/code perspective that's irrelevant. Consider what happens when you plug two 10A devices into a power strip. In the US there are no true 15A rated outlets. All outlets must handle 20A because the electrical code allows any outlet to be on a 20A breaker.
- Dylan16807 2y ago> Consider what happens when you plug two 10A devices into a power strip. I don't know about any argument that depends on such an action being safe. There's plenty of power strips I wouldn't trust with 20 amps.
- NavinF 2y agoThat's just how the US electrical code works. I assure you that every "15A" outlet on the wall can handle 20A. That's why products like this don't have a fuse: https://www.homedepot.com/p/Woods-2-ft-12-3-SJTW-Multi-Outlet-3-Outdoor-Extra-Heavy-Duty-Adapter-Extension-Cord-Orange-990824/301132652 https://www.homedepot.com/p/Woods-2-ft-12-3-SJTW-Multi-Outle...