if the RTX5090 leaks are accurate and its TDP is, indeed, 600W, then you would not be able to safely operate two 5090-equipped PCs on the same standard 15A/120V circuit in the US this might be getting out of hand, folks - ThreadSky

wd.teleri.net • 152 days ago

if the RTX5090 leaks are accurate and its TDP is, indeed, 600W, then you would not be able to safely operate two 5090-equipped PCs on the same standard 15A/120V circuit in the US

this might be getting out of hand, folks

Comments

emly.bsky.social•151 days ago

5090 that powers itself by putting the heat it generates into a thermocouple

tfox.bsky.social•152 days ago

600W peak. What you need is a fierce UPS.

sryazigi.bsky.social•152 days ago

WHY WOULD I WANT TWO 5090 ON MY PC

wd.teleri.net•152 days ago

I have addressed this :D it is admittedly a bit of a fringe concern, but it will happen
https://bsky.app/profile/wd.teleri.net/post/3l56axpoaed2x

huwupy.kawaii.social•152 days ago

Got me thinking about my techie in-law’s smart home (guts from the 50s, drafty, $3m in San Jose) where you can’t charge your Tesla and be warm at the same time

jacobian.bsky.social•152 days ago

I need to figure out to take out a short position against these things burning people's houses down.

wd.teleri.net•152 days ago

probably pretty low likelihood! circuit breakers are Pretty Good, at least, although shoddy wiring at the wall and/or use of under-spec extension cords will pose a genuine safety hazard.

to be fair that hazard is already posed by e.g. space heaters, which is what these big GPUs are. but with AI!

jacobian.bsky.social•152 days ago

I feel like there will be at least one case of someone taping their breaker open because they're tired of blowing it while playing a game and that ending very badly

cataleast.bsky.social•152 days ago

weenieweediweeki.bsky.social•152 days ago

Nah, they’re just going to replace the breaker with a 30 amp one and not replace the runs.

Which is almost as dangerous.

wd.teleri.net•152 days ago

that is so very PCMR it hurts

jacobian.bsky.social•152 days ago

I've been the an Electrical Engineering lan party, there are people who are just knowledgable enough to hurt themselves everywhere.

marypcbuk.bsky.social•152 days ago

That picture of the forbidden cable

orpach.bsky.social•151 days ago

I am beyond glad that plugs here all have fuses in them, and 240V power.

All I have to do is make sure to fully roll out any extension leads I want to use near their capacity. You know, in case I want to run power out through a window to do some arc welding.

leasepie.bsky.social•152 days ago

WE NEED MORE COMPUTE
XD

mooooooooooooaaaaaar

merthyr1831.bsky.social•152 days ago

Linux tech shits will still slobber all over it as if god himself bestowed it from the heavens

thorstyaf.bsky.social•152 days ago

So I can't run 2 5090s in SLI? :(

wd.teleri.net•152 days ago

tragically no. nor even nvlink!

alib234.bsky.social•152 days ago

why would you want even one of them when you could go full team red

mgraversen.bsky.social•152 days ago

Why would you run two?

wd.teleri.net•152 days ago

you and your partner are both gaming turbonerds with disposable income to enable this extremely first-world concern (myself + partner each have a [35]950x AMD box with a 3080Ti/3080 right now)

it's not going to be extremely common, but it will come uo

mgraversen.bsky.social•152 days ago

But does the rumors say that the 50-series might support SLI? Because the 40-series didn't, so I don't see a gaming use case for having two graphic cards.

bankara.ink•152 days ago

TBF, in graphics rendering you don't even need SLI, Octane Renders supports you throwing whatever CUDA-capable cards into the PC and being limited only by the smallest VRAM.

wd.teleri.net•152 days ago

the use case is two people gaming together, not a single PC with two high end cards. nvlink died with the 30 series and won’t be back

mgraversen.bsky.social•152 days ago

Ah right sorry. I get it now.

rickscampini.bsky.social•151 days ago

I guess I'm glad I only ever really play games up to the 360 era. Definitely seems like we've gotten to a pretty hard plateau of diminishing returns wrgt graphics

bossett.social•152 days ago

it pains me that nvidia's solution for the past few generations has basically been to find new ways to brute force performance with wattage

wd.teleri.net•152 days ago

it worked for Intel up until it Really Didn't, still, this feels lazy if true. to go from 350W on the 3090->600W on the 5090 is absurd.

also, how the hell are these things going to be cooled? I have 2x 360mm radiators and a boatload of fans for my 5950x+3080ti, which together are... about 600W TDP!

marypcbuk.bsky.social•152 days ago

Get one of those Azure cooling doors

sleeplessone.com•152 days ago

Just jam one of these in the window with all the fans blowing out and do a custom loop with external tubing. Super convenient for sure /s https://www.youtube.com/watch?v=tRhUHnsZ1GU

wd.teleri.net•152 days ago

jokes aside my next WC build will either be an in-desk custom or use external rads I think. the desk thing is just too cool not to try at least once, but if I can't figure that out, I quite like the look and performance of the external radiator arrangements

bossett.social•152 days ago

at some point they've gotta be adding integrated water cooling as a first-party standard

but truly absurd - I'd be questioning the capabilities of most 1000W PSUs under peak load too, there's more than just a GPU in there

wd.teleri.net•152 days ago

there is no way in hell you should use a 1000W PSU for a 600W TDP GPU and a CPU and trappings to actually drive it. load microspikes alone are going to either (ideally) cause it to randomly power down or (possibly) cause it to fry itself possibly catastrophically

goose.ski•152 days ago

run a heat exchanger off ur neighbors swimming pool

wd.teleri.net•152 days ago

I am missing an opportunity to have tropical fish for sure

bossett.social•152 days ago

23 years old and finally his time has come

kord.frontlinepoets.com•151 days ago

you must not remember the mid naughts when we had SLI/Crossfire OC rigs pulling 1900W

spoopykate.bsky.social•152 days ago

I’m getting flashbacks to the Penguin 4 days when Prescott showed up with, at the time, ridiculous power draw to brute force its way to performance. Or, even more recent Intel chips I suppose. Reviewers in the US keep downplaying efficiency and that’s gotten people complacent.

lux.bsky.social•152 days ago

15a * 120 v = 1800 watts … should be fine! Behind the 15a breaker is usually at least a 20amp circuit

wd.teleri.net•152 days ago

NEC guidelines say (roughly) you shouldn't exceed 80% circuit load over extended periods (>3hrs). you're right, you have 1800W on a 15A/120V circuit, but guidelines here are reasonably clear. There's additionally an 80% guidance on a per-device/plug/basis, so no one device should exceed 12A

wd.teleri.net•152 days ago

you're also right that there's probably a 20A circuit, but if your breaker is 15A, not sure if that matters in the long run. I'm not an electrician so I don't want to get too far out of my lane, but my meta point is around this power draw approaching the territory of 'hard to operate'

lux.bsky.social•152 days ago

yeah fr, i have a 4090 constantly running and powering my life off of solar … so it gets a little sketchy as is

markaudacity.bsky.social•151 days ago

oh no

LAN parties are going to come back

pet.bun.how•151 days ago

solution is simple: power limit the cards just for the north american market

melloman.bsky.social•151 days ago

I’ll just leave this here.

andrewbp.bsky.social•151 days ago

would you please traduce that to newbie please?

aliceweb.xyz•152 days ago

i don't usually make fun of americans but your puny eletricity setup is kind of funny

snowgoons.ro•152 days ago

Just wait until they hear about "electric kettles"... 🤯

It's always slightly jarring when watching a movie and they put a kettle on a stove, and you have to work out "are they trying to signal that it's The Olden Days, or just America?"

calmeilles.bsky.social•152 days ago

They've been told.

But many refuse to believe. 🤣

https://youtu.be/_yMMTVVJI4c?si=Aw8af5bG-FK-H3Nj

sleeplessone.com•152 days ago

Weirdly our homes all have 240V service. It's just we only use it for things like water heaters, dryers and ovens.

wd.teleri.net•152 days ago

this is increasingly untrue, but historically a lot of appliances couldn't deal with 240VAC or you needed to flip a physical switch to enable it, and people don't like to plug their $thing into the wall and have it instantly fry itself :) maybe in another 50+ years we can move to 240 standard..

sleeplessone.com•152 days ago

We literally have 240V to every home. I'm going to reference @techconnectify.bsky.social video here because he explains it way better than I could in a more entertaining way. https://www.youtube.com/watch?v=jMmUoZh3Hq4

wd.teleri.net•152 days ago

yes, I agree. I am talking about the voltage at the wall socket. my home has multiple 240V circuits, but the 'standard' is 120V, and not everything you can plug in to a NEMA A socket can handle 240V

sleeplessone.com•152 days ago

I've actually considered the feasibility of running a 240V line to an office and running everything off a server grade UPS that handles 240V input and 120V output.

wd.teleri.net•152 days ago

our standards are some good, and some bad. modern residential standards are actually 20A/120V circuits, but even there you have a max of 2400W, but max sustain of 1920W per safety guidelines. two RTX5090 boxes going all out would likely push that circuit right to its edge

zankba.bsky.social•152 days ago

If that's that case, it seems obvious to me that gamers are no longer the target market for that product.

wd.teleri.net•152 days ago

I think the [234]090 series have always been on the extreme end, but they're very much still gamer-oriented. nvidia has a large line of products with the same core architecture but less 31337 pr0 g4m3rz trappings for other users anyway

zankba.bsky.social•152 days ago

That has been the tradition for more than a decade, but with the technological interest and financial markets over AI and Nvidia chipsets, I think they will save up the 090 series for big business, if not replace them for something else. It has become even political with the export ban to China.

wd.teleri.net•152 days ago

there's certainly nonzero use of consumer GPUs in the AI space but large players are typically getting different offerings from nvidia for that, especially at scale. although there's been some "take what you can get" because of the demand, I think it's limited to development scenarios primarily

3asic.bsky.social•152 days ago

I can not imagine how fucking hot this would make the room around you feel, like this thing could classify as a space heater. Like I live in FLORIDA, it’s already like 90 degrees outside so no opening windows, and the (UNDERVOLTED) 3070 I have makes my room warm up on a full load.

candyscream.bsky.social•152 days ago

Imagine US-American Streamers moving to Alaska because of this

wd.teleri.net•152 days ago

“hey chat the little black dots are just the flies it’s fine” from may through august 🫠

candyscream.bsky.social•152 days ago

I don't actually know much about Alaska besides that it's supposedly colder than he rest of the US xD

getwired.bsky.social•152 days ago

Revolting

coolcab.bsky.social•152 days ago

i might be misremembering but i swear every ultrapremium leak cycle has had comically high inital wattage leaks, the 4090/7900XTX era definitely did. they always wind up brought down to only obscene energy consumption in the final release.

eseria.dev•152 days ago

Keep in mind PSU efficiency is not 100% - at 90% efficiency you’re drawing an extra 60W per card. Wacky high power usage

oddballtheblue.bsky.social•151 days ago

UK mains could possibly manage 3 such PC's off the same plug (3kw) so long as you're not using an Intel chip consuming ALL THE POWER. It's still an insane amount of juice and I can see why AMD said screw it over that market space.

mfrr.xyz•152 days ago

does this mean a house should not have two refrigerators powered and running?

khaimm.bsky.social•152 days ago

Also refrigerators don't run continuously.

mfrr.xyz•151 days ago

yea, they would stand still on four legs in a kitchen next to a wall, chillin ~

crazy that computers used to be as huge as a fridges, nowadays gpus alone would consume the same amount of power

wd.teleri.net•152 days ago

unlike the MMO i fail to log out of routinely 🫠

wd.teleri.net•152 days ago

not really? unless you put them on the same circuit and it’s not specced for the load. which i can honestly say i’ve never seen vis-a-vis refrigerators

wd.teleri.net•152 days ago

notably: you should only have ~80% max load on a single circuit per guidance, so 1440W draw. the two GPUs by themselves take 1200W of that (and you can guarantee microspikes to ~1440W). you also still have to power a CPU, fans, etc.

even a 20A circuit is going to be dubious in this scenario

marshray.bsky.social•152 days ago

coiners to the rescue🙃just get these babies and run extension cords to your left and right neighbors' houses.
If you're lucky one of them has a swimming pool they'll let you circulate.

kaijuultimax.bsky.social•152 days ago

lol the infrastructure in my apartment can't even handle my 2060super. The lights in my room flicker whenever I boot my PC.

krakan-g.bsky.social•152 days ago

It will be most likely 450w tdp with 600w as absolut maximum for oc. Everything says it's the same 2 fan design and no way those cool down 600w. I worry more about the price, I don't really want to spend over two grand.

wd.teleri.net•152 days ago

yeah, I hope you're right about 450W TDP. somewhere I saw mention that the 600W point with a two fan design would need e.g. custom internal liquid cooling, but the reality is you've got to get that liquid far enough way to let it cool efficiently, you can't just have a little rad inside the card lol

primarylupine.bsky.social•152 days ago

Electricians gonna be bullish on Nvidia stock.

And yes, there's already 2kW PSUs on the market. Lot of them came out during the stupid mining craze.

https://www.anandtech.com/show/12885/going-big-evgas-supernova-2000w-g-power-supply

jonfr500.bsky.social•151 days ago

Normal power breaker in Europe is 10A. Just one of those is at maximum 8,70A. It is possible to get 16A installed. Just running two computers at 1000W on single power breaker is difficult today.

primarylupine.bsky.social•151 days ago

I worked for a gaming GPU company. Had loads of cryptoweenies calling in looking for advice on running their rigs on 220/230VAC because they were maxing 120V/16A circuits.

Told them to plug into the dryer socket if they had one, and hoped they'd burn their house down.

Comments

Posting Rules

Reply