Did you try limiting GPU power? That can confirm PSU as the cause.
Per the AMD overlay, I'm not pulling more than 277W during play time. I haven't limited it yet, but will do later today.
Did you try limiting GPU power? That can confirm PSU as the cause.
Yeah but that is an average value. Cards since the RTX 3000 series can sometimes pull a ton of power in peaks lasting only milliseconds. The RTX 3080 is the first card infamous for this, pulling 500W in up to 5ms peaks, but it applies to all > 200W cards. Your 6900XT pulls 475W in 1ms spikes:Per the AMD overlay, I'm not pulling more than 277W during play time. I haven't limited it yet, but will do later today.
Ooh, yeah, good point there. Even with a single-rail supply, it's a good idea to use two separate runs directly from the supply with these high-amperage cards. The wires may not be thick enough to carry enough amperage for more than one 8-pin connector.The other thing to check is that you're using one PSU connector per 8-pin on the GPU. Don't use the pigtail to chain two inputs to a single PSU output.
At that point it is a design flaw in the PSU. If the manufacturer ships a PSU with two 8-pin connectors on a single cable, that cable MUST be thick enough to carry all of the 300W of power that those two pins can draw. The reason to use separate cables (and in effect separate outlets on a modular PSU) is that it can help mitigate the effect of spikes, but it should never be a problem for safety.Ooh, yeah, good point there. Even with a single-rail supply, it's a good idea to use two separate runs directly from the supply with these high-amperage cards. The wires may not be thick enough to carry enough amperage for more than one 8-pin connector.
Designs with multiple 12V rails are pretty much extinct. It was a requirement in ATX 2.0 that no rail was allowed to go over 20A, but this requirement was removed with 2.3 in 2007. Companies kept reusing old multi-rail designs for a while, but those old designs are gone now.That's even more important with a multi-rail supply. Each rail is usually limited to 20 amps total.
edit: well, they used to be, anyway. I haven't bought a power supply in five or six years, and I'm not sure what current multi-rail supply outputs actually look like. They could have more rails, or be going above 20A each.
There was actually a good reason for doing multiple rails; it helped isolate problems. If one rail failed, any resulting damage would be contained to that rail and anything attached to it. Your other components would be safe, as long as the power supply was well designed.At that point it is a design flaw in the PSU. If the manufacturer ships a PSU with two 8-pin connectors on a single cable, that cable MUST be thick enough to carry all of the 300W of power that those two pins can draw. The reason to use separate cables (and in effect separate outlets on a modular PSU) is that it can help mitigate the effect of spikes, but it should never be a problem for safety.
Designs with multiple 12V rails are pretty much extinct. It was a requirement in ATX 2.0 that no rail was allowed to go over 20A, but this requirement was removed with 2.3 in 2007. Companies kept reusing old multi-rail designs for a while, but those old designs are gone now.
At this point the strategy looks to be for PSUs to sense a variety of failure modes and shut down, rather than just failing catastrophically and accidentally blasting your motherboard with mains AC, or whatever.But power supplies in general have improved, too, so planning around their failure may not be as important as it was.
When it first happened there was a huge discussion if it was the PSU's fault or the GPU. The defective GPU side points out that a PSU shouldn't be expected to handle more watts than on its sticker, and that overcurrent protection is right to shut down before something burns and that the GPU's total board power is bullshit with spikes up to 50% more, and these should have been stickered with a bigger PSU requirement:At this point the strategy looks to be for PSUs to sense a variety of failure modes and shut down, rather than just failing catastrophically and accidentally blasting your motherboard with mains AC, or whatever.
Unfortunately if the "sensing" capability is liable to pick up false positives, you can end up with the kind of problem the OP has. Or it could be the "very high, very short" transient load issue that modern GPUs seem very good at. Either way, the OP's PSU may not be "faulty" in the classic sense, it may just not be able to handle their GPU's behaviour.
Since you're ruling out possibilities it's far better to change everything out including the cables.Yep, and if it's the PSU as expected it's a 5 minute swap as long as you make sure the cables are compatible. Corsair is generally good stuff, though they have a huge range like any other large OEM.
And probably a lot more money than consumer PCs. You can easily spend $20K on a machine like the one you describe.Since you're ruling out possibilities it's far better to change everything out including the cables.
Personally I typically buy professional workstations for pretty much everything (including gaming these days), tossing out the workstations before the 5-year warranty runs out... and only build for specialised tasks. And I leave the ruling out to the onsite support, or an overnighted component that typically takes seconds to exchange (including the PSU since it's on a backplane with a single-latch release). Better uptime, better stability, no clown lights to boot.
I've bought many, many Dell Precision workstations that cost in the $15K to $20K range for our plant engineering groups, and before that DEC Alpha workstations for the first versions of ProEngineer and ProMechanica. The Alphas were... lord... 26 years ago? There's a lot to be said for that approach, and if you've got the money and are willing to leave a fair bit of consumer performance on the table in exchange for rock-solid stability, then it's a good deal.Since you're ruling out possibilities it's far better to change everything out including the cables.
Personally I typically buy professional workstations for pretty much everything (including gaming these days), tossing out the workstations before the 5-year warranty runs out... and only build for specialised tasks. And I leave the ruling out to the onsite support, or an overnighted component that typically takes seconds to exchange (including the PSU since it's on a backplane with a single-latch release). Better uptime, better stability, no clown lights to boot.
I have bought some Precisions in the past, but they always struck me as very agricultural - built for utility and not always to the best in terms of look, finish and feel even for a pro's tool where you don't necessarily care as much about that stuff. I started buying Precisions with the T7400, and I still remember being bitterly disappointed that for what I spent especially compared to the XPS 7x0 H2C's I had as gaming PC's back then, the machine stayed upright thanks to basically a single giant bent-wire coathangar... and that " " design " " philosophy seems to have stuck around with them.I've bought many, many Dell Precision workstations that cost in the $15K to $20K range for our plant engineering groups, and before that DEC Alpha workstations for the first versions of ProEngineer and ProMechanica. The Alphas were... lord... 26 years ago? There's a lot to be said for that approach, and if you've got the money and are willing to leave a fair bit of consumer performance on the table in exchange for rock-solid stability, then it's a good deal.
But then... what's the point? Better to call Alienware and just buy 2 top-of-the-line gaming systems and if one has issues switch to the other one. You'll be out less and have considerably better performance.
I mean you could and I happen to since my main/gaming home machines are current flagship-spec workstations for both Xeon and Threadripper, but you don't have to, espeically if you're going toe to toe capability-wise with a consumer machine.And probably a lot more money than consumer PCs. You can easily spend $20K on a machine like the one you describe.
So here was some settings I messed with today:
View attachment 70996
I re-played a scene (Act 2 where you meet the Spider guy) where it hard shut off'd before, three times in a row. And this time, it did not. So very unscientific test and so far so good.
If it happens again I'll let you guys know.
I think about the minimum to get into one of those is $5K, and a machine like that is probably going to kind of suck for gaming, since it will have a weak video card. Compare that with a $3K self-built machine (I'm assuming a $1600 4090), and the homebrew version is going to blow the doors off the expensive machine for gaming, and possibly for a fair number of other tasks as well.I mean you could and I happen to since my main/gaming home machines are current flagship-spec workstations for both Xeon and Threadripper, but you don't have to, espeically if you're going toe to toe capability-wise with a consumer machine.
AAANNNDDDD shut off again later into Act 2. Lost a ton of progress. I hate everything.So here was some settings I messed with today:
View attachment 70996
I re-played a scene (Act 2 where you meet the Spider guy) where it hard shut off'd before, three times in a row. And this time, it did not. So very unscientific test and so far so good.
If it happens again I'll let you guys know.
Quicksave is your friend.AAANNNDDDD shut off again later into Act 2. Lost a ton of progress. I hate everything.
Looks like a typical relabeled CWT unit, hope it works for you.
Try toggling the button on the back beside the on/off switch, should enable/disable quiet fan modeThis power supply is definitely louder. Oh well.
I’m also in favor of Seasonic, but I find shopping for PSUs to be a bit too much of “buy what I always have”. Does anyone test how PSUs handle transenient spikes?850w isn't always 850w as far as PSUs go, if you see what I mean. I always slightly overprovision with a top-end Seasonic PSU if building (I don't mostly, as per above post) to avoid issues.
Yeah, if you peruse the PSU Tier List, you'll see a lot of low-ranked Seasonic products. Only their premium models seem to be truly good, these days.Yes there are tests from time to time you can dig up. I've tended to go with Seasonic's traditional rep (and not go with their lower-end models), and that's not failed me yet.