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PSU time again, unbelievable.

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Almost 2 years ago (23 months) I had to replace my SS 850 because my 3080 Ti was tripping PSU's OCP. Got SS TX-1000 and was good. Now my 4080S is triggering instant power-off, reading that it's SS to blame once again (even 1300 will trip off, something about faulty supervisor IC). Which PSU is known to work fine with 4080S? I don't need 1000W PSU, only have 4080S + 5800X3D.

Edit: swapped the 850 in, let's see what happens ...
 
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Toothless

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HX line of units is probably your best bet. I've heard a lot of SeaSonic units tripping on 4090's even and my GT1300w trips on my XTX. System specs are current and solid as a rock.
 
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i have a corsair rx series haven't issues with my i7 13700k + 4070s. granted 4070s is 100watts less tdp but i think my cpu i think makes up in that department.

As a side note you could try doing some undervolting of your 4080s maybe that will help with the problem.
 
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If the PSU is faulty they have to repair the faulty IC or replace it.
If there is a factory fault with a specific series then they can upgrade you to a better series at their cost.

SS is still one of the best PSU OEM unless things have changed recently.

I would get on their case since they usually have really long warranty on their Power supplies.
 
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Okay I will contact SeaSonic. Though apparently I can also just disconnect the sense wires on the 12V pins for the 24-pin cable as a bypass of the problem (noise on 12V sense causing incorrect shutdown).

Random thought: could probably slam the 860W back in, as the 4080S FE uses a lot less power than the hungry evga 3080 Ti FTW3. Depends on how spikey the 4080S is.
 
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Using my EVGA 1300 G2 with my 4080. CableMod E-series cable built for it. Works great.
 
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Corsair is a safe bet. The RM850 which has already been recommended is good and more than enough for your setup. In my most recent build I went Superflower. Amazing quality for the price in my opinion.
 

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Okay I will contact SeaSonic. Though apparently I can also just disconnect the sense wires on the 12V pins for the 24-pin cable as a bypass of the problem (noise on 12V sense causing incorrect shutdown).

Random thought: could probably slam the 860W back in, as the 4080S FE uses a lot less power than the hungry evga 3080 Ti FTW3. Depends on how spikey the 4080S is.

fwiw I don't have the same power draw anymore, but my current HX1000 solved my power issues back on 7900XT, which is a bit more power hungry than 4080S for both steady state and transients. Still using the HX1000 now.

Not sure about 4090, but it doesn't seem like anything AD103/AD104 based is nearly as bad as Ampere was for transients.
 
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Odd I have three SS TX units 2x850/1x1000 all work fine with my Gigabyte 4090 using a cablemod 4x8 to 12VHPWR..... I had issues with one of them shutting down with my 3080ti FTW3 though but the same psu worked fine with a 3090 so hard to say what was up with that.

I've done 4080 builds with 750w RMx so anything from the rmx 750 or above should be fine. Although if it was me I'd be looking for somthing with a native 12VHPWR if I was buying in 2024.
 
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+1 for Corsair HX.
Had a SSR-1000TR (Titianium) that would shut off from RTX 3080 spikes. Replaced with a Corsair HX-1000 (Platinum) and never had any issues even after I upgraded to a RTX 4090.
 
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In my most recent build I went Superflower. Amazing quality for the price in my opinion.

Bit concerning a 3080 is wiping out 1000w PSU. Considering purchase of 3080 I've yet to boot with due to BIOS/mobo limitations.

Recently bought a 750w Superflower to accompany it specifically to avoid SS. Actively hoping that this was a SS issue instead of setting myself up for similar problems.

Although if it was me I'd be looking for somthing with a native 12VHPWR if I was buying in 2024.

Three cable revisions and counting. Should be able to plug the next one or two in the same slot on ATX 3.x, but again actively avoided and predominantly remanufactured from SS from what I saw available.
 
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That is good to know about the sense. My 3070Ti will knock out my Prime GX-750 when running with my 5900X. Its ok with my 5600X right now. I have a EVGA 750 G+ that has held its rails tighter that the GX, and has not shut down once. Just a cheapo PSU rocks my Prime.
 
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The Seasonic prime units had issues with the Nvidia 3000 series cards because the Nvidia cards were feeding noise back into the 12V sense pin. I say were because the issue was remedied on all 2017 and newer units. For existing owners, Seasonic offered replacement cables that fixed the issue as well.

Even if you do have a pre-2017 unit and didn't get a replacement set of cables from Seasonic the issue you describe is not the one above (which is what you seem to think it is) as it only applies to the 3000 series. The 4000 series does not have the same noise issue as the 3000 series and in addition to remedying the noise issue power spikes in general have been greatly mitigated.
 

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The Seasonic prime units had issues with the Nvidia 3000 series cards because the Nvidia cards were feeding noise back into the 12V sense pin. I say were because the issue was remedied on all 2017 and newer units. For existing owners, Seasonic offered replacement cables that fixed the issue as well.

Even if you do have a pre-2017 unit and didn't get a replacement set of cables from Seasonic the issue you describe is not the one above (which is what you seem to think it is) as it only applies to the 3000 series. The 4000 series does not have the same noise issue as the 3000 series and in addition to remedying the noise issue power spikes in general have been greatly mitigated.
I bought mine in 2020 from the Egg. When I contacted support about my problem they told me to turn down my GPU clock. Not very helpful. They pretty much told me to kick rocks.
 
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I have a be quiet straight power 12 1200w and it's been great with the 4090 and 13900k.
 
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The Seasonic prime units had issues with the Nvidia 3000 series cards because the Nvidia cards were feeding noise back into the 12V sense pin. I say were because the issue was remedied on all 2017 and newer units. For existing owners, Seasonic offered replacement cables that fixed the issue as well.

Even if you do have a pre-2017 unit and didn't get a replacement set of cables from Seasonic the issue you describe is not the one above (which is what you seem to think it is) as it only applies to the 3000 series. The 4000 series does not have the same noise issue as the 3000 series and in addition to remedying the noise issue power spikes in general have been greatly mitigated.

My TX-1000 is actually May 2021 according to the S/N. The threads I saw claimed fixed end of 2020. The instant shutdown only happens every few days under GPU load. No overclocks on anything, GPU is a stock clock model. It started as soon as I installed the 4080S FE. I swapped in the older SS 850W, will see what happens for a few weeks. Then I will pull the 12V sense pins, and try the 1000W again.
 
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First, I think if you want to be taken seriously around here, you should update your TPU System Specs with actual components, instead of the silly entries, so we understand what hardware you have so we can all be on the same page.

I don't need 1000W PSU, only have 4080S + 5800X3D.
I agree. Unless you have a huge bank of power hungry hard drives, fully populated RAM slots, a massive number of cooling fans and water pumps, and you are doing some extreme overclocking, you should be able to get by with a "quality" 650W supply.

But again, since we don't have a serious picture of your hardware, we don't know what you really can get by with. :(

Second, a power supply should not work fine, then suddenly not - unless the user made significant HW changes affecting the demands on the PSU. Did you?

If not, and especially since dealing with more than one PSU, you need to verify you are providing the PSUs quality mains power. Every home and every computer user should have access to a AC Outlet Tester to ensure the wall outlet is properly wired and grounded to Earth ground. I recommend one with a GFCI (ground fault circuit interrupt) indicator as it can be used to test bathroom and kitchen outlets (outlets near water) too. These testers can be found for your type and voltage outlet, foreign or domestic, (like this one for the UK, or this one for German outlets) at most home improvement stores, or even the electrical department at Wal-Mart. Use it to test all the outlets in the home and if a fault is shown, have it fixed by a qualified electrician.
 
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No issues with my 5900x and 3080Ti on my Seasonic X-850 gold.
 
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Just upgraded from a 6900xt to a 7900xt, with a 5600x3d and my old EVGA 850GQ is running just fine. PSU is from 2019.
 
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I bought mine in 2020 from the Egg. When I contacted support about my problem they told me to turn down my GPU clock. Not very helpful. They pretty much told me to kick rocks.

Yeah I'm pretty sure Newegg got rid of anyone remotely knowledgeable about PCs to cut costs. What a ridiculous response to give you.

My TX-1000 is actually May 2021 according to the S/N (ordered April 2022). The threads I saw claimed fixed end of 2020. The instant shutdown only happens every few days under GPU load. No overclocks on anything, GPU is a stock clock model. It started as soon as I installed the 4080S FE. I swapped in the older SS 850W, will see what happens for a few weeks. Then I will pull the 12V sense pins, and try the 1000W again.

100% it's 2017. That's when Seasonic announced the fix and offered replacement cables. The cable replacement program wasn't even open anymore in 2020, it had ended by then.

Either way, let us know your findings.
 

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Yeah I'm pretty sure Newegg got rid of anyone remotely knowledgeable about PCs to cut costs. What a ridiculous response to give you.
That was Seasonics response! :D

:laugh:

I still look at them because I am in the market, but they are not my first choice. That was my first Seasonic PSU, could be the last.. not sure yet.

Edit:

It was the same sort of response that I got from Corsair about their AIO that I had.. they have been blacklisted by me.
 
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Benchmark Scores They're pretty good, nothing crazy.
i use a corsair 750 SFX plat with a 13700k and a 4090 and it's been running great for 1.5 years with not one issue. It used to power the 12600K OC'd to 200W and a 3080. So it's a 3 year old unit at this point.

EDIT: and I did burn the CPU with Prime (225W limit since im on air) while running 4090 in cyberpunk with raytracing cranked to max at 4K to see if the unit would be enough -- it did pull an average ~680-700W with higher spikes but the unit was fine, no shut offs and was actually pretty quiet all things considered. I think i spiked it over 800W at one point and this PSU didn't flinch.
 
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