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Is a seasonic s12iii 550W Bronze+ Enough for a gigabyte RTX 2080Super OC

Dhops

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I have a 27 inch 165 HZ monitor, 16 GB of HyperX fury RGB Ram (2x8) (2666MHZ), A ryzen 5 3600 (3.6GHZ MAX 4.2GHZ), MSI B450 A-PRO MAX, a 240 GB SATA III SSD, 7200 RPM Hard disk, I also have my arctis 1 wireless dongle connected via a USB switch. My question is will my PSU be able to handle this alongside a 2080 SUPER Factory OC from Gigabyte? I've tried a website called outervision and it said on 16 hours of gaming per day I'd need a PSU that has 517W. here's a link of the result I got: https://outervision.com/b/XTyPQe I tried to be as thorough as possible with this as I'd like a definitive answer considering I'd rather not shed out an extra 100-200$ USD for a part that I may not even need. I really need a definitive answer for this because I don't know I haven't gotten exact feedback on this, if anyone's got a definitive answer that'd be great.
 
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Should be, as long as the transients dont trigger some kind of protection. Usually Seasonics are pretty good at that, but I'm not absolutely sure about their lower end ones.
I don't exactly see a problem tho, you can just give it a ride and see whether anything bad happens.
 

Dhops

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Should be, as long as the transients dont trigger some kind of protection. Usually Seasonics are pretty good at that, but I'm not absolutely sure about their lower end ones.
I don't exactly see a problem tho, you can just give it a ride and see whether anything bad happens.
What's the worst thing that could happen? I assume it just shuts off? or could there be any short circuitry, and yes this is one of the lower end ones, has OPP, OVP, UVP, SCP
 
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What's the worst thing that could happen? I assume it just shuts off? or could there be any short circuitry, and yes this is one of the lower end ones, has OPP, OVP, UVP, SCP
you can have game crashes, stuttering, or shutdowns.

you won't kill your hardware but it's not healthy either. (you can brick windows for example)

i'd recommend to just buy a larger PSU and sell the old one to get some money back.
 

Dhops

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you can have game crashes, stuttering, or shutdowns.

you won't kill your hardware but it's not healthy either. (you can brick windows for example)

i'd recommend to just buy a larger PSU and sell the old one to get some money back.
You reckon my current one isn't enough? because if it is a must I will upgrade but if it isn't required then I don't believe I need to
 
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You reckon my current one isn't enough? because if it is a must I will upgrade but if it isn't required then I don't believe I need to
i'd highly recommend to buy a better one.

i mean.. try it. does everything run. fine.
but i don't like having stuff running on the absolute edge all the time.
 

Dhops

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i'd highly recommend to buy a better one.

i mean.. try it. does everything run. fine.
but i don't like having stuff running on the absolute edge all the time.
I'll give it a try, if it works it works if it doesn't I'll get a 750w. thanks.
 
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Your system will not be drawing 500W all the time.
In fact, as an ordinary user, you will probably average like what, 300w while gaming?
As long as the transients/ripples don't cause any issues you should be fine. Anyways, if you go buy a new lets say Prime, 650w or even 550w is fine too, really.
 

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It's probably enough here's a Total System Draw with an i9 9900k at 5.0 GHz and 16 GB RAM


Load Power Consumption - Shadow of the Tomb Raider
 

JeffF

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When I built my system with a 500W EVGA Gold 80+, MSI B450 Tomahawk, Ryzen 5 1600, Corsair Vengance 2x8 Gb Ram and XFX RX 580 it wasn't enough. When I played games it crashed, freezing and etc. I got me a EVGA 650 Gold 80+ and the crashes/freezes instantly stopped. Might want to spend a bit more especially if you plan on overclocking and etc.
 
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When I built my system with a 500W EVGA Gold 80+, MSI B450 Tomahawk, Ryzen 5 1600, Corsair Vengance 2x8 Gb Ram and XFX RX 580 it wasn't enough. When I played games it crashed, freezing and etc. I got me a EVGA 650 Gold 80+ and the crashes/freezes instantly stopped. Might want to spend a bit more especially if you plan on overclocking and etc.

Conversely, I'm running a 9700K + RX 470 on an SSR-450RM with no issues, while the EDG-550 I had previously caused issues with a 6700k/RX 470 (eventually; it was fine when new). Watt rating is only part of the story; you probably had a bad unit.
 
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I wouldn't do it. Recommended is 650-700w and it's not recommended due to watt usage. Will the +12v have enough amperage? Maybe? Get a recommended PSU.
 

JeffF

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Conversely, I'm running a 9700K + RX 470 on an SSR-450RM with no issues, while the EDG-550 I had previously caused issues with a 6700k/RX 470 (eventually; it was fine when new). Watt rating is only part of the story; you probably had a bad unit.
Incorrect it was a fine working PSU that I had in a previous build before upgrading to the date. Your system specs are far different in comparison. Yes your CPU may be of more power hungry in comparison to my CPU yet your GPU is far lower in power consumption. CPU: https://technical.city/en/cpu/Core-i7-9700K-vs-Ryzen-5-1600 GPU https://technical.city/en/video/Radeon-RX-580-vs-Radeon-RX-470. In Comparison: Your CPU and GPU wattage usage alone = 215 My CPU and GPU wattage usage alone = 250 Watts. This not including Ram, Motherboard and Etc.
 

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What's the worst thing that could happen? I assume it just shuts off? or could there be any short circuitry, and yes this is one of the lower end ones, has OPP, OVP, UVP, SCP
This is so wrong

"and yes this is one of the lower end ones, has OPP, OVP, UVP, SCP"
S12iii is using an inferior secondary topology to split the 12v into minor rails (quite old), missing OTP, not claiming OCP on any rail, does not have UVP and OVP is "implemented" as the operating limitation of the Grenergy GR8313 supervisor IC, it is literally a fire hazard, it does not have the fundamental protections as you listed
 
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Incorrect it was a fine working PSU that I had in a previous build before upgrading to the date. Your system specs are far different in comparison. Yes your CPU may be of more power hungry in comparison to my CPU yet your GPU is far lower in power consumption. CPU: https://technical.city/en/cpu/Core-i7-9700K-vs-Ryzen-5-1600 GPU https://technical.city/en/video/Radeon-RX-580-vs-Radeon-RX-470. In Comparison: Your CPU and GPU wattage usage alone = 215 My CPU and GPU wattage usage alone = 250 Watts. This not including Ram, Motherboard and Etc.

Be that as it may, the rest of your componentry adds about another 100W at most, and any 500W PSU worth its salt should handle a 350W load. The point was supposed to be that my unstable system had its issues solved with a new power supply, even though the new unit was smaller. There are reasons OP may want to get a new PSU, but watts isn't one of them.
 

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I wouldn't do it. Recommended is 650-700w and it's not recommended due to watt usage. Will the +12v have enough amperage? Maybe? Get a recommended PSU.

According to the specs that unit has 45.4 amps on the +12 Volt rail.

OP if you do decide to upgrade the PSU and can buy from Amazon they are having a really good sale on EVGA Supernova PSUs. Supernova 650 watt G3 Gold for $90

 
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Average and peak power loads are of the order of 2x different. See recent work from Igor's Lab.
The scope capture (below) is of transients of >20ms duration.
There is a reason why people recommend PSU ratings about 2x the steady state max value, aside from efficiency.

Igor_Scope_PSU.png
 

Dhops

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According to the specs that unit has 45.4 amps on the +12 Volt rail.

OP if you do decide to upgrade the PSU and can buy from Amazon they are having a really good sale on EVGA Supernova PSUs. Supernova 650 watt G3 Gold for $90

In all honesty I'm getting a 2080 non super non oc, and I think this unit will do. thank you all for the help and the research on this, it's greatly appreciated!

It's probably enough here's a Total System Draw with an i9 9900k at 5.0 GHz and 16 GB RAM


Load Power Consumption - Shadow of the Tomb Raider
This a 100% real?, cuz if so I'm good here right?
 
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In all honesty I'm getting a 2080 non super non oc, and I think this unit will do. thank you all for the help and the research on this, it's greatly appreciated!


This a 100% real?, cuz if so I'm good here right?

You should be:

Average and peak power loads are of the order of 2x different. See recent work from Igor's Lab.
The scope capture (below) is of transients of >20ms duration.
There is a reason why people recommend PSU ratings about 2x the steady state max value, aside from efficiency.

View attachment 196760

Could you link the article this was taken from? From what I can see, the CPU's pulling around 100W, with PCIe/PEG at 350-ish. That suggests a 3090, yeah? All else being equal, OP's 2080 would shift the 12V Total down about 125W, putting average/continuous load at something like 300-350W, and peaks in the 550 range. ISTR conversation about the 3080/3090 being pretty "burst-y", and folks with 650W PSUs that should have been sufficient having issues. I don't think Turing spikes as badly as Ampere, though. S12iii is rated for 546W on +12V and 550W continuous. Coupled with a 3600, I'd expect average load of around or under 300W, which should leave an acceptable amount of headroom. However, I wouldn't fault the OP for grabbing the G3 that 46K linked above; its a much better unit.
 
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This a 100% real?, cuz if so I'm good here right?
My 3070 and 3900X manage to only put a 310W load on my UPS. Keep in mind that this is WITH my 65W monitor (and 15W secondary monitor) connected to the UPS. You're fine. That unit may not be the best Seasonic unit but it'll work (I would honestly replace it ASAP with a Focus GX-650 or something).
 
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as long as the transients dont trigger some kind of protection. Usually Seasonics are pretty good at that,

1. that unit is not built by seasonic
2. the CX550 (non-M) is a better over all unit and I would still go for the 650w version for a RTX 2080Super OC
 
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It will run it. If you find your PC shutting off during games or benchmarks, undervolt/lower the power limit and get a new PSU eventually.
 

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Average and peak power loads are of the order of 2x different. See recent work from Igor's Lab.
The scope capture (below) is of transients of >20ms duration.

absolutely

There is a reason why people recommend PSU ratings about 2x the steady state max value, aside from efficiency.

Those people are wrong, they should be recommending a proper modern PSU capable of handling people's needs and these new RTX series cards (especially the higher up 3xxx) that are quick on the juice and trigger PSU protection on older units. Simply purchasing a larger max output of a bad unit doesn't mean you get a good unit; just a larger output on a bad one.
 
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1. that unit is not built by seasonic
2. the CX550 (non-M) is a better over all unit and I would still go for the 650w version for a RTX 2080Super OC
Yeah, I researched it a bit after the fact ...
What's the lowest model Seasonic makes, the Focus?
 
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