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PSU is EVGA 1000GQ. running 24/7.

No more than 80% will be safe for 24/7

Definitely not safe. It will work for a few days until one day you will come home to a burnt smelling PSU or worse, a burnt smelling house.
Do not risk it and either heavily undervolt your GPUs or get a better PSU. Think about the people leaving near your GPUs as well.
People's lives cost much more than what you earn mining. Lol.

So basically you are running at 9x% loading 24/7 which is dangerous. I suggest you find a 1200-1300W PSU which could let you run with 80% loading for safe and stable 24/7 operation.

pretty not

not safe at all, we operate between 70-75% load 80% max.

alright. guess I'll go take off one gpu and get an extra psu.  :P

always better to be safe, no one wants a fire  :-\

For mining not safe at all. But lots depend of quality of you psu and temperature in that room where is mine.
With 930-960 power consumption you must go to 1200w psu, and try to go on platinum.

Ignore all the naysayers, a 1000W PSU is BUILT to be run AT 1000W Output and the warranty covers any failures - most PSUs that high end come with 5+ years of warranty.
What you measure as 930-960 is at the wall or INPUT, so the output is most likely 930x0.9 or~840W - a perfectly safe number.
There are ofcource some other considerations like temperature (most PSU ratings are at 45-50C) and the input voltage - on 110v most PSU's get like 80% of peak rated power output. SO if youre running on 110v or in a very hot room with no cooling, better get a 1200-1300W PSU, otherwise a 1000W is just fine.

I use corsair 750w 80+ and max 500w of them ..7/24 ..I hope they live 2 years..

Yes very safe, a 1000w psu maximum output within the computer is 1000w which is 1100w at wall. So if you are using 960w at wall then that means 87% of total power the psu can handle.

It is better to use picopsu or low-power (350W) ATX power supply connected to the main power supply through the synchronizer.
Of course the more links in the chain the more chance of problems. But it's better than using Your power supply at over 90%.

I did it for more than 6 months on a shitty old cooler master silver psu with no failures, but that doesn't mean its a good idea.
Only psu I've ever had burn on me is a thermaltake, and that was a 750w running at 300w

That is defo not safe, it is better to underrun equipment that overrun it, once you have seen PSUs of any sorts explode / go on fire, you will learn to respect these capacitored filled beast, also, some can even go on fire... It is also worth paying for good hardware, especially PSUs, not only are they tested for electrical frequencies, and balanced, but also are efficient and safer that cheap, no names..

No.

Get a 1200w PSU minimum.

Unless ofcourse you want lower lifespan on all of your hardware and PSU.   And constant crashes/reboots.

Don't listen to metroid he's a mega troll.

hehe.

So 80% from what we got from wall is safe? Kind like for 1000w psu for 880w on wall?

And i though thats real.

If you wanted to run your mining safely better to buy much higher watts.. around 1200w to 1400w is ok and you mining are safe ... i couldn't tell if you had PSU of 1000w and running 930-960w  it will be still depends in your PSu if your PSU was good in condition maybe it can handle 930-960w better to check if your PSU is really too hot so you know if better to use more than 1000w to run in safemode..

Or you can simply buy one 650/750W psu and "bridge it" :) it will still do the work

no buy ONE and make it a 12-1300.  Always better to use one.

 Standard ATX type power supplies are NOT designed or built for 24/7 operation at full output.

 Even the GOOD ones.


 "SERVER" specific power supplies are a different story, as the units they are designed to go in NORMALLY are operated 24/7.

If you are gonna be running for a short time than its ok which you probally won't be doing since you are running 24/7 and so in that case its better to reduce the load to around 80% -this is the sweet spot - beccasue no one wants to see that one say their psu is dead , its better to,run a little less at stable the run more at a risk.

already got a 500w power supply.

btw one thing I forgot to mention is that those numbers were taken from the energy meter. GPU-Z is showing about 30-40w less for each card. which of these is right when measuring power for the PSU?

80% is the gold rule.

The "at the wall" measurement includes power lost to inefficiency in the power supply.
 It will COMMONLY be 8-10% or so higher (depending on the efficiency level of your specific PS at the point you are operating it) than what the system itself is drawing.

 The power supply "rating" is for how much you can pull out of the PS - 80% of THAT is what you should be aiming for as a max, which will be more like 88-90% when measured "at the wall".

 Also, most power supplies get less efficient fairly quickly when you push them much past the 60-80% range.

Please read from your wattage meter instead of GPU-Z, GPU-Z is just an estimation.

So its around 880w for 1000w psu and 1100w for 1250w psu.

you will save some money on it. but you'll burn your entire house. which do you prefer?

At that wattage your PSU is not the most efficient, but it is definitely safe to run it. But only if you manage to run it cool, PSUs hate high temperatures.

The PSU is made to run at those wattages and if it burns, it would probably burn even at lower wattages, because it would mean that it is faulty. Also regarding the efficiency calculation the senior guys here are right - I would recommend not to listen the noobies in this thread :).

There is no need to waste additional money on 1200PSU and please calculate your return when buying platinum PSU and dont buy them blindly just because somebody else told you. The additional price for it rarely pays off vs a cheaper gold PSU.

I would have thought 80 to 85% load is where we try to aim for?

90% is certainly too high.

Did you change the PSU dude? :)

There are few options that you can choose:
1.) Buy PSU that can run 1200w
2.) Buy Server PSU and add synchronizer
3.) You can power limit the video cards
 
I do not recommend the third variant.

not safe, you shoud use 80% psu

 80% of the power supply RATING will show as somewhat more than that on a wattmeter, due to the power supply CONVERSION LOSSES.

 The RATING is how much power the supply is rated to supply to the load, NOT how much it is rated to pull from the wall.

My case now I got 1000w and use 850w at wall, and another rig 1250w and use 1050w at wall. I live at tropical country, high temperature here. Do you think it is safe?

Yes is super safe.

I am running 890 watt with 5x Radeon cards in a Corsair 1000 watt gold rated 80+ PSU since January not a single problem until now. Usually a 1000 watt PSU at full load can be a bit max, you should check the back of your PSU and check the total wattage support under the four divided tabs, for example my Corsair says max power will be 1120 watt no matter that the PSU is 1000 watt that is why I am not having problem. Not all PSU-s are like this by the way, I have another Be quiet 600 watt and max wattage support is 576 watt so check your back of your PSU.

I see your PSU says max output power 1000 watt so may be not that safe running 24/7 more than 90% of continuous power.

I have 850W enermax bronze from old dogecoin times  when i mined dogecoin, did 900w from wall 24/7 1+year, after year brake s  start usin again this, replaced fan runs now 5x rx570 700-800W from wall.
Also i had antminer s2, with enermax 1000W gold, 1050-1100W from wall 24/7, 1+ year, still alive also fan ok.
SS x1250W , 1300W wall  many moths gpu script mining, after 1,5y pcie plug melted and rma replaced.
Cheap Nexus 1000W , 850W wall, still alive. 3 years.
If psu can handle it I dont see problem to run max. only psu efficiency will be lower.

I recently ordered a lot of APW3++ and they are awesome. I used the small server with breakout boards before and after using the AWP3++ I will use nothing else. very low noise, very very low heat compared to the server PSUs.

$105 for a 1600W 94% efficiency PSU is the best you can do.

If it is was corsair I would say yes, if it was a crappy no name I'd say heck no.

Also if you look at the efficiency curve you want to stay 50%-85% for most PSUs.

I will never go over 85% for safety and efficiency.


https://i.imgur.com/nLb4LiD.png

https://i.imgur.com/Bq4f8dF.png

I`ve also had thermaltake psu that died after two-three power outages. Main two capacitors got inflated like baloons.... Avoid thermaltake folks.

I have 850W  PSU running on full capacity for about 3 month non-stop and it works fine :)

It’s definitely not safe. Above % 70-80 is not safe. Even in that margin its calculated regarding psu decreasing everyday. You should buy at least 1100 -1200 w to keep your hardware safe and healthy.

For now..  Stay safe dude..

it s safe if you have an corsair

running 2ring  5x380  on 1000w + fx8300   total 990w (the fx came later but i decrease the powerlimit on the gpu's)

power at the wall was 1080w  for close to 2 years (i got my power meter few month back)
now i keep it under 1000 at the wall


but better buy 2x 700w it s the cheapest way, i will never buy an 1000w again now i notice that

Sure to god hope that you do not have a family and kids living inside your home. If its just you, have fun!

I run the PSU at around 70% of rated number.

Why would you guys say only 80% is safe?! The products normally comes with 5 year factory warranty. I doubt the manifacturer would have that if it could not handle the load. I has a 650w PSU that had 700w load for 6 months, not a problem what so ever. I only changed it due to upgrading the entire system. I'd say you're safe. Even with overload. Just keep an eye on the temperature and smell.

when it overload it shutdown, mine shutdown if i overclocked   i notice later when i had my watt metter it did 1190w on a 1000w at the wall so it was to much

but it s safe  the power supply just shutdown when it s to much or overheat

so i alos don't know  why poeple speaking about 80% or what ever

The 80% rule of thumb if generally for efficiency.

I would say you can take it to 90% rating safely.

Only Server Grade PSUs can be safely used 24/7 over 90% of the rated capacity.

I see everyone posting 80%.  Thats usually the number that relates to electrical loads.  no more than 80% for a continuous load on the breaker.  Does not apply to a PSU

Unless it is a server-grade PSU, the 80% "ballpark" figure DOES apply for 24/7 operation.

 It's not a hard and firm LAW, but it's a good idea to stay close to that ballpark for long-term reliability and STABILITY on a 24/7 mining rig.


 Also, non-server power supplies DO have a "thermal derating" curve that often takes some digging to FIND, which is what leads to this rule of thumb.
 Server-grade ones have the same curve - but it generally kicks in at quite a bit higher temp before their rating starts dropping.

Oh I agree you get better efficiency, and you will get much longer lifecycle of the PSU due to less load = less temperature output.  But realistically, on a High quality PSU, it should not fail.  Even if it does, although downtime sucks, it is under warranty and can be replaced.  I'd be more concerned by having my PSU's horizontal if they have cheap sleeve fans.  I wouldnt run them at 100% but if its a temporary situation then by all means there is no problem.  Best practice, you are very correct, but for the "safe or not" question - I believe it is safe (if the PSU is rated highly on johnyguru)

From my experience, it is totally OK to exhaust PSU on this level. EVGA ones are prone to break before warranty though.

It is safe. Modern power supplies are safe, but I think that the power reserve should be more. Your rigs are working 24/7 and that's a big load on the power supply. With such a load it will run continuously at the maximum limit. This leads to the fact that he will fail. It's enough to lose the stability of any tension.

it will not explode or burn you house, but most certanly it will die faster at 90% load. It is simple, it will just die faster.

 Consumer-grade power supplies are designed to handle SHORT periods at high load, not continuous operation at full capacity or close.
 
 Many automobiles are designed to be able to go 150+ MPH - but most of them don't handle doing 150 MPH for 24 hours at a time.

 SAME ISSUE.


 For reference - the Distributed.Net client, which is a cryptographic program that loads a CPU or a GPU down very heavily like mining software (which does VERY SIMILAR cryptographic work) used to be used by many sites in their testing AS A TORTURE TEST because of the level of load it put on components in a system.

you need 96% efficiency PSU for that to work. Not very likely.

If you were running a 1000W PSU at full capacity, meaning your components are pulling 1000W from the PSU, your Kill-a-watt would register somewhere close to 1175W (assuming your efficiency dropped to around 85% at full power). That's a lot of wasted energy due to heat.

So even if your kill-a-watt is sayin 950W, your PSU is probably only delivering 810ish watts.

The 80% rule is a very broad term that came from server PUDs and also applies to household fuses which will flip due to excess heat generated by running continously at over 80% of the circuits max load (usaully 15a or 20a for households).

If your kill-a-watt is registering 850W, then you PSU is only supplying 680 Watts if we assume 85% efficient at max power. If you bought a larger PSU, say 1000W and ran the same rig (680W draw) it would register 740W on the Kill-a-watt. So you are throwing away 100W per hour. Which is about $130 a year at .15c/kwh. Which is the cost of a 1000w psu about :)

If your PSU is less efficient than 85% at max, then you are wasting even more money.

it is better to leave a reserve of about 20%, it's not server power units that are designed for continuous work

I use the same ration as the NEC does for normal electrical circuits, meaning 80 for continuous use. So for a 1000 Watt PSU, that would mean 800 watts are available for use in the system.

Now if you go over this by a small margin, say 820 to 840 watts you will probably be ok, but when you are starting to run at 95% load 24/7 things can get hot. While the first week or two you probably won't notice anything, overtime the components start to wear faster and wires get hot and you can have a fire hazard on your hands.

All around I think the 80% ration is the best rule of thumb to go by as saving a few dollars on a undersized PSU isn't worth the risk to you or your home.