930~960w on 1000w psu. safe or not?

[cashen]

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.

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[Mike011]

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

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

[Z1pp4]

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

[SiiGLe]

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.

[baga105]

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

For now..  Stay safe dude..

[carlo_0000]

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

[joshuajones02]

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

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

[Rudsild]

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

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.

[Tidsdilatation]

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.

[carlo_0000]

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

[GeePeeU]

The 80% rule of thumb if generally for efficiency.

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

[maleemk]

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

[fr4nkthetank]

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

[QuintLeo]

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.

[fr4nkthetank]

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)

[Ventureum]

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

[Coffee135]

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.

[vuli]

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.

[QuintLeo]

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.

 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.

[noloco]

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