Power Supply question

[armazingerz]

Hi,

I have a rig which PS is working almost at the top of its power, and I'm afraid it won't be enough on the long term because I read it's meant to loose a bit of power. I think I could get a PS a 20% more powerful to have some margin, would that be enough? Anyone with experience on the matter?

Thanx a lot!

[1715031420]

1715031420

[1715031420]

1715031420

[1715031420]

1715031420

[bathrobehero]

Some miners don't mind running their PSUs close to their cap but that's not recommended, not even on top tier models.

I generally leave a 15-20% margin and rather lower the power target of the cards if necessary.

[philipma1957]

Hi,

I have a rig which PS is working almost at the top of its power, and I'm afraid it won't be enough on the long term because I read it's meant to loose a bit of power. I think I could get a PS a 20% more powerful to have some margin, would that be enough? Anyone with experience on the matter?

Thanx a lot!

yes and no

some psu's can run close to 80% 
some psu's can run close to 90%
some can do closer to 95%-100%

that said running at 70%  is better for just about every psu around .  just easier on all parts involved and almost aways more efficient at 60-70% then 80-90%

[eckmar]

You can try to modify sever power supplies. They are made to be ran 24/7 at high loads. Other great feature is efficiency, they must have at least 92%+ efficiency and that is like gold for PC supplies. You can find them used for 20-30$ 1000w and just soldier few pins. You will save a lot of money

[Za1n]

Hi,

I have a rig which PS is working almost at the top of its power, and I'm afraid it won't be enough on the long term because I read it's meant to loose a bit of power. I think I could get a PS a 20% more powerful to have some margin, would that be enough? Anyone with experience on the matter?

Thanx a lot!

First question is what brand and model is your PSU? Top end units from eVGA, Corsair, Seasonic, etc. can handle higher continuous loads than lesser units.

Second question is how did you measure the power draw, with an at-the-wall measurement or with some other means? An 800 watt PSU will draw more than 800 watts from the wall at its maximum capacity based upon its efficiency. For example, an 90% efficient 800 watt PSU will draw around 890 watts from the wall at its maximum capacity. Conversely, if you have the same 800 watt PSU and are measuring 800 watts at the wall, the PSU is only delivering around 720 watts, so a good PSU (as explained earlier) might be well within its long-term usage limits.

A good website that mainly covers PSUs is http://www.jonnyguru.com/  They not only review popular PSU's, they have many good articles explaining different aspects of what makes up a good PSU.

In any case, it is still a good idea to have some spare headroom, or margin as you call it, and 20% is a good figure to aim for.

[ps_jb]

Hi,

I have a rig which PS is working almost at the top of its power, and I'm afraid it won't be enough on the long term because I read it's meant to loose a bit of power. I think I could get a PS a 20% more powerful to have some margin, would that be enough? Anyone with experience on the matter?

Thanx a lot!

I'm using EVGA 1300W G2 (http://a.co/aIo8YAi). Standard load ~1000W, peak ~1100W

So it is utilized on about 75% of rated power output

[armazingerz]

Thank you everyone for the comments,

the PSU is a Corsair RMi 1.000W, and there are 6 rx 480 on the rig

Hi,

I have a rig which PS is working almost at the top of its power, and I'm afraid it won't be enough on the long term because I read it's meant to loose a bit of power. I think I could get a PS a 20% more powerful to have some margin, would that be enough? Anyone with experience on the matter?

Thanx a lot!

First question is what brand and model is your PSU? Top end units from eVGA, Corsair, Seasonic, etc. can handle higher continuous loads than lesser units.

Second question is how did you measure the power draw, with an at-the-wall measurement or with some other means? An 800 watt PSU will draw more than 800 watts from the wall at its maximum capacity based upon its efficiency. For example, an 90% efficient 800 watt PSU will draw around 890 watts from the wall at its maximum capacity. Conversely, if you have the same 800 watt PSU and are measuring 800 watts at the wall, the PSU is only delivering around 720 watts, so a good PSU (as explained earlier) might be well within its long-term usage limits.

A good website that mainly covers PSUs is http://www.jonnyguru.com/  They not only review popular PSU's, they have many good articles explaining different aspects of what makes up a good PSU.

In any case, it is still a good idea to have some spare headroom, or margin as you call it, and 20% is a good figure to aim for.

[Amph]

i have the same power supply as your, they can sustain more than 1000watt even 1100 in some case, you can run it at the top all the time it will last enough, and anyway there is a 7 years warranty