PSU requirements

[adamg83]

Hi all

Another question thats been asked over and over by the looks of it, but I can not find a simple yes or no answer.

Will a Corsair CX500M power 1xantminer s3?  It has 2 PCI-E connectors but on one cable.  I have seen replies saying yes, and then just read another that says it will but on two cables, but it only comes with 1.

thanks for anyones help BTCBTCBTCBTCBTCBTCBTCBTCBTCBTC

[zlatanBorec]

Hi all

Another question thats been asked over and over by the looks of it, but I can not find a simple yes or no answer.

Will a Corsair CX500M power 1xantminer s3?  It has 2 PCI-E connectors but on one cable.  I have seen replies saying yes, and then just read another that says it will but on two cables, but it only comes with 1.

thanks for anyones help BTCBTCBTCBTCBTCBTCBTCBTCBTCBTC

for power comsumption i think 500W are enough..
Power consumption is about 360 W from the wall
for Power supply i know it have 3 +12V DC input...
i think this is for users who have low power supply... so you can use 3 power supply 150w each...
i do not think it is a problem if you plug just 1 500w PSU.

[adamg83]

Thanks 

How about the PCI-E connectors?  Does it not matter that they are off one cable?

[Lamassu]

Thanks  

How about the PCI-E connectors?  Does it not matter that they are off one cable?

It's best to use two because it will reduce the heat in the cables less chance of a fire hazard. However if you keep the miner and psu cool you should be fine.

[SargeR33]

I run two S3 miners off an 850 Antec PSU which has 2x 40a rails and 2x2 pci-e cables.

Will your PSU handle it? Absolutely. I ran one S3 miner off a 500w fsp for months without any issue. The cables get warm and by warm I mean barely noticeable.

[adamg83]

Thanks for your replies.

I've woken up this morning to very cool miners, have logged in and they are all (3 of them) going about 260gh/s?  i've turned them off and on to see if this helps.  Does anyone know why this is?   

[adamg83]

They are now at full speed again.  Any advise would be great.  They are new batch 11 straight from Bitmain.

Hopefully this doesnt keep happening

[hedgy73]

Have a look at Dogies S3 thread you might find your answer there, if not post your problem there and someone might be able to help you: https://bitcointalk.org/index.php?topic=702653

[Argwai96]

Thanks  

How about the PCI-E connectors?  Does it not matter that they are off one cable?

It's best to use two because it will reduce the heat in the cables less chance of a fire hazard. However if you keep the miner and psu cool you should be fine.

One cable should certainly not be used. You need to use at least two, however four is best to prevent them from getting too warm. (although two should realistically not be an issue)

[Lamassu]

Thanks  

How about the PCI-E connectors?  Does it not matter that they are off one cable?

It's best to use two because it will reduce the heat in the cables less chance of a fire hazard. However if you keep the miner and psu cool you should be fine.

One cable should certainly not be used. You need to use at least two, however four is best to prevent them from getting too warm. (although two should realistically not be an issue)

To be fair it depends on the gauge of the wire and the amps flowing through it. That is what determines how many cables you will need and not just that but also the environment the miners are in. So I guess your mileage will vary

[philipma1957]

Thanks  

How about the PCI-E connectors?  Does it not matter that they are off one cable?

It's best to use two because it will reduce the heat in the cables less chance of a fire hazard. However if you keep the miner and psu cool you should be fine.

One cable should certainly not be used. You need to use at least two, however four is best to prevent them from getting too warm. (although two should realistically not be an issue)

To be fair it depends on the gauge of the wire and the amps flowing through it. That is what determines how many cables you will need and not just that but also the environment the miners are in. So I guess your mileage will vary

Also setting freq a little lower hashes lower but uses less power.

I can run 3 s-3's on an evga 1300 g2  psu 

 but not at freq 250 they hash at 500gh each and the load is 1280 watts

at freq 237 they hash at 475gh each and the psu can handle the load of about 1210 watts

these vary from pc to pc.

[Biodom]

Hi all

Another question thats been asked over and over by the looks of it, but I can not find a simple yes or no answer.

Will a Corsair CX500M power 1xantminer s3?  It has 2 PCI-E connectors but on one cable.  I have seen replies saying yes, and then just read another that says it will but on two cables, but it only comes with 1.

thanks for anyones help BTCBTCBTCBTCBTCBTCBTCBTCBTCBTC

I run S3 on CX500M at stock mhz (~360-370W) for months, but NOT S3 overclocked to 250 (~415-425W), although some others said that it was OK.
You have to connect each branch of a split PCIe cable to a separate board (NOT the same board)

[adamg83]

Thanks everyone

I have them running and the cables are warm to the touch, but not hot.

[Argwai96]

Thanks  

How about the PCI-E connectors?  Does it not matter that they are off one cable?

It's best to use two because it will reduce the heat in the cables less chance of a fire hazard. However if you keep the miner and psu cool you should be fine.

One cable should certainly not be used. You need to use at least two, however four is best to prevent them from getting too warm. (although two should realistically not be an issue)

To be fair it depends on the gauge of the wire and the amps flowing through it. That is what determines how many cables you will need and not just that but also the environment the miners are in. So I guess your mileage will vary

bitman (it was probably actually one of their staff alts) has said made my above recommendation (that is where I got the information from). When it comes to powering your miners it is a good practice to be conservative with your PSUs to avoid damage to the PSU or the cables (as any damage will cause expensive downtime)

[philipma1957]

Thanks everyone

I have them running and the cables are warm to the touch, but not hot.

you can always drop from freq 250 to 243 to 237 to 231 to 225 with each one looking for the sweet spot in terms of warm cables.

based on the info you gave us I would go 1 freq lower then what you have right now.

[sloopy]

If you (anyone) were going to purchase an ATX power supply today which one would it be?
I may end up with a few S3s or SP20s, just depends on a few things, but I want to start scoping PSUs.
I have been drooling over at the Corsair website and researching about running 50% - some folks say 80% is better for quality and longevity.
Also, I'm not cheap, but I want to be smart about things, do I have to babysit ebay or is there somewhere I can pay an extra 20 and find good used, or what are your thoughts?
I like new better because of the warranty with things like ATX PSUs, there is a "known" failure rate, and I do not want to get one of those models. I understand in some situations int he crypto community everything is AS IS, but DOAs are generally covered right?
What about for miners?

Thank You

[philipma1957]

If you (anyone) were going to purchase an ATX power supply today which one would it be?
I may end up with a few S3s or SP20s, just depends on a few things, but I want to start scoping PSUs.
I have been drooling over at the Corsair website and researching about running 50% - some folks say 80% is better for quality and longevity.
Also, I'm not cheap, but I want to be smart about things, do I have to babysit ebay or is there somewhere I can pay an extra 20 and find good used, or what are your thoughts?
I like new better because of the warranty with things like ATX PSUs, there is a "known" failure rate, and I do not want to get one of those models. I understand in some situations int he crypto community everything is AS IS, but DOAs are generally covered right?
What about for miners?

Thank You

well evga 1300 g2 provides a psu trick switch with the miner.  has a ten year warranty and runs 3 s-3's at freq 231   24/7/365

I would not say it is covered but the fact they give a psu short plug helps you to think they are covered.  Somewhere there is a long discussion about this on this site.  I own 7 or 8 evga 1300 watt g2 psu's and they all work so far.  If one failed I would ask for a replacement. I don't really care if it has fine print since the short plug is a real piece of evidence to me that they allow the psu to run without a mobo.