S3+ Bitmain Miner Power Arrangement

[firewire2013]

Hello

So I have 4 x S3 miners coming next week and I’m just about to buy the power supplies. I was thinking two Corsair HX850 (850Watts), only snag is they have 6xPCI-E 6 connecters and the miners take four each. Would like to over clock them abit and concerned the wire will heat up to much.
http://www.corsair.com/en-gb/psus/hx-series

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

Looked at this guide which is great but isnt that detailed.
https://bitcointalk.org/index.php?topic=702653.0


Cheers  

[y_boonstra]

Hello

So I have 4 x S3 miners coming next week and I’m just about to buy the power supplies. I was thinking two Corsair HX850 (850Watts), only snag is they have 6xPCI-E 6 connecters and the miners take four each. Would like to over clock them abit and concerned the wire will heat up to much.
http://www.corsair.com/en-gb/psus/hx-series

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

Looked at this guide which is great but isnt that detailed.
https://bitcointalk.org/index.php?topic=702653.0


Cheers 

Its better to buy an server PSU wich is more efficient more reliable and much easier to exchange when the break down. All you need is a server PSU + a breakout board.

I have got an IBM DSP2000 PSU wich can go to 2500W or 200A on the 12V rail.. no PC-PSU can beat that (bought it for $ 45)

[notlist3d]

Personally I have been using the RM1000.  No problem powering two.   Its also a very efficient PSU.   

My biggest thing is i prefer to go gold on power supplies even though it is higher then if you go with a bronze something else.

[firewire2013]

Hello

So I have 4 x S3 miners coming next week and I’m just about to buy the power supplies. I was thinking two Corsair HX850 (850Watts), only snag is they have 6xPCI-E 6 connecters and the miners take four each. Would like to over clock them abit and concerned the wire will heat up to much.
http://www.corsair.com/en-gb/psus/hx-series

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

Looked at this guide which is great but isnt that detailed.
https://bitcointalk.org/index.php?topic=702653.0


Cheers 

Its better to buy an server PSU wich is more efficient more reliable and much easier to exchange when the break down. All you need is a server PSU + a breakout board.

I have got an IBM DSP2000 PSU wich can go to 2500W or 200A on the 12V rail.. no PC-PSU can beat that (bought it for $ 45)

Interesting, are the server PSU's even better than the 80 Gold Rated ATX PSU's. I have seen on youtube some guy tested a crappy PSU against a Corsair and the difference in power usage at the wall was 120watts! The crappy one was pulling 470watts and the Corsair was pulling 350watts thats alot if your farming.
Do you have any brands of server PSU and breaker boards...im in the UK.

[daddyfatsax]

Check sidehack's group buy out. I have 6 of his PSU's pushing 11 of my S3's, with 1 PSU for 2 miners. They have been working perfectly for a while. These things are loud, but they are the best PSU's for the money.

https://bitcointalk.org/index.php?topic=503423.0

[firewire2013]

No sure I like the idea of using server PSU's.... noisy and I doubt they are very efficient, but hey thanks for the input. Im going to buy ATX PSU's Gold or Plat rated.

I found this video on you tube and this guy has them cross connected each PSU powering 1.5 miners. I didnt know this was possible for the S3+, would someone please confirm its safe.

https://www.youtube.com/watch?v=30-_MVvzgVI

So if I got the EVGA SuperNOVA 850 G2 this has, 6x 8pins on the rear so I could power 1.5 miners?



#notafeckingclue  

[ferncreekminer]

No sure I like the idea of using server PSU's.... noisy and I doubt they are very efficient, but hey thanks for the input. Im going to buy ATX PSU's Gold or Plat rated.

I found this video on you tube and this guy has them cross connected each PSU powering 1.5 miners. I didnt know this was possible for the S3+, would someone please confirm its safe.

https://www.youtube.com/watch?v=30-_MVvzgVI

So if I got the EVGA SuperNOVA 850 G2 this has, 6x 8pins on the rear so I could power 1.5 miners?

http://hardzone.es/app/uploads/2014/03/EVGA-Supernova-G2.jpg

#notafeckingclue  

I have 5 EVGA G2 850W units powering 10 S3/S3+ no problems; no need to use paperclip to short the pin on the motherboard connector either - the PSUs come with a adapter that will short the pins. You only need to use 2 PCIE power cables per S3 - no need to use 4 per miner.

Also using EVGA G2 750W units to power AM Prisma (2 per Prisma)

If you happen to be in USA; Amazon has the best prices on the EVGA G2s and their MiR will cover up to 2 PSUs.

I have used the Dell 750W Server PSUs w/ breakbout boards; they get pretty hot; even with the fan turned up.  I sold 2 of tyhem on eBay - kept 2 for spares; so I could setup miners in my office before they go to mining room in basement.

[pak13]

searching these forums, you'll find the ratings of many power supplies so you won't need to speculate as to how efficient or noisy they are. Failing that, google it.

[firewire2013]

searching these forums, you'll find the ratings of many power supplies so you won't need to speculate as to how efficient or noisy they are. Failing that, google it.

Great advise there mate, dont give up your day job! 

[firewire2013]

I have 5 EVGA G2 850W units powering 10 S3/S3+ no problems; no need to use paperclip to short the pin on the motherboard connector either - the PSUs come with a adapter that will short the pins. You only need to use 2 PCIE power cables per S3 - no need to use 4 per miner.

Also using EVGA G2 750W units to power AM Prisma (2 per Prisma)

If you happen to be in USA; Amazon has the best prices on the EVGA G2s and their MiR will cover up to 2 PSUs.

I have used the Dell 750W Server PSUs w/ breakbout boards; they get pretty hot; even with the fan turned up.  I sold 2 of tyhem on eBay - kept 2 for spares; so I could setup miners in my office before they go to mining room in basement.

Have you overclocked them? I thought if you ran them with just two cables they would burn up?

[y_boonstra]

No sure I like the idea of using server PSU's.... noisy and I doubt they are very efficient, but hey thanks for the input. Im going to buy ATX PSU's Gold or Plat rated.

I found this video on you tube and this guy has them cross connected each PSU powering 1.5 miners. I didnt know this was possible for the S3+, would someone please confirm its safe.

https://www.youtube.com/watch?v=30-_MVvzgVI

So if I got the EVGA SuperNOVA 850 G2 this has, 6x 8pins on the rear so I could power 1.5 miners?


#notafeckingclue  

Most of the times server PSU's are more efficient that ordinary pc-psu and a lot more robuste and tollerant. they are designed to run 24/7 near 100% load. dont trust your feeling base your decission on facts and look it up in this forum.

[psjw4450]

I have been running 2 of my s3 with 1000 watts server psu with no issues.  Another plus is that there is less wires and they are cheaper then a regular psu. 

[Rabinovitch]

You only need to use 2 PCIE power cables per S3 - no need to use 4 per miner.

Really?.. 

[firewire2013]

So this should easy run 4 miners?

[Tupsu]

You only need to use 2 PCIE power cables per S3 - no need to use 4 per miner.

Really?.. 

Yes.

[notlist3d]

You only need to use 2 PCIE power cables per S3 - no need to use 4 per miner.

Really?.. 

Very true.  If OC then suggested 4.  But 2 cords can easily do the 220 or so watts each.  Just have to make sure to plug one into each blade. 

[tripppn]

If he OCs the S3+s with 2 on an 850w wouldn't he be pushing the PSUs to the limit?  I would get at least a couple 1kW PSUs if I were you.  You'll get better efficiency from the PSUs that way.

[Soros Shorts]

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

You could run on 3, but the load won't balanced across the 2 cards - one card will only have 1 cable powering it and that cable will have the highest risk of melting.

You could buy PCI-e splitters and run 3x PCI-e cables (2 + 1-into-2) per S3 miner. That way you can balance out the odd cable across the 2 cards.

[klondike_bar]

Hello

So I have 4 x S3 miners coming next week and I’m just about to buy the power supplies. I was thinking two Corsair HX850 (850Watts), only snag is they have 6xPCI-E 6 connecters and the miners take four each. Would like to over clock them abit and concerned the wire will heat up to much.
http://www.corsair.com/en-gb/psus/hx-series

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

Looked at this guide which is great but isnt that detailed.
https://bitcointalk.org/index.php?topic=702653.0


Cheers 

Its better to buy an server PSU wich is more efficient more reliable and much easier to exchange when the break down. All you need is a server PSU + a breakout board.

I have got an IBM DSP2000 PSU wich can go to 2500W or 200A on the 12V rail.. no PC-PSU can beat that (bought it for $ 45)

Interesting, are the server PSU's even better than the 80 Gold Rated ATX PSU's. I have seen on youtube some guy tested a crappy PSU against a Corsair and the difference in power usage at the wall was 120watts! The crappy one was pulling 470watts and the Corsair was pulling 350watts thats alot if your farming.
Do you have any brands of server PSU and breaker boards...im in the UK.

god no. ATX Gold is way better than a lot of server PSUs, particularly the Corsair series. I own an HX850 in my GPU rig and it holds its own. Quiet and power efficient. I have no concerns about it being 90%+. Most server supplies ive seen though are extremely loud, the custom cabling can be an issue to solder or source parts, and often the best deals are on used/refurb units that may not stand up to standards after the original usage.

That said, server supplies are good if you want to save some money (which IMO quality PSUs have resale value and work better/longer than server gear) or where PSU space is an issue and high-density gear is an issue. But for the home miner with a pair of S3+ miners, the HX850 with 6 cords spread between the 8 slots (4 would do, but why not all 6 ) is sufficient for stock speeds, but you wont be able to overclock, as anything over 390W/miner (about 480GH/each) will start pushing the PSU near limits and lose 2-3% efficiency. To overclock you should use an HX1050 or better

[klondike_bar]

I know they can run on 2, I’m wondering if I could connect three to each miner or will it only work in arrangements of 2 or 4?

You could run on 3, but the load won't balanced across the 2 cards - one card will only have 1 cable powering it and that cable will have the highest risk of melting.

You could buy PCI-e splitters and run 3x PCI-e cables (2 + 1-into-2) per S3 miner. That way you can balance out the odd cable across the 2 cards.

just throwing this in: I sell spliters perfect for this (see link in my signature) Its a 1->2 Y-shaped PCIe cable made with quality 18awg, 6" per arm (12" total length when spread). Can easily handle 140W/arm, more than enough for the S3+