S3+ Bitmain Miner Power Arrangement

[daddyfatsax]

Thankyou all for replying

Ok, it looks like there is some debate on what better, server PSU or ATX PSU. I can’t find any Watt readings at the wall for server PSU on YouTube, just ATX PSU so I don’t really have much to go from in form of statistics.
 
In the UK electric is no cheap and even though an AXT PSU costs £70-80 more, over the duration of its use, I’m thinking the usage will be lower.

What about a pair of 1000W EVGA SuperNova G2 Full-Modular 80 PLUS Gold ATX-PSU. Looking at the picture it has 8 slots for power.

Am I correct in saying, use the VGA and CPU slots do they provide the same power output

http://www.evga.com/Products/product.aspx?pn=120-g2-1000-xr


:SNIP:

The Dell 750W PSU's are just as efficient, if not more, than most ATX PSU's. They are loud, so if that is a concern, an ATX PSU is what you should get.

The EVGA PSU you are talking about would be great for 2 S3's over-clocked. You only need 2 PCIe per S3. If you want to use 4, go for it.

DO NOT USE THE CPU PLUG. Only use the red VGA plugs.

[firewire2013]

Thankyou all for replying

Ok, it looks like there is some debate on what better, server PSU or ATX PSU. I can’t find any Watt readings at the wall for server PSU on YouTube, just ATX PSU so I don’t really have much to go from in form of statistics.
 
In the UK electric is no cheap and even though an AXT PSU costs £70-80 more, over the duration of its use, I’m thinking the usage will be lower.

What about a pair of 1000W EVGA SuperNova G2 Full-Modular 80 PLUS Gold ATX-PSU. Looking at the picture it has 8 slots for power.

Am I correct in saying, use the VGA and CPU slots do they provide the same power output

http://www.evga.com/Products/product.aspx?pn=120-g2-1000-xr


:SNIP:

The Dell 750W PSU's are just as efficient, if not more, than most ATX PSU's. They are loud, so if that is a concern, an ATX PSU is what you should get.

The EVGA PSU you are talking about would be great for 2 S3's over-clocked. You only need 2 PCIe per S3. If you want to use 4, go for it.

DO NOT USE THE CPU PLUG. Only use the red VGA plugs.

Great advise about the CPU plug , I was woundering about that. So even with the EVGA PSU im stuck with 6 connections. Would be nice to have a 1000 watt PSU with 8 VGAs  

I do plan on over OC'ing, I really dont see any reason not too.

If there's four slots when I assume its best to use all, I know you say they will be OK with just two OC'd, however BITMAIN must have manufactured them this way for a reason.

The noise could be a concern with a server PSU, im setting this up over at my dads in the loft conversion which is direclty above his bedroom lol (his leccy is cheaper then mine)..  

[daddyfatsax]

OC'ing an S3 to 500GH/s makes them run around 400W. So that is only 200W per plug, again you really only need 2 plug per S3.

If noise is a concern I personally would get the EVGA PSU's. I have 4 of the 1000W PSU's myself. The 10 year warranty is unbeatable.

edit: Link for reference https://bitcointalk.org/index.php?topic=699064.msg8604862#msg8604862

[Gabesz8208]

If you want a cheap solution go for Dell 750W server psu-s.

They can handle 2 OC-d S3 at 820W. (230V)

2 connections on one S3.

But please don't trust me, I have no pictures. 

[IITravel01]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

[visdude]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connections) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures:  

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

[firewire2013]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures: 

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

[visdude]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures: 

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

Yes, you're definitely missing something.

[firewire2013]

Bitmain S3+ Power Cable Layout
Just drawn the below using ultra sophisticated...paint   I assume this layout would be best of both worlds and best usage of all VGA slots



http://www.ebay.co.uk/itm/EVGA-PCI-Express-6-Pin-to-8-Pin-Graphics-Card-Power-Adapter-Cable-2x-6pin-to-8-/251678823374?pt=UK_Computing_Sound_Vision_Power_Cables_Connectors&hash=item3a993a13ce

[IITravel01]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures:  

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

Yes, you're definitely missing something.

You must have some mighty efficient S3's, here's what my Overclocked S3+'s consumed AT THE POWER SUPPLY.  
237.5M will use about 385w
250M will use about 410w
So no, when Overclocked they do not fall within specs.

Two other reviews online I read had similar results.

[firewire2013]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures:  

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

Yes, you're definitely missing something.

You must have some mighty efficient S3's, here's what my Overclocked S3+'s consumed AT THE POWER SUPPLY.  
237.5M will use about 385w
250M will use about 410w
So no, when Overclocked they do not fall within specs.

Two other reviews online I read had similar results.

Agreed

[klondike_bar]

You can use only 1 pcie slot per board with no issue. I've run overclocked s3/s3+ units this way with EVGA 1300, enermax 1050, ultra 800, and an eternal 1350.

All do it without a problem. When possible I double up, but it's not really necessary. The cables can handle the load without issue on a quality psu. If not, the cable will be noticeably warm in under 10 min. Easy to test.

I sell good quality pcie splitters in my signature link if you really want to use splitters, but it's not required in my experience for the s3

[IITravel01]

I just set up another rig, its got 3 S3+'s underclocked to 218.75M with a EVGA 1600w P2 (Platinum).  The case has 10 case fans on a fan controller (controlling 6 of the fans).  The fan controller and the 10 fans are probably using about 25 or so watts.  The Kill-A-Watt at the socket (about 118.5+v) shows 1,127watts.  That's about 1,100 watts for the 3 underclocked S3+'s.  So that's about 365watts per each at 218.75M, at the wall.  If the power supply is about 92-93% efficient, that means each is using about 340watts at the power supply.

[visdude]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures:  

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

Yes, you're definitely missing something.

You must have some mighty efficient S3's, here's what my Overclocked S3+'s consumed AT THE POWER SUPPLY.  
237.5M will use about 385w
250M will use about 410w
So no, when Overclocked they do not fall within specs.

Two other reviews online I read had similar results.

Hmmm...

Like firewire2013, you obviously are missing the fundamentals when figuring out PSU wattages/specs/performance.  Since it is so fundamental/basic when it comes to dealing with PSUs in relation to the devices they are powering, I refrain from spoonfeeding to give you both a chance to learn it yourselves the proper way through sound research and hard work.  However, I'm glad to offer hints to hopefully point you to the right direction:

-AC > DC conversion
-PSU efficiency
-WAC from the wall vs. WDC from the PSU
-carefully reread the first paragraph in my first link

I think those are more than enough hints to get you going.

[IITravel01]

I believe that each 6-pin connector is rated industry standard at 192watts max., which the S3+ falls under per blade at default speed, but once you start overclocking if falls outside of spec. and that's why it is recommended to connect the 2nd pair of 6-pin connectors if you OverClock.  So don't listen to those that say it's OK, it may be OK for them but it's not designed to do that and if you have the 2nd pair of connectors then just attach them.

At an ambient room temperature of 29C (84F), an S3 oc'd to 250M requires around 360WDC from a PSU; 180WDC per blade.  Therefore, one power input per S3 blade is still within the 192W max capacity spec of a 6-pin PCIe power harness (Mini-Fit Jr. power connector with 18-gauge wires).  I have oc'd my units to 250M (though I have been keeping them at 243.75M since it seems to be the sweet spot) using Corsair CX500 PSUs (only two PCIe power connection) with no issues whatsoever and the PCIe power cables/connectors are barely warm to the touch.  They've been continuously hashing for almost three months now.  Do not take my word for it though; go with the figures I provided above.

...and I do have pictures:  

https://bitcointalk.org/index.php?topic=671189.msg8227268#msg8227268
https://bitcointalk.org/index.php?topic=671189.msg8471571#msg8471571

On your first link you say:
Legend:  Tambient/Tdevice/Wattage/Hash Rate

@ 218.75M (stock)
35C/45C/365W/440GHs

@ 225M
35C/45C/378W/453GHs

@ 237.5M
32C/43/400W/478GHs

@ 250M
29C/43C/425W/485GHs

But then you say on this post "S3 oc'd to 250M requires around 360WDC from a PSU"

Or am I miss reading something?

Yes, you're definitely missing something.

You must have some mighty efficient S3's, here's what my Overclocked S3+'s consumed AT THE POWER SUPPLY.  
237.5M will use about 385w
250M will use about 410w
So no, when Overclocked they do not fall within specs.

Two other reviews online I read had similar results.

Hmmm...

Like firewire2013, you obviously are missing the fundamentals when figuring out PSU wattages/specs/performance.  Since it is so fundamental/basic when it comes to dealing with PSUs in relation to the devices they are powering, I refrain from spoonfeeding to give you both a chance to learn it yourselves the proper way through sound research and hard work.  However, I'm glad to offer hints to hopefully point you to the right direction:

-AC > DC conversion
-PSU efficiency
-WAC from the wall vs. WDC from the PSU
-carefully reread the first paragraph in my first link

I think those are more than enough hints to get you going.

Well, if you' want to respond like that, then I'll respond in kind.

And here we have a case of someone claiming they know more than other people including the manufacturer of the product he thinks he's an expert on ("I'll use your product, but you designed it wrong" attitude).  Please don't explain yourself, it shows a lot.  AC>DC Conversion?  That should be included in the PSU efficiency because all AC is converted to DC in the power supply, hnmmm but you have it listed separately.  When a power supply manufacturer lists the efficiency, they include for loss from conversion as well as heat for the rating.  Wall reading vs. from the power supply, well I have both of those listed in my readings, so your response is moot.  Please don't bother rereading your own posts, I think I've given you more than enough hints to your mistakes.  I feel sorry for people that might follow your advise and similar "If the wires get hot after ten minutes... easy to check...", but then if there is problems you have no responsibility to the possible damages your advise caused.

[firewire2013]

Guys please chill out! 

I have decided to go with a server PSU because the purchase cost is so much less. As for overall running cost who knows? Once its all setup I will certainly post my WATT usage to compere against the ATX PSU crew.

I understand its not the S3/S3+ that requires all four to be used for the extra power. The extra two termanils are there just in case a user decides to install low rated cables (Cheap 18awg or 20awg). So the better the cable (16awg) then only two are required.

Feel like im double posting here because I have already mentioned the final design on another post, upto you guys to keep this alive but im out, thanks for everyones help ill see you guys later.

ATX PSU EVGA 1000W G2 x 2 will cost £280 plus possiable splitters and extra VGA cable as per my design early.

Server PSU Dell 2100w will cost £80 including all cables, blocks etc + my time to make them up.

Not the most prettest design but should work great.

[Gabesz8208]

Guys please chill out! 

I have decided to go with a server PSU because the purchase cost is so much less. As for overall running cost who knows? Once its all setup I will certainly post my WATT usage to compere against the ATX PSU crew.

I understand its not the S3/S3+ that requires all four to be used for the extra power. The extra two termanils are there just in case a user decides to install low rated cables (Cheap 18awg or 20awg). So the better the cable (16awg) then only two are required.

Feel like im double posting here because I have already mentioned the final design on another post, upto you guys to keep this alive but im out, thanks for everyones help ill see you guys later.

ATX PSU EVGA 1000W G2 x 2 will cost £280 plus possiable splitters and extra VGA cable as per my design early.

Server PSU Dell 2100w will cost £80 including all cables, blocks etc + my time to make them up.

Not the most prettest design but should work great.

http://kickassconfigs.com/files/4914/1435/6371/bitcoin-psu-layout.jpg

Clever guy! 

That's what I've tried to tell you since the beginning of the thread. 

This psu will be enough for 5 ants.

Just have to do some work. But be careful with the connections at the end of the psu. Have to be tight but if you solder them is the best.

[firewire2013]

Clever guy!  Wink

That's what I've tried to tell you since the beginning of the thread.  Cool

This psu will be enough for 5 ants.

Just have to do some work. But be careful with the connections at the end of the psu. Have to be tight but if you solder them is the best.

Cheers and by 5 ants you mean at stock speed

I plan to OC these mo fo's

[Gabesz8208]

Clever guy!  Wink

That's what I've tried to tell you since the beginning of the thread.  Cool

This psu will be enough for 5 ants.

Just have to do some work. But be careful with the connections at the end of the psu. Have to be tight but if you solder them is the best.

Cheers and by 5 ants you mean at stock speed

I plan to OC these mo fo's

Can make it with OC. 

[IonHammer]

"From another thread i posted in, but it has relevance here,"

I just started S3 mining and went though similar PSU choice issues, in the end i went with 1:1      1 psu per 1 S3.

To give me some flexibility I went with a FSP Raider 750 Watt 80 plus Silver PSU, it has 4 6/8 pin pcie connectors so I can fill all the S3 power connectors,
apparently this allows you to overclock and keeps the unit slightly cooler per given freq.

Secondly, it has a common 12 V rail giving 60 amps which is more than enough for an S3 and allows the PSU to run at around 50% capacity which has an efficiency over 90%.

One thing I have noticed with some Gold modular psu's is they have multiple 12 V rails and may add up to 700-800 watts but only deliver 18 amps (per rail),
 if you power you S3 with one connector per side from a rail like this you are going to have trouble as an S3 needs 24-30 amps depending on who you read.

With lots of PSU's it does chew up more space and power points but you don't have a single point of failure and your not running your PSU at 90-100 % capacity.

Good luck with your PSU hunting.
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