ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH

[ATCkit]

It looks like you guys like to check different PSU combos while the good old EVGA 1300 with two PCie splitters (put on two single red cables) is perfectly up for the job.

People like to cheap out on PSU for some reason. Personally i'm going pure EVGA. I started with EVGA, then got some server PSUs with high efficiency and a cheaper Gold PSU but its kind of an hassle and the price wasnt much lower than some good old EVGA G2.

They even run great at 100% load, so for a antminer S7, i would definitively go for a EVGA G2 1300. The 10years warranty doesn't hurt either.

Good stuff. When i first saw someone mention that PSU a few days back, I just had to look it up and then go see one for myself. It's a damn nice PSU.

[torepia]

I'm happy with these:

Done the job for 2 years straight!

[VirosaGITS]

I'm happy with these:

Done the job for 2 years straight!

The corsair one is decent, its ridiculously overpriced but its in no way bad, at all. I would use it for sure if i had it, though i would never pay that much for a PSU that has lower end components than the G2, even though it has marginally better efficiency. At full load, it does not really have better efficiency.

It doesn't handle overload as well as the EVGA's, you will not see such a tight ripple effect and as stable voltage(Though completely acceptable). And i honestly don't know how well it would handle 1300-1350W load from OC'ing the miner, while the EVGA G2 1300w will handle it.

Still for the S7 run around normal clock, the corsair one is great.

I wouldn't touch XFX hardware, PSU nor GPU.

[philipma1957]

I'm happy with these:

Done the job for 2 years straight!

The corsair one is decent, its ridiculously overpriced but its in no way bad, at all. I would use it for sure if i had it, though i would never pay that much for a PSU that has lower end components than the G2, even though it has marginally better efficiency. At full load, it does not really have better efficiency.

It doesn't handle overload as well as the EVGA's, you will not see such a tight ripple effect and as stable voltage(Though completely acceptable). And i honestly don't know how well it would handle 1300-1350W load from OC'ing the miner, while the EVGA G2 1300w will handle it.

Still for the S7 run around normal clock, the corsair one is great.

I wouldn't touch XFX hardware, PSU nor GPU.

actually xfx has some good ones.

but for the  two s-7's

 I have 1 evga 1300 g2 and 1 evga 1600 p2 on a 240 volt circuit.

[ATCkit]

Some XFX models are ok if made by Seasonic.  I like use two sites for getting PSU reviews:

http://www.hardwaresecrets.com/

http://www.overclock.net/t/738097/psu-review-database#post9426914

[torepia]

It's overpriced indeed! ^^ Bought it thinking like this: After I'm done with mining, I will have a nice PSU for my desktop computer! But it seems like I'm never done with mining!

I'm gonna use those 3 to power 2x S7's, using add2psu adapters to power the hashing boards first, and the last board + controller on the last PSU.
Hopefully this will give me 66% load on each PSU, this would increase efficiency right? Compared to running 1 on each at 100% load.

[Prelude]

I'm happy with these:

Done the job for 2 years straight!

The corsair one is decent, its ridiculously overpriced but its in no way bad, at all. I would use it for sure if i had it, though i would never pay that much for a PSU that has lower end components than the G2, even though it has marginally better efficiency. At full load, it does not really have better efficiency.

It doesn't handle overload as well as the EVGA's, you will not see such a tight ripple effect and as stable voltage(Though completely acceptable). And i honestly don't know how well it would handle 1300-1350W load from OC'ing the miner, while the EVGA G2 1300w will handle it.

Still for the S7 run around normal clock, the corsair one is great.

I wouldn't touch XFX hardware, PSU nor GPU.

The Corsair is arguably better than the EVGA units quality wise, it's built by Flextronics. I agree about XFX and GPUs, but not PSUs. XFX GPUs PSUs are made by Seasonic. Doesn't get much better than Seasonic in the ATX PSU market. Top 3 manufacturers are pretty much Seasonic, Flextronics, and Super Flower. Super Flower is the OEM on the high end EVGA units.

[ATCkit]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

[ATCkit]

It's overpriced indeed! ^^ Bought it thinking like this: After I'm done with mining, I will have a nice PSU for my desktop computer! But it seems like I'm never done with mining!

I'm gonna use those 3 to power 2x S7's, using add2psu adapters to power the hashing boards first, and the last board + controller on the last PSU.
Hopefully this will give me 66% load on each PSU, this would increase efficiency right? Compared to running 1 on each at 100% load.

 Which 3 PSUs are you using? Anyway, if you're only pulling 66% of each PSUs capacity, you're idea seems logical to me.

[VirosaGITS]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

[-droid-]

If I'm running two on a single 2880w PSU how would I power the controller after the boards, just wait to plug the controller pcie til after I start the PSU?  Is that safe?

My problem unit is only showing 3.60-3.99TH on antpool but my good one shows the 4.8TH, can't check the gui til tomorrow

[RichBC]

It is fine to power the controller simultaneously with the hash boards, the situation to avoid is to power the controller before the hash boards.

Rich

[Prelude]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Indeed. My bad!

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

There's no hit or miss with Seasonic, they're all excellent PSUs. Where have you seen a "do not buy" list of Seasonic PSUs? They can have defects like anyone else, sure, but their power supplies are a known quality; always great. Companies that use or have used Seasonic as an OEM, such as Corsair, XFX, Antec, Cooler Master, and probably a few more don't have a say in terms of what components are used inside the PSU. They can specify the looks of the PSU, the wires + number of connectors, and the modular connector styles, but not much else.

[VirosaGITS]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Indeed. My bad!

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

There's no hit or miss with Seasonic, they're all excellent PSUs. Where have you seen a "do not buy" list of Seasonic PSUs? They can have defects like anyone else, sure, but their power supplies are a known quality; always great. Companies that use or have used Seasonic as an OEM, such as Corsair, XFX, Antec, Cooler Master, and probably a few more don't have a say in terms of what components are used inside the PSU. They can specify the looks of the PSU, the wires + number of connectors, and the modular connector styles, but not much else.

The bigger domain for PSU is on Overclock.net
http://www.overclock.net/t/183810/faq-recommended-power-supplies

You'll noticed the big XFX aren't on the list. There's a bad PSU list with quite a few seasonic on it, too.

[dogie]

Sorry for the delay guys, unit still on the testing rack for a bit but all photography done. You can see a complete 360 degree view here.

[Prelude]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Indeed. My bad!

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

There's no hit or miss with Seasonic, they're all excellent PSUs. Where have you seen a "do not buy" list of Seasonic PSUs? They can have defects like anyone else, sure, but their power supplies are a known quality; always great. Companies that use or have used Seasonic as an OEM, such as Corsair, XFX, Antec, Cooler Master, and probably a few more don't have a say in terms of what components are used inside the PSU. They can specify the looks of the PSU, the wires + number of connectors, and the modular connector styles, but not much else.

The bigger domain for PSU is on Overclock.net
http://www.overclock.net/t/183810/faq-recommended-power-supplies

You'll noticed the big XFX aren't on the list. There's a bad PSU list with quite a few seasonic on it, too.

I don't see that bad PSU list anywhere? The fact that they don't have an XFX in the 1000-1700w list means nothing. They have the following Seasonic units iin the 1000-1700w bracket, and the XFX PSUs are the exact same thing minus the name and case:



I'd suggest you spend some time reading reviews on jonnyguru, which is by far the most trusted PSU review site on the web. The reviews by OklahomaWolf are my favourites.

[VirosaGITS]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Indeed. My bad!

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

There's no hit or miss with Seasonic, they're all excellent PSUs. Where have you seen a "do not buy" list of Seasonic PSUs? They can have defects like anyone else, sure, but their power supplies are a known quality; always great. Companies that use or have used Seasonic as an OEM, such as Corsair, XFX, Antec, Cooler Master, and probably a few more don't have a say in terms of what components are used inside the PSU. They can specify the looks of the PSU, the wires + number of connectors, and the modular connector styles, but not much else.

The bigger domain for PSU is on Overclock.net
http://www.overclock.net/t/183810/faq-recommended-power-supplies

You'll noticed the big XFX aren't on the list. There's a bad PSU list with quite a few seasonic on it, too.

I don't see that bad PSU list anywhere? The fact that they don't have an XFX in the 1000-1700w list means nothing. They have the following Seasonic units iin the 1000-1700w bracket, and the XFX PSUs are the exact same thing minus the name and case:



I'd suggest you spend some time reading reviews on jonnyguru, which is by far the most trusted PSU review site on the web. The reviews by OklahomaWolf are my favourites.

You seemed to have missed what i said; Its branding, actual manufacture plants don't actually all belong to the same company manufacturing them. There are bad psu Series made from the same company and some manufactures batch will use cheaper part, this result in both bath series and bad batch.

It even happen with Corsairs, so saying "Corsair or Seasonic only made good PSU" is inaccurate. This is hella offtopic, but we can go in another thread if you want.

[Prelude]

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Indeed. My bad!

I think you mean to say: " XFX GPUs  PSUs are made by Seasonic."

Sure and i meant Any XFX things, especially GPU and PSU. The problem is not which sticker it has and which company actually did the assembly, the problem i've had with XFX is how random the components used seem to come from. So in term of individual performance in the same serie, one unit may work fine and the other not.

Also for all Seasonic PSU, its either hit or miss. Some are very good, some are on the PSU banned/do not buy list.

There's no hit or miss with Seasonic, they're all excellent PSUs. Where have you seen a "do not buy" list of Seasonic PSUs? They can have defects like anyone else, sure, but their power supplies are a known quality; always great. Companies that use or have used Seasonic as an OEM, such as Corsair, XFX, Antec, Cooler Master, and probably a few more don't have a say in terms of what components are used inside the PSU. They can specify the looks of the PSU, the wires + number of connectors, and the modular connector styles, but not much else.

The bigger domain for PSU is on Overclock.net
http://www.overclock.net/t/183810/faq-recommended-power-supplies

You'll noticed the big XFX aren't on the list. There's a bad PSU list with quite a few seasonic on it, too.

I don't see that bad PSU list anywhere? The fact that they don't have an XFX in the 1000-1700w list means nothing. They have the following Seasonic units iin the 1000-1700w bracket, and the XFX PSUs are the exact same thing minus the name and case:

snip[/img]

I'd suggest you spend some time reading reviews on jonnyguru, which is by far the most trusted PSU review site on the web. The reviews by OklahomaWolf are my favourites.

You seemed to have missed what i said; Its branding, actual manufacture plants don't actually all belong to the same company manufacturing them. There are bad psu Series made from the same company and some manufactures batch will use cheaper part, this result in both bath series and bad batch.

It even happen with Corsairs, so saying "Corsair or Seasonic only made good PSU" is inaccurate. This is hella offtopic, but we can go in another thread if you want.

The only thing I'm arguing is that Seasonic does not make bad PSUs. I still don't know where you got that from. Seasonic doesn't vary their PSUs by batch, and quality is consistent.

There aren't many actual manufacturers of quality PSUs on the shelves. EVGA, Corsair, and XFX have never actually made a PSU. They buy a PSU from a company like Seasonic that builds them, and then they put their names on it.

I'm not sure what you're saying, really. Do you mean sometimes a crappy company like Thermaltake will switch OEMs down the line without changing a PSU's name, only it's internal components? Like starting off with a "TT 800W bla bla bla" made by Seasonic, and then in the future ditch Seasonic for a no name manufacturer with shit components? That can happen with companies like TT.

[dogie]

Dogie's comprehensive setup guide now available in super HD!

 

[dmwardjr]

But miners will want to upgrade their rigs or they will lose money on electricity. the result of  existing miner upgrade alone will likely double the difficulty.

Many are not upgrading.  Many are holding off because they don't see ROI in a decent time.  Also, to double the difficulty, the network hash rate would have to be doubled.  The present network hash rate at my writing is 456,465,126 GH/s [Per Bitcoin Wisdom].  If we were to double it with nothing but BITMAIN S7's, it would take 93,922 BITMAIN S7's.  It would also take 113,646,667 watts to power all of those S7's.  I'm not going to take the time to determine how many SP50's it would take or any other rigs the other "big boys" will be coming out with.  

If the big boys were to choose rolling out with a lot of hash power NOW (during fall and winter) they will only hurt themselves.  Especially, with price of bitcoin where it is presently.  It would be more advantageous for them to wait until late spring to roll out a lot of hardware - adding to the network hash rate.  The price of bitcoin will probably be higher in late spring and they can begin to put the squeeze on each other (big boys).  You heard me right, "...each other."  They would create a hash rate war between each other.  Which, in turn, would increase the amount of time for them to ROI even though their ROI was short [At one time] due to acquiring the rigs at cost.

So, yes, many miners in areas with higher electricity costs will want to upgrade their rigs to avoid losing money on electricity costs.  But this requires them shutting off their old rigs [Effectively taking hash power off the network and adding new hash rate].  It will take a LONG time to double the network hash rate and the difficulty in this manner.  So, existing miners upgrading will not likely double the difficulty.  Who else, besides BITMAIN, is rolling rigs out in large quantity and selling them to home miners and larger outfits?  If you say, Spondoolies, that is only one outfit and there won't be very many large farm miners investing in the price they will ask for the SP50.  Especially, if they ask for more than $35,000 for it.  SFard's isn't busting out efficient gear in large quantity.  The truth is, the home miners and large farms mostly have BITMAIN to depend on and that's about it.  If anyone is doing serious "upgrading," it would be "the big boys."  However, don't forget if they add too much they are in affect creating a hash rate war and it would be counter intuitive for them to do so at present price of bitcoin.

Yes some miners will quit but new big miners will enter this betting game too.  and if bitcoin price peaked near the halving, im sure that alot of existing miner will spend their coin to upgrade their mining rig.

We all know the price of rigs get higher if the price of bitcoin increases at a rate faster than difficulty.  I'm counting on a bitcoin price peak.  That's when I sell my S7's on eBay at roughly the same price I paid for them and wait for the next generation rigs to see if it's worth getting back in the game or not.

btw its not about competing with other miner, its simply how to get more bitcoin from your initial bitcoin investmen. ie: if i spend 3 btc, can i get 6 btc in less than 1 year by upgrading my rig ?

You mis understand.  I'm saying "the big boys" would be competing against one another for market share if they begin to crank out a lot of hardware to add to their farm.  If that's not competition, I don't know what is.

Yes, to determine "ROI" is determine "...if I spend 3 btc, can I get 6 btc in less than 1 year by upgrading my rig?"  I say, "YES," if the price of bitcoin does what I hope it will do and after selling my rigs on eBay.  Also, I don't do my calculations in btc.  I do them in dollars.