What PSU you use for your antminer S3?

[antminer2014]

Got a couple cheap used IBM 835W server supplies, one per miner but I hope to power 2 more at the next batch. They have the guts to power up without the shutdown surge current. Did I mention they are cheap?
Edit: dumped the server supplies cuz the small fans are way too noisy. Also my fabricated connectors were getting hot. Now using 850W PC supplies and am less paranoid about probs

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[pekatete]

How much "waste of money"?  What's the calculations?

If my calculations are correct, it would cost where I live about .22 per Kilowatt hour = $5.30 per day for 1,000 watts x 2.20 for 6 OC'ed S3's (at about 375watts each = 2,250 watts) roughly $12 per day x 30 days = $350-360 per month x 12 = $4,200 per year.  If it's a direct conversion of .02 or 2%, that = $84 savings (+/- $3).  Am I doing the math correctly, then at 1.5 years you'd be in the black barring nothing wears out, which might be worth it to some from that point on.  Especially if there's other factors I'm not calculating in savings.

$84 savings ($14 per OC'ed machine) per annum in the context of bitcoin mining can be construed as splitting hairs when you factor in difficulty increase (over the projected year) and daily earnings' variations (pool luck) given a constant hashing rate.
But hey, even a $1 saving is exactly that, and pool luck can be to your favour!

[IITravel01]

Here's a couple power supplies that might interest some of you (that are willing to put in some extra money for these features).

http://www.thortechpower.com/product-24.aspx
This Thortech (Geil) Thunderbolt Plus 1200w (GOLD) has a display that shows you info. from the power supply like wattage going through it etc.  (It's single rail, even though some early literature stated multi-rail).  Good for S3's on one power supply if they aren't overclocked.
http://www.amazon.com/Thunderbolt-Supply-iPower-Certified-TTBPK20G/dp/B008BCFZLI/ref=sr_1_2?s=pc&ie=UTF8&qid=1410392221&sr=1-2
There's also a 850w version (although it's mismarked as 1000w on Amazon.com).  It looks like they showed a Platinum version a couple years ago, but it never came out.


http://www.thermaltakeusa.com/Power_Supply/Toughpower_Series_/Toughpower_DPS/C_00002390/Toughpower_DPS_G_1050W/design.htm
Thermaltake has the new DPS G (cheaper that the DPS series that came out last year) series, that when hooked up to a computer via USB cable, will show you the wattage and used power, calculate electrical costs etc. and has a app. also. the top of the line is the 1050w (GOLD).  This will only work if you have it hooked up to a computer though.  Good for 2 overclocked S3's on one power supply, but you'll need a splitter since there's only 6 PCI-E connectors.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817153214&cm_re=1050w_DPAS-_-17-153-214-_-Product

Note, both of these are not cheap power supplies, but if you find that you want something that monitors the power going through it, you may want to consider them.

If money is not a factor with your initial investment, the Corsair AX1500i 1500 Watts Power Supply with Titanium Efficiency (CP-9020057) costs $450+, but if you wanted to keep your power usage down to the absolute minimum, this power supply with 2 S3's (that would be at about 50% load, so peak efficiency) would be it (especially on a 230v line).

[pmorici]

It says it needs 340W at the wall, so what PSU we should use at least to be safe?

Also seems like a lot of manufacturers are setting their W rates really freely. I see chinese 500W PSUs for $15 and other more brand ones for like $70?!

You can use a HP DPS-800GBA 850 Watt server PSU to power two S3's on either stock or over clocked with Gigampz breakout board as described in this thread...

https://bitcointalk.org/index.php?topic=622783.0

They are industrial strength so they don't crap out like some of the cheaper PSUs and the total cost per S3 comes out to less than $40.  Also the 850 Watt rating is 100% available on a single 12 volt rail so you don't have the problem with cheaper PSUs where it is rated for 600 Watts but only a fraction of that can be used on the PCIe connectors.

[sendas]

Im confused on how to tell how much power is going out to the 12V rail.

I have this PSU already, Would it work with my single antminer s3?

Aantec EA500D
http://forums.guru3d.com/showthread.php?t=322679

http://www.antec.com/pdf/flyers/EA500D_flyer_EN.pdf

[pmorici]

Im confused on how to tell how much power is going out to the 12V rail.

I have this PSU already, Would it work with my single antminer s3?

Aantec EA500D
http://forums.guru3d.com/showthread.php?t=322679

http://www.antec.com/pdf/flyers/EA500D_flyer_EN.pdf

It says it has 2 12v rails each can supply 22 Amps.  It doesn't say if the 2 PCIe connectors share a single rail though.  If that is the case then it wouldn't work because is is really only a ~250 Watt PSU.

[Rabinovitch]

It says it needs 340W at the wall, so what PSU we should use at least to be safe?

I use Corsair RM1000 with 2 S3s.

[allcoinminer]

Im confused on how to tell how much power is going out to the 12V rail.

I have this PSU already, Would it work with my single antminer s3?

Aantec EA500D
http://forums.guru3d.com/showthread.php?t=322679

http://www.antec.com/pdf/flyers/EA500D_flyer_EN.pdf

It says it has 2 12v rails each can supply 22 Amps.  It doesn't say if the 2 PCIe connectors share a single rail though.  If that is the case then it wouldn't work because is is really only a ~250 Watt PSU.

The EA500D Antec power supply have 2 +12V rails each one can handle upto 22A.
The two rails are connected to each PCI-E and PCI-E(6+2) seperately.
That means one +12V is connected to the PCI-E connector and the other +12V is connected to PCI-E(6+2) connector.