AntMinerS4 $1250 Bitmain's Official Partner - Official North America Distributor

[ISAWHIM]

Might need a dummy-load, or the 12v regulator has no reference-voltage to adjust with. I believe it is the 5v rail, which is not the USB (always-on) 5v. Had that issue with using dual PSU's on some cheaper PSU's. Many new PSU's have a built-in dummy-load and better 12v rail regulation. Normally, the 5v->3v voltage-regulator on the Mobo, and fans, and leds, are the 5v source load.

A few 5v/6v fans is adequate "draw", for the chip to sense the drop, and give better 12v rail regulation. (Usually they just throw a giant wire-wound resistor as a dummy-load.)

Looking at these with interest. A new toy to play with.

[greaterninja]

Hello guys.

We have fixed the ninjatech.org SSL Certificate.

All sensitive information Transactions are now secure.

Very Respectfully,


GreaterNinja

[Darthswan]

Hello guys.

We have fixed the ninjatech.org SSL Certificate.

All sensitive information Transactions are now secure.

Very Respectfully,


GreaterNinja

Thank you.

[blackheart13]

Hi
Checking in since I have heard from you yet. I'm interested in purchasing now however I need to know when you are going to have in stock. I learned today I'm going to have to go out of town for work on Friday. If you can get it out by Thursday or meet up on Friday I'll purchase it now. If not I'll get in touch the end of next week when I get back to see about making a purchase
Thanks

[makngeerwork]

Hi Guys.

     Just to post, I ordered one antMiner from Ninja on Friday, it came in yesterday, from the Dec. batch.   Shipping to Toronto and duty paid on the unit was 85 dollars.  Great customer service!  Thanks ninja.


Happy mining.

[Darthswan]

What is a good PSU for this unit?

[greaterninja]

What is a good PSU for this unit?

Hello Darthswan and Happy New Year.  

I'm a little hungover, but bear with me.
A good PSU for an AntMiner @ 350 MHZ (stock clock) would be a Gold or Platinum 750w to 850W PSU.   The lowest I personally now go is 600-650w.
AntMiners @ 350MHZ pull 360-400 watts and 400w/800w = 50% of load on a PSU, which is when a PSU is most efficient.

If you overclock your AntMiner to say 400mhz, your PSU will pull 460-600 Watts at the wall.  This variance depends greatly on the PSU you use.
AntMiners @ 400MHZ -> 200-205GH/s -->   520watt/1000watt =  52% load.

Gold PSU are about ~91% efficient @ 50% load.
Platinum are about ~92-93% efficient @ 50% load.

Bronze PSU is usually below 80% efficiency even though they may say 85% efficient  (on 125V Circuit).
PSU below 80% rating will pull less than 75% efficiency scores.

Hope this Helps.  

[Darthswan]

Thanks for the reply, I did send you a pm.  If I were to purchase 2 units, would I need 2 separate power supplies, or could 1 bigger one do?  Thanks again.

[blackheart13]

Did payment for 1 a little bit ago. Should be doing additional 2 by Friday morning at the latest
Thanks

[WinterParker]

I am about to order a couple S1's as well.  Do these ship next day?  Sorry I didn't have time to read the whole thread to find out..

Tnx

[greaterninja]

I am about to order a couple S1's as well.  Do these ship next day?  Sorry I didn't have time to read the whole thread to find out..

Tnx

Hello guys, I am almost out of stock.

If you order now it will be on the next batch delivery so it will most likely ship next week.

[Darthswan]

Greaterninja,

I'm getting ready to send you a pm.

[gudmunsn]

Got my 2x December batch antminers as promised last week. I had trouble getting one working, and ninja spent 45 mins on TeamViewer helping me get it setup. highly recommended!

[greaterninja]

Got my 2x December batch antminers as promised last week. I had trouble getting one working, and ninja spent 45 mins on TeamViewer helping me get it setup. highly recommended!

Thank you Sir!   
Guys I am reopening store.  Anything ordered after this post will most likely be delivered next week.

[vadoff]

Ordered some =)

[nairb131]

What is a good PSU for this unit?

Get a gold rated 550w power supply. I have 6 overclocked AntMiners and they pull ~450 from the wall. Power supplies work better the closer they are the maximum wattage.

[tss]

hey.. thanks for everything u do.. i ordered 2 units for january 4th delivery batch during the christmas one day special, before it was extended.  so when will it ship?  next week?

[greaterninja]

hey.. thanks for everything u do.. i ordered 2 units for january 4th delivery batch during the christmas one day special, before it was extended.  so when will it ship?  next week?

Probably Tomorrow . 

[Hippievogel]

What is a good PSU for this unit?

Hello Darthswan and Happy New Year.  

I'm a little hungover, but bear with me.
A good PSU for an AntMiner @ 350 MHZ (stock clock) would be a Gold or Platinum 750w to 850W PSU.   The lowest I personally now go is 600-650w.
AntMiners @ 350MHZ pull 360-400 watts and 400w/800w = 50% of load on a PSU, which is when a PSU is most efficient.

If you overclock your AntMiner to say 400mhz, your PSU will pull 460-600 Watts at the wall.  This variance depends greatly on the PSU you use.
AntMiners @ 400MHZ -> 200-205GH/s -->   520watt/1000watt =  52% load.

Gold PSU are about ~91% efficient @ 50% load.
Platinum are about ~92-93% efficient @ 50% load.

Bronze PSU is usually below 80% efficiency even though they may say 85% efficient  (on 125V Circuit).
PSU below 80% rating will pull less than 75% efficiency scores.

Hope this Helps.  

anyways there are lots of different psu's but most gold and platinum psu's has still 90% efficiency when they are at 80/90% load(if you use 230v outlet)
The best psu to get are the Corsair ax serie, Seasonic(the platinum series) ,the EVGA 1300 g2 and the Lepa G1600(which is really hard to get in Europe)

[SaltySpitoon]

I received an antminer that I ordered from greaterninja yesterday, they are great little units, I'm sure I"ll be ordering more in the near future  

Twas already set up for me despite my obliviousness and I greatly appreciated that. Thanks.