[ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING***

[Keefe]

I think the problem with paralleling multiple PSUs is not only if one is shut off. What if one is trying to regulate at 11.95v and the other at 12.05v? That's like shorting 0.1v. Maybe not disastrous, but probably not a good idea. It also would cause one PSU to supply most or all of the power for the shared load.

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[goxed]

FWIW, I picked up a Corsair TX 850 (http://www.amazon.com/dp/B004MYFODS/) to power a full rig.

Hope it's enough !

To heat the room in winter? I guess you missed the just concluded Avalon mini auction

[Xian01]

FWIW, I picked up a Corsair TX 850 (http://www.amazon.com/dp/B004MYFODS/) to power a full rig.
Hope it's enough !

  this one better one http://www.amazon.com/Corsair-Professional-860-Watt-Platinum-AX860/dp/B00A0HZMKG/ref=sr_1_1?s=electronics&ie=UTF8&qid=1383622795&sr=1-1&keywords=ax860

 Well shit. Already arrived via Amazon.com. I figured it was reasonable. Possibly just barely huh ?

 Think a full rig would cook that TX 850 ? (Probably should have just went with an AX 1200 like my gut was telling me to; was trying to save a few $$$)

 

[mb300sd]

Ultimate power supply, http://www.amazon.com/DELL-POWER-SUPPLY-1570W-REDUNDANT/dp/B0045JOXDW

I use them for everything, miners, heavy duty battery charger, custom sound system... even welded with one once.

Theres instructions to reduce the fan speed, and adjust the output voltage (not for miners) out there too.

[frankenmint]

FWIW, I picked up a Corsair TX 850 (http://www.amazon.com/dp/B004MYFODS/) to power a full rig.
Hope it's enough !

 this one better one http://www.amazon.com/Corsair-Professional-860-Watt-Platinum-AX860/dp/B00A0HZMKG/ref=sr_1_1?s=electronics&ie=UTF8&qid=1383622795&sr=1-1&keywords=ax860

 Well shit. Already arrived via Amazon.com. I figured it was reasonable. Possibly just barely huh ?

 Think a full rig would cook that TX 850 ? (Probably should have just went with an AX 1200 like my gut was telling me to; was trying to save a few $$$)

 

Great now I'm perplexed as to what makes sense to go with - for sure, I'm planning to OC my stuff and to buy an extra set of 120 mm Fans for the top area to circulate air, It seems like 700 should be all that I would need being that 400 GH only required 390 W 195+390 =~585W on an expected hashrate of 600 GH/S?  Maybe 620-640 could push it up to the 650 Watt range right?

So in Total - I'm using a spotswood case - Will be hooking up 6 just 4 120MM Fans, (4 on the sides to pull air away from the boards, and two on the top to push air onto the boards) and am also attaching Superglue lined heatsinks (act as an insulator) onto the voltage regulators using thermal paste.  

http://www.frys.com/product/6301571 was what I was planning on picking up before the package arrives

[xstr8guy]

Ok,

        Which one of you guys sucked up all the H-Cards?  Couple of days ago they were aplenty. Out of stock now. Maybe Dave is just doing some adjusting. There were also a couple full kits available, pre-order now only.  Guess we will see how it washes out.

  All Hboards gone already for that price and btc gone up too.

There were 152 cards available, just a few hours back!!! OOS now.
Full rigs haves changed to pre-order .
Starter (8 were available)  kits are OOS.

One wild guess is that 100TH mine has scooped them up.

I suppose there is some chance that all remaining inventory went to the 100Th/s Mine.  But my guess is that he and Punin are just zeroing-out their inventory for an upcoming price reduction.  I can't imagine that they would want a bunch of outstanding orders if they are planning on reducing the price.  That might result in an angry mod, lol.

[Syke]

I suppose there is some chance that all remaining inventory went to the 100Th/s Mine.  But my guess is that he and Punin are just zeroing-out their inventory for an upcoming price reduction.

I sure hope so. They have a good product, but the price isn't competitive any more.

[AMD FTW]

The XFX 1250w psu is a phenomenal psu and you can check numerous sites that review it. It's based off a seasonic design and works great.

This will run easily 2 bitfury's and is a great price right now. Don't forget to add the 15% off code at checkout and fill out your rebate form.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207020&Tpk=xfx%201250

[Xian01]

To heat the room in winter? I guess you missed the just concluded Avalon mini auction

 On a related note, I moved a Redhash unit into my garage over the weekend now that it's officially getting colder, and it heats up the garage to a nice 77-79 degrees while it's in the low to mid 60's outside.

[mwk13]

I've just received a Bitfurystrikesback v2.3 M-board from Megabigpower.
Is there a link to an rPi image file and H-card installation instructions for this m-board? I'm only familiar with the v1 m-board MBP shipped in August.

Thank you.

[xstr8guy]

I suppose there is some chance that all remaining inventory went to the 100Th/s Mine.  But my guess is that he and Punin are just zeroing-out their inventory for an upcoming price reduction.

I sure hope so. They have a good product, but the price isn't competitive any more.

I sure hope they lower the price too.  I have one rig of each version that I would like to fill up if the price is right... if they plan to continue to sell both versions.

[tom99]

I suppose there is some chance that all remaining inventory went to the 100Th/s Mine.  But my guess is that he and Punin are just zeroing-out their inventory for an upcoming price reduction.

I sure hope so. They have a good product, but the price isn't competitive any more.

I sure hope they lower the price too.  I have one rig of each version that I would like to fill up if the price is right... if they plan to continue to sell both versions.

  you wont see low price maybe in Dec. holiday season.

[xstr8guy]

I suppose there is some chance that all remaining inventory went to the 100Th/s Mine.  But my guess is that he and Punin are just zeroing-out their inventory for an upcoming price reduction.

I sure hope so. They have a good product, but the price isn't competitive any more.

I sure hope they lower the price too.  I have one rig of each version that I would like to fill up if the price is right... if they plan to continue to sell both versions.

  you wont see low price maybe in Dec. holiday season.

Why do you say that?  The resell market has slowed way down.  You can buy ASICs on eBay for less than retail so that tells me that demand has plummeted.  And KNC will soon deliver their lower priced November batch which they are still taking orders for.  So that makes me think that MGP and BFSB would need to drop their prices to stay competitive.

[User705]

They can't drop their prices before they ship all preorders at the old higher price.

[dacman61]

They can't drop their prices before they ship all preorders at the old higher price.

Unless they refuse refunds on current orders that are near shipping within a few weeks...

[Keefe]

It looks like the EU distributor has them in stock now for $336.

[Lloydimiller4]

Does anyone know how to downclock the chips on the new boards? I don't have enough cooling apparently and my heat sinks won't arrive for another week. The chips just keep cycling, the high side of 575GH for my whole rig, and then down to 100GH, slowly, as the Hboards turn the chips off one by one.

The DHCP script did not work for my network, I had to have a friend go in the Pi and help me set up a static IP manually.

Aside from that, the October rig is great. For anyone still waiting on theirs, make sure you have good cooling ready to go. I am looking at some 100cfm 120mm fans right now, but I might get ones a little stronger.

[Keefe]

Does anyone know how to downclock the chips on the new boards? I don't have enough cooling apparently and my heat sinks won't arrive for another week. The chips just keep cycling, the high side of 575GH for my whole rig, and then down to 100GH, slowly, as the Hboards turn the chips off one by one.

The DHCP script did not work for my network, I had to have a friend go in the Pi and help me set up a static IP manually.

Aside from that, the October rig is great. For anyone still waiting on theirs, make sure you have good cooling ready to go. I am looking at some 100cfm 120mm fans right now, but I might get ones a little stronger.

First, get alot of airflow through the cards. A cheap large box fan would probably suffice. If that doesn't solve the problem, you can turn off a few chips on each H-board to reduce the heat and current draw to prevent the regulator from shutting off. Let the autotuner do its thing with the rest of the chips. Do that by creating /opt/bitfury/best.cnf with something like this:

Code:

1	AIfDSo	54
2	AIfDSo	54
3	aifdso	0
4	AIfDSo	54
5	AIfDSo	54
6	AIfDSo	54
7	aifdso	0
8	AIfDSo	54
9	AIfDSo	54
10	AIfDSo	54
11	aifdso	0
12	AIfDSo	54
13	AIfDSo	54
14	AIfDSo	54
15	aifdso	0
16	AIfDSo	54
17	AIfDSo	54
...
256	AIfDSo	54

Restart chainminer after changing best.cnf:

Code:

sudo /opt/bitfury/start-miner.sh

[tacotime]

Does anyone know how to downclock the chips on the new boards? I don't have enough cooling apparently and my heat sinks won't arrive for another week. The chips just keep cycling, the high side of 575GH for my whole rig, and then down to 100GH, slowly, as the Hboards turn the chips off one by one.

The DHCP script did not work for my network, I had to have a friend go in the Pi and help me set up a static IP manually.

Aside from that, the October rig is great. For anyone still waiting on theirs, make sure you have good cooling ready to go. I am looking at some 100cfm 120mm fans right now, but I might get ones a little stronger.

Static pressure is often more important than airflow... I'm going to heatsink my boards and then try 3x coolermaster r4 120mm 2000 rpm fans on my rig tomorrow and then check the chip and thermal regulator temps with a thermal diode and give you guys some data

[Xian01]

Does anyone know how to downclock the chips on the new boards? I don't have enough cooling apparently and my heat sinks won't arrive for another week. The chips just keep cycling, the high side of 575GH for my whole rig, and then down to 100GH, slowly, as the Hboards turn the chips off one by one.

 What was your order # out of curiosity ?