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1421  Economy / Services / Re: [BTC 0.01] BTC Guild signature card to show off forum stats as well as yours ! on: May 11, 2014, 09:56:28 PM
Thx to a very talented coder here on the forums the signature now has in my opinion everything it could ever need with the latest addition of blocks found yesterday, today and the time of which the last one was found.

Please see original post for current looks !

Ty.
1422  Bitcoin / Pools / Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers on: May 10, 2014, 04:02:44 AM
Could we have a lower auto withdrawl amount? Even if it can only trigger once every 24 hours?
Why, that would just cost you more in fees.

I wouldnt mind seeing an option to bypass auto withdrawls though and just have one payment triggered per day at a user specified time that cashes out your full balance minus change / last 6 digits.
1423  Bitcoin / Pools / Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers on: May 08, 2014, 09:22:48 PM

Height   Age   Transactions   Total Sent   Relayed By   Size (kB)
299768   2 minutes   382   1,978.28 BTC   BTC Guild   207.37


Looks like it's finally over

Ya with the block before that being 8.5hrs ago ;-/
1424  Bitcoin / Pools / Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers on: May 08, 2014, 02:50:29 AM
I'm not sure I have caught every post on this issue but I believe I saw a ways back that it was said that this miner had moved from eligius to BTCguild and as a person who has been mining on eligius for months I can say that the luck hasn't looked so good over there for a while.  It's too early to say if it is turning around but it sounds like whoever this is had to know before they moved here.  If they really can't fix it, then I imagine they will move to another pool and keep on scamming.
That would be my guess.  Which pool should we refer them to? Cheesy
Ghash
1425  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 08, 2014, 12:46:24 AM
Yeah assumming your numbers are correct you have 3 units @ 1440W ea and 9 units @ 100W ea for total of 5220W.  Keep in mind is mind that 5220W is 18,000+ BTU/HR of heat which will need to be removed.  If it isn't removed the temp will continually increase.

So if the door is shut then you are going to need to cool most of that with the window unit (the house AC unit isn't going to run continually).  I don't know if they make 18,000 BTU/HR Window AC Units which run on 120V and use less than 15A.  If they don't you may need to scale back.  Without an AC unit you would need one massive (and loud) fan) to exhaust that heat from the room and bring in "cool" summer outdoor air.

Looks like fans by themselves, even with one going out and the other in and almost opposites of the are wont work.

So looks like I will have to try the AC thing, don't have anything in the way of 18k BTU window AC. But I do have a floor model AC on wheels I almost forgot about. I checked it earlier and the sticker rated it 12k.

Sad part is out house doesn't have regular AC. So... if I can close off the laundry area with a door to seal it off from he kitchen, I'm hoping the 12k AC I have will do the trick by itself.

I could try to use a window AC as well, it's rated 5,300 but I don't ant o chance tripping the regular breakers they'd both be on. Maybe I an use my killawat on the floor model tomorrow to check it out.

But what do you think of the 12k floor model by itself ?

Edit: So this eBay sellers on a bunch of f'in crack !

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=111348176399

Had listed at $60, no one bought it, told him I would buy it for $45 since it's a heavily used / aged PDU. HE responds by saying it's already below market value. So what's he do when the listing ends with no interest and one watcher which was me ?

He relists it with a $15 increase at a new BIN of $75... how stupid can some people be.

So ya, while I need a 12port PDU, I'm also not gonna bee a dumb ass and get ripped off.

Any other thoughts on a good 12 port PDU DeathAndTaxes ?

Say something I could get $50 or less shipped ?

Preferably something that doesn't have restrictions like 12a per row of plugs since with the way some of the equipment breaks down will mean I can't use all of it if there's amp restrictions per row of plugs.

ex: Two rows of 6 plugs for total of 12.
1426  Economy / Goods / WTB: AP9571 PDU... anybody got one that works ? on: May 07, 2014, 01:14:43 AM
Like the title asks.

Cheapest one on eBay is $60 was hoping for maybe something like $40 shipped.
1427  Bitcoin / Pools / Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers on: May 06, 2014, 10:55:56 PM
Wow ... the pool speed has dipped hugely from a couple of days ago.


Holy shit dude... 6.82 Ph
1428  Bitcoin / Pools / Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers on: May 06, 2014, 03:58:00 AM
People keep mentioning "low difficulty" as if this made a difference? I was under the impression that the difficulty of a particular hash does not have bearing on whether it is the "solve" for block hash or not, that even a GPU still has the slightest chance of catching the correct timing and submitting the block solving hash, however unlikely it may be.
I think you might have misunderstood my point.   I probably am not expressing myself clearly.
 I do not mean the difficulty you are referring to.  
I do not mean a malicious withholding attack (that is not in the attacker's financial interest).
I am referring to a machine that was made but has errors either in the chip or the firmware that means it gives valid solutions to work UP TO A CERTAIN POINT.   So, when you run tests on it on OLD blocks, it solves them.   But, it has some flaw that prevents it from solving blocks as difficulty increased.   So, it essence it is now USELESS but still produces valid work (but the best share it sends is substantially below the current difficulty -- so it never solves a block).    This would be very much like what entropy referred to as a 46 card deck (when you are expecting to see 4 kings every 52 cards).

Is that clearer?   So, not some purposed withholding of solutions just incompetence.   Think of the people who have made miners (BFL, Avalon, Hashfast, KNC, Cointerra).   They have all had huge time constraints and failures.    Is it so far fetched that one of them (or someone else) made 3-10 PH/s of miners that "work" but do not solve blocks at these levels?

This is one of the things I've been discussing with the other pool operators.  The bad luck trend for BTC Guild and Eligius seemed to start around the time difficulty crossed 2.1b.  This is the limit of a signed 32-bit integer, one of the most common numeric variables used for programmers.  It's quite rare that people need > 2.1b (4.2b for unsigned).  The difficulty, growing exponentially, ramped up to this number extremely quickly.  I realized that BTC Guild's internal reporting used a signed 32-bit int for displaying difficulty on a status screen.  I wasn't sure if the program would crash or simply loop around, so I did server maintenance around ~1b diff to update it to use a double variable instead.

The problem here is that we've been unable to identify any hardware that is broken in this manner so far.  It doesn't make sense that such an error would even happen at the hardware level, and most ASICs use cgminer/bfgminer, which we know is not the source if there is a problem of this nature.
So does this mean that there's an extremely rare chance we might be able to improve our luck ?

Which if we do, would you share it with the other pools heh
1429  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 06, 2014, 03:53:19 AM
Still trying to figure out if two window fans will be enough provided the 5,220w figure doesn't go any higher than that.

You ever experiment with a window fan setup using two windows, one to draw and the other to exhaust ?

The heat should with luck be drawn out quickly and not be able to build up with where the units will be sort of diagonal to the ehaust window.

But then there's the issue of the outside air temp being drawn in ;-/
1430  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 10:35:40 PM
Well, there's two windows, one which wold sort of be behind the units that I can put a window fan in to exhaust and then the window AC to cool, so between that, after I put the door up I should be in a sort of sweet spot.

If you have two windows you may want to experiment with using two fans (one drawing "cool") outside air in and one forcing the hot miner air out.   Using an AC unit and an open window is probably not going to work well.
I'll try that but why would you say the window AC wouldnt work too well ?

It's got the side blades that pull out to close off the openings on the side.

I mean ya, it wouldnt be air tight bu it should cool a good bit with one window having an exhaust fan blowing out to draw hot air.

Edit: Window fans are same way, side blades that pull out to block openings to the side.
1431  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 10:28:32 PM
Well, there's two windows, one which wold sort of be behind the units that I can put a window fan in to exhaust and then the window AC to cool, so between that, after I put the door up I should be in a sort of sweet spot.
1432  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 09:51:01 PM
Ty for all of this so far, got some new hard numbers.

So here's where I stand so far...

The X3 is made up of two 1Th module at about 1,440w each which the guy on the BA forums worked out to about 6.26a each. So for the X3 as a whole and one compensated module it would be 18.78a

Quote
120A x 12V = 1440W. Now if we forget loses and just use a bit of Ohms law 1440W/120V = 12A so this is the drain on your incoming 120V supply. If your voltage is say 230V then the drain is only 6.26A most household distribution boards will have at least a 60A main fuse on the incoming supply in the UK.

This is what was said about the suspected amperage of the X1's and I have 6 bought and 3 compensated coming.

Quote
I can’t remember how big the X1 supply was. Let’s just say it was 100W for example. The maths goes like this; 100/230 = 0.43A so assume each X1 will draw something like 0.5A Max.

That being said, assuming 0.5 amp's per X1 I'm looking at 4.5 for 9, total that with the suspected amperage of the X3 plus compnsated module and I'm looking at a total of 23.28a which is just under the 80% constant usage of 24a and would work out perfectly for the AP9571 PDU.

It just means that I will have to forget the Avalon though since the standard outlet it's on now I will need for an AC unit for the room all off this will be going in. It's about 5' - 6' wide and about 20' - 25' long so it's not a standard laundry area like a closet type setup.

Only thing that will fudge the cooling is the open door to the kitchen area but is easily solved by putting back a door that use to be there and then putting a window AC in the window in the laundry area with a setting of about 60f.
1433  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 09:30:36 PM
There is no 60A PDU anywhere which uses a L6-30 plug.  A L6-30 plug is a 30A plug designed to connect to a 30A outlet designed to run on a 30A branch circuit and be protected by a 30A breaker.  In theory there are 50A and 60A PDU but not only are they expensive the outlets are also incredibly expensive.  In most cases it is cheaper to just use 2 or 3 30A (derated to 24A usable) PDUs.

That being said your outlet, wiring, and breaker can't safely handle more than 30A (24A continually) so that is your hard limit (regardless of how many PDUs you get) unless you have additional branch circuits run.   Also 60A @ 240V = 14.4 KW of power.  You would need something like a 4 ton AC unit running to remove that kind of heat (in addition to house's normal cooling requirements).  I don't see you doing 14.4 KW in a laundry closet.   I did a 9 KW GPU farm in by garage (powered by a pair of NEMA L6-30 outlets) and it required a dedicated AC unit.

If you just need one or two additional outlets (and total load is still under 24A) they make "C13 to C14 Y cables".
Maybe I'm confusing range with dryer, since I read one of them is like 50a or something.

Also, by branch circuit you mean additional outlets on their own breakers like the existing dryer outlet ?
1434  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 08:59:34 PM
Hey DAT, new question for ya... got a few hard figures now.

Looks like I will need something closer to a 60a PDU to power everything since I'm looking at close to 19a for the X3 plus compensated module I will be running.

So you got any thoughts on a nice PDU with at leas 13 outlets that's higher than 24a so in case I do need a "bigger" PDU I can get it, but also has L6-30 for a plug ?

Ty.
1435  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 04:50:14 AM
The place I always recommend for cables (wish they would accept bitcoins)

http://www.monoprice.com/Search/Index?keyword=c13+to+c14

The cable you are looking for is a C13 to C14.  C13 is the end that fits PC power supply.  C14 end fits the PDU.
Sweet, thx for all the help so far !
1436  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 04:17:11 AM
Most PDU comes with pretty long cords.   Look for a AP9571 on ebay.  I can't remember exactly how long the cord is but I am sure it is more than 10 feet.  I have a couple I could sell but they are dirt cheap on ebay so you can probably get one there.   If you are lucky you can find one under $30 but if not under $50 for sure.   They are pretty expensive new but APC made like a billion of them in the 90s and 2000s so there are always tons of old data center surplus floating around.
http://www.ebay.com/itm/APC-Basic-Rack-Power-Distribution-Unit-AP9571-208V-/111341279177?pt=US_Power_Distribution_Units&hash=item19ec7517c9

Cheapest one is $60 but I like the mounting holes, since I don't have a rack I can still fix it to the wall.

Only curiosity right now is that the equipment I have coming might have standard plugs then I will need to buy PDU adapters. You may end up saying eBay but where, just in case, might a good deal be for say 12 of them ?

Lol, I just noticed but that PDU would work out perfect, 12 outlets for 12 pieces equipment.
1437  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 04:00:17 AM
Yup looks like that would work.  Me personally I would just save the original outlet, replace it with a NEMA L6-30 and switch back to the original before I move out.  Smiley    However that adapter cable should be fine.  I have seen some priced a lot more expensive but that one isn't too bad (outlet would be cheaper).

Remember continual load is 80% of peak.  So 240 * 30A * 80% = 5,760W (5.76 KW).  You shouldn't push it beyond that.  Most PDU w/ NEMA L6-30 plug will indicate they are rated for 24A (30A * 80%).
Well per last estimated figures, if I ran all the equipment off the same outlet, where as I wa thinking of putting the 9 X1's in another room it might look something like this.

I'm ballparking everything because no one at BA has given firm numbers but this should be relatively close.

9 x 60w = 540w
3 x 1000 = 3,000w

Total being 3,600 if I round up for more wiggle room, the wattage works out, the amperage I have a currently open question on in their forums.

Edit: I would however need like a 10' l6-30 extension if you can recommend a safe one. It may end up being smaller in length, need to do some measuring tomorrow. Plus I'm not sure on cord size for the PDU I still need to buy.

Edit 2: On the note of replacing the outlet, my luck the landlord would just bitch about that to. They dont seem to want much done even if they dont end up footing the bill so this is the easy all be it safe out.
1438  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 02:00:11 AM
I did just find this that should let me use a L6-30 PDU on the 14-30 outlet...

http://evseupgrade.com/?main_page=product_info&products_id=20
1439  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 12:36:16 AM
NEMA-1430

That's what the dryer plug is that we have here.

Other reason I considered this is the landlords being a dick about having a 220 put in that I'd pay or so they can't say shit about me using an existing one for my BTC equipment.

Basically I ill have 9 Prospero X1's and three X3 modules I will need to power for a total of 3.9Th/s

By three X3 modules I mean 1.5 X3's... has to do with their compensation package... just so there's no confusion thinking I will have 3 full X3 units to power lol.
1440  Bitcoin / Mining support / Re: Question about PDU's and a 220/40 line... on: May 03, 2014, 12:22:06 AM
1) You can use a smaller PDU.  Understand no PDU uses the same plug as a dryer so you will need to change the outlet.   Also most dryer plugs in the use are actually split voltage 240 & 120 in a single plug you are only intersted in the two "hots".

2) No.  A 240V PDU outputs 240V.
I know that about the outlet, I just checked, looks like a stander 120 in supersize with an L shaped piece below what would otherwise be thee round prong on a 120 plug.



I've seen / had dryers with both three and four prong plugs.

Not sure how old the plug is / when it was put it but it would have had to be within the last 10yrs, so not sure on how it would be wired exactly.

Speaking of the outlet,  can't I just find a PDU with a four prong plug or don't those exist ?

In regards to 2, most lines are advertised 240v these days but most items like miners are advertised 220, or the sake of argumnt... any issues there ?
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