Bitcoin Forum
July 07, 2024, 10:28:10 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 [34] 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 ... 291 »
661  Bitcoin / Bitcoin Discussion / Re: Should a bitcoinica clone be put online ? on: July 18, 2012, 05:10:12 PM
We need shorting back.
Aye. Could care less for trading on margin and interest on deposits and open positions.
Uhhh, shorting in this sense is trading on margin. Interest was there to attract capital, but it shouldn't be needed for a well-funded setup.
Without margin, you can "short" by simply selling into the market.
662  Economy / Computer hardware / Re: [WTS] 1300w Rosewill Lightning, 910w PCP&C Silencer, Cooler Master GX750w, Cords on: July 18, 2012, 03:58:13 PM
Added my custom power cord thingy to the OP. It looks like this:




$75  $65 shipped, and includes the twistlock receptacle that mates to the plug that's already attached to the cord.
663  Economy / Securities / Re: How much BTC have you lost out on because you listened to Vandroiy? on: July 18, 2012, 03:36:37 PM
He didn't say he would steer you at all, either. Grin
664  Economy / Computer hardware / Re: [WTS] 1300w Rosewill Lightning, 910w PCP&C Silencer, Cooler Master GX750w on: July 18, 2012, 03:11:07 PM
Wow, what a slew of information! Grin Can I tip you?
Also went to home depot, and figured maybe I just want to stick with 115v. That way I can continue to measure with my kill-a-watts (I can't find any compatible 230v ones). Just means I have to run 2 circuits instead of one big fat one.
lol sure, my firstbits are under my avatar.

For standard voltage upgrades, you can get specialty tandem breakers that go in a single slot. Click the following link for info: http://www.homedepot.com/h_d1/N-5yc1vZbm0f/h_d2/Navigation?catalogId=10053&Nu=P_PARENT_ID&currentPLP=true&omni=c_Specialty&searchNav=true#/?c=1&684=684
However, you have to be sure that your load center ("breaker panel") supports tandems; you can tell whether they are supported by looking at the copper bus bars in the middle - they will be split into a fork or have special tabs if you are allowed to use those kinds of breakers. Unfortunately I can't find any pictures, but any electrician will know what I mean.

For 20 amp circuits, don't use anything smaller than 12AWG. If you can use tandems, that will mean up to 4 20A breaker slots can be added for your operation. 4 x 20 x 120 = 9600 watts, and 9600 watts x 0.8 = 7680 maximum continuous power draw in watts, as per Code limits.
665  Other / Off-topic / Re: BFL butterfly labs Bitforce reflash on: July 18, 2012, 02:39:08 PM
Wait, you tried to relfash a MiniRig to a Single's firmware? Why would you do that?!
Epic derp.

Protip: do the math, bro. Singles are HALF AS FAST per card versus mini-rig cards. Now if you could flash mini-rig firmware to a Single, that would be more epic but it probably wouldn't work.
666  Alternate cryptocurrencies / Mining (Altcoins) / Re: [21 GH/s]P2Pmining.com-Hybrid P2Pool-NO FEE!!!-LTC/NMC/IXC/I0C/DEV on: July 18, 2012, 02:38:20 PM
Wait a minute...Your 2 DNS services got screwed as well as your 2 servers. How does an infection/hacker achieve that? That's like 3 or 4 servers total.
Is there data still on the disks, attacker just making the OS unusable?

The computer I was mining with on your servers won't boot to a desktop. I can't seem to access the HDD, as long as it is connected the system won't boot. I'll see if I can mount the drive after I boot from a live CD.
Probably was running one DNS server on the one VPS, and stored some authentication credentials or certificates on it as well that allowed access to the dedicated box.

Like I said above, I would recommend that you obtain the disks to see what's up.
667  Bitcoin / Development & Technical Discussion / Re: New Sidechain Concept on: July 18, 2012, 02:21:06 PM
Sounds like you just mean merged mining with no independent mining possible. Dianna project was going to do something like that, but pent got lost in an MMM scam and we haven't heard from him since.
668  Economy / Currency exchange / Re: USD between MTGOX <--> DWOLLA on: July 18, 2012, 02:04:50 PM
I have more Gox USD, just under $1k. Seeking Dwolla 1:1. No I'm not selling BTC and $ for $ exchange only.
Me too - mtgox limits me to $1k per day, so for today I shall be needing that much.
669  Economy / Computer hardware / Re: [WTS] 1300w Rosewill Lightning, 910w PCP&C Silencer, Cooler Master GX750w on: July 18, 2012, 01:57:08 PM
I'm really curious about 250v.. I understand almost all PC power supplies can take anything from 100-264v and 50-60hz frequency without no problems and adjust automatically. On my circuit breaker box (uses 1 inch square d breakers), I have 2 empty slots left (they are adjacent to each other). My AC power is normally 110-118v depending on load according to my 2 kill a watts. Is there some sort of circuit breaker I can put in to make it double the voltage (calling it 250v, but its probably less)? Right now I'm pulling 19A + an unknown amount from a 20A 115v breaker, and I'm worried that I'll trip it or burn something out. I kind of want to reliably be able to pull 4000-5000 watts without being in danger of frying any wires or breakers or anything.

Also, I noticed my cords are pretty warm/hot. I got about 1125 watts going through a 14 guage cord on a surge protector/multi outlet/whatever you call them, and it's pretty hot. Assuming the multi outlet can also accept 250v (which it probably cant, not the correct plugin) and I run the same amount of watts on 250v, would the cord be cooler to the touch? Only ask since I heard less amps going through a cord means less heat.

Will running 250v and subsequently lower amps compared to 110v mean less lost power? I know PC power supplies like to have a higher input power for efficiency, just wondering if there will be other places for power to be leaked in the form of heat, such as cords, circuit breaker, outlets, etc

Sorry if I'm talking like a noob, I don't know how to describe the situation correctly. Also sorry for asking so many questions. I just feel I need to reliably supply more (and better) power to my rigs. drawing 2100 watts from a 15A 115v sockets sure feels wrong.. even though the circuit breaker was switched with a 20A so it doesnt trip so easily.
I've got just the thing. I built myself a higher-voltage distribution system, although I spent too much on it by buying everything at retail instead of ordering it all over the internet for cheaper. It consists of the following components:

Raco modular metal boxes - you can remove the sides and bolt them together.
P&S Legrand plugs - chop the end off of your existing cords an bolt these on. 6-15P for 15 amps at 250V.
20 amp 250V outlets - HD doesn't carry 15A versions, but that's not a problem since it will work with both 15 and 20 amp plugs.
Sectional wall plates - 2 of these, they go on each end. HD doesn't have them.
Sectional wall plates - 4 of these, they go in the middle. HD doesn't have these either.
20A 250V 3-pin twistlock connector - L6-20P P&S Legrand.
25 feet of SJOOW 12AWG 3 conductor cable - Cerrowire.

It looks like this:



You mentioned you have a Square-D panel. Likely, it is a QO type home load center, so you would need this breaker to fill those 2 spots: http://www.homedepot.com/h_d1/N-5yc1vZbm16Z684/R-100032386/h_d2/ProductDisplay?catalogId=10053


In regards to why you would want to use it - yes, higher voltage means less heating of the wire because of the lower amperage. As a rule of thumb, you can double the voltage to get half the amps. In practice however, computer powre supplies tend to be a few percent more efficient at higher voltage, so you would actually be using less than half the amps at exactly double the voltage. The greater efficiency will directly result in fewer watts being used, although the actual reduction will be fairly small and may or may not be worth the switchover in terms of payback and profitability.

Generally, a little cord heating isn't a major issue, but if it feels hot to the touch, I would start to get worried. Additionally, mining is a continuous load, so you should only be using 80% of the breaker rating as per Code. 15 x 120V = 1800 watts per 15 amp breaker at full power, and 80% of that would be 1800 x 0.8 = 1440 watts continuously. If you switched to a 20 amp 240 volt breaker, the calculations would be like this: 20 x 240V = 4800 watts full power rating, and then 4800 watts x 0.8 = 3840 watts for a continuous load, as per the Code de-rating.

I don't know how close your panel is to your mining operation, but I would not recommend that you use your existing wiring with a new breaker. If it has a 15A 120V breaker on it now, it is likely 14 AWG, which is too small for an upgrade. That's one of the reasons I built my power strip with a 25 foot cable. Additionally, you could replace my 12AWG SJ cord with some 10AWG of almost any type, and switch to a 30A breaker, but this would probably be a Code violation since each of the outlets is rated for 20A max, not 30A. If you wanted to go 30A at 250V, you would probably want to start over with a commercial PDU and special 250V IEC connectors, instead of my homebrewed setup.

Anyways, I can offer this power strip to you for about half of what it cost me to build, which would be about $75. You might be able to match that by ordering all the parts on eBay or somewhere instead of buying them at Home Depot.
670  Economy / Marketplace / Re: Intersango Exchange on: July 18, 2012, 12:44:33 AM
Maybe you should reduce the font size to save disk space.
671  Other / Off-topic / Re: Reply to the above post with a lyric line. on: July 17, 2012, 08:03:15 PM
Your sperm's in the gutter - your love's in the sink.
She told me she loved me - she said it with a wink.
672  Other / Off-topic / Re: Very interesting, a must read. on: July 17, 2012, 07:57:53 PM
I just caught it on todays news a few minutes ago from this post.

Combo of gold and tea may effectively treat cancer better than chemo

http://www.foxnews.com/health/2012/07/16/combo-gold-and-tea-may-effectively-treat-cancer-better-than-chemo/
So could I get totally shit-faced on goldschlager and tea, and never have to worry about cancer again? Sign me up!
673  Other / Meta / Re: Where to Open Dispute ? on: July 17, 2012, 07:48:33 PM

I want to Complain about 1 user i made a deal with him on 13th July but still he is not sending me payment ! please any info will be helpful to me

Regards'
PTseller
In the trading discussions subforum: https://bitcointalk.org/index.php?board=8.0
674  Economy / Trading Discussion / Re: How CoinPal avoided PayPal fraud on: July 17, 2012, 07:06:05 PM
Excellent writeup, mndrix. And I can't believe that PayPal would willingly throw away business from someone such as you that was so careful and diligent about fraud.
675  Economy / Investor-based games / Re: MMM-2011, how eerily similar........... :rollseyes: on: July 17, 2012, 06:56:57 PM
MMM-2011 is so last year. Don't forget to get on the brand new gravy train of what is now known by the spiffy new name... MMM2012! Roll Eyes
676  Economy / Speculation / Re: Pirate Manipulation behind the recent price spike? on: July 17, 2012, 06:42:07 PM
Unless we have cold hard evidence(TM) from mtgox, pirate is just making shit up.
Sounds like something he would do, too, just to fuck with everyone. Grin
677  Economy / Trading Discussion / Re: KYE (Know Your Exchange): BitFloor on: July 17, 2012, 06:37:30 PM
Please point me to an exchange that does accept them. I know of none.
Well, you've seem to discovered on your own the problem with the current Bitcoin ecosystem in the USA.

How about turning your question around:

Can you name any reputable, well known organization in the USA that refuses to accept USPS money orders?

Or maybe differnet way:

Think of all the payees in the USA that accept the payments under $1k and sort them into two group: those that accept USPS money orders and those who don't. Now sort them into reputable and disreputable. Do you see the correlation and overlap?

If it's such a monumental problem that you make it out to be, perhaps you should be the first to create an exchange that uses them? Actually, quick tip: don't bother, because you are the only person I have ever heard ask for such a thing, so I can't imagine a sustainable demand for it.

I don't see any problem with using MoneyGram via Bitinstant/ZipZap, other than a few fees, and it would seem to achieve what you are looking for, mostly, as far as I can tell.

Honestly, I'm not really sure why you have a bee in your bonnet in regards to postal money orders at all.
678  Economy / Trading Discussion / Re: KYE (Know Your Exchange): BitFloor on: July 17, 2012, 05:49:25 PM
Please do not provide misinformation about our supported deposit methods. We do NOT accept postal money orders. Please refrain from speaking on behalf of our exchange about our deposit options.

We encourage all our users to fully understand our deposit methods and give suggestions to others about how best to use our deposit methods, however we do not encourage the spread of false information about what our deposit methods are. Users are strongly encourage to verify with Bitfloor support and/or the Bitfloor website before assuming anything about how you can deposit funds into your account.
I just quote it for the future reference.

The red flag is "We do NOT accept postal money orders."

Anyone still willing to use BitFloor should spend some time reading the additional ACH/EFT disclosure that comes with their account. It is almost as long as the basic disclosure because you'll going to voluntarily relinquish some protections.

Please point me to an exchange that does accept them. I know of none.
679  Economy / Trading Discussion / Re: My bitcoins disappeared from a secured wallet on: July 17, 2012, 04:58:04 PM
Thanks so much guys, I realized that this was false alarm as I was looking at the wrong wallet file, my bad :-/
lulz
680  Economy / Service Announcements / Re: BitLasers.com - Handheld Lasers and accessories [BLUES IN STOCK] on: July 17, 2012, 04:53:19 PM
Can you get hosts that have a side momentary button instead of a maintained endcap button?
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 [34] 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 ... 291 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!