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1  Other / Beginners & Help / Re: mtgox verifying/payout on: January 27, 2013, 11:21:31 PM
There are a lot of delays right now with getting cash out of Mt. Gox. I also have a pending withdraw submitted on the 10th that hasn't gone through yet.

Do we know the cause?  My withdrawal shows up as confirmed, but is yet to show up in my Dwolla account.
2  Economy / Service Discussion / Re: MTGOX to DWOLLA why so slow?? on: January 27, 2013, 11:19:43 PM
My support emails are now bouncing back with delivery failure notifications.

Is my money just gone now?
3  Economy / Service Discussion / Re: MTGOX to DWOLLA why so slow?? on: January 25, 2013, 03:51:10 AM
Mine is "confirmed" but has yet to show up in Dwolla.  It has been 2 days.  I used the same saved "withdrawal method" as I have in the past and still nothing.

I checked my past transactions and they all showed up within minutes.  Is my money just gone?
4  Economy / Speculation / Re: [Daily Speculation Poll] :: Not to worry the wall at 5.20, is made of solid gold on: January 27, 2012, 03:14:46 AM
Thar she blows!
5  Economy / Speculation / Re: [Daily Speculation Poll] :: Not to worry the wall at 5.20, is made of solid gold on: January 27, 2012, 02:50:38 AM
We are getting close to touching it.

This is much more fun as a spectator sport...
6  Bitcoin / Bitcoin Discussion / Re: Goxed - 15:30 open on: June 26, 2011, 11:28:32 PM
In case anyone was wondering, I successfully added some BTC to mtgox.  That side of things is working fine as well.
7  Other / CPU/GPU Bitcoin mining hardware / Re: Mining accidents having caused physical damage (overheating hw, fires, etc) on: June 02, 2011, 01:51:14 AM
I'll start with one from a friend of mine (who shall remain anonymous): he lives in a place with old 120V electrical wiring. He put a rig of ~1.6kW (~13A), as measured by a kill-a-watt, on a 20A circuit for about half a day, until he started smelling smoke in his apartment, apparently coming from the wiring inside the walls. He completely stopped using this circuit, and now runs his rig on a dedicated 240V circuit. A 20A circuit is normally rated 16A for continuous loads by the National Electric Code, but that old wiring was likely defective and the insulation probably started melting.

That is makes me worry.  I am putting a lot of load on my old house wiring.  The electrics were redone sometime after grounded plugs became standard, but it is still very old.  Yay for 100+ year old houses...
8  Other / CPU/GPU Bitcoin mining hardware / Re: Mining accidents having caused physical damage (overheating hw, fires, etc) on: May 31, 2011, 06:23:22 AM
Typical stuff, cut fingers while working with cheap cases and fingers hurt by fans.
9  Bitcoin / Mining / Re: What Mh/s are you mining at? on: May 29, 2011, 10:51:28 PM
6.2 Ghash/s
10  Bitcoin / Mining / Re: Deepbit offline... on: May 29, 2011, 10:50:09 PM
Deepbit down,

Slush's website is reporting Bad Gateway, but mining still works.  Looks as if the website is getting hammered from people trying to switch.

Looks like its time to do some dust cleaning Tongue
11  Bitcoin / Mining software (miners) / Re: [MINER] Phoenix - New efficient, fast, modular miner **BFI_INT support!** on: May 21, 2011, 06:12:25 AM
I'm getting very strange performance with both kernels.

My command line is:
phoenix.exe -u -k phatk DEVICE=0 VECTORS BFI_INT FASTLOOP=false AGRESSION=12 WORKSIZE=128

and I'm getting exactly, with no variation, 67.28 Mhash/s on a 5870 at 975Mhz.  This is true for both kernels.  changing WORKSIZE and AGRESSION has no effect.

GPU usage is reported at roughly 60% according to GPU-Z.

standard poclbm gives me ~405 Mhash/s...

Am I doing something wrong?

I'm running SDK 2.4 on Windows 7 32bit.
12  Bitcoin / Mining / Re: YouTube Video: Bitcoin Mining: Three Months Later on: May 14, 2011, 12:41:58 AM
I have very jealous of your electricity rates.

I paid .158 up until may.  Now till October I pay .218
13  Bitcoin / Mining / Re: VGA Dummy for my new cards on: May 14, 2011, 12:23:07 AM
I have found I only need 1 resistor per plug.  Going from pin 1 to pin 6.  No need for all three.
14  Bitcoin / Mining / Re: Why is our hashing power declining? on: May 12, 2011, 08:50:46 PM
Warm weather?  Summer electricity rates kick in soon also.

We are getting high enough difficulty to the point where the single gpu miner could have a few problems

1)  Very few coins
2)  Difficulty selling coins (establishing rating, gpg ident, not enough capital for mtgox, etc)
3)  Fan noise is getting old
15  Other / Archival / Re: Pictures of your mining rigs! on: May 09, 2011, 03:09:53 AM
OVerLoRDI, what speccs is there for the 3x5870 rig?

Some MSI board that had 2x pci-e 16 slots, an XFX 650 PSU, sempron, 1gb DDR3.  I'm waiting on another motherboard, I don't think the video card on top of the binder is going to be a permanent.. it might be if I buy another 5870.... but then I'd need another PSU.  I'm using a Corsair 500 watt to supplement the 650 watt.  I might be able to get away with running the whole system on the 650 watt.. but that is dangerously close... so I might buy a bigger PSU, make the 3x setup permanent, then recycle the 650 into another dual 5870 machine.

16  Bitcoin / Mining / Re: Calculating hashes/s from difficulty 1 shares on: May 08, 2011, 09:53:36 PM
I'm unsure about how to calculate it based on the target system.  That is a nuance of bitcoin I am not 100% fluent in yet.

Assuming your math is right, you are stating the probability that your single hash will solve the share of difficulty 1.

Then you'd have to convert the probability into average time for success.  To excel!

I simulated out only 1000 hash pulls so im not surprised I didn't get any success.  Tired 100,000 hash pulls and got overflows Sad

The method that you would use to convert the probability into average time is simulating many many (1,000,000+) hashes, figure out your hash rate (how fast you can generate 1,000,000 hashes) and count your successes.  Sadly significant figures and overflow issues make this sort of calculation in excel difficult.

I think using my math in the 2nd post may be easier.
17  Bitcoin / Mining / Re: ATI Video Cards... Series 5 vs Series 6 on: May 08, 2011, 09:42:29 PM
5870/5970 are more efficient than the 69xx/6990.

The cypress core has 1600 SPs vs 1536 SPs, which is what gives them the edge.  Yes the SPs are different between the 2 cores.  The Cayman core is ~25% bigger than Cypress, thus its power consumption is higher.  Sadly the supply of 5870s and especially 5970s is pretty much gone.  You can pick up 5870s on ebay for cheaper than the unlockable 2g 6950s, so I'd say the used 5870s are a better plan, especially if you get reference design cards.
18  Bitcoin / Mining / Re: Calculating hashes/s from difficulty 1 shares on: May 08, 2011, 08:53:53 PM
I would assume you calculate how long it takes 1Khash/s to solve a share of difficulty 1:

which is 7 weeks, 17 hours, 2 minutes, and 47 seconds on average

convert that into seconds:
4294967 seconds

so lets say you have a card hashing at 350000 khash/s, that well submit a share on average, every 12 seconds.

4294967/12= 358163.91 Khash/s

I'm off by 8 Mhash/s because of the rounding in the math for the average rate of solving a share of difficulty 1.  More precise calculations can be had be had by using this formula and rounding less:

1/((2^224-1)/(share difficulty)*(hashrate in khash/s)*1000/2^256)

So you'd get a number around 12.27.  You can also solve it backwards.  4294967/x = hashrate, then solve for x.

so you simply would look at the number of shares over a period of time.  Let's say we had a worker submit 360 shares over an hour.

360 shares per hour is 6 shares per minute, or 0.1 shares per second.  Bring that up to a whole share, 1 share per 10 seconds.

4294967/10 = 429496.7 Khash/s

1PRieLgL24cr39sWsNYUKbLJ3kWuBHPJBA if you feel so inclined Smiley
19  Bitcoin / Mining / Re: PCI-E 1x Mining? on: May 08, 2011, 08:44:58 PM
take your 1x pcie slot, and cut off the end of it, so it will fit a x16 card. and then you're ready to go!

This is a bad, bad idea.

Its a better plan to buy a 1x pci-e extender and cut that.  They only cost like 6 bucks, so if something goes wrong, it is a much cheaper mistake.
20  Bitcoin / Pools / Re: Cooperative mining (270Ghash/s) on: May 08, 2011, 07:25:07 PM
I was out of internet for the weekend, I'm working on that, long report will be later. Mining works again, payouts are stopped, analyzing troubles.

What a fantastic way to come back to civilization.  Again, I don't envy you slush..  I hope you had a good time and that pool cleaning isn't too horrible.
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