Impossible for small miners. Say you are selling 5 BTC at $70 bucks and want a wire transfer.
You go on tradehill, pay fees just to sell the coins, then pay a $45 withdrawal fee to actually get the cash out.

You end up getting 25 bucks for 5 BTC, or $5 each. Maybe even less if your bank has fees for receiving wires, or ATM withdrawals etc., making your mining efforts essentially worthless.

Btw, yesterday must be some sort of mining record, pool luck -172%

I saw something like -16% on deepbit months ago, but.. wow.

(p.s. yes, I know it will likely average out tomorrow in the form of sub-1 hour rounds)

You can pull 410-430mhash per core on a 6990 (up to 860mhash/s per card) and it takes only 1 PCI-e slot.

It also consumes less power than two 6970's so it's essentially the best single mining card if you can pick it up for around $700 bucks.

Sure you can get nearly the same hash rate with two 6970's but that will take up half of your motherboard.
If you have 4 slots, you can use 4 6990's for 8 GPU's.

Whereas you can only fit 4 6950 = 4 gpu's on a typical motherboard.

Ford didn't have 90% market share.
Mt. Gox does, and will have unless Camp.BX becomes popular or people suddenly switch to tradehill.

As it stands, Gox is Microsoft, Tradehill is Linux and bitmarket is something of a mac-freeBSD hybrid yearning to be noticed but goes home hungry every night.

Then there's Bitomat, the Symbian of bitcoin markets that only 1 nation in the world understands, but holds considerable volume on a global scale.

Surprised by pussy-whippedness in a nerd community?
Sorry, had to put it out there.

^
|
Notice the irony

I'd take the gamble with a hundred bucks.
If you win, you practically got 2,000 bitcoins free and their value is $20-$50 years down the road. If you lose, you're out the price of 2 video games, a few bar nights, or what-have-you.

Since they always have *some* function as an instrument of value, I'd hold on to them. Doesn't matter if it's temporarily $15, $3, $0.01 or $250.

lol @ all the rabid hyenas begging for stolen coins openly.

Then again, shows what the community really is,
you guys would prostitute your grandma for 3 dollars if you had the opportunity.

It's actually just 1 card, but as you know it houses two GPU's on the board. It's the only card in the system.

To cut a long story short, here is the GPU in OC mode in Furmark & Metro 2033 & idle shortly after,
some of the most demanding 3d apps out there.



Here is GPU #1 after 30 seconds of bitcoin mining in Phoenix.



I know the GPU is not faulty since it works fine in everything else and doesn't overheat.
Why would bitcoin miner clients do this, and can it be solved? Both cores running at identical clocks (840 mem, 880 core, max. fan speed while mining).

I've triple checked that both miners also have the exact same flags, cpu affinity etc... Even when creating 2 blank miners with no extra settings this happens.

Was promised 7-10 days shipping time for latest cable order,
arrived in 4 (standard shipping, no express this time)

Can't recommend Cablesaurus enough. Products work without issues.

Daemon doesn't support that by default.

If you have spare time though, you could improvise a fetch script for BE which you can integrate in the client binary before compiling.

Then there's RPC for

But it doesn't necessarily indicate the balance of that wallet since some of it might have been spent.

Well since you asked, IMO a Corsair AX1200 is not enough for 3 cards with the OC switch on.
It will work because the PSU is extremely robust (it will draw up to 1500W despite it's specs) but you are putting a large strain on it when going over 100% of it's specified limit.

I have that exact same PSU in one of my rigs and it runs two 6990's fine OC'ed about 390-400mhash per core

Then one with a Coolermaster 850W supply (screenshots above) which acts really weird on 1st core.
Highly doubt PSU has anything to do with card stability or temps but just throwing it out there. Core 0 goes batshit crazy and those rigs are identical except for the PSU.

There are 20-30ghash pools that don't find blocks for weeks.

I wouldn't solo at 6ghash. The variance will absolutely kill you at this difficulty.
Point in case: http://btcpool24.com

The top miner has mined for 8 days soon at 3-8 ghash/s, and their reward is going to be about 9 btc max if the block is ever found.
The owner removed bonuses for those new miners as well, there's just a finder's fee of 1.95btc for the 1st block.

Just not worth it, you are losing potentially hundreds of dollars mining solo or in very small pools. It takes a long time for variance to even out.
It might even be that difficulty increases while you or a small pool are still working on that block, further lessening your chances of finding anything.

Nah, not the memory clock.

I gave up a long time ago trying to get those hashrates you mentioned, due to temp. problems.. Room is maybe 20c, other core runs typically at 70-75. Core 0 simply skyrockets in temperature even if it has a massive 500cfm/h fan pointed at it.

Tried various stress tests like Furmark, only bitcoin and phoenixminer practically kill gpu#0.

Still, nice guide.

Tbh 910 core clock makes device 1 run 20-30c hotter than the other core which sits nicely at 65-80.



Might be just a faulty card though. If you can help me solve this I could pay out a bounty.

If I OC without the switch turned on, anything past 880mhz makes the hashrate slower.

Doesn't matter if I put it at 881 or 945mhz, it doesn't help. Some sort of throttling comes in play.
Not a big deal otherwise but some manufacturers may void the card warranty if the sticker shows evidence of tampering.

I have the *exact* same problem on the only rig I run at home (only 1 card).

The sound died out of nowhere one day.
I can plug in speakers or headphones, it says plugged in, but no sound comes out.

The HDMI connection will produce no audio either so that's a no-go.

Can the heat exhaust from a GPU really burn out the nearby audio port?

His surname is Hungarian,
and so is the name of the guy who runs the largest bitcoin exchange in the world,
which just coincidentally happens to be run in Japan.

Mark Karpelés and Nick Szabo also both write fluent English and have common angloamerican first names atypical to their countries (unless both were really born in the US or another English speaking country)

Too much of a coincidence?

Michael-Moore-Alien-Abduction-DaVinci-Biblical-Revelation-Tinfoil time.

If you use an escrow that releases funds based on irreversible payment proof in the BTC network (verified by blockexplorer)
there is no risk of dispute or chargeback, so I'm confident he will accept this solution.

Also there is no personal risk to him because the escrow will not release his funds if blockexplorer fails to show any transaction to his specified BTC address.

Likewise, he can't scam me if blockexplorer indeed does show a 5 BTC credit to his account, since that's enough evidence for the escrow that the transaction in fact took place & the funds he deposited will be released even if he wants to make a fraudulent dispute.

That's too similar to what bitcoin became to be a coincidence.

It must be Satoshi (or the people behind him) who wrote that as a precursor.