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261  Bitcoin / Hardware / Re: Official CedarTec Topic - New ASIC [Scam?] on: April 09, 2013, 08:58:25 PM
So, the lesson to learn from this all is?
Maybe do NOT give pictures or qualifications or anything else that can be analysed.   It is far better to have a group of people with no chip experience whatsoever, make physically impossible projections and show some empty boxes (after 6 months)....   That is something that can take THOUSANDS or orders and still seems credible to people.    and maybe have a shoutbox, that your constantly lied to customers can hang out in all day chatting about video games and "when do you think Josh will say something again".



What's your point? Gotta get that trollin' fix?
262  Economy / Speculation / Re: How long does it take for bitcoin value to double?? on: April 09, 2013, 08:23:24 PM
I just sold almost all my bitcoins...

I don't understand the price appreciation.

Oops.  Roll Eyes
263  Bitcoin / Hardware / Re: Official CedarTec Topic - New ASIC [Scam?] on: April 09, 2013, 07:58:27 PM
So I was thinking... JPEG forensics is a real thing in criminal justice. Why don't I just take a peek at the pixel level and see if anything looks fishy?

HERP DERP. The reflection of light off the chips is almost identical at the pixel level. I'm going to attribute the variation to JPEG compression.

Now of course I could be wrong (and I would love to be!), since all of the chips could potentially be very uniform, and are also coplanar, so light reflection could also be very uniform.

But.... CMAAAAAAAN.

http://imgur.com/a/UkNow#0







264  Bitcoin / Bitcoin Discussion / Re: So... This is how you kill bitcoin. on: April 09, 2013, 12:06:55 AM
How much money do I need to get 50% of the hash rate power? Hardware + a few nerds who implement a harm to the network.

Spend 5 minutes and do the calculation for yourself. At current hashrate/difficulty, those costs are astronomical to everyone but the traditional multi-/national financial systems (governments, banks, large corporations, etc).
265  Alternate cryptocurrencies / Altcoin Discussion / Re: BitsnBytes! A Live Bitcoin/Bytecoin Orderbook on: April 08, 2013, 11:53:09 PM
registered: samurai1200
266  Bitcoin / Bitcoin Discussion / Re: So... This is how you kill bitcoin. on: April 08, 2013, 10:40:15 PM
In fact, let's look at this anecdote.

Anecdotal evidence is a scientific oxymoron.
267  Other / Beginners & Help / Re: LTC Mining General Questions - Radeon 7950s, Proxies, Pools, Rig [Loaded thread] on: April 08, 2013, 05:06:22 PM
In the middle of all this I downgraded drivers and now cgminer crashes with almost any settings I throw at this card.

Upgrading back to 13.1 isn't helping so it looks like I'm gonna have to clean out my drivers =(

Are there known issues in running a 7950 with a (couple of) 6950(s)?
268  Other / Beginners & Help / Re: LTC Mining General Questions - Radeon 7950s, Proxies, Pools, Rig [Loaded thread] on: April 08, 2013, 03:41:43 AM
Ugh, subscribed. I just picked up a Sapphire 7950.

I was able to set it up where my hash rate was ~550 kh/s (slightly overclocked), no hardware errors, but only ~2.5 shares/minute (U:2.5).

Now it seems like no matter what I do I'm getting nothing but hardware errors.

Changing out my drivers to 13.3......
269  Alternate cryptocurrencies / Altcoin Discussion / Re: LTC FPGA discussion! on: April 08, 2013, 12:14:11 AM
FFS. Could we PLEASE let this be the ONE thread on BTCtalk that doesn't devolve into accusations of trolling and finger-pointing? PLEASE? JUST ONE THREAD???
270  Economy / Computer hardware / Re: 2x AMD 5970, HIS 6950, Cooler Master 700w PSU on: April 07, 2013, 07:08:01 PM
No worries. I have a few ebay auctions pending too. Just reply here and I'll let you know what I'm up to.
Only so many slots on a motherboard!
271  Economy / Computer hardware / Re: 2x AMD 5970, HIS 6950, Cooler Master 700w PSU on: April 07, 2013, 06:27:09 PM
I'm in for the 6950 if payment falls through. I can BTC or Paypal it today.
272  Bitcoin / Mining support / Re: Visiontek 6950 not hashing or locking up on: April 05, 2013, 06:44:55 PM
It's such a fickle thing. What I ended up doing (while just trying things out of desperation), was put it into a full pcie-x16 slot, boot windows, let it install drivers. Then pulled it out, booted windows again. Let everything boot and made sure my other 2 cards could hash. Then shutdown and installed the Visiontek into a 1x with riser. Let the drivers install, then reboot again. After that everything worked.

Anytime I re/boot the machine without a card in the 1x, I have to boot and reboot to get it to hash.
Oh and if ANY card has a monitor plugged into it, I get crashed drivers left and right (I VNC into the machine over my network).

Linux would be a mystery to me in this case. Driver install is such a manual process with linux that I think you'd just end up with a big headache. Drivers are the reason I gave up on the linux environment in all of my PCs =(
273  Alternate cryptocurrencies / Altcoin Discussion / Re: Why Litecoin? on: April 05, 2013, 02:19:12 PM
Litecoin is extremely vulnerable to a 51% attack due to the vulnerability of its pools to being DDoS'd, and due to there being significantly less mining capacity needed to reach 51%.
Legit question: How is this different from Bitcoin in its youth?

I'm going to do a little calculation for my own sake... and probably to my own LTC-holding peril!

The current network hashrate is 5.6 GH/s. Litecoin Scrypt is said to be (and anecdotally has been found to be) 1000 times more difficult to hash than SHA256 (serialization, memory hardness). So to compare to Bitcoin, that is the equivalent processing power/equipment to 5.6 TH.

50% would be 2.8 GH/TH worth of equipment, all done without ASICs. The most reasonable way to accrue this kind of power is through renting a botnet. Let's assume the average person's computer (as part of a botnet) could do 100 kH/s (most would be CPU, some would be gaming rigs). To get 2.8 GH/s, that is a 28,000 slave botnet. From various articles online I have seen that such a botnet might cost $200 x 28(thousand) = $5600/hr (for a "world mix").

That is not an unreasonable amount to a nefarious character who has a high profile target in mind. But botnets are fickle things. A world mix would see lots of downtime at the bot-per-bot level, such that you may get 80% efficiency. Also, I may have been overly generous with the 100kH/s average estimate.

A lot of people know why and it seems quite a lot know why it wasn't a good idea too.
95% of this thread is people talking about confirmation times. It is my view that the security issues are founded but may be somewhat overblown, but I don't know much about the mechanism and logistics on carrying out timing attacks on the network.


Disclaimer: my crypto holdings are about 30% LTC, 70% BTC.
274  Alternate cryptocurrencies / Altcoin Discussion / Re: Why Litecoin? on: April 05, 2013, 07:40:57 AM
ITT, a whole lot of people who don't understand why the Scrypt algorithm was chosen. Vorksholk was approaching the reason in his last post.

Here's a little insight, try to extrapolate some reasoning yourselves:

http://roycebits.blogspot.com/2009/05/colin-percivals-scrypt-new-chapter-in.html
275  Economy / Speculation / Re: 20 calls a day from large asset managers looking to invest up to $100m. on: April 03, 2013, 11:44:34 PM
http://www.youtube.com/watch?v=xHGFWWOylJM

/energydiscussion
276  Bitcoin / Mining support / Re: Visiontek 6950 not hashing or locking up on: April 03, 2013, 05:53:57 AM
LOL This shit always happens to me. I guess I didn't try modifying every variable in my CGMiner thread.

I'm going to leave this thread open for the posterity, no need for anyone to reply though:

FOR THIS CARD, GPU threads MUST = 1 !!!

Also, in some configurations, the card would not start hashing. I had to hop around PCIe slots until it was happy. It also seems to like to be 'started' first (in mining). Go figure.

Lastly, if Windows tells you the drivers crashed and recovered, you must reboot the PC.
277  Bitcoin / Mining support / Visiontek 6950 not hashing or locking up on: April 03, 2013, 05:46:48 AM
Bought a Visiontek HD 6950 1gb.

In bitcoin or litecoin mining, i can't get over 1 MH/s or 10kH/s (respectively) and the PC locks up the display for a few seconds every ~15 seconds. GPU-z reports 100% GPU load, but temps stay low (about idle temps). When I have other cards in the rig, sometimes I get the "driver has stopped responding" message. Does not matter on which slot I put the card, or whether or not I'm using a PCI-e riser cable.

CGminer (through GUIminer) stays quiet like everything is normal, reaper (also through GUIminer) states Error 52 or Error 6 "getting work" and updates me with 0kH/s every second (though I haven't used reaper before, so I may have something configured wrong).

I've been googling the bitcointalk forum for hours and can't find a solution (and really, only a few others with a similar issue). Does anyone out there know what the hell is going on with my card?!
278  Bitcoin / Mining speculation / Re: PrimeAsic Order Update. Tracking Number Provided A Few Hours Ago! on: March 30, 2013, 03:04:25 AM
Big risk big reward! I hope you get the machine man!!!
279  Bitcoin / Mining speculation / Re: You do all realise what BFL are doing right? on: March 30, 2013, 02:36:33 AM
hehe nice post Smiley everyone should read before they write and listen before they talk... lot less "filtering" that has to be done through repetitive or pointless posts, thus causing people to miss the important information and threads

ah the cost of free speech.

They used your preorder money for their research and development and are now using your units to mine for Bitcoins while the complexity is relatively easy with their kind of equipment. Its a win/ win. They make money from their customers and mine all the Bitcoin first. You are pretty much getting the sloppy's afterwards. GREED. Love it.

On another note I would file a class action suite. They will deliver but not until they have mined the **** out of them.

Opinions?
and after they stp minning

bfl josh  inabama first class scumm

has his own option to pay him to host ur eqipment  pay him triple for electic bill

and get 5% f ur coins on his pool

with bonus option to screew evrybody take there coins and eqipment

after he gets fired from bfl

Is this guy for real?!
280  Bitcoin / Bitcoin Discussion / Re: mode +m set on #bitcoin, < 10 people can speak on: March 30, 2013, 02:15:29 AM
irc has always been like that. the best move is to just /quit
find something productive to do then sit on irc.


yeah you're right: when someone censors you, you should just give up and go do something else because free speech isn't worth the effort.  Roll Eyes
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