Bitcoin Forum

Other => CPU/GPU Bitcoin mining hardware => Topic started by: whonesta on February 12, 2014, 07:29:28 PM



Title: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: whonesta on February 12, 2014, 07:29:28 PM
Video looks GREAT!..  That is until you look closer and notice the WU/m for the "200 GH/s" modules, 2-300???

http://bitmine.ch/?p=5176 (http://bitmine.ch/?p=5176)

I have an antMiner which is OC'd to 200 GH/s and it runs at a solid 2849 WU/m their rate appears to be more in line with 20 GH/s, IS this video a FRAUD!!! Have they altered cgminer to display 21.3 GH/s as 213 GH/s, printf(10*X)?

anyone?


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: dropt on February 12, 2014, 07:55:24 PM
Might have something to do with stratum difficulty of 512.


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: whonesta on February 12, 2014, 08:16:07 PM
I guess,

My antMiner is running @ 204 GH/s w/ diff of 128 and a WU/m of 2849. 128 is a quarter of 512, I can only test by switching from 64 to 256, same 4 fold increase but I do not see a 10 fold decrease in WU/m. Too weird to ignore.


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: Gator-hex on February 13, 2014, 01:08:55 AM
I don't think it's a fraud. Looks real to me.

Interesting to see it's 1GH/W at 210GH per board. That's half the power of an AntMiner.

I saw someone say they had a Technobit Hex8A1 running 260-280GH at like 40A/480W.

Is this a different batch of A1 chips or is that just the difference on Turbo boost, double power for just an extra 60-80GH?


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: Quix on February 13, 2014, 01:16:35 AM
If you want real fraud you can literally program yourself a fake display any time you like. Animate one, hack CGMiner (which is open source) or just write a quick console app.

I don't know what these videos are meant to prove. Maybe I'll make an example fake video just to show you what I mean.

I'm not saying if it's a fraud or not, but judging based on looks is totally pointless because it's just so easy to fake.


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: whonesta on February 13, 2014, 01:46:14 AM
@ quix I agree it is very easy to add in a multiplier to the cgminer code to make it appear to hash @ any rate you'd like, IMHO this is a fake.


Title: Re: Anyone see the video of an "operational" Bitmine.ch 1 TH/s CoinDesk?
Post by: maardein on February 13, 2014, 10:01:22 AM
The stats at eligius seem to confirm their hashrate, even though they could have multiple miners pointing to the same address:

http://eligius.st/~wizkid057/newstats/userstats.php/1BA1Y3xvLbSYU9TqcxUspXzEn1roSStCVr