Quote from: Wolf0 on September 01, 2013, 02:09:12 PM

Quote from: Beaflag VonRathburg on September 01, 2013, 01:03:49 PM

Quote from: Wolf0 on September 01, 2013, 09:39:23 AM

Quote from: CoinBuzz on September 01, 2013, 09:32:32 AM

It's power is from outside of litecoin network, because of him the litecoin diffculty is increasing heavily and network total hash is above 30GH/s now.

As long as we know, no one can make this big farm of gpu, it should be something else.

Maybe a bitcoin mining pool that pointed to litecoin and all of it's users changed their cgminer settings as well. (BTW, if this assumption would be correct, we should know that pool in forums that converted from bitcoin to litecoin with all of its users, do you know any??)

Uh, someone CAN make a GPU farm that big. It's about 250 rigs, which sure as hell isn't peanuts, but it's doable.

You need to check your math: 1,920,385 / 250 rigs = 7681.54 KH / Machine. I don't know of anyone making 7.68 MH / machine. That's not ever feasible with 8x 7970. Even if you give them a liberal estimate of 2500 kh / machine that's 768.xx rigs or 3072 7970/7950.

Whoops, yeah, I think you're right. My bad.

But 2500kh/s per machine isn't a liberal estimate at all. Most people run 6x7950, so that would be 6x650 = 3900kh/s per rig. Considering 7950s sometimes hit around 680+, I'd say 4MH/s per rig is reasonable. So, 1,920,385 / 4000kh/s = 480.09625. So basically 480 rigs. If they are using 7970s (why any sane large scale miner would do so is beyond me), then 6x750 = 4500kh/s per rig. Still doable if you're a corporation, maybe, but likely outside the realm of an individual. It could also be a pool pointing at another pool to reduce variance.

Your numbers are still really friendly. This is a 240 MH/s farm.
https://bitcointalk.org/index.php?topic=7216.msg2997283#msg2997283

Quote from: shenpeng119 on August 24, 2013, 10:01:42 AM

Quote from: Trillium on August 24, 2013, 08:19:23 AM

Those look like various IBM redundant PSU. At least 1460 watts, I'd say. FYI you can get 2000 watt bladecenter PSU on ebay pretty cheap! ($60 or less).

you are right,it is DELL ,very cheap, 600 * MSI 7850 1G , About 240Mhs and 250LTC/day

Now, with that in mind think of what 8X that would be...

Quote from: Jaden on September 01, 2013, 02:22:31 PM

Some how I think we're getting screwed here...

Agreed! This all came on the network really quickly and now there's a second account that popped up with 1,000,978 KH/s, zebbsd. I think this has to be some sort of exploit that people are taking advantage of much like the semi recent stratum exploit that caused large gains in hashrate.