Originally Posted by Blameless
Yeah, only the largest coins are significantly resistant to this, while small SHA256 coins are most vulnerable. One person with a good ASIC setup could successfully pull off a 51% attack on many of the smallest/newest coins that use SHA256 for proof-of-work.
This is the prime reason I stay away from altcoins till the reach a certain critical mass. I'm okay with risks, just not the kind where an entire coin can be invalidated overnight by a one-man attack.
+1, also some coins are apparently profitable but when you go to dump your mined coins price doesn't saty put very long and you end up getting less than you projected.
Why I suggest to mine big coins like FTC, WDC, DGC, LTC, MNC or MEC and only when each is more profitable or lower fdifficulty than the rest.
Originally Posted by Maian
Ok, so over the last two days, I've sold a Butterfly Labs Jalapeno ASIC Miner (5GH/s version) for $600 (bought for $300, never used - it arrived about 10 days ago after ordering in June lol), and my Windforce3 Radeon 7950 for $345.
Now - I have a 280x on the way for my main rig to replace the 7950 (currently just on a laptop). But with this extra $925 (after fees and shipping), would it be reasonable to buy some parts and put together a mining rig? I was planning on getting 4 R9 270s (not x) since they just require a single 6-pin power connector. Electricity cost is not a problem for me, electricity in Lubbock is dirt cheap. And when I say dirt cheap, I mean it. Currently something like $0.0214 per kWh. My last month's power bill was $22 (not a typo). Lack of central heating/air as well as no dishwasher is a large reason for this (Gas powered heater - gas is part of water bill, paid by landlord).
270s (reportedly) get about 450KH/s each, so a 4x 270 rig would be getting probably around 1.5 - 1.75MH/s. If I were to do this, what kind of power would that use? I would be using a cheap dual-core processor, so really the only power would be used by the cards. And scrypt mining is affected purely by the graphics cards, correct? RAM doesn't really play into it much at all?
Regular 270 non x won't get 450, ever...it's a slower clocked 270x (or a 7870 basically).
I wouldn't get those cards, I'm sure you can do better with 5870,5850,6950 that unlocks or a 6970. If possible aim for 7950s or a 280X.
Originally Posted by gtsteviiee
When I tried to mine at beeeer all the miner in the guide doing is connecting.. What seems to be the problem?
If you get a connecting message the pool you chose is not working currently. I heard the EU ip wasnt working anymore for beeeeer. Which one are you using?