So if I were to shut down my GPU mining and put a couple 7950s in my main PC, what games would they benefit the most? I actually haven't been much of a gamer in the last 15 years, but I tried out the free games that came with my GPUs, and found I like the new Tomb Raider (I spent many hours playing the original Tomb Raider way back when). However, the game looks simply gorgeous just with a single 7770.

There must be some reason to have crossfire capability on them, however...

So my rig with 2 7950s is currently bringing in about $2.63 a day...

Yesterday I started commuting with a new bike that I bought for almost the same price as my 2 GPUs. With the current price of gas, I'll save about $5 a day that I ride it to work and back.

Guess which one is most likely to pay itself off in the next few months?  

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I've been using a rather old P4 system with a 7950 card for mining, and decided to add another one. I have a Coolermaster 550W PSU. I added in the 2nd card last night, and was pleasantly surprised to see cgminer pick it right up and go, using the same settings as it used for the first one. However, once the fans on both GPUs got going, the system froze.

I decided I must be drawing too much power, and set the shutoff temp to 75 instead of 85. That did the trick, and I let it run overnight. This morning, I noticed a smell that can only be detected from a distance - if you put your nose right up to the GPUs or the PSU you can't smell anything. I pulled the new GPU out for the day and went to work, so I wouldn't worry about it all day.

I decided I probably need a better power supply, so I ordered this one that New Egg has on a 48 hour sale:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171037&nm_mc=EMC-IGNEFL060413&cm_mmc=EMC-IGNEFL060413-_-EMC-060413-Index-_-PowerSupplies-_-17171037-L013C

My questions are, is this power supply going to be powerful enough, and is the smell related to the power supply I'm currently using? (I do know at least that my current one probably isn't powerful enough since the system froze when the fans got going at 100%).

Last night I decided to try out Slush's pool for a while, but went to bed and ended up getting disconnected. Today I see this:

#   Block found at   Duration   Total shares   Your shares   Your BTC reward   Block #   Block value   Validity
18284   2013-05-30 09:23:24   5:14:27   48529423   981   0.00000000   238658   25.41754350    confirmed
18283   2013-05-30 04:08:57   3:59:51   37961064   12   0.00000000   238622   25.50438406    confirmed
18282   2013-05-30 00:09:06   3:16:40   30931819   104   0.00000000   238598   25.47875001    confirmed

So I got nothing for the time I was connected? Is this normal? Seems like I was cheated...