7 Computers, no personal power costs, good GPUs >> Suggestions?

[Markus4321]

Hi there!
Im running a little Office with some employees. Since its a little Office, all power costs are included anyway.
Lately i thought to do some bc mining while the computers are not in use (~15hrs a day).

Configuration(s):
6x i5-3570K @3,40Ghz + Radeon HD 7950
1x i7-2700K @3,50Ghz + Radeon HD 7970 (my boss computer )

What i've read so far: If i would do "single mining" with each, it could take several months to unlock any 25btc key.
So i thought about doing pool mining with all the computers.

I compare some data from https://en.bitcoin.it/wiki/Mining_hardware_comparison to get the total mh/s:
6x HD7950 = 6x500MH/s = 3000MH/s
1x HD7970 = 650MH/S

Means a total of 3650MH/s with all my office computers.

Now my question: I did read that pools usually pay you for your "work", means by your MH/s, correct?
So would it be worth to add each computer to a pool?

Which pool would you suggest? How much would i get in average by running each machine for 15 hours a day?

Im new to bitcoin, its somehow complicated since its "very different" to anything i've seen so far.
But i want to get into the boat

Please help me and give me some hints, i fear im absolutely lost without...

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[inetketing]

BitMinter offers BTC mining and NameCoin mining at the same time

Just my 2 cents

[Markus4321]

Thanks for your reply.
However, im very confused by "NameCoin".

It says (on default stuff) that i could mine monthly:
B22.02   $51.81
within ~8hrs and all my computers.
So about 16hrs would just be the double, ~103$ monthly.

Since the value of BC has raised up to 110+something yesterday, these numbers dont really fit.

So; why it says B22.02? B = BC or BTC? Confusing!
Also; doesnt the reward usually depends on the pool? Or does this NameCoin site calulates with "single mining"? http://beta.ivc.no/bitcoin/namecoin/

[Neuroticgrim]

I would definitely suggest you look into Slush's or BTC Guild pools.

I would also suggest you get the permission from your employer to run the bitcoin mining on the machines.

 

[Markus4321]

Guilds are what i am looking for!
Since the chances to get any reward by some computers is almost zero, i rather use their work to get some "fixed" rates from those so called guilds.

I would use run the mining only outside of office times, there is no harm at all.
Also i do not need permission to use "computers of my employees", since its my little office and i bought those computers.

Can you suggest any guild?
Computers will run 16hrs a day for mining, 3650 MH/s in total.

I want - at least - the income of our coffee consumption

[Craftyman]

There are several pools around you can mine on. I have had good experiences with https://deepbit.net/

[Zachary]

Might as well try it.

[Markus4321]

Well, so DeepBit works like this?
You register an Account, add your Bitcoin Number in it.
Then with parameters you start any Mining-Tool, add your eMail and Password from DeepBit Account - and simply keep going?

Which of the 2 available Options is better (personal experiance would be nice):
- Pay per Share (What i understand: You work and work and work, get reward for any work you do, doesnt matter if successfully or not)
- Proportional (If you helped to solve any block, you get a percentage of the work you did on it; "only" rewarded on success)

I wonder how hight the proportional selection would be, after all i guess you would help to solve good blocks once out of 10 times.
Which would mean, if a 100 people are about to solve one, you would get *0,01 of it, maybe *0,02 if your work was double as high as all others.

The other option states: "Pay per share: 0.00000336030223163 BTC per every submitted share"
How many shares does a client usually submits per hour? I have no idea!
Actual chart: $145,50 (what the $%)

So DeepBit gets me 0,00049$ per share.
That means i would need to submit like 2050 shares for ONE dollar.

Any Data from Experiance? Any Numbers? Suggestions?

[panda1]

You have enough computers to try both options.  Join the pool, let your computers run for a few days and you'll see which options works out better.  Or maybe there won't be much difference.

[Markus4321]

I start to think that absolutely noone here ever used bitcoin.
No numbers, no experiances, only replies i already know about.

[Thorbinator]

https://en.bitcoin.it/wiki/Mining_hardware_comparison

[Markus4321]

Im looking for Numbers out of Experience from other users, not for Links i already did post by myself, which you had known if you would read this small thread before posting useless replies.

**Update
Ive testet it now on 1 of the computers:
~ 15 Minutes (2-3 breaks, guiminer did fail sometimes >> timeoits)
Means about 100 Shares i did send.

Those are worth 0.000336030223163 BTC
0.000336030223163 BTC are worth 1/2975 BTC, so $145,50/2975 = $0,049 per 15 minutes.
>> Per Hr = $0,196
>> Per 16 Hrs = $3,136

So in 16 Hrs i gain bitcoins worth $3,14 with one computer.
7 Computers then would generate about $21,95 per day.
>> Which is an average of $658,56 per Month - or - 4,52 BTC
Calculated with $145,50 per btc (if i got it right)

THOSE are numbers out of 15 minutes experience, i search for longtime experience.

[goshi]

I can theorically make one BTC every 30-35 days with 450-500MH/s of power (assuming the pool doesn't get stuck on a day-long block). That can give you an idea of how much you can do with 3500MH/s.

[Markus4321]

I can theorically make one BTC every 30-35 days with 450-500MH/s of power (assuming the pool doesn't get stuck on a day-long block). That can give you an idea of how much you can do with 3500MH/s.

THANK YOU!
Since this fits with my little 15min calculation, i will go for it 

[jabetizo]

yes, i would highly suggest joining a pool. they do take a fee (~1-5% depending on which pool you join), but you get a steady and predictable payout. you can calculate approximately how many BTC you would make here: http://www.alloscomp.com/bitcoin/calculator

with 3650 MH/s you would make 0.27 BTC per 24 hours

keep in mind that this is calculated for the current difficulty. The difficulty adjusts every 2 weeks based on the total network hashing power (to ensure a predictable supply of BTC) and it is currently rapidly increasing (chart) due to ASIC deployment, so you should expect to make less BTC per day every 2 weeks (every 2016 blocks to be exact)