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Author Topic: Laptop Mining  (Read 1262 times)
NothinG
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June 13, 2011, 02:01:52 PM
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So I've noticed that my laptop's power maxes out at 120w while mining.

Toshiba Qosmio
2x 4core i7 1.6Ghz (2.5Ghz OC)
4048MB RAM
nVidia GeForce GTS 360M

I get roughly 22-28Mhash/s (yea, I know it's not a lot...).

Running some numbers[]:
28(mhash/s)/120(w) = 0.2333333333333333(mhash/s/w)
60($) for 900(w) = 0.0666666666666667(/$/w)
8($) for 120(w) [if my math's right]

If you were to (lets say use deepbit) for mining with the PPS method:
[deepbit.net] ( Difficulty: 567358 )
12607.96054602647 shares to get 1 BTC @ 0.00007931496901107/share
1 share @ 22Mhash/s takes 2min:12sec [Test #1]
[Test #1]
12607.96054602647 *
132 sec (2min:12sec)
__________________
1664250.792075494 sec (for 1 BTC)
27737.51320125823 min (for 1 BTC)
462.2918866876372 hrs (for 1 BTC)
19.26216194531822 days (for 1 BTC)

After I did testing with my first share, I forgot that shares aren't stable. So, that's one of the test I ran.
Okay so excuse my crappy math, but is running my laptop even worth the trouble?

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NothinG
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June 13, 2011, 02:15:22 PM
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Well, other than worrying about it overheating...I've made plans to drop by my local Chinese Computer Shop.
Thinking of either buying Mining Hardware; or build Liquid Cooling for my laptop.

Hard choice, little money.
I've only got enough for 1 small GFX card or the entire Liquid Cooling system I want to build.

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June 13, 2011, 02:34:55 PM
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Liquid cooling seems a bit extreme on a lappy to boost such a low hashrate. Youd be better off building a cheap mining rig that can handle the heat. Youd also get a much higher hashrate/$ with a desktop station.

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NothinG
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June 13, 2011, 02:39:47 PM
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The liquid cooling would mainly be for show (~200$) and would keep my computer bellow 150*F-190*F(yeah, I do a lot of stuff ;P).
I don't think I've ever seen my laptop bellow 110*F.

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June 13, 2011, 02:52:55 PM
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Within 3 days of having setup my Sapphire 5830, I'm getting just under 300Mh/s with a simple overclock using the Trixx utility, 990/300/1.163V.

5830's are the way to go if you can find one.


But something is definitely better than nothing. :-)


Just think, if you mine 1BTC and you actually hold on to it for awhile, maybe it will be worth quite a bit in the future. Just one. :-)


lw


BitVPS -- Senior System Admin, Co-Owner
http://www.bitvps.com -- Reliable Servers and Support - KVM, OpenVZ & Dedicated
NothinG
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June 13, 2011, 02:55:20 PM
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If bitcoin didn't have a cap (or maybe the cap could be like population control), then I would possibly look into investing in some stocks. Grin

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