Hey guys so I just started this morning, I'm currently mining using GUIminer in the BTC shared pool. I've tried to read up as much as I can on bitcoins but there are a couple of things I'm still unsure about -
1. So I'm using a shared pool. How will my money earned vs electricity costs look? I have no idea how to monitor my electricity usage (I'm using a laptop) so is this actually profitable for me to run in a shared pool? I don't know how much electricity I'm using so if anyone could give me general advice that would be great. My graphics card is a GT 540M.
2. According to GUIminer my Mhash/s is about 8.7-9.1. Is this good or bad or what? I have no idea what a good or average value would be.
3. I know that mining uses GPU's to perform calculations or something, as I'm using a laptop is there any chance that mining will overheat my graphics card or ruin it?
Thanks a lot for any replies, sorry for any stupid questions
Mining with a laptop is pointless. 8 or 9 Mhash/s is very, very, very low. Have a look at a site like http://www.alloscomp.com/bitcoin/calculator.php
to see how much you'll earn mining. The amounts below are 9 Mhash/s with an exchange rate of $5.
per Day ฿0.01 $0.03
per Week ฿0.04 $0.18
per Month ฿0.16 $0.79
You'll be making $0.03 a day, while burning much more than that in electricity, and degrading/over heating your laptop.
Take a look at the wiki to see the hashrate of various graphics cards. https://en.bitcoin.it/wiki/Mining_hardware_comparison You'll see that you can get >700Mhash/s from a single graphics card.