Also, I am posting a second time and not adding it to add emphasis to the importance of this :
If you are being shocked when touching your components, you need to go spend the few bucks to buy the multimeter and test your connections.
Failure to do so could potentially cause your computer to sustain permanent damage, and I've even seen issues where it's sparked and started fires from shorting out, which caused someone to lose their house and a few pets when their place burned down.