thanks for the pic.  Looking at the specs it takes another 80 watts to pull another 8 or so hash.  Hardly efficient at all.  I wouldn't bother at all as it would be more efficient and cheaper all round to purchase another one I suspect.

I don't personally know of the miners you refer to but I expect you would need more power to increase further... increasing supply or lowering resistance.  I'm not sure its worth risking the damage you may cause them.  Increasing power often has implications for other components, and then there becomes the problem of what to do with excess heat.. etc.  Maybe cooling them more allows them to work more effectively, maybe its a negligible difference, I don't know, but i would do that before I went replacing resistors or power supplies. 

Please pm with details thanks Mateo.

Hi there fellow bitcoiners,

First post just to say hi and get on the board so to speak.

I'm currently building a new bitcoin based startup and most interested in connecting with other Kiwis in the scene.

I'm a web developer, systems and network engineer by trade... open to freelance contracts for BTC.

I also dabble with data-driven graphics, and desktop publishing.

Hope you've all enjoyed a wonderful christmas and are looking forward to a very prosperous new year!

All the best.. can't wait to get stuck in to the community once the time ban lifts.