Only a question of interest.

Why are you killing your GPU with mining at 200Kh/s ?
I think if you like to mine, buy a small Zeusminer  like the Blizzard with 1.3Mh/s for round about 50 bugs on Ebay.
If you start this with a Raspberry Pi for mining, you have a much higher Hashrate, and you need much lower power.
And you don't kill your GPU;-)

only my two cent