A major concern for the exchange operator should be legality. There are a number of company-backed digital currencies in China and regulations controlling their use. I think people would want to know that you had checked with a lawyer on the legality of a BTC/RMB exchange.
This legal problem I think not only bother asia. It seems paypal had banned trading bitcoin, right?
We got plenty of miners in China. It's hard for most of us to exchange on mt.gox with dollars. I have several dedicate servers. So I wish to set a chart just as mt.gox for chinese money. Any dude can do me this favor?
I use GUIminer to mine in slush's pool. The Extra flags are"-v -w128". My card is HD5750, 775/1200MHz(overdrived). Running under winXP sp3, dx 9c. The GPU load is always around 70%, and temp around 65c, neither is going higher. I saw others in forum can get more than 150mhash/s, with the same card. So Could anybody tell me where's my problem?