I just bought this miner a few days ago from eBay for the sake of getting 30+ GH/s.

I hooked this thing up to a 200W PSU and an Ubuntu Server box.
I can't seem to get it past 8Gh/s. The only time I see above 8 is when I first boot up bfgminer and it warns me about the temperature.
I have plenty of cooling for this thing, so I dunno what's wrong.
If someone can help me on this issue, that would be great.
The hardware error rate looks really high - is it possible that it may be defective?
Maybe try cgminer (you'll have to mess up your drivers with Zadig if you use Windows...

) and see if it performs any better with that? (if it does, let me know and I'll see if I can help fix BFGMiner..)