Hi Shaker242, I read through your post but my problem is not only slow mining it simply does reboot all the time. After 2 min. reboot. Actually you do not tell how you solved the problem.
The LED stays red on some powersupply. On the other it goes off but also after 2 min restart it connects to my windows binary proxy. And also I tried to compile the slush proxy on ubuntu which connects now the same way, but no luck getting this brick to mine.
What PSU are you using? Everyone that has had this issue seems to have resolved it by getting a new PSU.
12V @ 25A seems to be the minimum requirement as far as I can gather.
Edit: Also be sure to take off the case and ensure all heatsinks are screwed on properly and all boards are seated correctly.