even though I have a max of 1200, I only run mine on 800-1000. Try to boost it down some and see if that helps, not every device can run that fast..
It boils down to trial and error. I haven't been able to load a chevys kernal since UD 1.0 maybe 2.0 I can't remember..So far Iv'e just been running the stock one that comes with the rom, at least until the rom gets stable and then I'll play with the kernals,the sargents, and the generals........
'Beauty, is in the eye of the Beer holder'.