Help Please! Which processors definately work with bios A07?

I have a replacement board for my GX280 which came with bios A07 already on it.  My current cpu isn't supported so I need to get one that definately works with bios A07.  It doesn't matter what speed to me, as long as I can get it up and running, I can always put A03 on and run my SL7PZ 3.4ghz.  Any help would be greatly appreciated. 

I did call Dell, but they apparently don't have a list of supported cpu's for bios A07. Ahhhgggg...