Resolved What processors are compatible with this board?

I have a rather old but new-in-box board that must go into a specific computer. Parameters dictate this board and only this board be used. It currently has an also new 2.8GHz Pentium processor on board and is running fine; but, I would like to swap this processor for a faster one. Not much gain, I know; but, that's what the owner wants.

This is the board:
http://www.pc-specs.com/mobo/GigaByte/Gigabyte_GA-8IPE1000-G/1884

Gigabyte no longer has data on this board and I cannot find a compatible processor list and the manual says nothing I can find about compatible processors.

Can anyone help with this?

 

Thanks, that's a complete list.
http://www.gigabyte.com/support-downloads/cpu-support-popup.aspx?pid=1863