|"well the 2gb kit will overclock better.."|
Is that a statement or a question? To overclock the Celeron E1400, you will need to underclock the RAM, not overclock it. Do you even know how to overclock your system? The E1400 will easily do 3.2GHz & your board is capable of 1333FSB+, so you should shoot for the CPU at 3.167GHz (9.5 x 333MHz) with the RAM running in sync at 333MHz (DDR667).
You obviously made the wrong RAM choice, but if you had already ordered it, why did you even bother to ask?