I think i broke my mobo (bios checksum error)

ok i just got a new graphics card (9800gtx=awesome) and was putting it in my comp. unfortunetly it did not fit beause of the battery on the mobo was in the way. So i reassembled the computer with the old graphics card. when it was finished i turned on the computer and it didnt start. i had forgotten to plug in the power for the mobo. stupidly i pluged it in with the power supply on. The computer went on real fast then shut down. when i went to turn on the computer a new screen came up instead of the bios boot screen. it said keyboard error then under that it said bios checksum error. I think i might have messed up my bios or did something to the motherboard. -anyways is there an easy way to fix this or should i get a new mobo(i was planing to anyway to fit the 9800gtx)

also might i have damaged any other system parts such as the memory or the cpu.

p.s. whats the best microatx motherboard

any help would be greatly appreciated