Can a faulty graphics card damage a motherboard / PSU?

[rcb360]

I installed a used 2 gig Gefore card into my mobo to upgrade from a 1 gig. The system started to freeze. (Windows7). I put the old card back in now I get a studder during the only game I play (World of Tanks). I purchased a New Gefore card to eliminate the issue but it still persists. Also reloaded Windows. Could my mobo be fried? Please help.

 

[omega21xx]

If you didn't have the issue before, look at other things that have changed, like your drivers for one.

The chance of a bad GPU damaging other components is possible but unlikely unless it's a severe problem regarding voltage, static, or shorts on the board.