my GA-7N400-L mobo will not work with the clk switch set to automatic. i installed the mobo using the default settings to make sure it worked. after getting win xp working and getting the mobo drivers installed i tried setting the clk switch to auto - comp will not boot. i have an athlon 3000+ proc (barton core, 400 mb fsb), 1 gig of pc3400 sdram (from crucial), the proc heatsink is amd approved to 3400+, my ram is in dimm 1 and 3. mobo works fine with the clk switch set to 100. everything was taken from a soyo kt600 dragon plus that worked with a 400 mb fsb. any ideas??? the giga-byte.com site doesn't work so i can't get any help from them