why cant i get 133 fsb on my tbird 1.2??

[fuzzy1]

i got a brand new iwill mobo and new 1.2 tbird.also my multiplier isnt locked for some reason i can change it to whatever through bios.now the prob is the highest fsb that i can do is 112 any higher and it wont restart my comp.so i got it set at 112*12=1344.but all you guys are talkin about like 140*10.5 and **** like that or using a 133 fsb why cant i go higher??
i got 256 megs of pc133 ram and 64 megs of pc100ram,i tried trakin out the pc100 ram but still didnt work.ive tried it through the bios changing the fsb to 133 and also the jumper on the mobo to 133 but it just wont work.what itll do is start then itll get passed the detectioning ide drives then just do nothing.also whats the diff from my system fsb and the fsb cause it says my system fsb is 224 and fsb is 112 my mobo says itll go to 266 fsb??sorry im a newb just lookin for answers and any help much appreciated.
thanks fuzzy-1
btw i got a geforce2 gts if that would make any diff and also my temps after 2 hours or so of tribes2 are about 51

[portorock]

a prob some members were talking about was their north bridge, apparently, there are 2 types of chips out. One with a metalic sticker and one that is all plastic. I don't remember which is which, but it can be found in the amd mobo forum about abit quality going to sh*t. Different boards, but similar probs

[Yomama]

Which motherboard do you have? If it's the old KT133 chipset, then 112 or so is pretty much the max, and anything else has to be done via multiplier.

Yo

[fuzzy1]

its the kk266 mobo