Blue Screen Memory Addresses…..Please

I cannot get windows installed on my machine….neither 95 nor 98. In normal mode i get an error starting IOS and in safe mode i get a blue screen with the same memory address…..
0028:C002654A in VXD called from (another memory address) in VXDalso this one:
0028:C0018BFB
and:
040F:0000470

What do these mean?… i have switched out every card and every drive with another machine. The only things not switched out are the board and CPU…. please help…