Blank screen of death after chasis change

Hello,


hi guys i did something silly, i have a quad2core 4 gigs ram, etc.. and graphics card sli suported in pci e slot

well

i wanted a new case, installed everythign in it,

and put these new ram colors u can clip onto ur ram mem cars made of coper ,

now my pc does not beep nothing on the screen but blank screen of death,

it must be the ram sticks right?