Band:  System of A Down
Song:  Temper
Bassist:  Shavo Odadjian
(~):  Let ring
(*):  Repeat

Intro
F—————————————————————————————————————
C—————————————————————————————————————
G————————————————————————————————————— (after the first time played, the first 5 is
C—5~———0—5—3—1~———1—3~———3—5~—————————   not needed)

Then— (played with the rhythm of the drum) 
F————————————————————————————————————
C————————————————————————————————————
G————————————————————————————————————
C—5~———0—0—3———5~———0—0—2————

Then— (the heavy part is 5s repeated a lot.I think)
 F————————————
C————————————
G————————————
C—5—5—5—5—*

 Thats all the parts you need to know, enjoy.