how to identify my ps2 model
 

i went to 2 sites both sites tell me something different 1 says i have version 3 and the other says i have version 4 if anyone can help please post asap
the serial#=u2407066
scph=30001
the thing that is weird is it only has 8 screwes on bottom not 10 help please

Here ya go, 8 screws is a version4

If it begins with u1 you have version 1
If it begins with u0 you have version 2
If it begins with u2 you have version 3
(Note: Some PS2s with serial number u2 may have a version 4 board.)
If it begins with u3 you have version 4.
If it begins with u4 you have version 4

thanks for the help now i can install the jumper