disable ram on bios asus x751ld rev 2.5

please help me to :
disable ram on bios asus x751ld rev 2.5
this is my or bios

 

[admin7]

please help me to :
disable ram on bios asus x751ld rev 2.5
this is my or bios

Here

 

[aminemsaken]

Here

It allways work
My problem is not resolved my laptop is allways frosen

 

[LEO037]

maybe your problem its the system. or hard disk . try

 

[LEO037]

It allways work
My problem is not resolved my laptop is allways frosen

or try this one bios. i edit this BIOS. try and let me know how it turns out

 

[aminemsaken]

or try this one bios. i edit this BIOS. try and let me know how it turns out

it dont work !! dont boot !!
there are solution to disable onbord ram physiqly ?