My system specs : dell latitude E5420 ram 4 gb core i3 2nd generation
running os x Yosemite 10.10.5 .
I made usb bootable with the guide https://osxlatitude.com/index.php?/topic/8506-dell-latitude-inspiron-el-capitan-clover-guide/&do=findComment&comment=54632
I did all things right because i installed Yosemite with same procedure and its running fantastic,
now kindly help me to install el captain on e5420.
The problem is when i made usb bootable and restart my pc and run usb installer without caches it takes some time load somethings on black screen and simply restart can't find any solution .
I will be very great full .