You can use an external drive or secondary volume as a startup disk from which to install the Mac operating system. If you wanna create bootable USB flash drive for Mac OS X El Capitan on Windows PC. You need a TransMac Software. That’s not a problem if you use a computer that supports legacy or UEFI. Just you need TransMac and El Capitan dmg file. Siddharth choubisa September 20, 2016 at 3:43 PM.
Bootable El Capitan Installer
This is Ultimate tutorial for installing Mac OSX up to EL Capitan 10.11.
You don't need working mac installation or AHCI capable motherboard, it can be done on any PC.
Tools that you need:
OSF Mount - http://www.osforensics.com/tools/mount-disk-images.html - This is most important tool, it can mount efi partition on image and edit it.
image link: https://goo.gl/nMcpOG
win 32 disk imager - http://win32-disk-imager.en.uptodown.com/ - this will be used to write image to USB, you can also use other software, there are many of them, i use this one.
In case you did not listen to me and you want to do this harder way:
http://www.hackintosh.zone/file/828-bootdiskutility-v212015/ - utility that can install clover from windows.
https://sourceforge.net/projects/cloverefiboot/files/Installer/ - Clover installer package
The most important note!!! ---- You need Sata kext in 10.11 folder, that will make your HDD to show up in disk manager, without it you will get still waiting for root device and your HDD wont show up in disk utility and you wont be able to install EL Capitan on your HDD.
My Specs :
Processor - e7200 core2duo
Ram - 6gb - different modules with different speed and latency
HDD - 320+720gb - sata2
USB - 16gb Kingstone
GPU - HD 7850 2gb dual bios.
Motherboard - P5N-D - https://www.asus.com/Motherboards/P5ND/