Hello,
I'm reporting success on a Gigabyte H97N Wifi, i3-4370 Haswell, using the integrated HD4600 graphics.
At first, I had problems booting the installer. The status bar would load to about 80%, then it would hang with garbled Apple logos and an endless pinwheel.
I then followed the Yosemite Clover guide, but replaced all references of "Install OS X Yosemite" file with the El Capitan installer file. I put the kexts in the 10.11 directory. It booted into the installer and completed the first stage of installation, but upon first automatic reboot to complete the installation, it ran into the same hang. The only way I could get beyond this was to set the "Set OS version if not:" setting in the Clover boot screen to "10.11". It was originally set at "10.10.10".
After installation, I booted into El Capitan, did the OS X setup stuff, and all the post installation stuff from the El Capitan guide (Clover, essentials, sound). I can now boot into El Capitan without the USB drive.
Thanks to all for your help!