Ok right now I have El Capitan success instalation on the XPS-M1330 but here are some glitches:
Success boot with Clover, hang with Chameleon Enoch r2773
Audio: having stutters, since VoodooHDA never worked for me I used my DSDT.aml patched to work with AppleHDA.kext 1.74a1
Sleep: work until wake because reboots.
Since I got success boot with Clover I give it a try to my Mavericks but I have audio stuttering as well
Also I tried Chameleon Enoch r2773 on my Mavericks but WiFi and Bluetooth aren’t recognized or something else that prevents them to work.
Glad you've had some success with M1330. I haven't yet
What DSDT did you use? Did you require any patches beyond what's on the first post? I get "Still waiting on root device" while trying to boot El Capitan from the flash drive. I suspect I need patching to fix USB.
Also, what graphics does your M1330 have? I COULD NOT get my NVidia 8400M GS graphics recognized with Clover at all. I tried various graphics flags, specifying NVCAP, putting the NVCAP in the DSDT, etc.
Also, did you use the vanilla USB method, installing from the application, or the traditional Hackintosh USB key? So far I've only got anywhere with the Hackintosh method. I can start booting using the other methods with Clover, but like I said above, no video.