I'm so sorry, I'm still new to this. Where do i put the text in the quote at the top? but, i did remove the overclock and it got into the Niresh boot loader and was able to get to [ ACPI PATCHER ] then it restarted. i used "-v -x GraphicsEnabler=No" and also tried without safe mode it made it to the same place just faster. Unfortunately they do not support turning Virtualization tech on. so its always off.
EVGA GeForce GTX 750 Ti SC
I can confirm that I got the EVGA GeForce GTX 750 Ti SC running on OS X Yosemite with QE/CI enabled and transparency working perfectly fine.
ECC is not supported (which doesn't bother me at all) and it's a decent GPU for budget-oriented hackintosh builds (although you may find better performance if you're willing to spend a tad more)
Amazon's image of the EVGA GeForce GTX 750 Ti SC:
The benefits of this GPU is that it can run with a 350W PSU and without any 6-pin or 8-pin power connectors attached (just powered from the PCIe-x16 slot)
What is Dell inspiron 5559 Bootflag And How to install Os x Sierra on it
My Laptop is Dell inspiron 5559.
What is Dell inspiron 5559 Bootflag And How to install Os x Sierra on it?
6th Generation Intel? Core? i5-6200U Processor (3M Cache, up to 2.80 GHz)
AMD Radeon? R5 M335 4GB DDR3
Integrated Widescreen HD (720p) Webcam with Single Digital Microphone
2 tuned speakers with Waves MaxxAudio? processing
1 combo headphone / microphone jack
Optical Disk Drive
External DVD+/-RW option
LAN and WiFi
10/100 Ethernet LAN, Dell(TM) Wireless 1704 802.11b/g/n with Bluetooth v4.0
4 Cell 40 WHr Battery
Have you had any luck with previous releases of OS X on those notebooks?
Plus did you have an option to disable/enable VT-d in the BIOS?
Did you try plugging the flashdrive into another USB port and tried again?
Have you ensured that the flashdrive you're using can load the OS X installer?
Have you ensured that the notebooks you're using can boot from flashdrives/USB?
Did you try using the safe mode bootflag for the OS X installation (-x)?
I have found external assistance for the Lenovo L420 which seems to make for an excellent hackintosh judging by the fact that nearly everything works with El Capitan: http://www.insanelymac.com/forum/topic/320306-guide-lenovo-thinkpad-l420-with-el-capitan/
I found an El Capitan guide for the Dell Latitude E6410 but I suppose the guide can be used to get you into OS X Sierra without many issues (I hope): http://www.insanelymac.com/forum/topic/308765-guide-dell-latitude-e6410-nvidia-el-capitan-clover-eng/
Armado I believe I have found a possible solution for your particular motherboard and Sierra installation: https://www.reddit.com/r/hackintosh/comments/4sil5p/audio_mechanic_old_patchfix_removal_applealc/