Jake Lo

Different BIOS uses different utility. Are you able to dump the rom file with the utility I posted?

You can just install AppleHDAIDT, use the hot patches found in my bootpack here. Also need to add a new one for Sierra AppleHDA find 8A19D411 replace 00000000

generate a new one.

try here https://forums.lenovo.com/t5/Lenovo-A-B-C-N-S-Flex-Horizon/Universal-BIOS-Backup-ToolKit-2-0/td-p/1205920

Here you go, BIOS A12 DSDT.aml.zip

Prerequisite: Set DVMT to 96MB (0x3) as per FireWolf’s guide. Steps to change the DVMT value (Done on Windows or WinPE) 1) Universal BIOS Backup ToolKit 2.0.exe - to backup the BIOS 2) UEFITool.exe to find the module labeled Setup or something with Setup in it and extract the PE32 image section (setup.bin) 3) Universal IFR Extractor.exe to extract setup.bin to a readable text file 4) Use notepad to search for “DVMT” in the text file, Locate the value where DVMT is found 5) Format a USB drive to fat32 and create a folder name EFI (SD Card works too) 6) Download the EFI Shell and extract the Boot folder to EFI folder 7) Boot system with the USB and select UEFI Boot 8) At the grub prompt, enter these commands, hit enter after each command, then exit and reboot setup_var 0x3 i.e. setup_var 0x432 0x3 To verify, just enter setup_var 0x432 and hit enter, the value will be listed Note: May have to reset setting again after BIOS upgrade If you need help, then just extract the ROM file, compress and attach it here.

Ok, when you install Clover loader, what settings did you apply?

AppleHDA should be vanilla in /S/L/E and AppleHDAIDT should be install to /S/L/E or /L/E. Should have layout-id set to 12 or (hex 0x0C) in DSDT or 12 in Config.plist under device/audio. If you installed AppleHDA overwriting the vanilla kext and you have audio in El Capitan, then it means you have a patched AppleHDA instead of using the dummyHDA (AppleHDAIDT) + hot patches in Config.

Yes, setting DVMT is a prerequisite.

You can also install Clover to your External drive with files for Sierra. When you launch Cloverxx.pkg, select change install location and select the external drive, then customize to set your option. Reboot system. Select F12 during boot and select boot from your external USB drive and it'll load Clover from that drive.

Is this 128 or 256GB Liteon SSD? There's suppose to be some firmware upgrade. http://www.dell.com/support/Article/us/en/04/QNA42708/EN or http://www.dell.com/support/home/us/en/04/Drivers/DriversDetails?driverId=T7R1K

See here for building Installer. Read here for more info and bootpack. Does your system have the Nvidia graphics too?

Indeed there's an ON/OFF switch on the right side for the E7440 system.

Not running 10.12.1 PB4, so can't tell you. you could try this sudo pmset hibernatemode 0 sudo rm -f /var/vm/sleepimage sudo pmset hibernatefile /dev/null

Why not just install Clover to the external drive and update the EFI/Clover files there?

Even with Legacy Bios, you should still have EFI partition. Check to see if you have Corestorage. in terminal, enter diskutil cs list or diskutil list and you'll find a virtual drive if exist.

Boot into OS X, mount the EFI partition, you'll see that /EFI/Clover/ACPI/Origin has all the extracted raw files. Compress the folder and attach it here.

Looks like you have full QE/CI, what is the issue?

Try this DSDT

Boots off USB fine on my end. Please upload your Clover folder. Probably just need to enable USB: inject, Add ClockID, and FixOwnerShip in the Config file.

Most likely you have the newer BIOS version. Known issue for Dell Exx30 models where BIOS version over A12 causes artifacts. If you have something newer, you'll have to downgrade to A03 and then upgrade to A12.

No file attached.

Looks right.

R5beta1: The infamous trackstick mouse jumping 45 degree to the right is back when you lift your finger. Middle button scrolling is no longer working Can't click and drag window with trackstick Can't right click or select cuz trackstick keep jumping to the right 45 degree Can't highlight with trackstick

The kext I linked is for your keyboard/touchpad. Sorry, I thought that was implied.