Hello everyone, I have been trying to do this mod with my HP Z440 with a Xeon E5 2640 V3. I have not found lots of documentation about this, and every time I make a BIOS and flash it (using a programmer because this system does not let you use FPT) I get a 8 beep code. I have tried 3 times. The first time I put a non-undervolted DXE driver in the top DXE folder and I went into the microcode file and I deleted all but the last line like I was instructed by a tutorial on Win-Raid. When I flashed I got the 8 beep code. The second time I tried I made some changes, I tried just removing the 306F2 microcode and leaving the 406F1 and I used an undervolted driver. this time the system would not post at all and the fans would run at max speed. I discovered that UEFITool was rebuilding every folder and it was messing up the FIT Table and the RSA Keys so I told it to only rebuild the folders I was modding instead of all of them, the two with DXE drivers and the two with microcode. I also looked at a youtuber who makes videos about this subject (MIyconst)'s modded bios for the Dell Precision 5810 which is another OEM LGA 2011V3 computer and I noticed that he put the DXE driver in the second folder instead of the first one, and I also decided to take the microcode from that BIOS and put it in mine instead of using my edited one. With these changes I thought it would work, but I got the beep code again. Can anyone help me here? I realized that the problem could be now that the microcode from the Dell bios is bigger so when i put it in it probably pushes everything else down which could be messing it up, I also want to try using a driver PEI from S3TurboTool instead of a DXE driver but besides those two things I can't think of what else I could try.