I hit 1 to Rename to Asus USB BIOS Flashback. Did it re-flash the MOBO? It never asked me for a place to save anything. It seemed to patch the microcode successfully. I selected 3A because it had the latest date. I could not select 22 (or 19) because neither of these numbers were listed. I selected 21 because it had the latest date. I could not select 17 because there is no 17. Selected 1 for Update CPU MicroCode Haswell-E and/or Broadwell-E Selected 7 for Update Intel CPU MicroCode It seems to be detecting the loaded BIOS - not the one I just downloaded. The first thing I got was a warning about the BIOS being on the Aptios 5 platform. I downloaded the UBU tool and MMTool and ran the UBU BAT file. I downloaded a copy of the latest BIOS for this MOBO - 1801. Maybe you can help me out with this? This is on an X99-Deluxe II. I also can't figure out where it saved the modified BIOS file. IO tried to follow your guide exactly but things did not go as described. Good luck and happy overclocking!Ĭlick to expand.This is interesting stuff for sure so today I tried it. In particular, this seems to be the reason why microcode 19 is stated to be the best for overclocking in the UBU tool, as not enough testing occurred to show 22's improvements. I suspect it's because people lost interest in testing Haswell microcode by 2017 when 22 was released. I haven't seen this microcode talked of anywhere else. If you have an ASUS board without USB BIOS Flashback or otherwise can't get your modified BIOS to flash with any method, follow the steps to use AMI's AFU tool in this thread. Check online to see how best to update your motherboard's BIOS. While some motherboards allow the edited BIOS to be flashed conventionally, ASUS users must use USB BIOS Flashback to get around safety checks. *Back up your BIOS settings/profiles before flashing!* Flash the updated BIOS with your preferred method. If you don't have an ASUS board it will let you keep the original BIOS name or leave it as bios.bin to be renamed as necessary.ħ. Hit 0 to exit, then hit 1 to save it with a USB BIOS Flashback compatible name. Press 1 and enter to navigate to the list of microcodes, type 17 for the latest broadwell microcode (makes no difference what you choose for broadwell) then type 22 for the Intel microcode (19 says it's the best for overclocking, but my testing says otherwise).Ħ. Once all the modules have loaded, navigate to the CPU microcode section by pressing 7 and enter.ĥ. Run UBU.bat and select your saved BIOS file. Acquire a copy of your BIOS from the manufacturer's product support site or otherwise.Ĥ. A copy can be found here under the link MMTool (aptio 5): ģ. Download MMTool.exe and put it into the folder with the UBU.bat file. Download the latest UBU tool from the linked thread.Ģ. Either use the extensive guide found on the thread, or use the guide below.ġ. This simple process is done through the UBU tool and instructions found in this guide. I take no responsibility for failed BIOS flashes. If you don't feel comfortable with this, don't attempt it. I even found 5GHz to be within stable reach.ĭISCLAIMER: This involves flashing your motherboard with an edited BIOS. For some this is enough to increase their clockspeed beyond what was possible before, for others it means running the same clocks at lower voltages and temperatures.įor me, I went from 4.7GHz to 4.8 at the same voltage of 1.3v, and got a clockspeed that originally crashed with my motherboard BIOS' stock microcode 19 on starting a x264 stress test. Reported voltage reduction for a given clockspeed varies from 0.04 to 0.01v with an average of 0.02v, depending on CPU and initial overclock stability. So far this has been replicated multiple times by myself, LostParticle, and users in this thread. To update your BIOS' microcode and try for yourself, follow the simple steps in the spoiler below. I found this out accidentally, but have found the improvement over previous microcodes to be 100% reproducible, and another user has posted similar results. Summary: The latest CPU microcode 22 (released in 2017) improves overclocking for Haswell over previous microcodes. I made posts in various threads on this topic but have decided to make a thread to keep information and testing from getting buried.
Hello fellow Haswell/Devil's Canyon overclockers!