Based on a modified BIOS with HPET ON/OFF toggle, i know you guys need it, so i contacted ASUS, and they provided it, then i modded that bios, so without further ado.
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-BIOS VERSION 9901 (Modified version with HPET OFF)
-[Updated] - Intel RST RAID EFI/OROM 14.8.2.2397
-[Updated] - Intel GOP EFI 5.5.1034
-[Updated] - Intel Boot Agent GE OROM 1.5.62
-[Updated] - Intel PRO/1000 UNDI EFI 6.6.04
-[Updated] - Intel Broadwell Microcode 1B
-[Updated] - Intel Haswell Microcode 24
-[Updated] - Intel Management Interface has been Updated to the latest version.
-[Changed] - Stock ASUS Logo has been replaced with ROG Republic of Gamers Logo.
-[Conclusion] - This version is VERY Stable & Fast, i have i right now on my PC, so i recommend everyone who has a Z97-PRO GAMER to update his BIOS.
Credits: ASUS, SoniX, CodeRush, Pacman and plutomaniac. And of course Fernando for his great job and this sick forum.
Hello there, you can flash it using AFUDOS method! I’m using this version as i’m writing this, risks? i’ve never had any problems doing bios flashes on this motherboard.
Hi, just wanted to report here; I found this thread while searching for the (long overdue) spectre/meltdown fix bios from Asus which is still not available. I have never flashed a file with AFUDOS before and it worked like a charm. Thanks!
Let me just drop some keywords for google here, hoping that more people find it.
ASUS Z97 Pro Gamer Intel Spectre Meltdown Bios Fix Firmware
I’m using this BIOS modded by Alpharevx (great work!) and I leave you some recommendations:
Turn on the HPET and let the Windows (10) manage it. Windows 10 no longer uses HPET by default (it uses TSC, Time Stamp Counter). If a program requests HPET instead of TSC, W10 will provide.
Your LAN card MAC adress was reset to 88:88:88:88:87:88. Please use below to fix
Thanks Alpharevx for this bios mod … and thanks jrmpt for Mac editor … As jrmpt, HPET OFF = slow performance, HPET ON = better performance (GTA 5 testing)
Hello! Sorry to ressurect this old thread but it’s the only place on the internet I can find anything about turning OFF HPET on my Z97 PRO GAMER motherboard. (no option in BIOS by default)
I downloaded your modded BIOS Alpharevx, however it’s in .ROM format. As far as I know you need .CAP format to be able to flash the Z97 PRO GAMER. So I’m very confused, also why is the modded BIOS named 9901? The latest official BIOS version from ASUS is 2203?
Anyway, can anyone help me? I’d like to try out this BIOS but I need it in .CAP format!
Download the BIOS and rename it for example to AsusZ97PROG.rom Copy that file to the USB pen
Download AFUDOS.EXE here Copy the file to the USB pen
Inside the pen create a file named update.txt. Open that file and paste: AFUDOS AsusZ97PROG.rom /GAN Save, exit. rename the file from update.txt to update.bat
Boot the pc from the pen. run the update.bat Done
Inside the BIOS, load the optimized defaults and turn the HPET ON. You may want to correct the mac address here