@REGEN - It's OK, I knew you were joking and just needed to bump, did you see my edit? I understand and am fine with thread bumps, I actually wish more people would, once every 24-48 hours or so, that way less threads get lost to me
I will work on BIOS for you right now

Asus X Hero z370 WIFI - 1602 BIOS base >>

1. HPET option
2. TCO Timer
3. IOAPIC 24-119
4. XHCI Legacy
5. XHCI Hand-off
6. USB KB/Mouse Sim
7. SPD Write Disable
8. CPU SMM submenu (ALL inner contents)
9. Legacy IO Low Latency
10. And Memory Remap (single option) >> *** Issue, see below ***
11. Microcode downgrade >> cpu906EA_plat02_ver00000070_2017-08-23_PRD_711B866C.bin

+ Secondary BIOS with ME Disabled via HAP Bit
To use ME Disabled via HAP Bit, you must write ME FW region with ME FW update tool (ME.bin included)
+ you must also write modified FD region via FPT w/ already unlocked FD
OR, you must write entire BIOS via USB Flashback with flashback hard mod done to board (or write BIOS via Flash programmer)
FD + ME must be written, or HAP Bit disable does not work - Normal USB Flashback (Non-Hard-Mod) will write neither of those

*** Edit @REGEN - On #10 Memory Remap - This is enabled by default when you load optimized, do you need it disabled??
I can't make this visible to you. At least not without spending hours to replace some other setting with this one, and it's not work it for that, I can just change to what you want

In this case, I don't need Memory Remap, it means, if it is enabled by default, not need to change it.

Ok Will flash via ME FW update tool, do you have detailed instructions?
My friend has flash programmer.

@REGEN - If you have flash programmer, and want to use that, you can program in HAP bit disabled ME FW + FD BIOS all at once.
^^ This is the only way to make this work, unless you find and do the USB Flashback hard mod for this board, or do pinmod to unlock FD (if you want info about pinmod let me know and I will link you)
Yes, memory remap is enabled by default when you load optimal defaults.

Yes please send me link to investigate pinmod.

@REGEN - Here in section E.1 you will find how to do pinmod
[Guide] Unlock Intel Flash Descriptor Read/Write Access Permissions for SPI Servicing

Once applied, DO NOT REBOOT until done with below. If you reboot without doing below, then you will need to apply pinmod again on next boot so you can do below
After pinmod applied and boot to windows >> You will need to use FPTw.exe from ME System Tools V11 package to dump FD, use hex editor edit to unlock FD per spoiler two, image two in section "B" of above linked thread
To dump FD >> FPTw.exe -desc -d FD.BIN
To write back FD after mod >> FPTw.exe -desc -f FDMOD.BIN

If you need me to edit the FD for you, let me know and I can upload unlocked FD file.

* Edit - If you don't want to do above, then to use ME HAP Bit disabled BIOS you will need to program it in with flash programmer.
I can post both BIOS now if you want? Or, I can wait for you to do above and give me FD or tell me you are ready for new FD/ME to program in with programmer to one of the boards to HAP Bit Disable ME FW

Wil this modded bios also apply on 8086K cpu? :)
Thank u for all ur hard work!

-------------

It worked just fine :D
Flashed the modded 2503 :)

Thank you! working fine Maximus X Wifi AC + i7 8700k also seen an improvement on fps

hey Lost_N_BIOS
your download links are expired....i search for a modded bios for the maximus x hero with the best/last bios version....

ROG MAXIMUS X HERO support
latest bios version is 2503 (2020/11/03)

updated bios

ROG MAXIMUS X HERO (WI-FI AC) support
latest bios version is 2503 (2020/11/03)

updated bios

RST to v17.8.4.4671 (both orom and efi)
GOP to 9.0.1109
Efi Intel to 0.1.00
Orom Intel to 0.1.16
latest microcodes
no tweaks

Updating management engine firmware also recommended,
Intel (Converged Security) Management Engine: Drivers, Firmware and Tools

As rule of thumb,keep your OS,apps,bios and drivers updated

Windows 10 enable/disable hpet:

Tap on the Windows-key, enter cmd and select to run the command prompt with administrative privileges.
To enable HPET as the only timer run the command bcdedit /set useplatformclock true
To disable HPET in Windows run the command bcdedit /deletevalue useplatformclock

Disable windows game mode
Tap on the Windows-key,select settings,click on Gaming,turn off gaming mode,game bar,background recording

For anyone looking for these bios, below is the 2402 tweaked Asus HERO X WIFI version that @Lost_N_BIOS made for me a few months back. I have not updated to the latest bios (reports this one is more stable - still use it today). Figure i'd post it here since all these tinyupload links are dead. If this one is ever dead just shoot me a PM and i'll reup.

https://www.mediafire.com/file/fatuujkxk...06AE-70.7z/file

You don’t have the non WiFi bios or?
I am looking for the non WiFi one...
I don’t care about 2402 or 2503 only a stable one without meltdown

Hello again @Lost_N_BIOS,

Asus released new BIOSes with resizable BAR support, so kindly requesting Maximus X Hero WiFi BIOS mod for v2603 with the following if available:

- Default ucode (no need to change)
- HPET option
- Legacy IO Low Latency
- IOAPIC 24-119
- xHCI Legacy
- xHCI Hand-off
- USB KB/Mouse Sim

Here's link to BIOS:
https://rog.asus.com/motherboards/rog-maximus/rog-maximus-x-hero-wi-fi-ac-model/helpdesk_bios

Much thanks!

@Lost_N_BIOS
Hello good sir and thank you again for your hard work.
I am bothering you again cause my motherboard
Asus Hero X WiFi got bios update for Windows 11.
The previous bios that you made for me(one year ago)
is still on the system and is working flawlessly and i love it, but i would like to try the Windows 11 .
Thank You again. Be well!


Unfortunately the bios file is larger than 6 MB and I can't attached it to the post.
Here is the link to the BIOS(Please if you can make a mod of the newest one 2701 at the moment).
For some reason dose not allowing me to post the full link. HTTPS is on the front of the link.

://rog.asus.com/motherboards/rog-maximus/rog-maximus-x-hero-wi-fi-ac-model/helpdesk_bios

Please Enable following BIOS Options -
1. HPET option
2. TCO Timer
3. IOAPIC 24-119
4. XHCI Legacy
5. XHCI Hand-off
6. USB KB/Mouse Sim
7. SPD Write Disable
8. CPU SMM submenu (ALL inner contents)
9. Legacy IO Low Latency

- CPU Microcode edit to pre-Spectre/Meltdown for i7-8700K/906EA
- Please Remove The latest Rev from the bios and Replace with Rev 70 (8/23/2017)(I am not completely sure if this is the last one before Spectre/Meltdown)