With ASUS and MSI already releasing BIOS with new 0x129 microcode update, I wonder if Chris from EVGA support can give us some update when they plan to provide BIOS with 0x129 microcode? Since it is only new microcode from Intel to add to existing ones, should be trivial task to do it. 

This clowns should give a software for bios editing

Yes this I need to know

This person on TPU published a DIY microcode patcher for people to do it on platforms which aren't being updated.  They made it specifically for mobile/laptop OEMs who abandoned updates.  It may or may not work for this purpose, but I suppose the worst you could do is ask them.
 
https://www.techpowerup.com/forums/threads/intel-how-to-update-your-microcode-for-intel-hx-13-14th-cpus-laptops-mobile-easily.325403/
 

Can't you just limit Voltage to  1.55V? = max safe Voltage
 
 
Raptor Lake microcode limits Intel chips to a mere 1.55 volts to prevent CPU destruction

No, we want new BIOS with latest Intel microcode, which is proper solution. If it would be that easy, then Intel would just give out instructions to limit that voltage in BIOS.

ty_ger07
This person on TPU published a DIY microcode patcher for people to do it on platforms which aren't being updated.  They made it specifically for mobile/laptop OEMs who abandoned updates.  It may or may not work for this purpose, but I suppose the worst you could do is ask them.
 
https://www.techpowerup.com/forums/threads/intel-how-to-update-your-microcode-for-intel-hx-13-14th-cpus-laptops-mobile-easily.325403/
 

 
really dirty ugly hack.

https://community.intel.com/t5/Processors/Microcode-0x129-Update-for-Intel-Core-13th-and-14th-Gen-Desktop/m-p/1622129
 

Intel is currently distributing to its OEM/ODM partners a new microcode patch (0x129) for its Intel Core 13th/14th Gen desktop processors which will address incorrect voltage requests to the processor that are causing elevated operating voltage.
 
For all Intel Core 13th/14th Gen desktop processor users: This patch is being distributed via BIOS update and will not be available through operating system updates. Intel is working with its partners to ensure timely validation and rollout of the BIOS update for systems currently in service.

Instability Analysis Update – Microcode Background and Performance Implications 
 
In addition to extended warranty coverage, Intel has released three mitigations related to the instability issue – commonly experienced as consistent application crashes and repeated hangs – to help stabilize customer systems with Intel Core 13th and 14th gen desktop processors:
1. Intel default settings to avoid elevated power delivery impact to the processor (May 2024)
2. Microcode 0x125 to fix the eTVB issue in i9 processors (June 2024)
3. Microcode 0x129 to address elevated voltages (August 2024)

We need new BIOS with 0x129 microcode ASAP! EVGA wake up!
 

On my z690 dark kingpin running a cinebench r23 multicore test the vcore maxes out at 1.376v on my 13900k. Doing a single core test it went to 1.382v. Idling just on the desktop the vcore is at 1.35v. This is with the board at default settings as well. I've never seen the vcore go above 1.382v during gaming or stress testing. 
 
Notes: Bios version 2.03.