Acer Veriton Z4620G upgrade CPU

[Sailor64]

Good day!

I have the All-In-One Acer Veriton Z4620G with G550 CPU installed. I want to upgrade it to i5-2500 (CPU ID 06A7 Rev 2D). When i installed it to motherboard and power on AIO, i received the system error "Unsupprorted CPU Installed. PC will automatically power down in a few second".
   
I tried add CPU microcode to BIOS file via MMTool, but this was not successful, the error still appears.
   
   
Apparently, in the BIOS there is a test for the use of certain processors models.
Can you help me to patch BIOS file? Link to original and modified BIOS in my cloud drive https://yadi.sk/d/EeAvgkBLLlpXjQ

Updt. I found BIOS A1 version, but after flashing it the error still exist. I uploaded A1 version to disk, the link is same.

[DeathBringer]

Post screenshots of first (CPU) & third (Mainboard) tabs of CPU-Z with supported CPU.

[Sailor64]

Post screenshots of first (CPU) & third (Mainboard) tabs of CPU-Z with supported CPU.

Here is stock G550 CPU.





I have another processor, G620 (Pentium 2.6GHz), and this CPU perfectly works with this platform,  too.

[DeathBringer]

Try to flash my mod.

[Sailor64]

Try to flash my mod.

Very cool! It`s worked!

   

Pal, please, tell me how do you did it?! It was TDP issue?

[DeathBringer]

I'm not a tutor. Yes, TDP limit was 65W.