Emachines D725 Cpu upgrade to a Core2Extreme X9000

Hello friends, I want to ask you for help with this.
I have an emachines D725 with GL40 chipset and currently running an amazing Core2Duo T9500, so good, but I was wondering if it was possible to upgrade to a Core2Extreme X9000, just for fun.
In theory it is possible, the two processors are exactly the same except for the power consumption (T9500 35W - X9000 44W), so I bought one, specifically the SLAQJ C0 010676, I thought there would be no problem but it did not work, it just turns on but nothing more. I was going to give up but I thought it might be due to some microcode update, but being a Phoenix BIOS I have not managed to insert the new microcode.
In summary It doesn't boot / it shows no error, only black screen (on) the pc is always on.

Latest BIOS V1.19 WPH file:
https://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_eMachines_1.19_A_A.zip?acerid=634544124801617134&Step1=NOTEBOOK&Step2=D%20SERIES&Step3=D725&OS=ALL&LC=EBC=EMACH_PA&LC6ES&SC=EMACH_PA_
Previous version BIOS V1.16 ROM and WPH files:
https://global-download.acer.com/GDFiles/BIOS/BIOS/BIOS_eMachines_1.16_A_A.zip?acerid=633987899168564697&Step1=NOTEBOOK&Step2=D%20SERIES&Step3=D725&OS=ALL&LC6EBC=EMACH_PA&LC6IN&SC=EMACH_PA_

Intel Core 2 Extreme X9000 specifications
:
https://www.cpu-world.com/CPUs/Core_2/In...0726M.html

Image may be NSFW.
Clik here to view.   AIDA1.JPG (Size: 91.6 KB / Downloads: 0)

Image may be NSFW.
Clik here to view.   Cpuz1.JPG (Size: 58.46 KB / Downloads: 0)

Image may be NSFW.
Clik here to view.   Cpuz2.JPG (Size: 45.24 KB / Downloads: 0)

Image may be NSFW.
Clik here to view.   HM40119.WPH (Size: 2.01 MB / Downloads: 0)

Image may be NSFW.
Clik here to view.   CPUspecsX9000.JPG (Size: 64.6 KB / Downloads: 1)