Help. does BIOS need to be modified for swapping CPU on a netbook?

[Orxantuz]

Hello everyone.
i Have an old Lenovo ideapad s10-3c, i already unlocked hidden menus and changed splash screen in bios myself, now i wanted to change a CPU which is Intel Atom N455, and i want to change it on a Atom D2700, they are pin-compatible and netbook chipset NM10 seems to support this CPU. I want to know is there any pitfalls in my plan, and will it be necessary to change something in BIOS? Thanks.

[Orxantuz]

Today, i tried to add up microcodes for d2700, i got them from another BIOS of Asus VX6S. When i opened MMTool, it showed only one microcode, when i tried to add necessary microcodes, it left in ROM only the one that showed up and my two others which i added up. So, i decided to extract all microcodes with MCExtractor and re-insert them into bios and so did i, then i flashed ROM with all microcodes re-inserted (but one looked like it was corrupted, so i left it, i checked my current CPU do not uses it) and two from VX6S BIOS, then i flashed it, and now it bricked!(shows black screen). What should i do now?

[Maxinator500]

Go to repair workshop.

[Orxantuz]

Go to repair workshop.

Good joke. Ordered ch341a, it will arrive next month.

[Orxantuz]

So, my question now is how to add new microcodes into bios without removing others? Since MMTool does not work for me, is there another way to do it? I found some articles where was explained how to replace microcodes with editing FIT table, will it also work for adding new or i need other technique?

EDIT1: Just found out that my bios does not have FIT table, or i do not understand something. Can someone explain it to me?

[DeathBringer]

Adding microcode will not add support for new CPU.
Atom D2700 supports DDR3 only.

[Orxantuz]

Adding microcode will not add support for new CPU.
Atom D2700 supports DDR3 only.

My motherboard has DDR3, could it theoretically run or there are any other problems?

[DeathBringer]

N455 and D2700 aren't compatible.
So it's impossible.

[Einimas]

N455 and D2700 aren't compatible.
So it's impossible.

I was looking in a similar swap. n550 to d2700 guess thats non compatable as well? Can you elaborate?

[DeathBringer]

Cedarview and Pineview are electrically incompatible.
Check Ball Information in datasheets:
https://www.intel.com/content/dam/doc/da...sheet-.pdf
https://www.intel.com/content/dam/doc/da...asheet.pdf