Lenovo C340-14iml - Disable On Board Memory?

[Sofian75]

I had one blown memory chip (out of 4) the laptop would not work even with a ddr4 module.
I had the on board memory disabled though a custom bios and the laptop was working fine, problem is as soon as the bios get updated I have to do it all over again.

So I need your help on how to disabled the memory at the hardware level, I ve already removed the memory chips and the resistors/capacitors around them but it still won't work without the custom bios.
What else do I need to remove?

Schematics

[mcplslg123]

Mb marking? Link schematic/bdv if posted in this forum.

[ktmmotocross]

I had one blown memory chip (out of 4) the laptop would not work even with a ddr4 module.
I had the on board memory disabled though a custom bios and the laptop was working fine, problem is as soon as the bios get updated I have to do it all over again.

So I need your help on how to disabled the memory at the hardware level, I ve already removed the memory chips and the resistors/capacitors around them but it still won't work without the custom bios.
What else do I need to remove?

Schematics

u can edit bios so windows wont update it

[Sofian75]

Mb marking? Link schematic/bdv if posted in this forum.

There is the link to the schematics in my post, I could not find a boardview.

[Sofian75]

u can edit bios so windows wont update it

As I said I would like to learn how to do it on the hardware level.

[ktmmotocross]

As I said I would like to learn how to do it on the hardware level.

so u need to find strap resistors. page 11

[mcplslg123]

Useless even if you can figure it out with schematics without boardview. How on earth will you locate those resistors?