On Board Ram Disable via Bios Editing

[f@brice]

Hello,
Can somebody help me remove onboard ram on Lenovo T15.
I allready tryed with BIOS memory SPD removal tool, but it is not working.
Type 20S7-S2JW00 Serial PF-2T1A26

Lenovo is not easy, so...
try this and report please

[pirih77]

I just checked and there is no difference between this file and the one made by spd removal tool. The hexer script for ram removal also makes the same file.

[pirih77]

Spd removal tool finds 16 to remove. Probably not all need to be removed. Anyone knows wich should i mark ?

[SMDFlea]

I just checked and there is no difference between this file and the one made by spd removal tool. The hexer script for ram removal also makes the same file.

Removing only the SPD entries isn`t going to work. There`s lots more to it, it`s complicated. The ram part numbers are in the premem PEI sections. I don`t think that filling the names with 00`s would work either.

[pirih77]

I try to learn and do as much as possibile myself, but this is beyond my knowlage

[SMDFlea]

I try to learn and do as much as possibile myself, but this is beyond my knowlage

It`s beyond mine as well. Have you checked to see if RAM can be disable via resistor straps.

[mhd bero]

@mhd bero, You can try this and report result, please, but lenovo...

Unfortunately, it didn't work, knowing that there is a dynamic ampere draw without disable with the device's BIOS file. As for the BIOS that you shared with me, the ampere draw is not dynamic.