Yes, installed 2 new different rams but none worked.

Is it necessary to do a rtc/cmos reset when installing a new ram each time orshould it at least detect them and change the led code ?...

It looks like i did a mistake when changing some settings for the ram with setup_var_3 commands in grub.

First it worked all for unlock undervolting, but then i changed the frequency or i used a wrong var value..

Now no boot and no screen.

Led code 2 amber 3 white no ram detected.

I installed 2 different new ram but no luck.

RTC reset not helping
Cmos reset not helping

I tried everything what the manual say and what i could find elswhere.

Is there a possibiliTy to revert my mistake ?
Why is...