My brother has a pretty old PC Pentium D with windows 7 installed. He has a 775-Dual-VSTA mobo from Asrock which as a PCIE x16 clocked at x4. Recently I noticed that his bus was being clocked to x1 instead, restarts usually fix the problem and usually don't. Now today he went to switch on his PC and bios read 3GB Ram when he only has 2GB Ram installed!!! and ofc pc can't boot, after a few resets, the monitor would not switch on.
What do you think is the problem?
I am suspecting a CMOS problem.
Need help pls