I have an Acer ES1-512-C88M Laptop that I am trying to upgrade it's RAM. The first time I put the new RAM in there, it worked for a 2 or 3 restarts, but after leaving it on sleep mode for about 2 hours, the next time I turned the computer on, the light just turned on and that was it. The default RAM was a Samsung PC3L-12800S 4GB RAM, and I have replaced it with an 8 GB PC3L-12800S SODIMM RAM, but whatever I try, the old RAM works, but not the new one. After a few "Googling", I went and replaced the CMOS battery, but that made it worse. Now the computer doesn't even turn on. Any ideas of how to get it back to normal but with RAM replacement? PS: Both of the RAMs have the same voltage, 1.35 volts.