Roller coaster like spikes in CPU usage after installing new RAM kit.

myaccount1234

Honorable
Sep 12, 2015
99
1
10,645
Yesterday I added a new ram 8GB kit and also added an old 4 GB kit together to equal 12 GB total. Now my CPU spikes from 0% to 40% and up like a roller coaster. It goes up and down like a roller coaster. The ram is in the low 20s and is running stable. What is causing this problem?