New
#11
It could be something wrong with your CPU, too. RAM testing can fail if its controller (the CPU) does not work properly. Obviously this is also true of the motherboard. If the motherboard has a problem, and it is not able to run the CPU properly, this can cause RAM to behave oddly.
The best way to find out if it is the CPU is to find someone with a motherboard that accepts your CPU. You can take it to a friend, or to a shop that does computer repairs, and see if someone will test the CPU for you.