How to upgrade my ram

Ahmad_115

Prominent
Jun 28, 2017
1
0
510
im using motherboard acer veriton m490G
my previous ram was 2GB DDR3 PC3-10600U(Single ram) and i want upgrade it to 4GB
so i put my 4GB DDR3 PC3-10600(single ram) to replace 2GB,
but i got blue screen after i installed it..
how can i fix this? i already search in other thread but i cant find answer.. also i not really good about pc.. so i would be appreciate if u can give me a solution to this problem.. thanks