I built my PC about 5 years ago. I currently have 4GB (4x1GB) RAM but want more so i bought another 4GB (2x2GB) of the same brand, type, speed, the only difference is the size.
I took 2 1GB sticks out and put the 2 2GB sticks in (giving me 6GB) but my PC wouldn't switch on. The MB powers up, makes a clicking noise, shuts down, powers up, makes a clicking noise, shuts down. I took the 2 1GB sticks out and left the 2 2GB sticks in (4GB total). The MB powered up, made a clicking noise, shut down, powered up again and worked fine. I took the 2x2GB sticks out then put the 4 1GB back in. Once again the MB powered up, clicked, shut down, powered up and worked fine again.
I wanted more RAM because the Windows Experience Index shows it as the lowest sub score. Also when i have a lot of tabs open on IE my system slows down and becomes very annoying to use.
I have checked the Gigabyte MB memory support list and can't find either the RAM i am using or the new moduals, but have been told by several people that the list is not comprehensive and is to be used as a basic guide only.
Can someone explain to me what is going on and what i have done wrong?
PC specs -
MB - Gigabyte GA EP45-DQ6 (rev 1.0)
CPU - Q6600 @2.4Ghz
RAM (original and current) - 4x1GB Kingston HyperX DDR2 @1066
RAM (upgrade) - 2x2GB Kingston HyperX DDR2 @1066
OS - Vista Ultimate 64 bit SP2