ok I have a dell 546 with 4GB ram and I want to max it out to the 8GB that the info for the MB says it can ...MB is DRS780M02 and the processor is AMD Penom 9650 quad-core 2300 Mhz, the ram i have now is KINGSTON 1GB pc2-6400u 666(KCM633-elc) A few years ago I bout 4 sticks of 2GB ram and every time i use it my pc would BSOD and reboot :-( it is 2GB pc2-6400 800Mhz s/n 124922-0984. now the ram i have is about 1 1/4" wide were the 2GB sticks are 3/4"...I was told this does not make a difference. So since I am still wanting the 8GB is there something I need to make sure is written in the ram description? I have read that some ran is distinctly for Intel and some AMD? I am my whits end...please any help out there???