Hello everyone on this forum. I have a problem regarding my computer. I have a Compaq desktop system. My system was working perfectly. Later I decided to upgrade the RAM. When I tried to install 2 GBs of ram on my system and replace the previous one. I am sure about it that I have put it properly. Both old and new RAM has same specification. But when I restarted my system it does not boot. So can it is the problem of RAM or some other if any have the answer pleases post on this forum. Any help would be appreciated. Thanks in advance.