Every time I turn on my computer, just a few seconds after my desktop loads up, the computer completely freezes. I can't move my mouse and ctrl+alt+del doesn't work. The keyboard freezes too. When I press Num Lock or Caps Lock, the lights on my keyboard stay exactly the same.
My specs are:
GIGABYTE GA-MA78GPM-DS2H Motherboard 780G Chipset
G.Skill 2GB DDR2 800
ASUS TOP HD 4850
Windows XP SP3
I think this started happening when I added in some more RAM. I wanted to go for 4GB (I know it was 3.25. I was preparing myself for Vista 64-bit) so I ordered another set of the exact same G.Skill RAM
to have 4GB (4x1GB), but when I received the pair, I noticed it was a little bit different. The design was different, and I think it was an updated version. Ever since then, my computer's been unstable.
I had my Phenom overclocked to 2.46GHz which was rock stable after 15 hours of Prime95. However, once I added in the pair of RAM, everything became unstable. So I reset my BIOS and everything was on stock settings, but even then, while playing games, my computer would just bleep out and restart.
So then, I took out the extra pair of RAM, and was running with the original 2GB. Since then, once in a while, say a fifth of the time, whenever I turned on my computer, right when my desktop loaded, the computer would completely freeze, as stated in the beginning. However, now it's become every single time. Every time I turn my computer on, it does that.
I found a temporary but an impractical solution, which was that as soon as my desktop came up, if I clicked the start menu, and the start menu came up, the computer wouldn't freeze. I have no idea why or how this works, but it does.
Do you guys have any idea what it could be? If it's a software problem, then I'm fine, because I'm reformatting my hard drive anyway with a new OS (Vista 64-bit) and new RAM (4GB DDR2 1066). However, my somehow my motherboard got damaged, that wouldn't be good.
Any help would be tremendously appreciated.