A month or so ago, i decided that it was time for an upgrade, i got 2 gb ram from the store, and a amd64 processor, i installed the ram and the computer was working just fine, then i went ahead and shut down my PC, and installed the new processor, after installing the new processor the computer launched just fine but when the computer was booting into windows, the screen started glitching and lagging, me being stupid, i restarted the computer and tried again, my computer started booting into windows again and wabam, computer is suddenly shut down, not turning on again, i unplugged the power supply and plugged it back in, the computer started but for only a millisecond, the fan started spinning while it was on and the power button has a light on it, the computer shuts off again, and this time no light on the front when i turn on the computer and the fan spins for a nanosecond, I removed everything and it turns out it was the graphics card, I tried putting the old processor in but the graphics card isn't working, I eventually just went with it and reset my bios so i can use the integrated graphics card which was disabled, is there any fix to this or do i have to buy a new graphics card?