Hi, I just reformatted my PC to windows xp sp2. I had a problem with my pc last week and decided to reformat it. but before it was reformatted. I had to take off the 1gig memory stick. It used to be 2gig.
one more thing. I took off the battery in the motherboard and installed it 5 mins after. I thought resetting it would solve my problem before I reformatted the pc.
I need help

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I searched some pages. and found something about this APCI thinngy? I suppose the problem is in my bios?
my computer now starts to slow the process, especially when i am running warcraft , it spikes a bit. and during shut down. the "it is now safe to turn off the computer" appears . It used to shutdown automatically.