Im about as confused as a baby in a titty bar...
This thread is pretty old just in case there is anyone still watching, I am running XP Pro SP3 and had 2 one gig dual channel sticks running fine. windows said it was two gigs, so now I just added two more 1 gigs now totaling 4 gigs of RAM. Bios says there 4 gigs avail 4 gigs usable and windows under system info says 3 gigs.
Ive spent the last 2 hours sifting through msg board after msg board every ones saying XP home sees up to 3 gigs and pro sees 4+ then others say any windows 32 bit will not see over 3 gigs. But I see MORE 4 gig responses for XP home or pro. According to the previous posts link XP home sees 4 Gigs. Now.... which is it, did i waste my money on the extra gig of ram or is one of my sticks bad? Is this just another a reason to buy an MAC?
Hmmmm Vista64 or switch to MAC