Originally posted by apokalipse
ive heard mixing RAM can have bad effects, is it possible for you to get matching 512's?
That's rubbish. I've mixed different sizes before and have never had a problem. The only time where you might (emphasis on might
) have a problem is when you mix different brands and you have an old MB that has banks of 2 or 4 and have to install in pairs. As the wafer chips might come from different lots sold to various vendors, it might cause an odd issue with such older MBs. But even so, such problems would be so few and far between I doubt there's any need for concern.
Where you might have gotten confused is perhaps you heard someone say that certain PCs/laptops use proprietary components. i.e. Compaq is notoriously known for using RAM modules designed to work only for their motherboards. In such a case, you're forced to buy memory sticks only from Comcrap as using other brands will cause lock-ups/issues, etc.