RAM upgrade not detected in PowerBook 1GHz

So I bought some cheap RAM on ebay to upgrade an old PowerBook G4 from 512MB to the maximum 1GB. It's PC133 as per the specs but when I start it up I get one beep which I believe means memory not detected. I guess the RAM isn't faulty since neither new stick works and the slots must be ok cause both worked fine with the old 256MB sticks. Could it be that the new RAM doesn't have SPD as per this article: http://docs.info.apple.com/article.html?artnum=60839
Thanks

If you've bought the RAM from someone who values you as a customer and prospective future customer, whether or not they gave you a warranty, they'll treat you well and take the RAM back for a refund or in exchange for other RAM. If they don't take a businesslike approach to customer service and don't acknowledge any obligation to you, it's easy to guess how things are going to end. All you can do is call them and state your case.
Message was edited by: eww

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