Max RAM allowed in Acer PC

Hi there forum,

I have an ACER SA90-DB7J desktop, and I want to upgrade my RAM, which is currently 1GB. I cannot find any info' on what the max RAM is for this PC. I would like to install the max amount, for future use. Also, this PC came with on board sound, could I install an independent sound card if i wanted to?

Any advice greatfully received.

AL.


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