I have chatted to a guy Dinoop P from Samsung support.
He could only confirm that max mem was 8GB. He said CPI couldn't be upgraded, but referred me to buy the Repair Manual from their outlet, which is also known ad J&J
CPU world says "
Q: Can I upgrade my Celeron P4600 microprocessor?
A: Probably yes. Processor compatibility is determined by your motherboard. Please check CPU-Upgrade.com resource for CPU support list for your board."
on
Intel Celeron P4600 Mobile processor CP80617005307AB
and at the bottom of that page lists CPUs which physically fit into the motherboard, and are electrically compatible with the CPU socket. This does not mean they are compatible with the m/b (though it likely that some are). You might find a post in a forum somewhere )like the Samsung forum) describing a successfully upgraded CPU
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