Yes, it updates a flash rom on the motherboard. These updates can often fix bugs or improve performance, but they haven't done one in a while, so I'm guessing they have things as good as they are likely to get them on the current mobo architecture.
there was the g4 upgrade block that was put into one firmware upgrade, so I guess there can be some negative side effects as well, but mostly there is a good reason for the upgrades.
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...what's with all the threads?
there was the g4 upgrade block that was put into one firmware upgrade, so I guess there can be some negative side effects as well, but mostly there is a good reason for the upgrades.