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You should clean that up with some flux remover and an acid or tooth brush so we can see it better but there looks like some damage was done to pads and possibly some of the adjacent traces. Also what type of NVRAM did you install and do you possibly have another to try to ensure the chip is good? Of course be sure it's installed in the proper polarity.
Quoted from dmacy:Just wanted to add that grumpy is extremely helpful and will help you narrow down your issue.
And the patience of Job!
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