Your limited hardware would not be able to handle it. Not to speak of software. After thousands of years of people dressed in strange clothes spouting bullshit about how humans should be subservient and not try to be a god, becoming what could easily qualify for a god in most mythologies would be pretty mind shattering for some people.
The first thing that would happen is losing your "humanity". A concept people praise all the time, especially in cheesy fiction. A concept you'd overcome, because being human is being limited, a slave to a lot of things and concepts beyond control and often even understanding.
Knowing everything, as in EVERYTHING, would take incredible amounts of memory and processing power because of, well, everything. If you've had those things, you'd overcome the concept of time itself - by knowing every single particle's location, their past movement, and their future movement, you'd know everything and be able to see both into the past and into the future indefinitely. Sure, it is likely that there are some randomizing effects involved, and a lot of generic mind-fuckery in the field of quantum physics, but if we ignore that, I'd say you'd probably be pretty bored.
Being all-knowing would remove your primal stimuli for survival, and your drive for learning new things because there wouldn't be new things to know. That would shatter your world. Literally. You'd scoff at all the religions and traditions and other things often credited with providing meaning to life because you'd know it's not true. You'd become an absolute nihilist awaiting for inevitable destruction of everything through heat death or "big crunch", or whatever. The latter is less likely, but entropy will get ya.
Of course, that is assuming that you will also gain immortality along with omniscience. Which is sensible enough, because your brain wouldn't nearly have enough physical memory to hold even a single percent of total knowledge.
