Old PC. Wat do. >Intel Celeron 3.0 GHz Dual Core >512 mb

install gentoo
buy some HDDs and make a server

OP here,
RAM is below the clusterfuck of wires

>>57734879
This, minus Gentoo. Get a phat HDD and throw debian or something on it.

Set it on fire. Anything it can do, you could probably do more efficiently with a cheap Raspberry Pi.

>>57734864
>spend money on parts to spend money on electricity for this ancient computer that a raspi could probably do the same thing as.

>>57734909
It's only 32-bit though

>>57734929
So? Debian i686 then. Or something else, whatevs. Not much else it'll be good for except a server.

You might (_might_) get an emulator running on it?

>>57734864
Replace everything in it. No point in upgrading, only thing you can keep is the case.