Hey everyone, through my employer I receive a corporate discount on lenovo PC's, without going into great detail I can get a lenovo m800 desktop with i7 6700, with 8 gigs of ddr4 for just over 500 bucks. Now my first idea was to put in a a better psu and good ram before i even turned the system on, however I read that lenovo (and most other off the shelf companies) use proprietary parts and upgrading the psu can be near impossible. Now whats scaring me is the stock 250watt 85% power supply, I don't know much about computers but if I put in 2 more sticks of ddr4 and down the road a mid range gpu, thats going to be cutting it close. Now option 2 is to save up and build my own, i did and with those specs it comes out to over a grand, right now thats not feasible. Any input would be appreciated, thank you.