Yes Cybergig is right, and With the instant upgrade plugin from wordpress you can update anytime within a minute with a click on the button
InstantUpgrade link:
http://www.zirona.com/software/wordpress-instant-upgrade/
I know how to assemble one and add video cards, RAM ect.
I know you shouldn't poor oil on it if it's stuck.
Apart from that I know (MUCH) more about software then Hardware I guess.