Start menu -> right click on My Computer -> propertiesIf it is a intel cpu than it will have a: pentium, celeron, core 2 duo, i3/5/7 etc etc processorif its an amd cpu than it will have a: athlon, etc etc...Just google the cpu name to find out who makes it.Intel cpus only work on intel specific mobos and vice versa. Sockets are just for different generations of cpus...for example the intel pentium D processor is a lga 775 socket, while the intel core2dou processor line is lga 1156 ...and 900+ series of intel's i7s are lga 1366 socket. Amd has AM1, am2, am3 etc sockets.