Short answer, because you asked it, means NO. Way too technical to perform unless you have all the stuff needed.
Read the links in my sig line below and post back your systems specs and PSU watts, and 5 and 12Volt output amps. You can read this off the PSU label (see pic in my sig, LABEL).
We need your mobo, cpu, video card, amount of ram, how many hdd's, optical drives. All the things that draw power.
cheers.