Sigma Shark 635 Watt ATX Power Supply Reviewajmatson -
To install a power supply is quite simple and only takes a couple of steps. First thing you will want to do if you haven't already, is to remove the old power supply. To do this, first unplug all cabling from the motherboard and any components. Then remove the four screws in the back of the computer chassis going into the computer supply. Tilt the supply downward and out of the case. Since this is so close to the CPU fan and parts of the motherboard I suggest you work slowly and cautiously, so that you do not cause any damage to the parts of the computer. If your case has a removable motherboard tray I suggest taking it out prior to changing the PSU.
Now that the old one is out, let's install the new one. Carefully slide the Shark into the PSU bay, watching that you don't damage any of the motherboard components or the CPU fan. Once into position, take the four screws included in the packaging and screw them in to secure the PSU. If you're into cable management like myself, now would be a good time to plan where you want your wires to go. Then plug in all of the cables needed and tuck away the ones not being used. This creates better airflow in the case.
Now that it is all set up and plugged in, insert the main power plug into the back of the PSU and the wall, turn on the switch and start the computer. Sit back and enjoy the work you have just accomplished. Here you can see the nice blue glow that the power supply gives off in my system. I love how it is just the right amount of light, not too dim and not bright. Perfect to accentuate the internals of the system.
Note: This is just a guide for users that have knowledge of a computers working parts and OverClockersClub.com takes no responsibility if damage occurs while changing your PSU. If you are not experienced in computer hardware, I recommend that you take your computer to a professional to avoid any problems.