Case and Power Supply - Build an Awesome PC - page 11

Certified, meaning that it is highly energy efficient since the cooling fan spins
only when there is a heavy load (when rendering high-end graphics, compress-
ing data, and so on).
The RM850 is also fully modular, meaning that you only need to attach the
power cables you need. Unlike cheaper PSUs that have a gangly wad of cables
exploding out from the transformer box, the modular design of the RM850
will make cable management much easier. And when you do decide to install
that beefy replacement graphics card in a few years, you won't need to find
a Y-splitter to siphon power off of. Just plug another cable into the base of
the RM850 like you would plug the cord of an electric appliance into a wall
socket.
Besides being bundled with more than a dozen different cable types, another
reason to go with the Corsair RM850 is because our PC case is from the same
vendor. That gives us a high degree of confidence that our expensive PSU will
fit snugly within the case and vent heat away without obstruction.
Installing the PSU
With our broad work area established, we're finally ready for the first step in
building our PC! Unbox the PSU, account for all the parts, and lay it next to
the case on the work surface.
Lay out the bags of cables and clips in an orderly fashion. Remember to dis-
charge yourself from any static electrical buildup before mounting the PSU
inside the case. And just as we did with the 500R PC case, we should verify
that the RM850 box contains the advertised inventory, as Figure 3, Make sure
all parts are accounted for before installing the PSU , on page 12 shows.
Remove both sides of the PC case using the top and bottom thumb screws
on the rear of each panel. Slide the RM850 unit, with its fan facing down,
into the lower-left corner of the case. The back of the RM850 should be facing
the rear of the case. The PSU will sit on top of rubber spacers within the 500R
case. These help correctly position the PSU as well as minimize noise from
vibration. Check out Figure 4 on page 12 , Figure 5 on page 13 , and Figure 6
on page 13 to see how the RM850 PSU should be positioned and mounted
inside the 500R PC case.
If you opt to use a PC case other than the 500R, make sure there
are venting holes on the bottom where the PSU is to be seated.
Otherwise the PSU might overheat.