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What's inside your power supply aside from a clutch of wires and other electrical parts. There's some obvious parts to a PSU, and some not so obvious. But we'll start with the basics. The fan being most obvious of all. OCZ uses a large, yet quiet 120mm clear plastic fan. It's your standard case fan and a quiet one at that. Four bright blue LEDs help to cast a soft glow against the spinning blades. I moves more than enough air and will help to keep things chilly.

And the most important portion of a power supply as it pertain to cool operation are the SCRs (Silicon Control Rectifiers). I'll be describing later on what function an SCR performs, but suffice it to say that they can get hot. In fact, they can get really hot. If not sufficiently cooled they have the potential of burning out. So OCZ attached some higher than average quality Aluminium heat sinks to the SCRs. These Aluminium bars may be simple extruded metal banding, but they're better than some of the other SCR heat sinks I've seen before.

Another little point that caught my attention was the small plastic shield around a bit of exposed wiring on some Ferrite cores. These Ferrite cores help to rid some electrical noise from electrical current. They also help to reduce the occurrence of rogue EM (Electro-Magnetic) interference. All electrical devices emit some amount of EMI fields regardless. These magnetic fields can affect other electrical components adversely, reducing the overall efficiency of a given electrical system. This plastic shield is a smart move on the part of OCZ. If this protective shield wasn't there, even the slightest jostle or shake could have one of the connections short out against some metal portion of the power supply. A few sparks would fly and that would be it. A dead PSU for you.

Looking further, I can't find much else to comment on. The design is sound and the construction is neat and tidy. There isn't an abnormal amount of loose wiring, in fact, no real loose wiring at all really. That's going to help quite a bit with proper air flow. OCZ was even thoughtful enough to bundle and tie wrap all the wires they could find.

I wish that there was more to be said, but the OCZ 850W GameXStream looks to be a near identical clone to the earlier OCZ 700W GameXStream. I guess if something works, you don't change it. But to get that extra 150 Watts, OCZ probably just tossed in a higher rating transformer and swapped out a couple of other small parts. Now I suppose it's time to get testing.