Legit Power Supply Reviews
OCZ Fatal1ty 1000W Power Supply Review
|Date:||Thu, Jun 14, 2012 - 12:00 AM|
|Written By:||Legit Staff|
A look inside
The cooling fan
The 140mm red LED fan of the unit is supplied by Hong Hua; not a very popular choice among high performance PSU designers. It is a ball bearing fan with an all-transparent body and blades.
Inside the Fatal1ty 1000W unit
The inside of the Fatal1ty 1000W unit is nice and tidy, even for a 1kW unit. Sirfa is the company behind this design, although OCZ certainly performed a number of enhancements. It is also interesting to note that OCZ sleeved the native connector cables all the way down to the PCB.
The filtering and rectifying stages
The filtering stage starts at the back of the A/C receptacle and continues on the main PCB. We encountered a textbook configuration of four Y capacitors, two X capacitors, two chokes and a MOV. Two bridge rectifiers are connected in parallel and attached on their own dedicated small heatsink.
At the primary side of the power supply we found two Nippon Chemicon 400V/390uF capacitors. The heatsinks of the primary side components are nothing more that small, simple slabs of metal with minimal surface. The APFC FETs are separated from the primary side transistors and are placed on a separate heatsink.
The few secondary side capacitors are supplied by Nippon Chemicon as well. Due to the thickness of the cables, OCZ had to use two solid polymer capacitors which are hidden beneath them. The heatsink holding the secondary side transistors is not huge but definitely has much greater surface than those holding the primary side components.
Sirfa’s design places the DC to DC conversion circuits on the board holding the modular cables. This is why a few of the cables return back to the main PCB, since the “minor” voltage lines are also required by the connectors hardwired to the unit.
Next Page - Test Setup
Page 1 - The OCZ Fatal1ty 1000W PSU
Page 2 - Unboxing the power supply
Page 3 - External Design
Page 4 - A look inside
Page 5 - Test Setup
Page 6 - Testing results (Regulation & Ripple)
Page 7 - Testing results (Efficiency, Noise & Thermal)
Page 8 - Final Thoughts & Conclusion