Intel Core2 Quad Q6600 @ 3.0GHz, 1.4V : OCZ Vendetta2
2x VisionTek Radeon HD3870 in Crossfire
OCZ Gold 3x2GB PC3-10666 9-9-9-20
WD 74GB Raptor (10K), WD 500GB CaviarSE16 (7.2K)
OCZ Fatal1ty 550W PSU
Lite-On 20x DVD±R/W SATA
Windows Vista Ultimate x64
USB Powered Components:
OCZ Throttle 8GB flash drive
OCZ Behemoth Mouse
Razer Lycosa Mirror Keyboard and USB hub
To test the OCZ Fatal1ty 550W PSU, I first used a Craftsman multimeter to ensure accuracy of the onboard voltage sensors, both at idle and load. Then, the system was loaded with the OCCT 3.1.0 PSU test, providing an intense system load of about 547W as measured by a Kill-a-Watt power meter. This should really push the OCZ unit to its limits. I have included results from the 3.3V standby, 3.3V, 5V, and 12V sensors. OCCT's automatic headers have been removed due to illegibility at small resolutions.
For being pushed entirely to its limits, the OCZ Fatal1ty 550W performed OK. I was pretty happy with the performance on the 3.3V and 5V lines, but at 12V there was a lot of fluctuation. The almost half-volt drop between idle and load makes me think that the high starting voltage for the 12V line was intentional, to compensate for the drops during load.
Now that we've seen everything this unit can do, continue on for conclusions.