4-Step Function
Temperature (Celsius)	Speed(RPM)	Function
50	970	Fan will start rotate when temp reaches 45~50 degrees.
60	1240	Fan will start rotate when temp reaches 55~65 degrees.
70	1422 ~ full speed	Fan will start rotate when temp reaches 65 degrees and above.
Auto	0 ~ 1500	When switch to Auto mode, the fan will start rotating when the power is on.
A tolerance of +/-5 degrees is detected at 50, 60 and 70 degree settings

     The 4 settings control the RPM of the giant fan that installed on the power supply.  By using a large fan, Aero-Cool can move more air at less RPM's which results in lower noise.

Testing

     I used my trusty multimeter and measured each rail, while the computer was at idle and while it was under a load.  Here is the test system.

Results

     I can only give you my opinion on the sound level of the power supply, as I do not have a sound level meter.  I do not run a dead silent PC.  Although my computer is water-cooled, I still have some fans.  I can tell you that the sound was noticeably less with the ZerodBA than my old power supply.

Conclusion

     This is a very impressive power supply.  The voltages didn't budge.  With the modular connections, I was expecting more fluctuation.  All I got was rock solid voltages on all rails.  The power supply meets all of the criteria for all of the newest technology.  It supports all of the dual video card formats as well as the dual core CPU power requirements, plus you get a little bling thrown in for free.  This power supply will more than meet your needs for your system.  Aero-Cool did a great job on their newest power supply and I'll highly recommend it for all of your computing needs.

Club Overclocker Rating
Innovation:	9.5 out of 10
Performance:	10 out of 10
Quality:	10 out of 10
Stability:	10 out of 10
Compatibility:	10 out of 10
Overclocking:	N/A
Software Pack:	N/A
Value:	9.5 out of 10
Overall Rating 10
Skill Level
Project Skill Level (10 being hardest)	4 out of 10