Enermax Whisper 431 watt ATX (EG465P-VE/FC)
This content was originally featured on Amdmb.com and has been converted to PC Perspective’s website. Some color changes and flaws may appear.
Enermax
power supplies were one of the first to offer dual, temperature controlled
fans. These units are particularly
popular with Intel based PC users. Many
different sizes and configurations are available, which permit temperature
monitoring and fan speed control for low noise operation.
Here
are a few pictures of the classic EG465-VE/FC with gold colored fan grills and
extra long sleeved wiring harness. It
incorporates one 92mm intake and one 80mm exhaust fan.
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Enermax
EG465P-VE/FC key features:
- Meets Intel
2.03 ATX specifications
- Intel P4 and
AMD K7 recommended
- Two ball
bearing fans (80mm and 92mm)
- Supports fan
speed monitor function on newer motherboards
- FC function
allows PC to turn off rear 80mm fan during sleep mode
- Temperature
controlled “Low Noise” power supply
- +5VSB output
rated for 2.2A
- Gold plated
connectors
- 1 year
warranty
The
Enermax Whisper 431 PSU uses both a 92mm intake and 80mm exhaust fan for
cooling. One rather unique feature is
that the rear 80mm fan is powered externally by plugging it into a motherboard
fan header. This allows the system to
control the speed of the fan or shut it down during sleep mode. The Enermax also uses an external temperature
sensor, which measures internal case temperature rather than internal power
supply temperature, and adjusts the PSU fan speed accordingly.
As
I mentioned in the introduction, some power supply manufacturers rate their
unit’s output capacity on rather low operating temperatures. The Enermax Whisper 431 is a good
example. According to the
specifications, the PSU can be operated at full load (431 watts) only if the
temperature inside the power supply does not exceed 25ºC, which is not very
realistic for most users. If the
operating temperature is more like 40ºC, then the full load output gets reduced
to 80% or 345 watts (176 watts max. for combined +3.3V and +5V).
Here
are a few pictures of the internal layout and components. As you can see there is a lot of space going
unused inside the Whisper 431 – not all bad as this allows for good airflow.
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