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by quiksilverwv


2008 Computex Taipei

by Moto

ENERMAX ULTRA COOL EG451P-VE 450w Power Supply

Installation:

Installing or replacing a power supply is fairly simple...  It's basically the same process as the last time I reviewed a power supply: 

  • Unplug
  • Unscrew
  • Out with the Old
  • In with the New
  • Screw
  • Plug
  • Go

Very, very easy!   Total installation time about 35 minutes (if you take the time to route and tie wires correctly).  Okay, we know it's easy to install, but how good does it perform?

Performance:

I'm impressed with how it performed for me.   This is a difficult area, too.  Since I don't have an oscilloscope to measure the consistent power under load and at idle.  But,  I didn't notice any audible fan slow down under high disk access load or any other operations that cause immediate draws of power from the supply.   Here's the system it's powering: 

Component

Brand/Speed/Type

Supplied By

CPU

Intel Pentium 3 700e @ 994

Proton Computers

Peltier

72w Leufkens P3125 Peltier Kit

Leufken Technologies

Heatsink

Alpha P3-125

Proton Computers

Heatsink Fans

Dual Delta "Black Label" 38CFM HO 60mm

Cooler Guys

Thermal Compound

Arctic Silver

Small Contact Area

CoolingStore

Motherboard

Asus P3V4X

Asus

Memory

594megs Kingmax TinyBGA PC133 CAS3

Kingmax

Video Card

Elsa Gladiac Geforce2 GTS 32meg

5.32 Nvidia Detonators

Elsa

Hard Disk 1

Western Digital Expert 27.3gig UDMA 66 7200rpm

Western Digital

Hard Disk 2

IBM DJNA 13.5gig UDMA 66 7200rpm

IBM

CDROM 1

HP 9100i CDRW

Hewlett Packard

CDROM 2

Creative Labs 6x DVD

Creative Labs

Additional Fans and Cooling

(1) YS Tech 120mm

(2) Sunon 92mm

(2) Sunon 80mm

(1) US Toyo 92mm

(2) Baycooler 2

(1) Slot Cooler 

Nerdsbyte and Coolerguys

I thought that the added fan would add some additional noise.  I was wrong.  I guess they didn't put "Ultra Cool" in the name for no reason...  It's very quiet. The additional fan not only keeps the power supply cooler, the increased exhaust airflow also decreased my ambient case temp. 

Scenario

 Ambient Room Temp 

Ambient Case Temp

 Without

the Enermax 450w Power Supply Installed

27.5º C

81.5º F

29.8º C

85.5º F

 With

the Enermax 450w Power Supply Installed

27.5º C

81.5º F

28.3º C

82.9º F

Here's a somewhat crude graphic showing the basic airflow concept.

Next page: Conclusion

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