One of the more important tests we do when analyzing any type of hardware is thermal testing.  We will analyze internal heatsink temperature in the course of this examination.  We will chart these examinations over 20 minutes to determine which power supplies are actually benefiting from ‘automatic’ fan adjustments.  Temperatures are in degrees Celsius.  The ambient temperature was 21.0C.

Power supplies that did not have automatic settings were tested on the highest setting.  Tests were conducted inside an industry standard Chenming case with no fans running. (Lower temperatures are better)

Heat over Time

 

5min

10min

15min

20min

Allied AL-A400ATX

29.5

30.6

32.8

34.0

Antec TrueControl 550

24.2

27.0

29.6

33.4

Antec TruePower 330

26.5

31.5

32.0

33.8

Enermax EG465AX-VE FCA 460W

30.5

33.1

36.0

44.1

Enermax EG651P-VE FMA 550W

31.2

34.6

37.5

45.0

Enhance ENS-0246 460W

28.7

30.8

32.7

36.0

Fortron FSP400-60PFN

30.0

31.4

32.9

33.8

Kingwin KWI-450WABK

25.7

27.4

29.6

30.4

PC Power & Cooling TurboCool 475

23.1

25.6

25.8

25.8

Sparkle FSP350-60PN

24.7

26.2

28.7

30.4

ThermalTake PurePower 480W

30.4

35.1

39.3

42.3

TTGI/SuperFlower 520SS 4Fan

26.2

28.4

29.4

30.5

TTGI/SuperFlower 420SS

28.4

30.5

31.0

32.1

TTGI/SuperFlower 350SS

27.9

29.4

31.1

33.6

TurboLink 420W

28.8

29.7

34.1

35.0

Vantec Ion 400W

23.9

24.9

25.2

26.8

Vantec Stealth 520W

27.5

29.1

30.3

32.4

Zalman ZM400A-APF

30.5

31.5

32.7

33.4

All of the power supplies performed well in this category, from the $35 Allied, to the $130 Enermax units.  The best performer was the incredibly loud TurboCool 475, which never made it over 26C. We were a little surprised the Enermax units stayed so hot during the test, but with some tweaking the rear fans could be better manipulated by the motherboard to provide more exhaust.

Features Noise Testing
Comments Locked

70 Comments

View All Comments

  • unclebud - Wednesday, February 2, 2005 - link

    i came in here today looking for just the same thing though!
    we needs a new ps article! thanks in advance anandtech!
  • JustAnAverageGuy - Sunday, January 30, 2005 - link

    Dopey:

    It's an extremely old article. Nobody reads those except when they need to be pulled out of the vault.
  • Dopey - Wednesday, January 12, 2005 - link

    Sad to see no comments since 2003! ???
    Looking for a good power supply for AMD and review indicates that both Fortron & Zalman are good at not too high price. But looking at Antec True Power 330W I read "beware of the extremely modest +12V rail. If you are running a high end video card, or an Intel Pentium 4, this power supply simply will not produce enough juice." Both the Fortron &n Zalman deliver just 180 watts on the +12V rail while the Antec True Power 330W puts out 204 watts. And if you look at the whole list of PSUs reviewed 204 watts looks like a respecatable amount of power. So ... ????????????????????
  • MIDIman - Friday, November 7, 2003 - link

    I bought the Zalman 300w for $50 as a result of this article. Love it to death, but newegg stopped carrying it.

    1) What size fan is in the Fotron reviewed here, 120mm or 80mm?

    2) What is the model number of the 300w alternative to the Fortron FSP400-60PFN?

    3) Isn't the Sparkle FSP350-60PN reviewed here also a fotron, and what is the model number of its 300w alternative?
  • Anonymous User - Monday, October 27, 2003 - link

    You state for those PSU's that have good amoubt of voltage for the 3,3V are good for AMD.

    It will also be nice to say that most new motherboard from AMD are now using 12 RAIL e.g. 8RDA3+ many more and from what ive seen all K8 mobos use 12 RAIL

    all in all good review.

    What i have found with my TT320W that when you stress it too much and it heats up it will shit down whole system.

    Also if your PC is off for many hours if you touch the PSU its worm :S

    Ordered my Antec 550W True Control

    Also you should show how to short the old PSU so user can use 2 PSU in one system..

    I run my whole system on a 480W ProSourse untill my 550W Antec TC is here

    My GFFX5900 runs on a dedicated PSU 300W soon it will have a dedicated 480 ProSource :D

    And all my 12 fans run on a 300W generic PSU

    Also TT's seem not to like when to many devices are connected to it
  • Anonymous User - Tuesday, October 14, 2003 - link

    To know how much the exhaust air will heat a room you have to know not only its temperature but also its volume. It would be simpler to measure the efficiency of the supply.

    The tests were not very thorough at all because if they were they would have included electrical noise and current measurements and testing at full power.
  • Anonymous User - Saturday, September 13, 2003 - link

    The memory errors could be due to bad filtering more than cable shielding. Putting a 'scope on the outputs would would provide a graphic portrayal of output quality. <hint, hint> :-)

    *TimDaniels*
  • Anonymous User - Sunday, September 7, 2003 - link

    I enjoyed reading the article and I think it was very well written and the tests were very thorough. Although the article discusses "heat" and examines each power supply to see how well they deal with the heat issue, I think from a consumers point of view, you should have measured the difference in the temperature of the exhaust that is emitted from the power supply. For me that is a real issue as the heat that emits from my existing power supply probably raises the room temperature by 7 to 8 degress (to the point of making it uncomforable to stay in the room on a hot day). I want a power supply that doesn't blow out hot air. Which one of these blows the coolest air?
  • Anonymous User - Friday, August 22, 2003 - link

    As much care was taken in creating the title as in testing the power supplies.

    I hope to see another Anandtech power supply review soon, only one with proper testing. I have to give Anandtech an A for effort in this case, but I can't still give them a passing grade. Please consult with a specialist in this field for any future test.
  • Anonymous User - Wednesday, August 20, 2003 - link

    Is it just me or does the article title seems a little off? "2003 Power Supply Roundup Part II: Better Faster Cheaper" Faster? A faster P/S?

Log in

Don't have an account? Sign up now