Fanless 300/350w PSU with High Efficiency

Discussion in 'Computer Components' started by mark.carline, Aug 11, 2006.

  1. mark.carline

    mark.carline
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    Can anyone here recommend a fanless High Efficiency PSU for a PC ?

    Ones I have found so far include:

    SilverStone ST30NF
    http://www.silverstonetek.com/products-ST30nf.htm

    Silentmaxx Fanless 400W ATX PSU
    http://www.pro-clockers.com/article.php?id=124

    Antec Phantom 350
    http://www.antec.com/us/productDetails.php?ProdID=24350
    http://www.silentpcreview.com/article188-page1.html

    My PC isnt using very much power so i guess I could do with a lower power one but I thought High Efficiency would do. My PC only has the following items in it:

    - ASUS N4L-VM DH
    - Core 2 Duo Merom T7200 (ES)
    - Hauppauge NOVA-T-500 (PCI Card)
    - Microsoft USB IR MCE Receiver
    - Maxtor SATAII 300Gb drive
     
  2. Andy98765

    Andy98765
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  3. GLP1

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    The SST-ST30NF worKs faultlessly in my 24/7 mCubed hFX

    Gavin
     
  4. mark.carline

    mark.carline
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    Just been reading up on these PSUs and....

    Option 1 - SilverStone ST30NF
    more reviews here:
    http://www.dvhardware.net/review67_sst-st30nf.html
    http://www.silentpcreview.com/article185-page1.html

    quote:
    Arrrgg - Looks like this PSU doesnt support PCI Express !!

    Option 2 - Silentmaxx Fanless 400W ATX PSU
    http://www.pro-clockers.com/article.php?id=124

    quote:
    Looks good but 400W is way too over the top.

    Option 3 - Antec Phantom 350
    http://www.antec.com/us/productDetails.php?ProdID=24350
    http://www.silentpcreview.com/article188-page1.html
    http://pcpartsreview.com/forums/lofiversion/index.php?t76.html

    quote:
    Option 2 is ruled out as 400W is over the top and I dont need that much, option 3 sounds a bit dodgy due to this coil buzzing and efficiency isnt as high as the others. Option 1 is looking like the best but not sure what it means about "PCI Express" compatability.

    Anyone know of any others that are worth considering (that have 80% or more efficiency) ??

    Scan seem to be selling a slightly different model called the "ST230NF" (one above is the "ST30NF") - anyone know what the difference is ?

    http://www.scan.co.uk/Products/ProductInfo.asp?WebProductID=137420

    I have also discovered that I should be looking for an ATX 2.0 supply for my my ASUS N4L-VM DH as this provides 24 pin connector as compared with my old QTechnology 20 pins connector (wonder if thats why my machine never worked in S3 mode), see this note:

    http://www.extremetech.com/article2/0,1697,1949509,00.asp
    http://tomshardware.co.uk/2004/12/23/more_performance/index.html
     
  5. mark.carline

    mark.carline
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    ...cont... gulp!! just read this about the Silverstone ST30NF fanless PSU:

    http://forums.silentpcreview.com/viewtopic.php?t=15765

    quote:

    he is drawing *alot* from this PSU though:

     
  6. shezzy2k

    shezzy2k
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    What case are you using?

    I also have the Silverstone ST30NF in an mCubed HFX and it's utterly reliable.

    Please note the following...
    1. It does support PCI Express & comes with the connector as standard.
    2. The model available at Scan is the same PSU...looks like a typo on their part (This PSU only delivers 230w in the USA becasue the the voltage).
    3. The PSU has both a split 24pin connector which can also be used on 20pin mobos.
    4. The PSU case is designed to get hot as the internal heatsinks are connected to the external case, nothing to worry about IMHO.

    I personally wouldn't touch the other two PSU's & I did a lot of research before taking the plunge.

    Your choice...
     
  7. mark.carline

    mark.carline
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    I'm using an ACCENT HT-101G (gold) as per:
    http://www.arisetec.com/products/HT-101.htm

    Hmm - dont think I can attach the PSU to the case (there will be a small gap all the way round but I guess I could put some metal plates in between the PSU and the case.

    I am hoping that with the system i am using that as its not drawing very much power that the knock on effect (with a high efficient PSU) is that the PSU will be cooler.
     
  8. SmudgerSmith

    SmudgerSmith
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    I have a ST30NF in a CLARITAS 340M case with an Aopen i915GMm-HFS motherboard and Pentium M 1.73. The PSU is always cool to touch (the only fan in the system is a tempature conrtollled CPU fan which rarely comes on)
     
  9. shezzy2k

    shezzy2k
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    Mark,

    Sorry, I don't think I was clear in my statement. When I stated "external case" I meant the aluminium body of the ST-30NF PSU. There are internal heatsinks inside the PSU which are bonded to the PSU casing to transfer & dissipate heat.

    I cannot see you having any problems with the components you have.

    I hope this helps.
     
  10. mark.carline

    mark.carline
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    great thanks for all the help with this.

    Just ordered the SilverStone ST30NF !

    Thanks!

    Mark.
     
  11. mjn

    mjn
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    FSP Zen, 300W fanless, and 86% efficient.
     
  12. mark.carline

    mark.carline
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    The silverstone turned up ok but it looks as though my original fears have been confirmed. The only other fan I have in my system is the CPU fan which adapts its speed depending on the temp of the CPU. With my old QTechnology PSU the CPU fan used to run at 800 rpm and was virtually inaudiable.

    With the silverstone now being fanless the heat from the psu seems to be dissopated around the metal case and its knock on effect is to raise the temperature of the internal components and the CPU. This then causes the temperature of the CPU to raise to around 60C and thus the fan speed on the CPU raises to 2000rpm. The overall effect is that the noise created by the cpu fan spinning at 2000rpm is higher than that of combined cpu fan noise running at 800rpm and the qtechnology 12cm fan.

    I switched the machine into "Away Mode" and left it for a couple of ours and as per the following link:

    http://forums.silentpcreview.com/viewtopic.php?t=15765

    and quote:

    I could only put my hand on the back of the PSU for around 5-6 seconds before it started to hurt.

    Any thoughts anyone ?

    Looks like i'll be going back to the QTechnology 350w supply at this rate !

    UPDATE Just swapped the Silverstone back for my QTechnology and its been on for a few hours and the overall noise is ALOT quieter now. The Silverstone will be on ebay from 7pm tonight at 0.99p no reserve if anyones interested. It works fine - just it heats up my CPU fan too much.
     
  13. shezzy2k

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    Mark,

    I'm sorry to hear of your problems with the PSU, I've tried a few & IMHO the Silverstone is definitely one of the best.

    If you are having heat problems with that fanless PSU, then I fear you will have a problem with almost all of them because they all generate heat...well the ones I've tested anyway.

    You may be better off with a semi passive like the Nesteq PSUs.

    www.nesteq.de/

    I believe that some forum members also own these, so do a search & see what pops up.

    Also I would try & return the Silverstone under the distance selling & cooling off regulations. You should be able to recoup more of your outlay than on Ebay.

    Good luck with your next move!
     
  14. mark.carline

    mark.carline
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    I think the Silverstone works fine as it doesnt get really really hot its just perhaps over the top for my system. I didnt think about the fact that running a fanless psu in my case means that theres going to be more heat inside my case and so a knock on effect is that the cpu gets hotter and the cpu fan gets faster.

    I got it from ebay 2nd hand anyway so I dont really have the option to send it back. I'm sure i'll get back what I paid for it (maybe more ;))

    Anyway - Plan B now, see this thred:

    Low power (150w) PSUs for ATX PC (ASUS N4L-VM DH)
     
  15. shezzy2k

    shezzy2k
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    LOL! Just seen the new thread and you're being recommended exactly what you are trying to get shot of.
     
  16. mark.carline

    mark.carline
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    I know.....darn.

    Effectivly I am trying to build a laptop system in a desktop style case

    I have a feeling that the Silverstone PSUs are perhaps not as efficient as the manuals say that they are.

    The laptop I am using at work (Dell D610 spec here) has a 19.5v / 4.62A power supply (90W) supply and this laptop or PSU brick isnt very hot at all.
     
  17. shezzy2k

    shezzy2k
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  18. neilneil

    neilneil
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    Can you not place the PSU in a box of it's own OUTSIDE the pc and then run extender cables into the PC. That way the heat generated by the psu is not going into the pc.

    -Neil
     
  19. mark.carline

    mark.carline
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  20. eeek

    eeek
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    So why don't you buy one from ebay?
     
  21. mark.carline

    mark.carline
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    going to.....just need to find one !
     
  22. eeek

    eeek
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  23. mark.carline

    mark.carline
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    No worries! - I'll post it tomerrow lunchtime

    That PSU isnt really what I was after - I think i'll give the Molex ones a go next time I see a cheap one on ebay.
     
  24. eeek

    eeek
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    If molex is what you are after look at the cubid itx cases (which usually include the psu). These are usually cheaper than the psu would be by itself. I have two running silently (one powering a small database and asterisk server), the other acting as a slimserver.
     

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