Have read the PS thread, I THINK I know what I need - verify pls?

By macx ยท 4 replies
Oct 16, 2005
  1. I'm learning way too much too fast -

    in other words, finding out a lot of info I didn't know
    existed, and of course that I have bought into some
    junk - meaning a generic power supply incl in a case.

    From what I've recently learned, I need a PS in the
    500W range that has a thermal monitoring feature and
    a 2 pin thermal sensor cable to connect to the board to
    activate, as well as one that varies fan rpm pursuant to
    board-monitored cooling requirements.

    Also, my ASUS P4C800E-Deluxe board has what the
    manual calls a PWR Fan connection - ?? The manual
    doesn't really elaborate on that issue. Is that for
    the PS fan, or ??? Confusing as from what I know
    the PS internal fan(s) are powered from within as opposed
    to external connections to the board.

    Anyway - the sticky post suggests an Enermax as good
    quality at a reasonable price. I'll look them up - but for
    now would anyone have a recommendation so I don't miss
    something? Both as to particular model and a good source.
    Also, are they electrically stable enough that I could dispense
    with a stabilizing capacitor between the PS and the board?

    As always, thanks!!
  2. macx

    macx TS Evangelist Topic Starter Posts: 718

    Well, I THOUGHT I knew what I needed.

    Went to a site that handles Enermax PSs, and there
    are so many variations and so much jargon and so
    many terms I've never heard before, that I'm still
    pretty much at a loss.

    Here's my system

    ASUS P4C800E-Deluxe board
    P4 2.8 CPU
    2 SATA drives
    1 IDE drive
    DVD+RW drive
    ASUS N6600GT graphics card
    1g RAM (for starters anyway)

    Some of the different features I
    have SOME idea about are delayed
    fan shutoff to cool down components
    after the system is shutdown, sounds
    like a good thing, SATA drive connectivity
    (the power plugs on the SATA and IDE
    drives look the same - ??), something
    called smart fan - does that refer to
    internal or "chassis" fans?.

    I'm looking for a 450w supply.

    The board has a 2 pin connector for
    "PWR FAN" (the manual doesn't explain
    what that actually does or is for)
    and does have a 2 pin power supply
    thermal connector (I guess that's the
    thermal monitor feature?).

    And the board manual talks about a PS
    having the ability to vary (case?) fan speed
    depending on temp conditions. If the PS
    has the Thermal Monitoring feature, does this
    mean the system will be able to vary the
    case fan speeds to meet thermal requirements?

    Now - if the PS does the varying on (case?)
    fan speed, where does the 3 pin "CHA FAN"
    connector on the board come in?

    OR - is the variable fan speed referring to the
    internal PS fan(s)? and then does the 3 pin
    CHA FAN connector on the board actually
    power and run/control the fans?

    Frustrating - the more I learn, the more I find
    I don't know. One mystery solved just seems to
    lead to 3 more mysteries!

    I want to buy a PS that will do what I need it to do
    and have plenty power capacity as well as good
    power stability to preclude damage to the system,
    but some of the $150+ PSs talk more about the next
    step up in processors, etc etc, that I wouldn't seem
    to need.

    Could anybody make a recommendation for a good
    supply with all needed features and wattage without
    features for newer systems that I don't need that drive
    the price up?

    Thanks Thanks Thanks
  3. RealBlackStuff

    RealBlackStuff TS Rookie Posts: 6,503

  4. macx

    macx TS Evangelist Topic Starter Posts: 718


    Since posting this inquiry, I've cont'd to study
    this situation and some other fine folks have also
    helped me figure out what all this means, so I'm
    getting closer to understanding it.

    Looking at the links for NeoPower, now I at least
    can somewhat understand the jargon and terms,
    so agree that sure looks like a spot-on recommendation.

    REALLY appreciate all the help with this!

    I've found my existing PS would get the basic job
    done, but since the board supports all these little
    extras, I'd like to take advantage of them.

    I guess I'm somewhat of a gadget freak - I always
    like to make all the bells & whistles work :)

    Again, thanks much!
  5. Merc14

    Merc14 TS Rookie Posts: 171

    I'd suggest that you go to the PC Power and Cooling site and review there. They have done a pretty good job of discussing system power needs and PSU myths. Yes they push their own product but it is pretty much generic info. ALso, take a look at the Fortron Blue Storm 500 watt PSU. It is $91 at Newegg and has dual 12v rails at 15amps each (30 amps 12v total) and is quiet. Also has sheathed cables. http://www.newegg.com/Product/Product.asp?Item=N82E16817104934
    Really nice unit at a reasonable price
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