1. This forum section is a read-only archive which contains old newsgroup posts. If you wish to post a query, please do so in one of our main forum sections (here). This way you will get a faster, better response from the members on Motherboard Point.

Dear AMD,,, (Fan settings, what do you use?)

Discussion in 'Overclocking' started by Craig Fink, Jan 30, 2008.

  1. Craig Fink

    Craig Fink Guest

    ....Ten years an AMD fan, but the Fan couldn't keep up. Just returned a
    Phenom processor Quad 9500 with Al fan when the motherboard started beeping
    at me. Did something I haven't done in fifteen years, Q6600, it not true
    quad but doesn't have cache problems. The Fan was undersized in my Box.

    I'm an Nvidia fan too, CUDA...
    http://youtube.com/watch?v=WCU7wlusSDI
    ....c or c++, Fortran fan here, but parallel processing is....

    Current Fan settings on my new Q66 with ECS G31T-M...
    AMT bios
    Smart Fan Start PMM value... 0
    Smart Fan Start Temp. (C)... 37
    CPU DeltaT... +5
    Smart Fan Slope PWM Value... +15 (PWM/C)
    CPU Fan Full Limit Temp 45C

    Being green, slowing the fan down when there is no load is important, these
    settings give me at idle,

    CPU Temp 38C or 100F
    CPU Fan Speed 1070RPM

    The fan Tops out 2050RPM at 45C.

    Comments?
    What Fan setting are you using? I figure full speed at 45C leaves plenty of
    padding before my ECS G31.... shuts down at 70C.


    Ron Paul in 08! ;-)
    --
    Craig Fink
    Courtesy E-Mail Welcome @
     
    Craig Fink, Jan 30, 2008
    #1
    1. Advertising

  2. Craig Fink

    Craig Fink Guest

    peter wrote:

    > The first thing I do when I buy a new chip.........is also buy a new and
    > Better heatsink one that's capable of 120mm Fan.
    > Then I buy the fan that pushes the most air at the least noise...and turn
    > off all Fan Control and let that sucker blow.
    > Scythe S-FLEX SFF21F 120MM Cooling Fan 1600RPM 28.0DBA 63.7CFM FDB
    > Thermalright HR-01 Plus 6 Heatpipe Cooler LGA775 AM2 CPU Heatsink *Fan Not
    > Included*
    >
    > Now that the Cooling and noise level is under control.......its time to
    > over clock.
    > And as I sit here 2 feet from my OC'd Intel core 2 duo..from 2.3 to 3.2 I
    > can barely hear the thing.
    >
    > Based on the info you gave your fan settings are fine
    > peter
    >
    >


    A long time ago, I was into overclocking, still fun, but no longer feel the
    need to be on the bleeding edge. But, still fun to talk about. On article
    on Tom's Hardware on overclocking, he mentions cost of running for a year.
    Several hundred for eight hours a day.

    Yes, any old fan settings are probably fine as long as it's spinning the
    fastest it can when the cpu is the hottest. But, the green part of me like
    lower recurring costs, the power bill.

    I've been thinking about it a little bit more and what criteria is best for
    something other than spinning the fan full speed. I didn't like the default
    fan setting on my cheap motherboard. The default was disabled, no variable
    fan.

    Start PMM value was 50 with a range of 0-128
    PMM value of 0 gave half speed on the fan.
    CPU Fan Full Limit Temp was 69 degrees, only one degree below 70 (my
    shutdown temp) and way to close for me.

    Current Fan settings on my new Q6600 with ECS G31T-M...
    AMT bios
    Smart Fan Start PMM value... 0
    Smart Fan Start Temp. (C)...  37
    CPU DeltaT...                 +5
    Smart Fan Slope PWM Value... +15  (PWM/C)
    CPU Fan Full Limit Temp       45C

    I was rethinking these settings I came up with, and think I'll modify them
    again with different criteria that is the greenest I can think of, and the
    safest in terms of temperature, not running at the bleeding edge.


    Smart Fan Start PMM value... 0 ----------- Fan is spinning the slowest
    Smart Fan Start Temp. (C)... 37 ----------- Adjustment for CPU Fan Full...
    CPU DeltaT... +5 ---------I have no idea what this does
    Smart Fan Slope PWM Value... +15(PWM/C) - Maximum rate of change of FanSpeed
    CPU Fan Full Limit Temp ??C ------- Temp at 100% CPU w 100% FanSpeed
    in the Summer.

    My adjustments are Start PMM value, Start Temp, DeltaT and Slope.

    CPU Fan Full Limit Temp is the outcome of these settings.

    This will give me full fan speed at max temperature for my heatsink and fan,
    and will give me the lowest power usage at idle, and will give me the
    smallest temperature change of the CPU/Motherboard from idle to full speed
    (reduces thermal cycling).

    Anybody know what CPU DeltaT does? Should i reduce it to zero?
    --
    Craig Fink
    Courtesy E-Mail Welcome @
     
    Craig Fink, Feb 2, 2008
    #2
    1. Advertising

Want to reply to this thread or ask your own question?

It takes just 2 minutes to sign up (and it's free!). Just click the sign up button to choose a username and then you can ask your own questions on the forum.
Similar Threads
  1. Clive
    Replies:
    35
    Views:
    788
    Roland Scheidegger
    Apr 29, 2004
  2. Clive
    Replies:
    25
    Views:
    590
    Roland Scheidegger
    Apr 29, 2004
  3. flexjagger81
    Replies:
    6
    Views:
    565
    flexjagger81
    Apr 9, 2006
  4. SpamHog
    Replies:
    23
    Views:
    897
  5. Craig Fink

    Dear AMD,,, (Fan settings, what do you use?)

    Craig Fink, Jan 30, 2008, in forum: AMD Overclocking
    Replies:
    5
    Views:
    1,072
    Craig Fink
    Feb 4, 2008
Loading...

Share This Page