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    #1

    Cool & Quiet? Not very

    I have built up two AMD boxes recently, one the EVGA NF41 (939) and the other an Asus M2A-VM (AM2).

    I put AMD OEM fan/heatsinks on both. Both run cool, but the fan noise is ridiculous. Both fans have a pretty extreme angle on the fan blades.

    I am running Ubuntu 10.10. I looked up Cool 'N Quiet. Wikipedia entry suggests fan speed is determined by onboard thyristor, but both these are running cool as per BIOS CPU temps.

    The EVGA fan is running at 3100, don't know about the ASUS.

    I've gotten spoiled by the Acer Aspire M1640 that I assembled from parts, which runs really quietly.

    Why so much fan noise?
    Tags: None
    #2
    Re: Cool & Quiet? Not very

    Small fans make more noise than big ones to achieve the same cooling.

    Is there any fan control in the bios that you can enable, or are you running them full speed all the time?
    A man convinced against his will is of the same opinion still.

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      #3
      Re: Cool & Quiet? Not very

      Odd... every AMD system I've built has been damn near silent. Perhaps the fan control isn't working? Check in the BIOS, like ACS suggested.
      Ludicrous gibs!

      Comment

        #4
        Re: Cool & Quiet? Not very

        I recently built a quad-care phenom system (Skt. AM3). The stock cooler made a rediculous amount of noise. The fan was spinning close to 4000rpm and the idle temp was around 40*C. It got replaced witha CoolerMaster Hyper TX3. It was dead silent and the idle temp was only 30*C
        I love putting bad caps and flat batteries in fire and watching them explode!!

        No wonder it doesn't work! You installed the jumper wires backwards

        Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

        Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

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          #5
          Re: Cool & Quiet? Not very

          usually on a lot of motherboards the PWM/CoolnQuiet must be turned on. Also, if you bent a fin or somethign on those cheap fans, it will make noise.

          Comment

            #6
            Re: Cool & Quiet? Not very

            Foxconn fan? AMD uses them on the stock heatsinks sometimes. Fans from Delta, Adda, NMB, Nidec, AVC are usually decently quiet for what they are. They're not quiet fans by any means, but they don't usually make an unacceptable racket for an "off the shelf" computer. Whatever bearings they use in the Foxconn fans are awful though. They're noisy and one day seize up without warning.

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              #7
              Re: Cool & Quiet? Not very

              If the fan seems to be running at full speed as others said check the bios. This can also happen if the thermal compound isn't adequately making contact and the CPU temps are getting too high. The mobo will throttle the fan up to cool it down.

              I got the Intel CPU for my current rig on e-bay used just the CPU no heat sink so I never tried the stock cooler. I went with an Arctic Cooling Freezer 7 Pro. It's also compatible with AMD processors it's around 29 bucks and is beyond silent. Most if not all well designed aftermarket coolers will outperform the manufacturers penny pinching stock cooler.
              Last edited by Krankshaft; 01-22-2011, 03:17 AM.
              Elements of the past and the future combining to make something not quite as good as either.

              Comment

                #8
                Re: Cool & Quiet? Not very

                I rebuilt my desktop which is in my bedroom. I used the Asus M4A785TD-V EVO board. I have the NZXT Nemesis Elite case (3 120mm case fans). The mobo has only the CPU fan. Stock CPU fan (AMD Athlon II X4 640 Propus 3.0GHz). Quieter than my old setup (Asus A8N-SLI/Athlon64 3400/Asus 9500GT video card). Rear fan runs on the mobo with Quiet&Cool enabled in BIOS. The side and front fans run off my TrashPowerII-550's 'fan only'. System temps are good (below 40C even on prime95).

                It runs 24/7, mainly used as the bedroom TV PVR. It's a shame because the hard drive (640GB Caviar Black SATA 3Gb) is noiser than all 4 fans!

                BTW, I pull the power supply every 6 mo and give it a thorough cleaning and going to recap it next time its out.......
                Stupidity should be a crime, especially for drivers. I have NO patience for them.

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                  #9
                  Re: Cool & Quiet? Not very

                  Thanks for the suggestions. I did look into the BIOS and found that SmartFan is not enabled by default.

                  So I enabled Smart Fan on both motherboard fans.

                  Now the fans speed up and slow down constantly, sounding like a wind whistling around your house on a cold winter night.

                  The stock fan has to go. This is on the 939 EVGA that I am still going to recap.

                  I'll try the Asus board next, but it's compromised by the X300 integrated graphics that don't play nicely with Linux.

                  Comment

                    #10
                    Re: Cool & Quiet? Not very

                    speedfan!
                    "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken

                    Comment

                      #11
                      Re: Cool & Quiet? Not very

                      I'm planning to disable the onboard Radeon graphics and reusing the 9500GT card once I recap the TP-II. The 9500GT uses a large 90mm fan (it barely fits on the card, but the fan is stock along with the flower-shaped copper heatsink).
                      Stupidity should be a crime, especially for drivers. I have NO patience for them.

                      Comment

                        #12
                        Re: Cool & Quiet? Not very

                        Odd... maybe I'm just not very sensitive to fan noise. I hear the Dell small formfactor machines rev up and down constantly, but never any AMD system I've built. Maybe it's different now... the last machine I put together was about 3 years ago.
                        Ludicrous gibs!

                        Comment

                          #13
                          Re: Cool & Quiet? Not very

                          So today I put a PCI-E card in the Asus, overriding the ATI x300 OB video.

                          The noise went way down. I guess the constant video errors the x300 was logging was stressing the board. So this one is now usable!

                          The EVGA I will put aside til I recap it. I suspect the SACONS are causing the cycling fan speeds

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