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  • SLK 900U + 120mm fan....

    ok, I was thinking at work again (in my job, that's kind of dangerous...) and thought that maybe I could decrease noise, and yet keep my CPU cool by replacing my 80mm tornado fan with a 120mm fan. At Thermalright's site, it says;

    Thermalright does not recommend this technique as it increased much more torque on the HSF mounting mechanism and may fatigue the PCB material and traces on the motherboard.
    This is the answer to if it would be possible with a 120mm to 80mm fan conversion, but since it supports a 92mm fan, would that be more stable to use a 120mm to 92mm fan? Or would it be best to somehow rig up a suspension for the fan near the heatsink to blow the cool air onto it?

    Right now I have an Antec P160 (Love this case, though the one flaw is that those USB 2.0 ports on the front are RIGHT next to the reset button... oops.) It has a 120mm intake fan (Currently blowing onto my two full-height U160 10kRPM SCSI drives.) and then one 120mm exhaust fan.

    This case would be ultra quiet if I could take out that loud Thermaltake fan and put in a 120mm instead... quiet but cool. Right now my 3.06ghz P4 is running at 114 F idle. And usually maxes out about 140's.

    Leech
    Wah! Wah!

    In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship.

  • #2
    Couldn't you actually just try a quiet 92mm fan instead?

    PS just disconnect the reset button connector
    DM says: Crunch with Matrox Users@ClimatePrediction.net

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    • #3
      I've considered both..

      The reason I was thinking the 120mm, is because the rpm's on them are lower, so they have less wear/tear and they're quieter. Though if I could find a 92mm with the same airflow of a 120mm and the right ammount of noise... then I could have an easier time at it. I was kind of just looking for a challenge...

      Leech.

      P.S. I really do LOVE this p160 Antec case...
      Wah! Wah!

      In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship.

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      • #4
        I think a Panaflo L1A 80mm fan at about 8 VDC should cool your CPU below 65 degrees C and without much noise.

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        • #5
          Right now it's running at a nice cool 46 C. I just wish it would be quieter. Any way to make an existing fan not whine as much?

          Leech
          Wah! Wah!

          In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship.

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          • #6
            You could also mount a 120mm fan on the side of your case and use some kind of flexible duct between it and the heatsink so you don't have any added weight on the socket.

            The other day I finally got fed up with the noise from my 60mm 38 cfm 6800 RPM ginsu finger slicer Delta AFB0612EH and made a cardboard 60mm to 80mm fan adaptor for my PAL6035. Now I'm using a 50 cfm Sunon KD1208PTBX-6A that only turns over at 3900 RPM which sounds astronomicaly less annoying. And since I had it sitting around in a box not doing anything anyway the mod ended up being free.

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            • #7


              Ok, found this table, now perhaps I'm not quite reading this right, but it has the amount of other fans in your PC? And that helps determine the actual db and cfm that your fan is outputting, along with the voltage you run it at?

              (As a side question, do you change the voltage of the fan through the Bios?)

              Leech
              Wah! Wah!

              In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship.

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              • #8
                I use a coolmaster 92mm fan on my slk 900.
                iirc it about 2700rpm, 50+cfm & quiet
                my load temps have seldom seen 40C even in summer.

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                • #9
                  I have a 12V Panaflo 80mm L1A on my SLK-800 right now cooling a Athlon 1800 at ~41, and its already quiet enough (old HD is louder than it). There's instructions for undervolting your fan on silentpcreview.
                  Gigabyte GA-K8N Ultra 9, Opteron 170 Denmark 2x2Ghz, 2 GB Corsair XMS, Gigabyte 6600, Gentoo Linux
                  Motion Computing M1400 -- Tablet PC, Ubuntu Linux

                  "if I said you had a beautiful body would you take your pants off and dance around a bit?" --Zapp Brannigan

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                  • #10
                    I like the dell solution for cooling. On the dell dimension 8600.

                    A big green duct over the heatsink leading to the outside of the case with a 120 mm low rpm fan on the side of the case. It's bloody quiet.

                    Plus the case opens in a nice way too. Most manufacturers are still a way off. Not sure if dell patents it's cooling methods or not! it probably does.

                    If Dell did Athlon 64's i would definately buy one..

                    went to a comouter fair at the weekend and saw that Zalman 7000 copper cooler. It is massive and weighs a ton, was going to buy it, but thought it might break my board due to weight.

                    I'd put up with a small performance penalty to have a silent pc.
                    ______________________________
                    Nothing is impossible, some things are just unlikely.

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                    • #11
                      Originally posted by leech
                      Right now it's running at a nice cool 46 C. I just wish it would be quieter. Any way to make an existing fan not whine as much?

                      Leech
                      just run the fan slower with a zalman fanmate or put a resistor before the fan yourself. Your CPU is specced to 69 degrees C, so no need to worry about temps.. you can easily let it heat up to 55-60 degrees C during burn-in (with for example the CPUBurn program).

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                      • #12
                        dZ, I found that when my cpu temp hit 54 in the UK it would tend to hang (was usually overclocked to 2100 and running tmpgenc when this happened). I've had it reboot at 56 since coming back home while playing Fifa2004, but that might have been due to a slightly weaker PSU (the original is 220 only and a lot heavier in construction)
                        [size=1]D3/\/7YCR4CK3R
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                        • #13
                          The Dell Idea was kind of what I was going for.... except that I didn't know Dell had set ups like that Wouldn't ever buy a Dell.... I've always put my PC's together from various parts.

                          I know I don't NEED it that cool.... But it's nice to know I could overclock the bugger if I wanted to... (though at the moment there is no real need, since with the Parhelia, I get no extra performance out of it...)

                          Leech
                          Wah! Wah!

                          In a perfect world... spammers would get caught, go to jail, and share a cell with many men who have enlarged their penises, taken Viagra and are looking for a new relationship.

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                          • #14
                            Originally posted by DentyCracker
                            dZ, I found that when my cpu temp hit 54 in the UK it would tend to hang (was usually overclocked to 2100 and running tmpgenc when this happened). I've had it reboot at 56 since coming back home while playing Fifa2004, but that might have been due to a slightly weaker PSU (the original is 220 only and a lot heavier in construction)
                            but was that with a P4 model/stepping specced to run up to 69 degrees C? if not, this is probably irrelevant for leech.

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