AX-7 and 80mm...
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Thread: AX-7 and 80mm...

  1. #1
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    AX-7 and 80mm...

    I just recieved my AX-7 yesterday, and am probably going to install it and everyhing else I purchased. The AX-7 is HUGE, I'll give it that. What would be the best way to attach an 80mm fan to it? I thought it would be like a normal heatsink with a spot to put a fan on it, appears that I was wrong

    What do I need to do to attach an 80mm fan to it...I've been thinking about a Vantec or Delta...both are 80+ CFM.

    Thanx!
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  2. #2
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    ok put the fan on the heatsink..then take those big ol screws it came with and screw the fan down...it is just that easy.

    the screws will go between the fins and will hold the fan down just fine.

  3. #3
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    Sweet, a no brainer! Much easier than I thought, just wasnt thinking hard enough I guess...

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  4. #4
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    yea i understand....you would figure they woould have some fancy way of mounting the fan...or at least some threaded holes.

  5. #5
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    So I just put the 80mm on with the air exhausting upwards from the heatsink, correct?
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  6. #6
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    Although I am not familar with using the AX-7, you usually want the air being pushed through the fins of the heatsink. So you want the air blowing down onto it.
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  7. #7
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    Hmm....I see. I couldn't remember which direction the other two heatsinks I used had the air blowing... I guess it would make more sense to have the air blowing onto it to cool the fins off, exhausting it may not work as efficiently.

    This is a pretty heft heatsink...do you think that a shim or anything additional should be recommended?
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  8. #8
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    I have the same hsf setup and i have tried both the fan blowing up and blowing down. I found that blowing down (towards the chip) dropped my temps by 5 degrees C.
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  9. #9
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    You shouldn't need any shims for your Athlon. While the HS is big, it sits nicely, and the 3 prong clip holds it just fine. Just use caution when installing, don't push down on the HS or twist it. The little rubber caps on the top of athlon hold the HS off the die until you clamp it down. That way the force goes straight down (the angled approach is where crushing occurs).

    BTW, you really don't need a very fast 80mm fan for the AX-7--if you don't OC. I think my fan only runs at 1800-2100RPMs. Temps hold in the low to mid 40s.

  10. #10
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    I think I started with a 2500RPM <25dBA 30CFM Evercool fan. Worked awesome. Held temps to about 40*C with my chip at default. Then when I started getting into the 1.8GHz range, I needed more power and upgraded to a 92mm Enermax adjustable, which is pushing around 60CFM for me
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  11. #11
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    Ok, I think I've come down to these two fans so far...

    This 80mm Delta HERE ,

    and this 92mm Delta over HERE .

    Although I think I would need an 80 to 92mm adapter for the bigger fan to put it on the AX-7. What do you guys think? I want to do some really good air cooling here for overclocking.

    I dont know it the difference of 53dB compared to the 48dB will make all that much difference, but it may. What do you audiophiles out there think?

    The 80mm will probably be more than efficient, plus I wont have to bother with an adapter...



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    Last edited by venom650_19; September 10th, 2002 at 09:16 PM.
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  12. #12
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    48 and 53dB are way too loud by my standards, as I run a virtually silent machine. I bought a "quiet" fan this weekend that claimed to only put out 30dB. It was too loud for my taste. I used to run max-airflow, but I got tired of freinds joking that my computer sounded like an airplane.

  13. #13
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    Yes, they are both deafening by most people's standards. I'd get the 92mm fan, basically because 48dB is f**king loud and so is 53dB, if you see what I mean.

    The redeeming feature of the larger fan will be the pitch of the noise, which may be slightly lower and less "whiney". You'll probably find it a little more bearable (in fact many people say the 80 and 92mm Deltas are way more pleasing to the ear than the 60mm ones). The larger fan will help get rid of dead air around the heatsink a little better than the 80mm one, the main reason why heatsinks become less effective at pulling heat off the CPU.

    Attaching it should be easy... it's only 6mm either side of 80, remember. Just be inventive and rig something up. No need for an adapter.

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  14. #14
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    I want an excellent cooling fan, but I just dont know how loud that will be... I cant imagine it would be much louder than what my computer is right now, which is very loud. Being loud doesnt bother me, because the only things I do on it lately is play games and watch DVD's. I just crank the ever-lasting piss outta my speakers anyhow. I never have my computer on when I'm sleeping, plus it's going to be in a different room.

    I'm just trying to find reasons to justify buying such an obsene fan... I think, at this point, I'm just going to take off the 80mm case fan I have cooling my HDD's(which is very low RPM) and mount that on the AX-7, and see how good the cooling is. I'll do some low overclocking and mess with the VCore to see where it stands for temps.

    I just dont want to order the fan and find out that it's unbearably loud, and then I'm out the cash...

    My memory should be in today...then I'll give it a shot!
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