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Thread: 120 mm fan replacement: max air flow, max air pressure or balance?

  1. #31
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    Quote Originally Posted by Fan-tastic View Post
    Hm, even if the rebate were available in my country, I wouldn't replace my Delta-build unit with a low-end EVGA, to be honest.

    I do have a question about Sanyo: their product catalogue features all sort of PWM models in detail, yet the 9S1212P4M011 seems to have been omitted from anything but the complete part numbers list. What's the PWM curve like? Probably >=800 rpm at 10% duty cycle, I reckon?
    That's about right. You might try a voltage-controlled SanAce, though. Newark only handles US sales. Outside of that, look at Farnell. Catalog says what you can buy in large lots. Stores have what you can buy individually. TBH I got my 8 Medium PWMs when a vendor ordered a little too many for a customer. Maybe you'll find one at a surplus site. Or try a mail order place like Farnell.
    CPU: Core i7 8700k, HT enabled, all 6 cores OC'd to 4.8GHz, Vcore = 1.24v
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  2. #32
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    Yeah. As mentioned in an earlier post, trying to let a DC controller run PWM fans has yielded poor results for me, so that's out of the question. I just thought it might be something interesting for a CPU heatsink, but 120 mm @ 800-1000 rpm at idle is too noisy for my taste. Well, the number of wide RPM rage fans on the market is pretty decent at least, unlike several years ago.

    @ashiekh: I appreciate the thought, however the Antec doesn't require rebuilding. It's barely three years old; I put up with the bearing noise until now as not to void the warranty.

    Anyway, I'll keep researching datasheets and reviews for the time being and let you guys know once the whole fan swap operation is all done. I'm confident I should be able to make an informed decision based in your combined input.

    PS: I've been trying to post a reply for the past two days, only to be shown an error message (500 internal server error) from the web server each time. How annoying.

  3. #33
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    Quote Originally Posted by Fan-tastic View Post
    I appreciate the thought, however the Antec doesn't require rebuilding. It's barely three years old; I put up with the bearing noise until now as not to void the warranty.
    Is there a reason you are not sending it back under warrantee?


    Quote Originally Posted by Fan-tastic View Post
    I have an Antec EA-430
    Now I am confused; the Antec EA-430 does not seem to use a 120mm fan
    https://www.amazon.com/Antec-Earthwa...70_&dpSrc=srch
    Last edited by ashiekh; 07-20-2018 at 01:35 PM.

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    Time, expense (international shipping) and the fact that the bearing noise wouldn't have been RMA-worthy given that I'm a silent freak and normal PC users probably wouldn't even notice. The Delta isn't broken or worn out, just a substandard example due to production lot variations. Also, there's no guarantee a, in terms of acoustics, "good" or better unit would have been returned to me.

    There are two versions of the EA-430: https://gzhls.at/blob/ldb/e/4/4/0/43...33aaaf20a5.pdf
    Last edited by Fan-tastic; 07-20-2018 at 02:41 PM.

  5. #35
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    That link says

    "
    ...a 120mm double ball bearing fan...
    "

  6. #36
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    Yeah, and that's both odd and incorrect. There's definitely an AUB1212L in there as I can see the label through the exhaust vent.
    Last edited by Fan-tastic; 07-20-2018 at 02:48 PM.

  7. #37
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    Then return it on the grounds of false advertising; although one drop of oil will probably solve the issue.

    Strange that Antec didn't put their sticker on the fan
    Attached Images Attached Images
    Last edited by ashiekh; 07-20-2018 at 07:34 PM.

  8. #38
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    Exhaust, not intake. Anyway, the Delta has a sealed bearing, so any meaningful improvement would have been impossible anyhow. I did unsuccessfully try to source these San Aces locally, and importation was out of the question for me because of the hassle, minimum order quantity and financial risk (effectively no refunds due to cost of return shipping) involved.

    Thus my final choice was the Enermax Twister Advance (rated for 85°C), which is surprisingly similar in overall shape and construction to the AUB1212L. Both are made of very sturdy plastic, have a motor about the same size and nine blades each. The geometry is a bit different of course, however neither appear to be designed for maximum pressure. There's a little bit of motor noise, but nowhere as noticeable or annoying as the Delta's bearing. I did keep the baffle as well, since the engineers over at Delta probably know what they are doing.

    Unrelated note, but I also picked up one of those Scythe Slipstream DB variants out of curiosity, and at least the PWM version here has one of the best DBBs I've heard to date. No grinding at all, and all things considered very little bearing as well as motor noise at any speed. What a pleasant surprise! Should make for a nice case fan.
    Last edited by Fan-tastic; 08-03-2018 at 09:32 AM.

  9. #39
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    Quote Originally Posted by Fan-tastic View Post
    Exhaust, not intake.
    My bad, I should have read more carefully.

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