Re: R10000-150mHz_vs_R12000-300mHz...(?)

From: Tony 'Nicoya' Mantler (nicoya_at_ubb.ca)
Date: 03/22/05

  • Next message: arie van schutterhoef: "Re: R10000-150mHz_vs_R12000-300mHz...(?)" 
    Date: Mon, 21 Mar 2005 23:41:07 GMT

    In article <pgz8y4hxscj.fsf@kruuna.helsinki.fi>,
     Atro Tossavainen <Atro.Tossavainen+news@helsinki.finland.invalid> wrote:

    : Tony 'Nicoya' Mantler <nicoya@ubb.ca> writes:
    :
    : > The Octane can be a bit noisy if the ambient temperature is above 25c,
    : > otherwise it's not too bad.
    :
    : I guess that means the sensors are off on every single Octane I've ever
    : laid hands on (that's four R12K 300 MHz ones and seven R10K ones between
    : 175 and 250 MHz, one of them dual CPU). They are noisy as hell at our
    : normal room temp of 20'C or so. I'd hate to learn that's the quiet mode.

    I assume you've checked to be sure that the honeycomb vents aren't blocked.

    My Octane is a dual 250 with SE graphics and the PCI shoebox. It should be noted
    that installing some options will force the system into fastfan mode, which
    overrides the temperature sensors. (I think the MXI/MXE is the most common
    culprit)

    : How many fans are there in the Octane? Are they reasonably standard
    : components and is it possible to replace them with quieter ones of an
    : otherwise identical spec? I'm not afraid of getting my hands dirty,
    : particularly with the one I've got at home.

    The fans are all standard parts. As I recall, the power supply fan is a 120x25,
    the drive cage fan is an 80x25, and the frontplane fan is a 60x10.

    There's two things that cause fan noise: bearing noise and turbulence noise.
    Sadly the Octane mostly suffers from the latter, so upgrading to higher quality
    fans won't buy you any silence.

    The hard drives in most Octanes will tend to be fairly noisy compared to more
    modern units. You might want to try powering on the system with the drives
    removed to see if it would be worth replacing them.

    Even in ideal conditions the Octane is pretty far from the modern standard of
    quiet computers. It is, however, quite livable if it's kept cool and out of
    fastfan mode.

    Cheers - Tony 'Nicoya' Mantler :) 

    -- 
Tony 'Nicoya' Mantler -- Master of Code-fu -- nicoya@ubb.ca
--  http://nicoya.feline.pp.se/  --  http://www.ubb.ca/  --
  • Next message: arie van schutterhoef: "Re: R10000-150mHz_vs_R12000-300mHz...(?)"

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