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Quiet fan!!

Discussion in 'Overclocking & Cooling' started by Django x2, 23 Sep 2009.

  1. Django x2

    Capodecina

    Joined: 28 Sep 2008

    Posts: 13,473

    Location: Britain

    Hi guys,

    I know you probably see posts like this all the time, so I apologise in advance.

    I have an HTPC with the massive scythe ninja heat sink. It 'just' fits in the case. I've been running a Nexus fan SP8025 (apparently, the worlds quietest fan).

    Is there anything better than this? It's running PWM off the cpufan header and it's set to quiet in the BIOS but I'd like something even quieter really.

    I suppose I could drop it's voltage?

    Also, is there a pwm controller for PSU fans too? I want to really trim down the noise.

    TIA
     
  2. shadowscotland

    Sgarrista

    Joined: 31 May 2006

    Posts: 7,550

    Location: West London

    why not just remove the fan and run the ninja passively?

    full system spec would also help
    Is the graphic card noisy / passive
    are your HHD in bungee cradles
    is your psu fan noisy?
    case and number/size of case fans?

    7v mod on most fans make a MAJOR differance
     
  3. Django x2

    Capodecina

    Joined: 28 Sep 2008

    Posts: 13,473

    Location: Britain

    Hi, sorry, yeah that would have helped!

    Spec is:

    Asus P5Q-EM Intel G45 with onboard gfx
    Intel Core 2 Duo E8400
    4GB RAM
    Bugee cradles = check (plus they are laptop drives
    No case fans running (OrigenAE S14v)
    PSU fan could do with trimming some noise off it. Can't remember the make off the top of my head. Will look later
     
  4. shadowscotland

    Sgarrista

    Joined: 31 May 2006

    Posts: 7,550

    Location: West London

    Nice case - but naff little extract fans,
    Looks like you already made it quieter, so good job on that front :)

    Undervolt the E8400 (if it's not already) and try running it with just the psu as an extract fan.
    Keep a close eye on temps for a few days
    If it's noisy still, consider a spcr recomened psu.
    I've run a silverstone CW01 with an exermax liberty as the only fan, was only audible at night and the 82+ is a even better

    Getting rid of the psu fan is an expensive option - happy to help if you do go down that road but try a quiet fan psu first.
    At low load the internal fans spin at 800rpm and real are inaudible for most situations.
     
    Last edited: 23 Sep 2009
  5. Django x2

    Capodecina

    Joined: 28 Sep 2008

    Posts: 13,473

    Location: Britain

    to what??
     
  6. shadowscotland

    Sgarrista

    Joined: 31 May 2006

    Posts: 7,550

    Location: West London

    Oops sorry - major edit above
    If you are asking to what volts - as low as it will go.
    At stock clocks I can get my E8200 stable at 1v on a P5Q

    Try 1.2v and keep dropping the voltage after a duel 8million superPi run then drop it again
    From personal experiance undervolting is not like overclocking - it either works or it doesn't
    there are no loads into windows, runs a SuperPI/games but fails prime issues with undervolting.
    Usually it reboots within a second of hitting load or it's stable.
    A mild underclock my help but if you encode you'll want to keep your core speed.

    I hope your board is ok for undervolting and a bios clear is easy - I guess it simular to my P5Q vanilia
     
    Last edited: 23 Sep 2009
  7. Django x2

    Capodecina

    Joined: 28 Sep 2008

    Posts: 13,473

    Location: Britain

    ok, I've removed the fan but have not undercloced the CPU yet. Its been running all night and seems stable. Played a BD last night and ripped some discs too. All seems ok.
     
  8. shadowscotland

    Sgarrista

    Joined: 31 May 2006

    Posts: 7,550

    Location: West London

    you might not need to underclock it - a small undervolt give same performance but with less heat.

    Did it make a differance in noise level?
    Is psu fan running faster or the same?