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Weird noise coming from my new system.

Discussion in 'General Hardware' started by Rossdh, 19 Feb 2010.

  1. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    Hi there just completed my first ever build yesterday. I've tried my first overclock this morning and everything seems stable enough but there is a weird noise like a hissing/whistle coming from somewhere in the system whenever I stress test. My specs are:

    i5 750 @ 3.8Ghz core voltage about 1.4v bus speed 200 multiplyer 19
    Gigabyte P55 UD5
    Noctua NH-U12P-SE2
    4Gb G.Skill Ripjaw DDR3 1600Mhz @ 1600Mhz CL8 using XMP
    Nvidia 9800GT

    Temps seem ok:

    Core 0 @ 82 degrees
    Core 1 @ 82 degrees
    Core 2 @ 75 degrees
    Core 3 @ 79 degrees

    What could the noise be? It better not be the CPU melting!!! Could it be that the motherboard capacitors are getting overloaded??? Any help chaps will be grately appreciated. Cheers.
     
  2. pastymuncher

    Man of Honour

    Joined: 12 Jul 2005

    Posts: 19,102

    Location: Aberlour, NE Scotland

    Is'nt that voltage too high for a i5? Noise could be the psu. What make and wattage is it?
     
  3. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    Oh and I'm using Prime95 for stress testing. Also, just noticed, when a new test starts on Prime95 it stops then starts again.
     
  4. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    Crud, is it? PSU is a Corsair HX650W
     
  5. pastymuncher

    Man of Honour

    Joined: 12 Jul 2005

    Posts: 19,102

    Location: Aberlour, NE Scotland

    Some psu's experience capacitor whine with certain graphics cards so it could be that. Take the side panel off and listen for where the noise is coming from.

    I will let someone else confirm the voltage is ok/too much as i have no experience with i3/5/7 but i was sure i read somewhere that Intel recommends a max of 1.35v.
     
  6. EsaT

    Sgarrista

    Joined: 6 Jun 2008

    Posts: 9,710

    Location: Finland

    Yep, positively very high even if we assume 10C delta-T between Tcase and core.
    http://processorfinder.intel.com/details.aspx?sSpec=SLBLC



    Coil whine.
    Capacitors are essentially solid components without any loose parts inside unlike coils.
     
  7. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

  8. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    Cheers guys
     
  9. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    So my temps are too high?
     
  10. Rossdh

    Hitman

    Joined: 13 May 2009

    Posts: 803

    Location: Glasgow

    Sorry, dunno why I've just posted that about 5 times
     
  11. Captain Fizz

    Mobster

    Joined: 30 Oct 2002

    Posts: 4,058

    Location: Inverness (UK)

    I get exactly the same with the UD3. 8800GTS (640mb) & FSP600W PSU.

    had it on previous builds too.

    At 4GHz it's louder btw. :p

    I don't like the noise but it's only when the CPU is flat out which is rarely in everyday use.
    If it's the coils in the PSU the hopefuly it'll get quieter again when I upgrade the R5 array from 4*3 year old drives to 3*Green drives?