why my cpu fan stopped for few second and spinning again??

By alvin_lee ยท 6 replies
Aug 12, 2006
  1. recently i have bought a new graphic card Galaxy 7300 128 RAM DDR3 nad another 512 DDR2 533 mhz RAM,after using for few days i found that my cpu fan is stopping for 5 seconds and spinning again....i thought is PSU problem so i change my 400w PSU to 500w PSU..but the problem still exist!!iis that ok for the cpu fan stop for few seconds and spinning again????
    my system:
    CPU Info
    CPU 1/1
    Intel(R) Pentium(R) 4 CPU 2.66GHz
    Manufacturer Intel
    Family Intel(R) Pentium(R) 4 CPU 2.66GHz
    Architecture 32-bit
    Internal Clock 2.7 GHz
    Internal Clock Maximum 2.7 GHz
    External Clock 133.0 MHz
    Socket Designation Socket 775
    Type Central
    HyperThreadingTechnology Available - Disabled
    Capabilities MMX, CMov, RDTSC, SSE, SSE2, PAE
    Version Intel(R) Pentium(R) 4 CPU 2.66GHz
    Level 1 32 KB
    Level 2 1 MB
    motherboard : gigabyte 81915G
    graphic card : galaxy 7300 128ram DDR3
    RAM : 512 +512 DDR2
    from alvin
  2. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    It is a heat-sensitive/system-controlled fan and stops spinning when the CPU is cool enough?
  3. Rage_3K_Moiz

    Rage_3K_Moiz Sith Lord Posts: 5,443   +38

    I think that may be the case. Normally, this is common with AMD processors that use their Cool n' Quiet technology. Dunno about Intel though.
  4. alvin_lee

    alvin_lee TS Rookie Topic Starter

    got smart

    i ask my friend 2day, he said my intel cpu got smart ,if less program will consume less power but dont know whether will stop for few second and spinning again??anyone use intel cpu???thanks
  5. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    Once the fan stops, the CPU gets hotter and the fan needs to start up again?

    The thing is, you can't run an electric motor at an infinitely slow speed. So the fan has to start and stop instead of just making very slow turns.
  6. pctec

    pctec TS Rookie Posts: 20

    I have also seen power supply fans do the same thing... Its a nice feature actually. Keeps the fan noise down a bit.
  7. alvin_lee

    alvin_lee TS Rookie Topic Starter

    when the temperature going up, the cpu fan did spin again until next time when the temperature going down...so is it ok ?
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