3900 PRO noisy fan on boot

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itforsenior
itforsenior Member Posts: 6 New User

  Veriton 3900 PRO, fan is very noisy when I boot. I discovered if I hit DELETE to go into SET UP and then F10 to SAVE AND EXIT SET UP the fan speed drops to quiet. Any clues as to what bis happening here please?

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  • IronFly
    IronFly ACE Posts: 18,413 Trailblazer
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    your BIOS version is R03-A4?

     

    it looks like an issue on BIOS, maybe a reset CMOS and load default settings, can help.

    I'm not an Acer employee.
  • laurent_14
    laurent_14 ACE Posts: 10,064 Trailblazer
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    @IronFly: 2007' model. Probably the Cmos battery is low or defective. Update random of the bios thermal module.

    France
  • itforsenior
    itforsenior Member Posts: 6 New User
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       Cmos battery looked promising, the installed one was very dead, but a replacement did not solve this problem. I guess my routine is only a couple more key taps on boot up.

  • laurent_14
    laurent_14 ACE Posts: 10,064 Trailblazer
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    Hello,

     

    I would flash the bios R03-A4 under DOS.

    France
  • itforsenior
    itforsenior Member Posts: 6 New User
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       Hello laurent_14.    Started quietly at last boot up, so cmos battery may have been the problem.