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Thread: EP45-UD3L - CPU Fan running 100% nontstop




  1. #1
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    Default EP45-UD3L - CPU Fan running 100% nontstop

    Hello everyone,
    first time here, and this place looks primising :)

    For my problem, which I hope you guys can help quickly
    my rig:
    GA-EP45-UD3L | E6750@2.6GHz | 2x1GB Ceon + 2GB G.Skill @ 800Mhz| BFG Geforce 8800 GTS 320MB OC | 2TB + 320GB WD , 500GB Samsung | Zalman CNP7700

    for my problem..
    I recently bought the G.Skill 2GB stick, and the 2TB HD, so in the spirit of change
    I installed Win7 x64, cleaned up my drives, and went ahead to update my bios
    from the F5c version to F9.
    yes I know one shouldn't update the bios unless needed... but I figured going from a beta release a 'stable' one, couldn't be bad.

    Anyhow, all went well and smooth, except that my CPU fan won't go under 100%
    harmless as it may be, it's noisy as hell... I tried reseting the bios setting, controlling the
    fan manually through EasyTune, with no luck, hell I even reverted the bios back to the F5c version I saved earlier.

    no luck whatsoever, currently i'm back on the F9...

    any advices will be appreciated, if any more details are needed, just say so

    thanks in advance!

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: EP45-UD3L - CPU Fan running 100% nontstop

    Did you load OPTIMIZED Bios Defaults immediately after flashing the bios?
    After you have loaded optimized settings, you should:
    1. save settings and exit
    2. boot back into the bios
    3. make any needed bios setting changes
    4. save settings and exit

    Which cpu cooling fan model are you using?
    Which fan header is the cooling fan plugged into?
    How many individual wires does the cooling fan have?
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  3. #3
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: EP45-UD3L - CPU Fan running 100% nontstop

    From page 57 in your motherboard user manual:
    CPU Smart FAN Control
    Enables or disables the CPU fan speed control function. Auto lets the BIOS decide whether to enable this function. Enabled allows the CPU fan to run at different speed according to the CPU temperature. You can adjust the fan speed with EasyTune based on system requirements. If disabled, CPU fan runs at full speed. (Default: Auto)

    CPU Smart FAN Mode
    Specifies how to control CPU fan speed. This item is configurable only if CPU Smart FAN
    Control is set to Enabled or Auto.
    Auto Lets BIOS autodetect the type of CPU fan installed and sets the optimal CPU
    fan control mode. (Default)
    Voltage Sets Voltage mode for a 3-pin CPU fan.
    PWM Sets PWM mode for a 4-pin CPU fan.

    Note: The Voltage mode can be set for a 3-pin CPU fan or a 4-pin CPU fan. However, for a 4-pin CPU fan that is not designed following Intel PWM fan specifications, selecting PWM mode may not effectively reduce the fan speed.
    The stock Zalman fan uses a 3-wire setup and can be used with the included manual fan speed controller.
    Are you using the fan controller?
    If not, have you set CPU Smart Fan Mode = Voltage in the PC Health Status section in the bios?

    If you are NOT using the fan controller, you should use the Voltage mode.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: EP45-UD3L - CPU Fan running 100% nontstop

    If the above does not help, try clearing your CMOS for a few hours with either the PSU unplugged from the board, or unplug it from the wall then press and hold the case power on switch for a minute - then remove battery or short CMOS Pins for a few hours.

  5. #5
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    Default Re: EP45-UD3L - CPU Fan running 100% nontstop

    well, first of all... thanks!

    I actually feel pretty stupid right now, I changed the CPU Smart Fan Mode from Auto to Voltage and it did the trick...

    On my behalf, I did follow all those steps while flashing, and until now the Auto setting did the work.


    thanks again guys :)

  6. #6
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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