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Thread: z77x-ud3h System Fans Query




  1. #1
    Join Date
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    Default z77x-ud3h System Fans Query

    Hi all,

    I have 4 fans

    2 NF-F12 PWM fans connected to sys1

    1 NF-P14 volt fan connected to sys2

    1 NF-P14 volt fan connected to sys3


    The 2 PWMs seem to ramp up and down depending on the system temp.

    The 2 voltage fans connected to sys 2 and sys 3 stay at a constant speed and dont change due to temp....

    The manual says SYS_FAN1/2/3

    1 GND
    2 +12V/Speed Control
    3 Sense
    4 Reserve

    Thanks


    Can these fans be controlled via temperature?

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: z77x-ud3h System Fans Query

    Read page 47 in your mobo user manual:

    CPU Fan Control mode
    Auto Lets the BIOS automatically detect 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.

    CPU Fan Speed Control
    Allows you to determine whether to enable the CPU fan speed control function and adjust the fan speed.
    Normal Allows the CPU fan to run at different speeds according to the CPU temperature. You can
    adjust the fan speed with EasyTune based on your system requirements. (Default)
    Silent Allows the CPU fan to run at slow speeds.
    Manual Allows you to control the CPU fan speed under the Slope PWM item.
    Disabled Allows the CPU fan to run at full speeds.
    Slope PWM
    Allows you to control the CPU fan speed. This item is configurable only when CPU Fan Speed Control is
    set to Manual. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.

    1st/2nd/3rd System Fan Speed Control (SYS_FAN1, SYS_FAN2 and SYS_FAN3 Connectors)
    Allows you to determine whether to enable the system fan speed control function for the system fans
    connected to SYS_FAN1, SYS_FAN2 and SYS_FAN3 connectors and adjust the fan speed.
    Normal Allows the system fan to run at different speeds according to the system temperature. You
    can adjust the fan speed with EasyTune based on your system requirements. (Default)
    Silent Allows the system fans to run at slow speeds.
    Manual Allows you to control the system fans speed under the Slope PWM item.
    Disabled Allows the system fans to run at full speeds.
    Slope PWM
    Allows you to control the system fan speed. This item is configurable only when 1st/2nd/3rd System Fan
    Speed Control is set to Manual. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.
    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
    boondocks's Avatar
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    Default Re: z77x-ud3h System Fans Query

    I would just experiment and see which works better for you. I don't know how well the control works on that board, on the UD5H it's a little weird.
    ---------------------------
    Pic for profJim cause he didn't like my nail polish colors:
    z77x-ud3h System Fans Query-realtemp-png

  4. #4
    profJim's Avatar
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    Default Re: z77x-ud3h System Fans Query

    But hot pink is so becoming on you.
    The monkey vomit green numbers are much harder to read.

  5. #5
    boondocks's Avatar
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    Default Re: z77x-ud3h System Fans Query

    Just ain't no pleasing you, is there? besides, what's wrong with monkey vomit???? I heard it's good for cleaning motherboards.

  6. #6
    profJim's Avatar
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    Default Re: z77x-ud3h System Fans Query

    Naw, I just like to keep people guessing.
    I didn't say that there was anything wrong with monkey vomit....different strokes for different folks.
    You can keep your motherboard cleaning guru status, but one forum member isn't happy with his new mobo smell.

  7. #7
    Join Date
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    Default Re: z77x-ud3h System Fans Query

    erm.... i did read the manual and i dont think it works :)

    The PWM fans seem to speed up and slow down depending on the sys temp but the 2 other fans which are volts just run at a constant speed :/

    Can you mix both pwm and volt fans on this board?

    (NOTE: The CPU Volt fan - speeds up and slows down depending on cpu temp)

  8. #8
    profJim's Avatar
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    Default Re: z77x-ud3h System Fans Query

    Sure it works....in a convoluted user hostile way.
    You might need to connect your 3-pin fans to the Cpu_Fan header and select the Voltage option.

    Hopefully both PWM fans will work when connected to the Sys_Fan headers where you select Normal.
    You can also try Manual mode and a PWM Slope profile.

    Being a control freak (anyone surprised?), I prefer using a manual fan controller to balance cooling vs noise depending on the room temperature and how hard I'm running my system.

    Let us know how each of the above configurations works with your motherboard.
    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
    .


  9. #9
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    Default Re: z77x-ud3h System Fans Query

    i cant connect any more fans to the cpu one as it has the 2 cpu fans connected to it already :/

    The PWM fans currently work fine ramping up and down - altho they are usually at 0RPM as its that cool in there

  10. #10
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    Default Re: z77x-ud3h System Fans Query

    oh thanks for your help btw

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