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Thread: P35-DS4 fan problems




  1. #11
    Join Date
    Nov 2007
    Posts
    21

    Default Re: P35-DS4 fan problems

    Quote Originally Posted by jriker1 View Post
    I agree with you whole heartedly. Not sure why the support here is less than adequate, however in Gigabyte's defense, most all motherboard manufacturer's support is less than acceptable. Must be something to do with the quantity of boards sold and the number of things that can go wrong with them. When you have numerous people with this problem, RMA's aren't going to help. I'm going to try and use the power supply fan connector and see how that works since my power supply doesn't physically use it as it has it's own internal fan speed sensor.

    JR
    I ended up abandoning SYS FAN 2 and running my four Nexus 120mm fans off the two three-pin fan headers with the help of Y-cables. I use two FanMate 2's to control speed. It works nicely, but I did have to reroute my cables.

  2. #12
    Join Date
    Oct 2007
    Posts
    2

    Default Re: P35-DS4 fan problems

    Yeah, same here. Good thing my arctic cooling pwm case fan comes with this PWM sharing thing... so both are connected to CPU_FAN and are controlled by smartfan.

    Quote Originally Posted by tima092384 View Post
    I ended up abandoning SYS FAN 2 and running my four Nexus 120mm fans off the two three-pin fan headers with the help of Y-cables. I use two FanMate 2's to control speed. It works nicely, but I did have to reroute my cables.
    GA-P35-DS4 (v2.0) F7 BIOS, 4 GB Crucial Ballistix @ 833mhz 4-4-4-12 2.0v, Q6600 G0 at 3.0ghz (333x9 FSB), Arctic Cooling Freezer 7 Pro, Vista64.

  3. #13

    Default Re: P35-DS4 fan problems

    Since many issues seem to be finally fixed with F11 Bios, i think it's time to bump up the issue with Sys Fan 2 again.
    Fans plugged to this connector don't get enough power, i recently tested with a regular 3-pin 8cm fan under F11:

    Sys 2 : 1900 rpm
    Sys 1 : 2700 rpm
    (i tried a pwm fan too, that one didn't even start to spin)

    So i thought it might be controlled by the Bios, but that's not the case, same speed under load and idle.
    Since it's also 4-pin PWM, i'm thinking this connector is actually supposed to be controlled by the Bios but has been omitted in the bios-programming.
    (i don't get why so many companies slack on the bios/firmware programming, it's sometimes a difference of only 2 minutes worktime, what's that compared to developing a whole motherboard?)

    I know i can just abandon it and connect directly to Power Supply or NorthBridge connector, i do however like to monitor the speeds.
    GA-Z77X-UD5H # F16-mod8
    i5-3570K # 4.1Ghz
    32GB Geil DDR3-1600 Evo Leggera
    Gigabyte GTX 660 OC
    Seasonic G-550

  4. #14
    Join Date
    Jan 2008
    Posts
    24

    Default Re: P35-DS4 fan problems

    I also have annoying problems with PWM fans. CPU fan
    speed can be adjusted using EasyTune, but since bios F8
    is seems that I cant go below some threshold value
    and fan always spins at approx. 40% duty or above , regardles of SmartFan settings. Behavior of SYS_FAN2 connector
    is beyond user control, and therefore useless. A have also noticed, as others, that fan connected to SYS_FAN2 never reach full speed.

    Actually, I expected full control over all fans. In reality
    we got only poor control (linear) of the CPU fan speed.
    P67A-UD4-B3 F2
    i5-2500K
    4x2GB Kingston HyperX XMP-1600 CL9
    8800 GTX
    Intel SSD 40GB, WD Green 1TB, 2xSamsung 400GB SATA RAID1
    Antec P182 + CP850 CXP

  5. #15
    Join Date
    Jan 2008
    Posts
    2

    Question Re: P35-DS4 fan problems

    I think maybe I am seeing the same problem as Va00. I upgraded yesterday to F11, and now my CPU fan speed has increased considerably. Previously, with F6 or F7, the idle speed was around 400 rpm, and the load speed around 900. Now, with Smart Fan Control Method set to Auto, the speed is constantly around 1150 rpm, which is nearly the maximum for my S-Flex 1200. Has any one any experience of setting to Legacy? I like the cool temperatures you get at these speeds, but I prefer the quiet I had before. Oh yes, and as I use linux instead of Windows, EasyTune is not an option.

  6. #16
    Join Date
    Jan 2008
    Posts
    1

    Default Re: P35-DS4 fan problems

    P35-DS3R F11 has the same problem. In SYS_FAN2 arctic cooling 120mm PWM fan and many many other 120mm fans cant run. Fans are dead until windows will not be uploaded and started up SPEEDFAN. SPEEDFAN can adjust this fan to 90% nominal speed. But many people dont use SPEEDFAN or use linux system. I think voltage is to low on SYS_FAN2 and fan can't start. Please fix it.
    Last edited by szympek; 01-13-2008 at 11:39 PM.

  7. #17

    Default Re: P35-DS4 fan problems

    Do you need to disable the automatic fan control in bios in order to use speedfan?
    GA-Z77X-UD5H # F16-mod8
    i5-3570K # 4.1Ghz
    32GB Geil DDR3-1600 Evo Leggera
    Gigabyte GTX 660 OC
    Seasonic G-550

  8. #18
    Join Date
    Jan 2008
    Posts
    24

    Default Re: P35-DS4 fan problems

    I think some definite answer from gigabyte is in place.
    Is any hope for usable PWM/Voltage CPU and SYS_FAN2 control in future BIOS and/or EasyTune?
    Even linear PWM control for both of these fans is usable,
    but i'm pretty sure that user-adjusted non-linear response of fan speed is not beyond ability of BIOS programmers.

    Is this really too much we want? Two PWM fans user-controlled by the motherboard was obviously intended (and advertised) by gigabyte, but none of them works now (F11 bios).

    Or maybe we could give up and buy fan controller,
    and gigabyte might remove useless fan connectors
    and lower price instead?
    P67A-UD4-B3 F2
    i5-2500K
    4x2GB Kingston HyperX XMP-1600 CL9
    8800 GTX
    Intel SSD 40GB, WD Green 1TB, 2xSamsung 400GB SATA RAID1
    Antec P182 + CP850 CXP

  9. #19
    Join Date
    Mar 2008
    Posts
    16

    Default Re: P35-DS4 fan problems

    Quote Originally Posted by szympek View Post
    P35-DS3R F11 has the same problem. In SYS_FAN2 arctic cooling 120mm PWM fan and many many other 120mm fans cant run.
    Same issue with newest GA-EP35-DS3 and BIOS F2.
    Installed an Arctic Cooling 120mm PWM fan, plugged it into SYS_FAN2 and fan didn't start.
    What is the use of having a connection on the motherboard for a PWM-fan if the connection doesn't work???

  10. #20
    Join Date
    Jan 2008
    Posts
    24

    Default Re: P35-DS4 fan problems

    Quote Originally Posted by xit2050 View Post
    Same issue with newest GA-EP35-DS3 and BIOS F2.
    Installed an Arctic Cooling 120mm PWM fan, plugged it into SYS_FAN2 and fan didn't start.
    What is the use of having a connection on the motherboard for a PWM-fan if the connection doesn't work???
    Have you tried SpeedFan? On my P35-DS4 I have disabled automatic fan speed in BIOS, changed PWM mode to "Software controlled" in SpeedFan/Configure/Advanced/IT8718F and now I'm getting full range of speeds on my Scythe Kama 120mm PWM fan connected to SYS_FAN2.
    P67A-UD4-B3 F2
    i5-2500K
    4x2GB Kingston HyperX XMP-1600 CL9
    8800 GTX
    Intel SSD 40GB, WD Green 1TB, 2xSamsung 400GB SATA RAID1
    Antec P182 + CP850 CXP

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