Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: GA-P35-DS4 Rev 2 has poor fan control




  1. #1
    Join Date
    Nov 2007
    Posts
    21

    Default GA-P35-DS4 Rev 2 has poor fan control

    I'm having problems with the 4-pin fan headers on my new GA-P35-DS4 Rev 2 motherboard running BIOS F8. I'm using "Smart Fan Control" for the CPU fan header, set to "Auto", and it does not start my heat sink fan (4-pin, ZeroTherm BTF90). The fan does start when the temperature approaches 50C, but I'd like it to run at low speed at all times. That's the way it worked on my old motherboard, an Intel D975XBX BadAxe. In addition, the other PWM header, SYS FAN 2, does not supply the full 12 V to a 3-pin fan attached to it. I had to stop using this header, because my Nexus fan attached to it wouldn't start. There appears to be no way to control the behavior of SYS FAN 2, so in effect, it's a useless header.

    I've tried EasyTune 5, and it is inadequate for a number of reasons:
    1. The fan adjustments it makes don't appear to stick between reboots, and since it causes a UAC prompt under Vista, running it automatically is not an option. (At least when I reboot, my CPU fan stops, and it doesn't restart until I run EasyTune again.)
    2. Making those adjustments is tedious, as the up/down arrows don't auto-repeat.
    3. The adjustment range is out of whack. To get my fan to start up, I have to set the minimum to 95%.
    4. It can only control the CPU fan.
    All adjustments EasyTune can make should be reflected in the BIOS, and it should not be necessary to run EasyTune as a startup program to get reasonable fan behavior. I've observed the same behavior with two HSF fans, a ZeroTherm BTF90 and a Zalman CNPS9500 (the 4-pin model, of course). Will these defects be addressed?

  2. #2
    Join Date
    Jul 2007
    Location
    Taipei, Taiwan
    Posts
    398

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    When you use "Smart Fan Control" for the CPU fan header, set to "Auto", will you try setup fan speed control mode in Voltage oR PWM?

  3. #3
    Join Date
    Nov 2007
    Posts
    36

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    even a programming change of Easytune5 to allow you to hold down the up/down buttons to autorepeat, or to enter fan settings manually , would be a good start IMHO
    lets hope Gigabyte can make this happen, because i love this board otherwise :)
    Intel Core2Duo E6750 @ 3.52Ghz ('Conroe') - stock voltage!
    Gigabyte GA-P35-DS4 rev. 2.0
    Arctic Cooling Freezer 7 Pro
    Crucial Ballistix Tracer 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Desktop Memory - Newegg 'Lanfest' edition
    (running 5:6 at 527mhz on stock voltage +.05)
    74G WD Raptor 10,000RPM
    BFG 8800GTX OC
    M-Audio Revolution 5.1
    Seasonic S12 600W PSU
    Intel® PRO/1000 PT Gigabit lan

  4. #4
    Join Date
    Nov 2007
    Posts
    21

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Quote Originally Posted by GIGABYTE - Janus Yeh View Post
    When you use "Smart Fan Control" for the CPU fan header, set to "Auto", will you try setup fan speed control mode in Voltage oR PWM?
    I have already tried PWM, and as expected, it behaved the same. I didn't try "Voltage", as I have PWM fans and they should work as PWM. I have turned off "Smart Fan Control", and the fan ran at full speed, so the header is capable of supplying the power. Because the fans work on my other motherboard, the problem is clearly with the Gigabyte board's implementation of PWM. I will try "Voltage" and let you know the results, but even if it works, this does not negate the problem with "Auto" and "PWM". They are broken.

    What about SYS FAN 2? That header also does not function properly, as described in my original message.

  5. #5
    Join Date
    Nov 2007
    Posts
    21

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Quote Originally Posted by tima092384 View Post
    I will try "Voltage" and let you know the results, but even if it works, this does not negate the problem with "Auto" and "PWM".
    I tried "Voltage", and it didn't help. Please fix the BIOS.

  6. #6
    Join Date
    Jul 2007
    Location
    Taipei, Taiwan
    Posts
    398

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Do you want to try F9K?
    janus.yeh@gigabyte.com.tw

  7. #7
    Join Date
    Nov 2007
    Posts
    21

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Quote Originally Posted by GIGABYTE - Janus Yeh View Post
    Do you want to try F9K?
    janus.yeh@gigabyte.com.tw
    Does it address the fan issues I've described? If it does, yes. If it does not, no. I don't want to just try things randomly and hope for the best, because that never works.

  8. #8
    Join Date
    Jul 2007
    Location
    Taipei, Taiwan
    Posts
    398

    Default Re: GA-P35-DS4 Rev 2 has poor fan control


  9. #9
    Join Date
    Nov 2007
    Posts
    21

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Just wanted to confirm that the F9 BIOS I downloaded from the Gigabyte web site does fix the CPU fan's failure to spin up. The fan idles at low speed, ramps up under load, and reduces its speed as the CPU temp declines. So, this BIOS update appears to have solved this problem completely. I haven't tested the SYS FAN 2 header, because I moved my fans to the two 3-pin headers with the help of splitters, with speed reduced by FanMate 2's. It's all working well.

  10. #10
    Join Date
    Jul 2007
    Location
    Taipei, Taiwan
    Posts
    398

    Default Re: GA-P35-DS4 Rev 2 has poor fan control

    Smart Fan Can Only Support Cpu Fan.

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •