P35-DS3L (rev. 2) & SYS_FAN2 not working

[Four Eyes]

P35-DS3L (rev. 2), Intel Xeon E3110, F8a BIOS (I think, not at home) & SYS_FAN2 4-pin PWM fan header not working. Set BIOS for PWM fan setting and 4-pin PWM CPU fan works as should but not SYS_FAN2 4-pin header. How is SYS_FAN2 controlled? No big deal, board works great and other fan headers work. Is this something that may be addressed in a future BIOS update or is PWM fan control possible for SYS_FAN2, or is this a dead header?

[HemiRick]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Dunno but I have the same prob w a EP35-DS3P Sys_fan2 does not work...

[Lsdmeasap]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Yeah, I see this often. Mine actually was a little flaky for a while (Started slow sometimes) but is now fine. I just had a friend tell me his does not even sense or work period either.

So I am not sure if this is a BIOS error, or just bad factory work?

Hopefully Janus can chime in about this, but I think I have seen a reply by Janus about this saying it works fine on their end. Which It does I think, on some boards, sometime.

Mine is now fine By the way, so dunno?

[Lsdmeasap]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

I just found a user stating this worked for them >>>

Deactivate Smart Fan in BIOS. Then install Speedfan 4.33, enter Configure go to Advanced tab, select IT8718F blah blah (first item in menu), make sure all three PWM modes are in Software controlled mode. That's all! Then choose if you want automatic or manual fan speed control.

[GIGABYTE - Janus Yeh]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Set BIOS for voltage fan setting

[HemiRick]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

What There's no voltage setting for the fans in the BIOS? Has our factory support person gone mad?

[Lsdmeasap]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Seems to there in mine

[HemiRick]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Not for sys_fan2 which is the fan in question here....

[Lsdmeasap]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Ohh!

Yeah, Janus, there is NO controls or settings for any fan other then CPU!

[xit2050]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Ohh!

Yeah, Janus, there is NO controls or settings for any fan other then CPU!

That's what I've been saying for weeks in this thread: http://forums.tweaktown.com/f69/p35-...roblems-25690/

Does anyone ever read anything?

[Four Eyes]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

I tried set BIOS for VOLTAGE fan setting. SYS_FAN2 still no go.

[GIGABYTE - Janus Yeh]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

cpu and sys_fan2 SMARTfan FUNCTION SHOULD CONTROL TOGETHER.

[Lsdmeasap]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

How about is systems where sys_fan2 does not work at all, to sense or turn a fan on even?

Please Dont say RMA he is not going to do that. But I suppose that is the only thing to do in his case. This is the second board this user has already RMA'd GA-P35-DS4 2.1, so he is on his Third Non fully working board

Mine WAS hit or miss if it came on at startup, but now is fine so I dont know what fixed it as I have changed nothing lately.

[HemiRick]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

cpu and sys_fan2 SMARTfan FUNCTION SHOULD CONTROL TOGETHER.

Ahh this explains my fans behavior, it ran slow but I never noticed it speeding up with the CPU fan, will have to test this.

[Four Eyes]

Re: P35-DS3L (rev. 2) & SYS_FAN2 not working

Janus, SpeedFan can be configured to cause SYS_FAN2 to operate and be temperature controlled in RPM, but the maximum RPM seems less than expected. This leads me to believe this could be fixed with a BIOS change.