Variable Fan speed control is not working.

[Galvin]

This is a serious problem. I ran sisoft sandra and to my suprise it said I have no variable fan speed control on my TH7II board.

I did a test I played quake3 for around 10 min, the CPUh heated to around 125F and the fan did not get louder on the P4T-E and the 850MV the fan always increased it's speed during quake3.

I checked the bios 4 times already, what is disabling the fan control, I have ACPI fan in the device list and ACPI thermal zone. It's possible this last bios flash on the ABIT dated december something may have a bug in it.


The fan is only spinning around 2700 rpm's which is fine when I am not running anything.

System windows XP

 

[AndrewT]

Connect the fan to the PSU not the motherboard and then you should have max speed on it.

<font color=red>Handsome A7V133 looking for long term relationship with a XP CPU. Prefer non smoker.</font color=red> 😉

 

[Galvin]

I don't want to have MAX speed on it all the time.
Plus the fan is not made to connect to a PSU.
I need a real solution not a work around.

 

[AndrewT]

Yeah you can get an adapter to make it PSU friendly, I got a few of those because older fans used to come with them.

If you don't want 100% all the time then you can make it with switches to run 12V, 7V, 5V. Lower voltage = quiet.

<font color=red>Handsome A7V133 looking for long term relationship with a XP CPU. Prefer non smoker.</font color=red> 😉

 

[Galvin]

Forget it, obviously you don't know that P4 systems and intel cpu's come with a variable speed fan. P4 systems are suppose to do this automatically.

You're not helping, you're just turning my problem into a science project.

 

[HonestJhon]

maybe there is a setting in the bios...?


-DAvid

-Live, Learn, then build your own computer!-

 

[Galvin]

I checked the bios many times. This would explain why my cpu has been getting hotter on the TH7II vs the P4T-E. 2700rpms is not enough cooling suprinsling, after playing quake3 the cpu seems to top out at around 125 to 130degrees F max. with 2700RPM fan cooling. Still that is going to be not enough in the summer when my room temp will hit temps of 90 to 95 degrees F. Hopefully i'll have the auto fan speed control fixed long before that.

 

[pr497]

the P4T-E comes with asus probe (obviously).
on the asus probe (which is nothing compared to MBM5)...you can set it so when the cpu hits a certain temperature (say 50C)...it will increase the speed of the fan.
im not sure about abit boards though.
maybe it does it automatically...i dont know.
but 130 F...which is around 55C...isnt all that bad...its borderline good/bad...but as long as your system doesnt lock up...then you should be fine.
my P4 topped out at 55C w/ its stock fan (running at about 2500rpm average)...and it works fine...but i got 2 case fans and a new heatsink/fan (coolermaster) and now it tops out at 45C.

😡 <A HREF="http://gamershq.madonion.com/compare2k1.shtml?2096468" target="_new">P4 + SDRAM</A> = <b>BAD</b> 😡

 

[AndrewT]

No I didn't know
My Volcano 7 does that too, but it measure the case temp not the cpu so I killed it and set it to HS 24/7. Yeah it's a bit loud but used to it.

<font color=red>Handsome A7V133 looking for long term relationship with a XP CPU. Prefer non smoker.</font color=red> 😉

 

[Galvin]

I found out my fan does indeed speed up but I have to be playing quake3 for a while seems the BIOS waits a certain amount of time before kicking the fan speed up.

I already have it clocked to 2.2GHZ, now I have a $600 cpu for $350, pretty cool. Running it at 2.0 and 2.2 shows no change in temp.